Our Contractors Exam Center teams will help prepare you for the Arizona contractors exams, as well as help you through the maze of government forms and red tape. Our trade courses are developed by construction professionals and are the most current available for the Arizona and Nevada residential, commercial, and business examinations. The professional service we provide will assure you that you will pass the first time and that your application will be accepted the first time without delay. Remember, incomplete or incorrect applications will be rejected by the Registrar of Contractors regardless of how urgently the license is needed.
DESCRIPTION OF TRADE COURSES FOR THE ARIZONA & NEVADA CONTRACTORS EXAM
The Business Management and Law course covers the Arizona and Nevada contractor license laws and regulations, safety, estimating, scheduling. bonding, insurance, lien law, contracts, payroll, accounting, taxes, labor law and project management.
Our trade courses cover the specific techniques and practices required in your particular trade as well as estimating quantities, reading plans, symbols, specifications and codes applicable to the Arizona and Nevada exams you will take.
Courses are continuous with no set starting or ending time. The program uses a self-paced method that allows an accelerated course for students with an extensive background or limited time. Individual “one on one” tutoring is constantly available.
OUR PROVEN SUCCESS WITH TRADE COURSES
Since 1977, our schools have assisted over 70,000 contractors in obtaining their state licenses and certifications. You will find listed below all of the courses we currently have available. Those that are listed in black text require only taking the Business while those listed in red text require both the business and trade exams. We invite you to drop by our office for a free consultation to review your needs with no obligation.
Arizona Contractor’s License Classifications
What are the contractor license classifications?
Below you will find a list of the trade courses we offer. Those that are in red text require a trade exam as well as the business exam. Those in black only require only the business exam The Arizona Registrar of Contractors issues separate licenses for commercial and residential work, and dual licenses that cover both commercial and residential, for each particular trade or field of the construction profession.
Residential contracting is defined as construction on residential structures such as houses, townhouses, condominiums or cooperative units and apartment complexes of four units or less. Residential construction also includes any appurtenances on or within residential property lines, connection to utility service and sewer lines, meters and mechanical or structural service for any residential structure.
- Fixed works
- Streets
- Roads
- Power and utility plants
- Dams
- Hydroelectric plants
- Sewage and waste disposal plants
- Bridges
- Tunnels
- Overpasses
- Public parks
COMMERCIAL construction is anything other than RESIDENTIAL
A-4 through A-19 and CR-2 through CR-80 classifications. This classification does not include work authorized by the B-1, B-2 or B-3 scopes.
Drilling includes horizontal and vertical drilling or boring, constructing, deepening, repairing, or abandoning wells; exploring for water, gas, and oil; and constructing dry wells, and monitor wells. Also included is the erection of rigs, derricks and related substructures, and installation, service and repair of pumps and pumping equipment.
This classification allows the licensee to apply oil surfacing or other similar products; place shoring, casing, geotextiles or liners; and perform incidental blasting or drilling as required for the licensee to move, alter, or repair earthen materials by: 1. Digging 2. Trenching 3. Grading 4. Horizontal boring 5. Compacting 6. Filling This license does not allow the licensee to excavate for water, gas or oil wells.
Installation of piers and foundations using concrete, rebar, post-tension and other materials common to the industry. Includes pile driving, excavation, forming and other techniques and equipment common to the industry.
Construction, service, and repair of swimming pools and spas, including water and gas service lines from point of service to pool equipment, wiring from pool equipment to 1st readily accessible disconnect, pool piping, fittings, backflow prevention devices, waste lines, and other integral parts of a swimming pool or spa. Also included is the installation of swimming pool accessories, covers, safety devices, and fencing for protective purposes, if in the original contract.
Field fabrication, erection, repair, and alteration of architectural and structural steel and aluminum materials common to the industry, including field layout, cutting, assembly, and erection by welding, bolting, wire tying or riveting.
Installation and repair of any project involving sewer access holes, the laying of pipe for storm drains, water and gas lines, irrigation, and sewers. Includes connecting sewer collector lines to building drains and the installation of septic tanks, leach lines, dry wells, all necessary connections, liners and related excavating and backfilling
Installation of asphalt paving, and all related fine grading on streets, highways, driveways, parking lots, tennis courts, running tracks, play areas, and gas station driveways and areas, using materials and accessories common to the industry. Includes the necessary excavation and grading only for height adjustment of existing sewer access holes, storm drains, water valves, sewer cleanouts, and drain gates. Also included is the scope of work allowed by the A-15 Seal Coating Classification.
