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The Sector as a Whole The construction sector comprises establishments primarily engaged in the construction of buildings or engineering projects (e.g., highways and utility systems). Establishments primarily engaged in the preparation of sites for new construction and establishments primarily engaged in subdividing land for sale as building sites also are included in this sector. Construction work done may include new work, additions, alterations, or maintenance and repairs. Activities of these establishments generally are managed at a fixed place of business, but they usually perform construction activities at multiple project sites. Production responsibilities for establishments in this sector are usually specified in (1) contracts with the owners of construction projects (prime contracts) or (2) contracts with other construction establishments (subcontracts). Establishments primarily engaged in contracts that include responsibility for all aspects of individual construction projects are commonly known as general contractors, but also may be known as design-builders, construction managers, turnkey contractors, or (in cases where two or more establishments jointly secure a general contract) joint-venture contractors. Construction managers that provide oversight and scheduling only (i.e., agency) as well as construction managers that are responsible for the entire project (i.e., at risk) are included as general contractor type establishments. Establishments of the "general contractor type" frequently arrange construction of separate parts of their projects through subcontracts with other construction establishments. Establishments primarily engaged in activities to produce a specific component (e.g., masonry, painting, and electrical work) of a construction project are commonly known as specialty trade contractors. Activities of specialty trade contractors are usually subcontracted from other construction establishments, but especially in remodeling and repair construction, the work may be done directly for the owner of the property. Establishments primarily engaged in activities to construct buildings to be sold on sites that they own are known as operative builders, but also may be known as speculative builders or merchant builders. Operative builders produce buildings in a manner similar to general contractors, but their production processes also include site acquisition and securing of financial backing. Operative builders are most often associated with the construction of residential buildings. Like general contractors, they may subcontract all or part of the actual construction work on their buildings. There are substantial differences in the types of equipment, work force skills, and other inputs required by establishments in this sector. To highlight these differences and variations in the underlying production functions, this sector is divided into three subsectors. Subsector 236, Construction of Buildings, comprises establishments of the general contractor type and operative builders involved in the construction of buildings. Subsector 237, Heavy and Civil Engineering Construction, comprises establishments involved in the construction of engineering projects. Subsector 238, Specialty Trade Contractors, comprises establishments engaged in specialty trade activities generally needed in the construction of all types of buildings. Force account construction is construction work performed by an enterprise primarily engaged in some business other than construction for its own account and use, using employees of the enterprise. This activity is not included in the construction sector unless the construction work performed is the primary activity of a separate establishment of the enterprise. The installation and the ongoing repair and maintenance of telecommunications and utility networks is excluded from construction when the establishments performing the work are not independent contractors. Although a growing proportion of this work is subcontracted to independent contractors in the Construction Sector, the operating units of telecommunications and utility companies performing this work are included with the telecommunications or utility activities.

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Showing 601–650 of 15348 bids that are currently: Active.

