Open Construction Tenders in Ontario — 335 Live Today
Data updated July 25, 2026
Ontario's construction stream is the deepest in the country: over a hundred open opportunities is typical, spanning York Region and Peel road programs, school builds from boards like the District School Board of Niagara, hospital renewal, and the federal work Defence Construction Canada and PSPC tender across the province.
Most municipal work posts to Bids&Tenders and Biddingo, provincial and broader-public-sector projects to MERX and the Ontario Tenders Portal, and federal projects to CanadaBuys — TenderScan folds them into the single list below, with Toronto's own market on its dedicated page.
Latest open tenders
EP916-270049 Emergency Storm Drainage System Reconstruction - Stage 2
Department of Public Works and Government Services (PSPC)
MERXCloses August 14, 2026RFT-2026-148 - Carling Heights Optimist Community Centre Roofing Replacement$
City of London
Bids&TendersCloses August 21, 2026Design and Construction Administration of Fire Station # 5
Township of Oro-Medonte
BiddingoCloses August 16, 2026LCBO Washroom & Breakroom Renovations – Package 5 -Five (5) LCBO Store Locations
BonfireCloses August 7, 2026EP916-270049 Emergency Storm Drainage System Reconstruction - Stage 2
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses August 14, 2026This Request for Tender (RFT) includes multiple State of Good Repair (SOGR) and capital construction projects at various City of Toronto facilities. The Work…
Corporate Real Estate Management
Toronto BidsCloses August 14, 2026C15-59-26 HW - Tender for Reconstruction of Scenic Drive from Chateau Court to Goulding Avenue$
City of Hamilton
Bids&TendersCloses August 10, 2026Q26-125 - Winter Maintenance Residential Sidewalk and Driveway Windrows
City of Kitchener
Bids&TendersCloses August 13, 2026RFP-2026-086 - Sidewalk and Boulevard Maintenance and Repair Services$
Town of Newmarket
Bids&TendersCloses August 14, 2026D2026-14 - Road reconstruction and rehabilitation on Lake Ridge Road (Regional Road 23) in the Township of Brock and Uxbridge
Region of Durham
Bids&TendersCloses August 18, 2026CSS-2026-11 - House Demolition
United Counties of Leeds and Grenville
Bids&TendersCloses August 20, 20262026-97 - Architectural Services for a new secondary school construction in Bowmanville
Conseil scolaire catholique MonAvenir
Bids&TendersCloses August 28, 2026PT-2026-PROB-284: Parking Lot Rehabilitation
Metrolinx
MERXCloses August 14, 2026RFPQ-1082-2026 - Prequalification of general contractors for a large remediation project at Courtice Water Pollution Control Plant in the Region of Durham
Region of Durham
Bids&TendersCloses August 19, 2026RFP 26-12 - RFP 26-12 CONSTRUCTION MANAGEMENT/CONSTRUCTION INSPECTION SERVICES FOR NEW OR UPGRADED TRAFFIC SIGNAL SYSTEM AT INTERSECTIONS, PHASE I Federal…
City of Camden
Bids&TendersCloses August 25, 2026
Closing within 7 days(86)
E.C. ROW SEWER SPRAY LINING REHABILITATION
City of Windsor
BiddingoCloses July 26, 2026This RFT is an invitation by the City to prospective Suppliers to submit bids for the performance of the Work for Culvert Removal of North Queen Street (Site…
Engineering & Construction Services
Toronto BidsCloses July 27, 2026FB#910 - Horse Ball Stable Concrete Repair
Metro Richelieu
MERXCloses July 27, 2026The purpose of the Davisville Subway Trench Park Feasibility Study is to inform and support City staff and City Council decision-making regarding the potential…
Parks, Forestry & Recreation
Toronto BidsCloses July 27, 2026Request for Tenders (RFT) for Culvert Removal of North Queen Street (Site ID660), and Culvert Replacement of Royalcrest Road over Albion Creek (Site ID676)
City of Toronto
MERXCloses July 27, 2026
More tenders in Ontario
W6890-260088 - Janitorial Services
Department of Public Works and Government Services (PSPC)
MERXCloses September 8, 2026EP916-270049 Emergency Storm Drainage System Reconstruction - Stage 2
Department of Public Works and Government Services (PSPC)
MERXCloses August 14, 2026Provision of Cable Installation Services for Canada’s Diplomatic and Consular Missions
Department of Foreign Affairs, Trade and Development (GAC)
MERXCloses July 30, 2027R807.1-Labelling and Posting Literature Review
Canadian Nuclear Safety Commission (CNSC)
MERXCloses September 17, 2026Mercury Program Project Support
National Research Council of Canada (NRC)
MERXCloses August 12, 2026
Most active buyers
- Department of Public Works and Government Services (PSPC)20 open tenders
- City of Toronto16 open tenders
- Engineering & Construction Services12 open tenders
- Defence Construction Canada - Ontario Region9 open tenders
- Region of Peel9 open tenders
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