Application of seal coating to asphalt paving surfaces. Includes repair of surface cracks and application of painted marking symbols.
All work necessary for the production and distribution of water including drilling well, setting casing and pump, related electrical work, related concrete work, excavation, piping for storage and distribution, storage tanks, related fencing, purification and chlorination equipment.
Installation, alteration, and repair of transmission lines on public right-of-ways, including erection of poles, guying systems, tower line erection, street lighting of all voltages, and all underground systems including ducts for signal, communication, and similar installations. Installing transformers, circuit breakers, capacitors, primary metering devices and other related equipment of all electrical construction is included. All electrical systems of less than 600 volts on or inside a building are excluded. A-19 SWIMMING POOLS, INCLUDING SOLAR Construction, service, and repair of swimming pools and spas, with or without solar water heating devices, including water and gas service lines from point of service to pool equipment, wiring from pool equipment to first readily accessible disconnect, pool piping, fittings, backflow prevention devices, waste lines and other integral parts of a swimming pool, spa and attached solar water heating device. Also included are swimming pool accessories, covers, safety devices, and fencing for protective purposes, if in the original contract.
General Commercial Contracting
Construction, alteration, and repair in connection with any structure built, being built, or to be built for the support, shelter, and enclosure of persons, animals, chattels, or movable property of any kind. This scope includes the supervision of all or any part of the above and includes the management, or direct or indirect supervision of any work performed. Also included are the scopes of work allowed by the CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-, or B-3 scopes.
Small commercial construction in connection with any new structure or addition built, being built, or to be built for the support, shelter and enclosure of persons, animals, chattels or movable property of any kind for which the total amount paid to the licensee does not exceed $750,000. This scope includes the supervision of all or any part of the above and includes the management or direct or indirect supervision of any work performed. Also included are the scopes of work allowed by the CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-, or B-3 scopes.
Residential Contracting
Construction of all or any part of a residential structure or appurtenance. Also included are the scopes of work allowed by the B-3 and CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-1, or B-2 scopes.
Remodeling or repair of an existing residential structure or appurtenance except for electrical, plumbing, mechanical, boilers, swimming pools or spas and water wells, which must be subcontracted to an appropriately licensed contractor. The scope of work allowed under the CR-7 carpentry classification is included within this scope. This classification does not include work authorized by the A-, B-1, or B-2 scopes.
Construction and repair of appurtenances to residential structures. Work related to electrical, plumbing, air conditioning systems, boilers, and water wells must be subcontracted to an appropriately licensed contractor. This scope includes the CR-21, B-5 and all B-4R subclassifications. Additional Scope Information (From “Rules” R4-9-101 Definitions Page 1) Appurtenances means all structures and improvements subordinate to a residence within residential property lines, excluding the residential structure itself, such as driveways, fences, patios, swimming pools, landscaping, sport courts and gazebos.
Construction and repair of swimming pools and spas. Installation of code required pool barriers around the swimming pool or spa and installation of utilities from the point of service to the pool equipment. Construction of other structures or appurtenances is excluded. This scope includes all B-5R subclassifications.
The scope of work allowed in this classification is the same as B-5 (including all B-5R subclassifications) with the inclusion of solar heating devices.
Construction and repair of spas and hot tubs. Installation of code required pool barriers around the spa or hot tub and installation of utilities from the point of service to the spa equipment are included.
Specialty Residential Contracting
This classification allows the licensee to apply oil surfacing or other similar products and place shoring, casing, geotextiles or liners as required for the licensee to move, alter, or repair earthen materials by: 1. Digging 2. Trenching 3. Grading 4. Horizontal boring 5. Compacting 6. Filling
Installation and repair of steam and hot water boilers. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel. This scope includes the C-4R sub-classification.
Service and minor repair of residential pools and accessories, excluding plumbing connections to a potable water system, gas lines, gas chlorine systems, and electrical work beyond the 1st disconnect. This classification does not include a complete replacement of plaster or pebble pool interiors and decks.
