Ontario tenders · Mechanical (HVAC & plumbing)
Open mechanical (hvac & plumbing) tenders in Ontario
25 open mechanical (hvac & plumbing) construction tenders in Ontario right now, scanned daily from the official procurement portals and tagged by trade.
Updated June 6, 2026.
Open now
25
New in last 30 days
25
Closing soonest
- University of OttawaOntarioCloses Jun 8, 2026via MERXMechanicalRoofingView on official portal →
- Ontario Shared ServicesOntarioCloses Jun 8, 2026via MERXMechanicalView on official portal →
- BGIS - PWGSC RP1ON - 16 - Hastings, ONCloses Jun 9, 2026via MERXMechanicalView on official portal →
Northeastern Catholic DSB R282 St Patrick School Basement Ventilation and Heating Upgrade
4 days leftNortheastern Catholic District School BoardTimmins , OntarioCloses Jun 9, 2026via BiddingoMechanicalView on official portal →- Toronto, ONCloses Jun 10, 2026via City of TorontoPavingConcreteBridgeSanitaryCulvertView on official portal →
- Laurentian UniversityNortheast, ONCloses Jun 10, 2026via MERXMechanicalView on official portal →
Third Party Chiller Assessment
11 days leftBGIS - PWGSC RP1All of National Capital Region, ONCloses Jun 17, 2026via MERXMechanicalView on official portal →HVAC and Electrical Home Upgrades
13 days leftOntario First Nations Technical Services CorporationOttawa, ONCloses Jun 19, 2026via MERXMechanicalElectricalView on official portal →ELEVATOR MAINTENANCE AND SERVICE
13 days leftCornwall Community HospitalOttawa, ONCloses Jun 19, 2026via MERXMechanicalView on official portal →- University Health NetworkToronto, OntarioCloses Jun 22, 2026via BiddingoMechanicalView on official portal →
RFQ Children Services Plumbing Services
20 days leftCity of TorontoOntarioCloses Jun 26, 2026via MERXMechanicalView on official portal →- Toronto Transit Commission - PCM OperatingToronto, ONCloses Jun 26, 2026via MERXMechanicalElectricalView on official portal →
RFQ 5627454149 — Children's Services
20 days leftToronto, ONCloses Jun 26, 2026via City of TorontoMechanicalView on official portal →Selective Rooftop HVAC Replacements
20 days leftNipissing UniversityNortheast, ONCloses Jun 26, 2026via MERXMechanicalView on official portal →Plumbing Contractors
23 days leftMcMaster UniversityHamilton-Niagara Peninsula, ONCloses Jun 29, 2026via MERXMechanicalView on official portal →- St. Lawrence CollegeOntarioCloses Jun 29, 2026via MERXMechanicalView on official portal →
MUA Replacements - Manitoulin-Sudbury DSB
23 days leftHousing Services CorporationOntarioCloses Jun 29, 2026via MERXMechanicalView on official portal →CW28338 - TGHC Elevator Modernization
24 days leftMohawk MedbuyBurlington, OntarioCloses Jun 29, 2026via BiddingoMechanicalView on official portal →MUA Replacements - Manitoulin-Sudbury DSB
24 days leftHousing Services Corporation (HSC)Toronto, OntarioCloses Jun 29, 2026via BiddingoMechanicalView on official portal →- Mohawk MedbuyBurlington, OntarioCloses Jun 29, 2026via BiddingoMechanicalView on official portal →
- Ontario Shared ServicesOntarioCloses Jun 30, 2026via MERXMechanicalView on official portal →
- University of Toronto MississaugaToronto, ONCloses Jun 30, 2026via MERXMechanicalView on official portal →
- Toronto, ONCloses Jul 7, 2026via City of TorontoMechanicalView on official portal →
RFP 5660182540 — Parks, Forestry & Recreation
107 days leftToronto, ONCloses Sep 21, 2026via City of TorontoCivilBridgeMechanicalElectricalStormView on official portal →Mechanical Contractor Services QRT Source List
1070 days leftDefence Construction Canada - Ontario RegionKingston-Pembroke, ONCloses May 11, 2029via MERXMechanicalView on official portal →
Showing the 25 soonest-closing of 25 open mechanical (hvac & plumbing) tenders. Start free to see them all, scored to your profile →
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Frequently asked questions
- Where do Ontario mechanical (hvac & plumbing) tenders come from?
- Public procurement portals — BC Bid, the Alberta Purchasing Connection, SaskTenders, MERX, CanadaBuys, and municipal sites. Cornerstone tags each posting by trade, so this page shows the Ontario work tagged mechanical (hvac & plumbing). Each listing links to the official source.
- Is it free to see open mechanical (hvac & plumbing) tenders in Ontario?
- Yes — browsing is free and needs no account. A free Cornerstone account scores these tenders to your trade, geography, and bonding capacity, and drafts a compliance-aware proposal for the ones you pursue.
- How is a tender classified as mechanical (hvac & plumbing)?
- Cornerstone reads each posting's scope from its title and description and tags the trades involved. This list is the Ontario tenders tagged mechanical (hvac & plumbing); many tenders span several trades, so always confirm the full scope in the official documents.
Listings aggregated from public procurement portals; each links to its official source. Trade tags are Cornerstone’s classification of each posting’s scope — always confirm the full scope in the official tender documents. General information, not procurement advice.