The Specialty Trade Contractors subsector comprises establishments whose primary activity is performing specific activities (e.g., pouring concrete, site preparation, plumbing, painting, and electrical work) involved in building construction or other activities that are similar for all types of construction, but that are not responsible for the entire project. The work performed may include new work, additions, alterations, maintenance, and repairs. The production work performed by establishments in this subsector is usually subcontracted from establishments of the general contractor type or for-sale builders, but especially in remodeling and repair construction, work also may be done directly for the owner of the property. Specialty trade contractors usually perform most of their work at the construction site, although they may have shops where they perform prefabrication and other work. Establishments primarily engaged in preparing sites for new construction are also included in this subsector. There are substantial differences in types of equipment, work force skills, and other inputs required by specialty trade contractors. Establishments in this subsector are classified based on the underlying production function for the specialty trade in which they specialize. Throughout the Specialty Trade Contractors subsector, establishments commonly provide both the parts and labor required to complete work. For example, electrical contractors supply the current-carrying and noncurrent-carrying wiring devices that are required to install a circuit. Plumbing, heating, and air-conditioning contractors also supply the parts required to complete a contract. Establishments that specialize in activities primarily related to heavy and civil engineering construction that are not normally performed on buildings, such as the painting of lines on highways are classified in Subsector 237, Heavy and Civil Engineering Construction. Establishments that are primarily engaged in selling construction materials are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade, based on the characteristics of the selling unit.
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Backflow Testing and Certification
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 13, 2026 |
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Corporate: Palmdale School District ELOP Center - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Corporate: American Union Elementary School, Music Building - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: FOWLER HIGH SCHOOL 16 CLASSROOM BLDG. - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 07, 2026 |
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Corporate: Wastewater System Expansion Project - PLUMBING
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 08, 2026 |
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Plumbing Repairs Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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Treatment for Boiler\/Chiller Water Loop Systems
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Backflow Prevention
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Interior Sprinklers
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Plumbing Fixtures and Equipment
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Plumbing Installation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Water Heater Installation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Ramkabir Permanent Supportive Housing Project - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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Corporate: Sitework for New 2 Story Classroom Building - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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Park Plumbing Project
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 13, 2026 |
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Corporate: Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 20, 2026 |
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Corporate: Eastern Municipal Water District (EMWD) San Jacinto Valley Advanced Water Purification Facility (AWPF) - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 19, 2026 |
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Corporate: McClellan Park Bay G & H Tenant Improvements - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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Corporate: McClellan Park Bay G & H Tenant Improvements - Fire sprinkler modifications
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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Corporate: Biola CSD Wastewater Treatment Plant Improvements - U\/G Piping
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 21, 2026 |
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Corporate: Biola CSD Wastewater Treatment Plant Improvements - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 21, 2026 |
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Corporate: Biola CSD Wastewater Treatment Plant Improvements - Piping DIP\/PVC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 21, 2026 |
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Corporate: Westminster EEC-Outdoor Classroom and Campus Upgrade - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: Hodge Elementary Parking Lot Expansion - Irrigation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Corporate: Westminster EEC-Outdoor Classroom and Campus Upgrade - Potable Water Irrigation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: Westminster EEC-Outdoor Classroom and Campus Upgrade - Site Water Distribution
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: Scattergood Generating Station Units 1 & 2 Green Hydrogen-Ready Modernization Project - Valve Installation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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Corporate: Baker Street RAD Improvements - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 07, 2026 |
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Backflow Replacement and Repairs, Multiple Locations
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Corporate: Cathedral City High School - Increment 02c - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Corporate: Buccaneer Lift Station Fixed Price Design-Build - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Complete Roof System
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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FPCM-CAL-I001055-M085-KR ROOF ASSEMBLY
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Complete Roofing System
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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Corporate: NORSD WRRF Expansion - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Gym Skylight Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: George Washington High School Gym Skylight Replacement - roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Gilroy Area office - Roof Repair Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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INSTRUMENT HOUSE ROOF REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: WRRF Expansion - roofing subcontractor
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Corporate: WRRF Expansion - sheet metal\/metal roof subcontractor
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Corporate: LAUSD Palisades Charter Elementary School - ROOFING
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 08, 2026 |
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Corporate: LAUSD Palisades Charter Elementary School - SKYLIGHTS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 08, 2026 |
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Corporate: SDUSD Loma Portal Elementary School Whole Site Modernization - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Corporate: Inland Feeder\/San Bernardino Valley Municipal Water District Foothill Pump Station Intertie, Stage 1 - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Sanchez ES Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Corporate: Behavioral Health Campus at Metropolitan State Hospital - Roofing (Thermal\/Moisture Protection)
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Roof Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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Corporate: Paradise Behavioral Health Center - Roofing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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