Installation and repair of concrete, concrete products, and accessories common to the industry.
Installation and repair of electrical systems.
Installation and repair of paved areas using materials and methods common to the industry, including asphalt curbs, concrete bumper curbs, headers, and striping.
Installation and repair of approved types of fire prevention and fire protection systems including all mechanical apparatus, devices, piping, low voltage signaling systems, and equipment common to the fire protection industry. Installation of all other electrical devices, apparatus, and wiring must be subcontracted to a properly licensed contractor.
Installation and repair of architectural and structural shapes and members common to the industry, including reinforcing steel which may be used as structural members for buildings, equipment, and structures.
Disconnection of utilities is permitted, but connection of utilities and construction of foundations are not.
Installation and repair of water and gas piping systems, fire protection systems, and sewage treatment systems. Included are all fixtures, vents, and devices common to the industry, as well as solar applications. This scope includes all C-37R subclassifications.
Installation and repair of comfort air conditioning systems, including refrigeration, evaporative cooling, ventilating, and heating with or without solar equipment. Installation and repair of machinery, units, accessories, refrigerator rooms, and insulated refrigerator spaces, and controls in refrigerators. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel. This scope includes all C-39R subclassifications.
Installation and repair of wells, including test boring, exploratory drilling and all materials and devices common to the industry.
Remodeling, repairs, and improvements to existing structures or appurtenances not to exceed $5,000 for labor and materials per project per dwelling or appurtenance. The minor home improvement contractor shall not perform structural work to any existing structures or appurtenances, including load bearing masonry or concrete work (with the exception of on-grade flat work), and load bearing carpentry work (with the exception of patio or porch covers). All electrical, plumbing, air conditioning, heating, boiler, and roofing work shall be performed by an appropriately licensed contractor.
General Dual Engineering Contracting
This classification allows the scope of work permitted by the commercial A- General Engineering and the B-4 General Residential Engineering licenses.
This classification allows the scope of work permitted by the commercial A-9 Swimming Pools and the residential B-5 General Swimming Pool licenses.
This classification allows the scope of work permitted by the commercial A-19 Swimming Pools, Including Solar and the residential B-6 General Swimming Pools, Including Solar licenses.
This classification allows the scope of work permitted by the B-1 General Commercial Contractor and the B- General Residential Contractor licenses.
This classification allows the scope of work permitted by the B-2 General Small Commercial and the B- General Residential Contractor licenses.
This classification allows the licensee to install or repair pre-manufactured acoustical ceiling and wall systems. This classification does not allow the licensee to install or repair electrical or mechanical systems.
This classification allows the scope of work permitted by the commercial A-5 Excavating, Grading, and Oil Surfacing and the residential R-2 Excavating, Grading, and Oil Surfacing licenses.
This classification allows the licensee to place concrete footings and concrete slabs as required for the licensee to install or repair: 1. Window awnings 2. Door hoods 3. Freestanding or attached canopies 4. Carport and patio covers constructed of metal, fabric, fiberglass, or plastic 5. Screened and paneled enclosures, which are not intended for use as habitable spaces, using metal panels, plastic inserts, and screen doors. A minimum of 60% of the wall area of an enclosure shall be constructed of screening material. 6. Fascia panels 7. Flashing and skirting 8. Exterior, detached metal storage units This classification does not allow the licensee to install or repair electrical, plumbing, or air conditioning systems.
This classification allows the scope of work permitted by the commercial C-4 Boilers, Steamfitting and Process Piping and the residential R-4R Boilers licenses.
This classification allows the scope of work permitted by the commercial C-6 Swimming Pool Service and Repair and the residential R-6 Swimming Pool Service and Repair licenses.
This classification allows the licensee to install or repair: 1. Rough carpentry 2. Finish carpentry 3. Hardware 4. Millwork 5. Metal studs 6. Metal doors or door frames.
This classification allows the licensee to prepare a surface as required for the licensee to install or repair the following floor covering materials: 1. Carpet 2. Floor tile 3. Wood 4. Linoleum 5. Vinyl 6. Asphalt 7. Rubber 8. Concrete coatings CR-9 CONCRETE This classification allows the scope of work permitted by the commercial C-9 Concrete and the residential R-9 Concrete licenses. CR-10 DRYWALL This classification allows the licensee to install or repair: 1. Gypsum wall board 2. Ceiling grid systems as supporting members for gypsum drywall 3. Movable partitions 4. Wall board tape and texture 5. Non-load bearing, lightweight, steel wall partitions.