Denotes bidding opportunities that have been amended

California - US Due Date
Corporate: Paradise Behavioral Health Center - Mechanical
23 - Construction
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Sep. 17, 2026
Heating, Ventilation and Air Conditioning (HVAC) Services
23 - Construction
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Sep. 15, 2026
Corporate: Transworld Office Building Tenant Improvements - HVAC
23 - Construction
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Sep. 17, 2026
Corporate: Orosi High School Ag Building-Modular - HVAC
23 - Construction
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Sep. 17, 2026
Corporate: Natomas Reach B Pumping Plant 5 - HVAC
23 - Construction
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Sep. 28, 2026
Corporate: SAN JACINTO VALLEY ADVANCED WATER PURIFICATION FACILITY - HVAC
23 - Construction
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Oct. 20, 2026
Corporate: Biola Community Services District - Waste Water Treatment Plant Improvements Project - HVAC
23 - Construction
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Oct. 21, 2026
Corporate: 3127 TRANSWORLD OFFICE BUILDING TENANT IMPROVEMENTS - HVAC
23 - Construction
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Sep. 17, 2026
Replace Obsolete HVAC Controllers
23 - Construction
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Oct. 22, 2026
Boiler Replacement
23 - Construction
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Oct. 07, 2026
Corporate: Monterey Peninsula College - Marina Education Center Expansion - HVAC
23 - Construction
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Sep. 30, 2026
Corporate: Kenwood Fire Station Remodel - HVAC
23 - Construction
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Sep. 18, 2026
Corporate: Purified Water Replenishment San Jacinto Valley Advances Water Purification Facility - HVAC
23 - Construction
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Oct. 20, 2026
Mechanical - Treatment Facilities
23 - Construction
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Oct. 07, 2026
Corporate: Corporate: Construction Agreement \u2013 HVAC
23 - Construction
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Sep. 18, 2026
Transit Operations Building HVAC
23 - Construction
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Sep. 30, 2026
Corporate: American Union Elementary School-Music Building - HVAC
23 - Construction
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Sep. 24, 2026
Corporate: Inland Feeder\/San Bernardino Valley Municipal Water District Foothill Pump Station Intertie, Stage 1 - HVAC\/MECHANICAL
23 - Construction
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Sep. 29, 2026
Government is conducting market research to identify qualified commercial HVAC contractors
23 - Construction
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Oct. 08, 2026
Corporate: Acosta Operations Center - Heating, Ventilation, & Air Conditioning
23 - Construction
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Sep. 15, 2026
Corporate: American Union Elementary School, Music Building - HVAC
23 - Construction
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Sep. 24, 2026
Corporate: Wastewater System Expansion Project - HVAC\/MECHANICAL
23 - Construction
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Oct. 08, 2026
Corporate: FOWLER HIGH SCHOOL 16 CLASSROOM BLDG. - HVAC
23 - Construction
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Oct. 07, 2026
Job Order contract Mechanical Phase 13
23 - Construction
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Oct. 13, 2026
Miramar National Cemetery HVAC Maintenance Services
23 - Construction
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Sep. 16, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Duct Work and Vents
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - HVAC Installation
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - HVAC
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Duct and Vent Cleaning
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Fan Installation
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Mechanical Insulation
23 - Construction
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Sep. 22, 2026
Corporate: Fairgrove TK\/K Building & Campuswide Fire Alarm - Thermostats and Controls
23 - Construction
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Sep. 22, 2026
Corporate: Kashia Windsor Affordable Housing - HVAC
23 - Construction
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Sep. 14, 2026
Lift Station Upgrades PDR and Final Design of Electrical
23 - Construction
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Oct. 13, 2026
Corporate: Ramkabir Permanent Supportive Housing Project - HVAC
23 - Construction
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Sep. 23, 2026
Corporate: Secondary Treatment System Upgrades Project - HVAC
23 - Construction
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Oct. 08, 2026
Corporate: Sitework for New 2 Story Classroom Building - HVAC
23 - Construction
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Sep. 23, 2026
Corporate: Biola CSD Wastewater Treatment Plant Improvements - HVAC\/ MECHANICAL
23 - Construction
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Oct. 21, 2026
Corporate: Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility - HVAC
23 - Construction
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Oct. 20, 2026
Traffic Signal Designs for Two Intersections
23 - Construction
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Sep. 30, 2026
COUNTYWIDE PAVEMENT MANAGEMENT PROGRAM
23 - Construction
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Sep. 18, 2026
Corporate: Pier B On-Dock Rail Support Facility West Expansion and Pier B Street Realignment - CCTV inspection
23 - Construction
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Sep. 15, 2026
Telecommunications Facilities Entitlement Case Assessment
23 - Construction
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Sep. 14, 2026
College Park East Stormwater Infrastructure Design Services
23 - Construction
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Oct. 06, 2026
CONSTRUCTION MANAGEMENT SERVICES FOR WASTEWATER TREATMENT PLANT MAINTENANCE
23 - Construction
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Oct. 01, 2026
Corporate: Pier B on Dock Rail Support Facility West Expansion & Pier B Street Realignment Project - STORM WATER DISCHARGE TESTING SERVICES
23 - Construction
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Sep. 15, 2026
Complete Streets Project - Geotechnical Engineering Services
23 - Construction
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Oct. 01, 2026
Corporate: Roadway Excavation, HMA, RHMA, Cl 2 AB, Conc. & Temp Barrier, and Mobilization \u2013 WQMP
23 - Construction
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Sep. 17, 2026
Corporate: Water Line Replacement - Water quality control, chlorination and disinfection
23 - Construction
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Sep. 21, 2026
Pump Station and Force Main Improvements
23 - Construction
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Oct. 21, 2026

Showing 601–650 of 15348 bids that are currently: Active.