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This industry group comprises establishments primarily engaged in installing or servicing equipment that forms part of a building mechanical system (e.g., electricity, water, heating, and cooling). The work performed may include new work, additions, alterations, maintenance, and repairs. Contractors installing specialized building equipment, such as elevators, escalators, service station equipment, and central vacuum cleaning systems are also included.

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Showing 851–900 of 2668 bids that are currently: Active.

Denotes bidding opportunities that have been amended

Illinois - US Due Date
HVAC IMPROVEMENTS AT EGAN AND KIRIE WRP
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026
Corporate: La Salle 2024 Water Systems Improvement Project - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Interior Renovations - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
Corporate: New Bolingbrook Animal Care and Control Center - HVAC U
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: New Bolingbrook Animal Care and Control Center - HVAC - N
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: New Bolingbrook Animal Care and Control Center - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: Battery E Activated Sludge Facility OWRP - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 24, 2026
Corporate: City of Ottawa Contract B \u2013 New Fox River Wastewater Treatment Plant - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: City of Ottawa Contract B \u2013 New Fox River Wastewater Treatment Plant - Mechanical
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: City of Byron - WWTP Improvements Project - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026
Corporate: Contract B \u2013 New Fox River Wastewater Treatment Plant - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Multi-Site HVAC Upgrades
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 06, 2026
Corporate: MWRD HVAC Improvements at Egan and Kirie Water Reclamation Plants - Mechanical
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026
Corporate: City of Ottawa_Contract B_New Fox River WTP - Heating, Vent & Air-Cond
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
FCI Pekin - Replace Boilers & Controls
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 09, 2026
D41 SUMMER IMPROVEMENTS - MEP WORK
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 14, 2026
Corporate: CITY OF OTTAWA CONTRACT A - COLLECTION SYSTEM IMPROVEMENTS - Mechanical
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: WWTP Improvements - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026
Corporate: Downtown Hammond Train Station - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
Corporate: Five Points Well Water Filter Plant - Heating, Vent & Air-Cond
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 15, 2026
Corporate: Bloomington-Normal WRD_Plant 3 Headworks Improvements - Heating, Vent & Air-Cond
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 17, 2026
Niedringhaus School HVAC Replacement Project
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 20, 2026
Brian Dominick Early Childhood Center Construction - Mechanical
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
BATTERY E ACTIVATED SLUDGE FACILITY
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026
Beef And Sheep Facility Manure Holding Lagoon
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
National Quantum Facility & Quantum Works
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 09, 2026
Corporate: LEAD SERVICE LINE REPLACEMENT PROJECT STAGE III - Paving restoration
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 07, 2026
Healthcare Job Order Contracting - General Work
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 22, 2026
Phase II Capital Improvements
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Dec. 23, 2025
Alcott ES-Peirce ES - Capital CIP
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Dec. 23, 2025
ANIMAL CARE AND CONTROL CENTER
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 06, 2026
Corporate: La Salle 2024 Water Systems Improvement Project - Thermal & Moisture Protection
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: La Salle 2024 Water Systems Improvement Project - Openings
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: La Salle 2024 Water Systems Improvement Project - Process Interconnections
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Ames Library Enclosure Repairs
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 16, 2026
Interior Renovations - General Trades
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
Interior Renovations - Acoustical Ceilings
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
Corporate: UPPER DES PLAINES INTERCEPTING SEWER 11D REHABILITATION - Manhole\/Structure Rehab
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 08, 2026
Service Center Renovation
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 06, 2026
Corporate: New Bolingbrook Animal Care and Control Center - Thermal and Moisture Protection
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: New Bolingbrook Animal Care and Control Center - Spray Foam Insulation
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: New Bolingbrook Animal Care and Control Center - Insulation Contractors
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: New Bolingbrook Animal Care and Control Center - Fireproofing
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 02, 2026
Corporate: Battery E Activated Sludge Facility OWRP - Building Insulation
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 24, 2026
Corporate: Battery E Activated Sludge Facility OWRP - Fireproofing
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 24, 2026
Fire Department Training Facility
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 16, 2026
HOWARD JOHNSTON PLAZA RENOVATION
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 14, 2026
Corporate: City of Ottawa Contract B \u2013 New Fox River Wastewater Treatment Plant - Building Construction
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: Contract B \u2013 New Fox River Wastewater Treatment Plant - Openings
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 13, 2026
Corporate: MWRD HVAC Improvements at Egan and Kirie Water Reclamation Plants - Site Construction
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jan. 27, 2026

Showing 851–900 of 2668 bids that are currently: Active.