This classification allows the scope of work permitted by the commercial C-11 Electrical and residential R-11 Electrical licenses.
This classification allows the licensee to install or repair: 1. Elevators 2. Dumbwaiters 3. Escalators 4. Moving walks and ramps 5. Stage and orchestra lifts.
This classification allows the licensee to install or repair: 1. Metal, wood, and cement block fencing 2. Automatic gates 3. Fire access strobes 4. Highway guard rails 5. Cattle guards 6. Low voltage U.L. approved electrical fence protective devices of less than 25 volts and 100 watts This classification does not allow the licensee to install or repair retaining walls. CR-15 BLASTING This classification allows the licensee to drill, bore, move earth, and build temporary shelters or barricades, as required for the licensee’s use of explosives and explosive devices for: 1. Excavation 2. Demolition 3. Geological exploration 4. Mining 5. Construction related blasting
This classification allows the scope of work permitted by the commercial C-16 Fire Protection Systems and the residential R-16 Fire Protection licenses.
This classification allows the scope of work permitted by the commercial A-11 Steel and Aluminum Erection and the residential R-17 Structural Steel and Aluminum licenses.
This classification allows the licensee to treat, condition, prepare, and install: 1. Topsoil 2. Plants and decorative vegetation 3. Non-loadbearing concrete 4. Uncovered patios, walkways, driveways made of brick, stone, pavers or gravel 5. Wooden decks no higher than 29 inches above finish grade 6. Decorative garden walls up to six feet from finish grade 7. Fences and screens up to six feet from finish grade 8. Retaining walls up to three feet from the finish grade of the lower elevation 9. Wood-burning fire pit no higher than 16 inches above finish grade 10. Low voltage landscape lighting 11. Water features that are not attached to swimming pools; including any necessary: electrical wiring of 120 volts or less, connection to potable water lines, backflow prevention devices, hose bibs, excavating, trenching, boring, backfilling, or grading 12. Irrigation systems, including any necessary: electrical wiring of 120 volts or less, connection to potable water lines, backflow prevention devices, hose bibs, excavating, trenching, boring, backfilling, or grading This classification does not allow the licensee to install, contract for, or subcontract new electrical service panels, gas or plumbing lines, blasting, outdoor kitchens, gazebos, room additions, swimming pools, pool deck coatings, barbeques, concrete driveways, load bearing walls, or perimeter fencing.
This classification allows the licensee to fabricate, install, or repair non-structural ornamental metal, such as: 1. Metal folding gates 2. Guard and hand rails 3. Wrought iron fencing and gates 4. Window shutters and grilles 5. Room dividers and shields 6. Metal accessories common to the industry This classification does not allow the licensee to install fire escapes and stairs. CR-29 MACHINERY (as restricted by Registrar) CR-31 MASONRY This classification allows the licensee to grout, caulk, sand blast, tuckpoint, mortar wash, parge, clean and weld reinforcing steel as required for the licensee to install or repair: 1. Masonry 2. Brick 3. Concrete block 4. Insulating concrete forms 5. Adobe units 6. Stone 7. Marble 8. Slate 9. Mortar-free masonry products
This classification allows the licensee to perform surface preparation, caulking, drywall patching, drywall taping, sanding, and cleaning as required for the licensee to install, apply or repair: 1. Wallpaper 2. Wall covering cloth 3. Wall covering vinyl 4. Decorative texture 5. Paint
This classification allows the licensee to install laths, metal studs, metal grid systems, or other bases as required for the licensee to coat surfaces by trowel or spray with combinations of: 1. Sand mixtures (e.g. stucco) 2. Gypsum plaster 3. Cement 4. Acoustical plaster 5. Swimming pool interiors (excluding tile)
This classification allows the scope of work permitted by the commercial C-37 Plumbing and the residential R-37R Plumbing licenses.
