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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 1551–1600 of 3475 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| Maryland - US | Agency | Bid Type | Due Date | As PDF |
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On-Call Electrical 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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Electrical Distribution System Maintenance
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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Generator Preventive Maintenance & Cellular Monitoring System
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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REQUEST FOR QUOTES - RENTAL OF UPS FOR PHONE ROOM
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Oct. 02, 2026 |
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Solar Equipment Operations and Maintenance Services
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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Elevator Maintenance Service
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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Elevator Maintenance and Inspections
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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Elevator Renovation
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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Elevator & Lift Maintenance Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 28, 2026 |
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Corporate: MWWTP Effluent FM Surge & Transient DB - Plumbing Fixtures & Supplies
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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Metro Charles Center Dewatering Discharge Pipe Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 23, 2026 |
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Corporate: AutoZone Store# 6793 Gaithersburg, MD - Fire Sprinkler
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: AutoZone Store# 6793 Gaithersburg, MD - 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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On-Call Plumbing Services
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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Water Treatment Program
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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Corporate: Miller Truck Leasing Service Building - Fire Sprinkler
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 19, 2026 |
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Corporate: Miller Truck Leasing Service Building - Plumbing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 19, 2026 |
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Replacement of Water Heaters
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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On-Call Mechanical Services - Plumbing
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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Water Distribution Improvements Phase II
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 29, 2026 |
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| Massachusetts - US | Agency | Bid Type | Due Date | As PDF |
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Dishwasher Replacement - HVAC
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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Porter Memorial Library Addition & Renovation - HVAC
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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Air Source Heat Pump Conversion
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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Air Source Heat Pump Conversion - Heating \/ Ventilation \/ Air-Conditioning (HVAC)
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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WATER TREATMENT PLANT REPLACEMENT - HVAC
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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McGlynn School Walk-In Fridge\/ Freezer Compressor\/ Evaporator Replacement
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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Installation of Air Conditioning System
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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HVAC Upgrades to the Elevator Machine Rooms
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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HVAC Upgrades, Police Station\/Senior Center
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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On-Call HVAC Preventive Maintenance and Repair
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Fire Department Rooftop Unit Replacements
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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Repair Infrared Heaters
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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Trade Services Repairs and Maintenance - HVAC
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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On-Call Commercial Refrigeration Maintenance and Repairs
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Tradesperson Installation, Repair and Maintenance Services - Boilers
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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Tradesperson Installation, Repair and Maintenance Services - HVAC\/Sheet Metal
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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HVAC Improvements
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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Roderick Ireland Courthouse - Boiler Replacement
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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Southwick Gate Station Boiler 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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Chiller Plant Replacement
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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Library Repair, Structural Reinforcement and HVAC - HVAC
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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Wahconah Park Grandstand Reconstruction - HVAC
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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Southampton Commissary Facility Construction Services
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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Installation of Electrical Heaters at Frontage Road Garage
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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Envelope and Mechanical Systems at Franklin Field - HVAC
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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Construction of the Water Sewer Building - Heating, Ventilation and Air Conditioning
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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Hot Water and Furnace Replacement
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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HVAC Upgrade
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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HVAC Upgrade - Heating\/ventilating\/air-conditioning (HVAC)
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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On-Call HVAC
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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