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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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Showing 451–500 of 9238 bids that are currently: Active.

Denotes bidding opportunities that have been amended

California - US Due Date
Corporate: Canyon Lake Water Treatment Plant - Mechanical sub
23 - Construction
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Jun. 24, 2026
Corporate: Bishop's Peak Elementary School Phase 2 New Classroom Building - Mechanical
23 - Construction
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May. 28, 2026
Corporate: Inglewood Transit Connector - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 14, 2026
Corporate: Lifetime San Jose CA - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 13, 2026
AIR CONDITIONER REPLACEMENT
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 14, 2026
AIR CONDITIONING UNIT REPLACEMENT
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 14, 2026
Heating, Ventilation, and Air Conditioning (HVAC)
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 21, 2026
WWES Boiler and Pump Replacement
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 20, 2026
MIDDLE SCHOOL HVAC REPLACEMENT
23 - Construction
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May. 19, 2026
Corporate: Granite Bay High School SPED Restrooms - HVAC
23 - Construction
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May. 14, 2026
Corporate: Ophir Water Treatment Plant - HVAC\/MECHNICAL
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 03, 2026
Rooftop Air Handling\/Heating Units Replacement
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 01, 2026
Upgrade HVAC @ OPS
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 13, 2026
HVAC Replacement Services
23 - Construction
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May. 20, 2026
Corporate: AMVA - HVAC
23 - Construction
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May. 19, 2026
Regional Wastewater Facility HVAC Improvements Phase 1
23 - Construction
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Jun. 04, 2026
Convention Center HVAC Control Upgrades
23 - Construction
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Jun. 04, 2026
Corporate: OUSD Garfield Elementary School - HVAC
23 - Construction
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May. 16, 2026
Corporate: Diamond Village Phase 2 - Mechanical\/HVAC
23 - Construction
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May. 26, 2026
Chiller
23 - Construction
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Jun. 11, 2026
Boiler Controls Retrofit
23 - Construction
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May. 27, 2026
HVAC UNITS
23 - Construction
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May. 22, 2026
Corporate: SAN T2E Lounge Expansion - HVAC
23 - Construction
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May. 20, 2026
Corporate: Terminal 2 East Lounge Expansion - HVAC
23 - Construction
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May. 21, 2026
Corporate: San Diego Airport Terminal 2 East Lounge Expansion C&S - HVAC
23 - Construction
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May. 20, 2026
On-Call HVAC Maintenance, Repair, and Emergency Services
23 - Construction
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May. 22, 2026
Corporate: Canyon Lake Water Treatment Plant Improvements Fixed Price Design-Build Project Delivery - HVAC
23 - Construction
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Jun. 24, 2026
Corporate: Gridley Behavioral Health - HVAC
23 - Construction
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May. 21, 2026
Corporate: HVAC UPGRADE & MODERNIZATION \u2013 SCHROEDER ELEMENTARY SCHOOL AND WILLMORE ELEMENTARY SCHOOL - HVAC
23 - Construction
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May. 14, 2026
Building Automation Controls Replacement
23 - Construction
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Jun. 02, 2026
AIR CONDITIONING UNIT REPLACEMENT
23 - Construction
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May. 26, 2026
AIR CONDITIONING UNIT REPLACEMENT
23 - Construction
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May. 26, 2026
SCHOOL KITCHEN MINI-SPLIT INSTALLATIONS
23 - Construction
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May. 27, 2026
Corporate: APHCV Baldwin Place Health Center (BPHC) Tenant Improvement Project - HVAC
23 - Construction
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May. 13, 2026
Testing, Adjusting, Balancing HVAC Systems
23 - Construction
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May. 27, 2026
Corporate: Gridley Behavioral Health Center - hvac
23 - Construction
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May. 21, 2026
Sand Canyon Headquarters and Operations Center HVAC Upgrades
23 - Construction
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Jun. 10, 2026
Corporate: Jesse Bethel High School Sports Fields Modernization - Air Distribution
23 - Construction
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May. 20, 2026
Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - HVAC subcontractor
23 - Construction
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Jun. 08, 2026
Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - Mechanical subcontractor
23 - Construction
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Jun. 08, 2026
Corporate: City of Garden Grove Wells 22, 26 # 27 PFAS WTP - HVAC\/MECHANICAL
23 - Construction
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Jun. 08, 2026
Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - HVAC
23 - Construction
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Jun. 08, 2026
Sources Sought Notice - Brand Name Class JA for HVAC Chiller Systems in Vandenberg SFB
23 - Construction
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May. 21, 2026
Corporate: Walden West Science School Modernization - HVAC
23 - Construction
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May. 15, 2026
Public Safety Facility Boiler Replacements
23 - Construction
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May. 26, 2026
Corporate: City of Garden Grove Wells 22, 26, & 27 PFAS Water Treatment Plants Project - HVAC
23 - Construction
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Jun. 08, 2026
HVAC Modifications
23 - Construction
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May. 26, 2026
Replace Air Handling Unit
23 - Construction
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May. 18, 2026
Install Water Softener and Hot Water Heaters at FCI Mendota
23 - Construction
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Jun. 17, 2026
Corporate: Valley Village Stormwater Capture Project - Mechanical
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 10, 2026

Showing 451–500 of 9238 bids that are currently: Active.