This classification allows the licensee to install or repair posts, poles, supports, paint, and electrical wiring as required for the licensee to fabricate, install or repair: 1. Signs 2. Displays 3. Flagpoles
This classification allows the scope of work permitted by the commercial C-39 Air Conditioning and Refrigeration and the residential R-39R Air Conditioning and Refrigeration licenses.
This classification allows the licensee to install supports, fastening systems, adhesives, mastics, or plastics as required for the licensee to install or repair: 1. Insulation materials 2. Preformed architectural acoustical materials 3. Insulation protecting materials CR-41 SEPTIC TANKS AND SYSTEMS This classification allows the licensee to excavate, install or repair pipe, backfill, and compact soil as required for the licensee to install or repair: 1. Septic tanks 2. Aerobic digesters 3. Leaching fields CR-42 ROOFING This classification allows the licensee to apply or install weatherproofing (i.e. asphaltum, pitch, tar, felt, glass fabric, or flax) or roof accessories (i.e. flashing, valleys, gravel stops, or sheet metal) as required for the licensee to install or repair: 1. Roof tile 2. Shingles 3. Shakes 4. Slate 5. Metal roofing systems 6. Urethane foam 7. Roof insulation or coatings on or above the roof deck This classification allows the licensee to replace up to three sheets (96 square feet) of plywood on the roof substrate; and install new or replace existing skylights where it does not require changes to the roof framing or roof structure.
This classification allows the licensee cut, fabricate, install or repair: 1. Sheet metal 2. Cornices 3. Flashings 4. Gutters 5. Leaders 6. Pans 7. Kitchen equipment 8. Duct work 9. Skylights 10. Patented chimneys 11. Metal flues 12. Metal roofing systems
This classification allows the licensee to prepare a surface as required for the licensee to install or repair the following tile products on horizontal and vertical surfaces: 1. Ceramic 2. Clay 3. Faience 4. Metal 5. Mosaic 6. Glass mosaic 7. Paver 8. Plastic 9. Quarry 10. Stone tiles such as marble or slate 11. Terrazzo Installation of shower doors and tub enclosures are included when a part of the original contract. CR-53 WATER WELL DRILLING This classification allows the scope of work permitted by the commercial C-53 Water Well Drilling and the residential R-53 Drilling licenses. CR-54 WATER CONDITIONING EQUIPMENT This classification allows the licensee to perform trenching, backfilling, and grading; and install and repair piping, fittings, valves, concrete supports, and electrical control panels of less than 25 volts and required grounding devices; as required for the licensee to install or repair: 1. Water conditioning equipment 2. Misting systems 3. Exchange tanks 4. Indirect waste pipe carrying brine, backwash and rinse water to the point of disposal
This classification allows the licensee to weld metals.
This classification allows the licensee to install or repair temporary ramps, barricades, and pedestrian walkways as required for the licensee to demolish, dismantle, or remove structures not intended for reuse. This classification does not allow the licensee to use explosives.
This classification allows the scope of work permitted by the commercial C-58 Comfort Heating, Ventilating, Evaporative Cooling and the residential R-39R Warm Air Heating, Evaporative Cooling, and Ventilating licenses.
This classification allows the licensee to install or repair millwork such as: 1. Cabinets 2. Counter tops 3. Case sash 4. Door trim 5. Metal doors 6. Automatic door closers 7. Wood flooring
For projects of $50,000 or less, this classification allows the licensee, on existing structures, to install or repair: 1. Rough carpentry 2. Finish carpentry 3. Roofing 4. Hardware 5. Millwork 6. Metal studs 7. Metal doors or door frames Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor.
This classification allows the licensee to install or repair: 1. Reinforcing bar 2. Post-tension 3. Wire mesh
This classification allows the licensee to install and repair appliances. This classification does not allow the license to install or repair gas, electrical, or plumbing lines.
This classification allows the licensee to install or repair weatherproofing, caulking, sealants, and adhesives as required for the licensee to assemble, install or repair: 1. Glass products 2. Window film 3. Window treatments 4. Steel and aluminum glass holding members
This classification allows the scope of work permitted by the commercial A-15 Seal Coating and the residential R-13 Asphalt paving licenses.
