Ontario tenders · Mechanical (HVAC & plumbing)

Open mechanical (hvac & plumbing) tenders in Ontario

37 open mechanical (hvac & plumbing) construction tenders in Ontario right now, scanned daily from the official procurement portals and tagged by trade.

Updated August 18, 2026.

Open now

37

New in last 30 days

32

Closing soonest

Showing the 37 soonest-closing of 37 open mechanical (hvac & plumbing) tenders. Start free to see them all, scored to your profile →

See only the mechanical (hvac & plumbing) work you can win.

Start free to have every Ontario mechanical (hvac & plumbing) tender scored to your trade, geography, and bonding capacity — and to draft a compliance-aware proposal in minutes.

Start freeSee pricing

Open mechanical (hvac & plumbing) tenders in other provinces

Alberta27Quebec26British Columbia11

Keep exploring

Newsletter

New Ontario mechanical (hvac & plumbing) tenders by email

A periodic roundup of new mechanical (hvac & plumbing) tenders in Ontario. Free, no spam, unsubscribe anytime.

Frequently asked questions

Where do Ontario mechanical (hvac & plumbing) tenders come from?
Public procurement portals — CanadaBuys, MERX, Biddingo, the Alberta Purchasing Connection, SaskTenders, and municipal sites (BC tenders arrive via MERX and Biddingo). 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.