This classification allows the licensee to build antenna towers on existing structures as required for the licensee to install, service or repair: 1. Alarm systems 2. Telephone systems 3. Sound systems 4. Intercommunication systems 5. Public addressing systems 6. Television or video systems 7. Low voltage signaling devices 8. Low voltage landscape lighting that does not exceed 91 volts 9. Master and program clocks (only low voltage wiring and needed equipment)
This classification allows the scope of work permitted by the commercial A-14 Asphalt Paving and the residential R-13 Asphalt Paving licenses.
This classification allows the scope of work permitted by the commercial C-74 Boilers, Steamfitting and Process Piping, Including Solar and the residential R-4 Boilers Including Solar licenses.
This classification allows the scope of work permitted by the commercial C-77 Plumbing Including Solar and the residential R-37 Plumbing Including Solar licenses.
This classification allows the scope of work permitted by the commercial C-78 Solar Plumbing Liquid Systems Only and the residential R-37R Solar Plumbing Liquid Systems Only licenses.
This classification allows the scope of work permitted by the commercial C-79 Air Conditioning and Refrigeration Including Solar and the residential R-39 Air Conditioning and Refrigeration Including Solar licenses.
This classification allows the scope of work permitted by the commercial A-12 Sewers, Drains, and Pipe Laying and the residential R-37R Sewers, Drains and Pipe Laying licenses. SPECIALTY COMMERCIAL CONTRACTING
Installation, alteration, and repair of steam and hot water systems and boilers, including chimney connections, flues, refractories, burners, piping, fittings, valves, thermal insulation, and accessories; fuel and water lines from source of supply to boilers; process and specialty piping and related equipment; pneumatic and electrical controls. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
Service, replacement, and repair of swimming pools including all existing connections and equipment. Pool gas heaters and gas piping from meter to heater may be installed only if the existing line and gas supply are adequate. Application of pool coatings to interior of pool in conjunction with minor repairs to pool tile, plaster, and decks. Excluded are chlorine gas connections, connections to potable water, and electric connections beyond first readily accessible disconnect. This classification excludes a complete replacement of plaster or pebble pool interiors and decks.
All work in connection with the processing, proportioning, batching, mixing, conveying, and placing of concrete composed of materials common to the concrete industry, including finishing, coloring, curing, repairing, testing, drilling, sawing, grinding, chipping, and grouting. Placing film barriers, sealing, and waterproofing are included. Construction, centering, and assembling forms, molds, insulating concrete forms, slipforms, and pans. Trenching, excavating, backfilling, and grading in connection with concrete construction. Installation of embedded items essential to or comprising an integral part of the concrete or concrete construction, including reinforcing elements and accessories.
Installation, alteration, and repair of any wiring, related electrical material and equipment used in the generating, transmitting, or utilization of electrical energy less than 600 volts, including all overhead electrical wiring on public right-of-ways for signs and street decorations, and all underground electrical distribution systems of less than 600 volts serving private properties. Installation, alteration, and repair on other than public right-of-ways of all outside, overhead, and underground electrical construction and all wiring in or on any building of less than 600 volts.
Installation, alteration, and repair of fire protection systems using water, steam, gas, or chemicals. Included is any required excavation, trenching, backfilling and grading, piping from structure, and connections to off-premise water supply adjacent to property involving a fire protection system. Systems may include the following areas of work and related equipment: restaurant hood protection systems; fire pumps and drivers; pressure and storage tanks; all piping and valves; sprinkler heads and nozzles; and application of materials for the prevention of corrosion or freezing. Also included are air compressors, air receivers, bottled inert gases, pressurized chemicals, manifolds, pneumatic, hydraulic, or electrical controls, low voltage signaling systems, control piping, and the flushing and testing of systems.
Installation of lightweight (not to exceed 14 gauge) metal wall partitions, including suspended metal ceiling grid systems, as supporting members for the application of building materials such as: application and repair of gypsum plaster, cement, acoustical plaster, or a combination of materials and aggregates, that create a permanent coating; the application of such materials over any surface which offers either a mechanical or suction type bond, sprayed, dashed, or troweled to the surface; surface sandblasting preparatory to plastering or stucco; installation of plastering accessories and lath products manufactured to provide a key or suction type bond for the support of various type plaster coatings; and installation and repair of gypsum wall board, pointing, accessories, taping, and texturing on structures both interior and exterior.
Installation, alteration, and repair of all plumbing when performed solely within property lines and not on public easements or right-of-ways, except as hereinafter provided. Installation, alteration, and repair of all piping, fixtures, and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semi-fluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinklers; water conditioning equipment; piping; and equipment for swimming pools. Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating, and hot water supply systems operating at pressures not exceeding 30 PSIG, or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces, excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems. Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements or right-of-ways. Pipe installed across public property may not be increased in size, or make any other connection between the point of exit from private property to the point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
Installation, alteration, and repair of refrigeration and evaporative cooling systems. Installation, alteration, and repair of heating systems of “wet”, “dry” or radiant type. “Wet” systems include steam or hot water boilers and coils, or baseboard convectors, and are limited to 30 PSIG operating pressure of 220° F for hot water and 15 PSIG operating pressure for steam. Dry systems include gas fired furnaces and space heaters. Installation, alteration, and repair of ventilation systems includes duct work, air filtering devices, water treatment devices, pneumatic or electrical controls, and control piping. Thermal and acoustical insulation of refrigerant pipes and ductwork, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from service connection to the equipment it serves. Testing and balancing of refrigerant, cooling, heating circuits, and air handling systems. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
Installation, alteration, and repair of refrigeration equipment and systems used for processing, storage, and display of food products and other perishable commodities. Includes commercial, industrial, and manufacturing processes requiring refrigeration excluding comfort air conditioning. Systems may also include the following areas of work and related equipment: temperature, safety and capacity controls, thermal insulation, vibration isolation materials and devices; water treatment devices; construction and installation of walk-in refrigeration boxes, liquid fuel piping and tanks, water and gas piping from equipment to service connection; and testing and balancing of refrigeration equipment and systems. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
Drill new water wells or deepen existing water wells by use of standard practices including the use of cable tools, compressed air percussion, rotary, air rotary, or reverse circulation rotary methods. Includes installing casing, gravel pack, perforating and sanitary seals. Repair existing wells by sand pumping, jetting, acidizing, swabbing, clean out, re-perforating, swaging, installation of annealed lines, and the removal of debris. Includes photographing interior of wells with appropriate equipment. Installation of jet and submersible pumps; electrical pump controls and wiring from pump equipment to first readily accessible disconnect; and water line to storage or pressure tank, not to exceed 50 linear feet. Use of a test pump to develop a new well, or repair an existing well, when provided in contract, is limited to 5 horsepower. Installation of concrete pump bases not to exceed 50 square feet. Installation of protective fencing when included in original contract.
Installation, alteration, and repair of warm air heating systems, gas fired furnaces and space heaters, ventilation and evaporative cooling units, or any combination of these. Systems may include the following areas of work and related equipment; duct work, air filtering devices, pneumatic or electrical controls, control piping, thermal and acoustical insulation, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from service connection to equipment it serves. Testing and balancing of air handling systems. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
Installation, alteration, and repair of steam and hot water systems and boilers including solar. Also included are chimney connections, flues, refractories, burners, piping, fittings, valves, thermal insulation and accessories; fuel and water lines from source of supply to boilers; process and specialty piping and related equipment; pneumatic and electrical controls. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
Installation, alteration, and repair of all plumbing including solar, when performed solely within property lines and not on public easements or right-of-ways except as hereinafter provided. Installation, alteration, and repair of all piping, fixtures and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semi-fluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinkler systems; water conditioning equipment; piping and equipment for swimming pools. Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating and hot water supply systems operating at pressures not exceeding 30 PSIG or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems. Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements. Pipe installed across public property may not be increased in size or make any other connection between the point of exit from private property to point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
Installation, alteration, and repair of solar water heating systems operating at temperatures not exceeding 220° F, including thermosyphon, direct (open loop), and indirect (closed loop),but excludes air as a transfer medium. Includes installation of collectors, storage and expansion tanks, heat exchangers, piping valves, pumps, sensors and low voltage controls which connect to existing plumbing and electrical stub-outs at the water tank location. Installation of solar water heating systems for swimming pools which tie into and operate from the conventional pool systems, but excludes all non-solar plumbing, electrical and mechanical systems and components. Installation of back-up and auxiliary heating systems only when such systems are included in the original contract and when such systems are an integral part of the solar collector or storage equipment.