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Ontario Contractors

Search 22,802 official-source contractor records in Ontario. Filter by trade, source type, and direct contact availability.

Browse Ontario by city

Top city pages from the official-source dataset.

Toronto4,454Mississauga1,435Hamilton875Brampton586Markham574Concord510Richmond hill471Ottawa461London449Woodbridge361north york358vaughan340Burlington302Oakville272Scarborough257Etobicoke246Kitchener205Newmarket178Windsor173Cambridge170Thornhill166Pickering163Barrie161Guelph150Oshawa145Aurora136Whitby129Maple128Stoney Creek127Kingston123Ajax114St Catharines114Brantford112Waterloo110Bolton105Stouffville104

22,802 matching contractors

Showing page 378 of 457 from the national official-source dataset.

131,786 records loaded

BW CONTRACTING

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #27 000152 · Contractor / Building Repair

Last seen May 15, 2026

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CAMAZZOLA RENOVATORS

Municipal licence
General ContractorsHamilton, ON
General ContractorsRenovation Contractors

City of Hamilton · #14 279014 · Contractor / Building Repair

Last seen May 15, 2026

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CAMPBELL GLASS & MIRROR LTD.

Municipal licence
General ContractorsHamilton, ON
General ContractorsWindow & Door Contractors

City of Hamilton · #14 280852 · Contractor / Building Repair

Last seen May 15, 2026

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CANAAN MEDY RENOVATION INC

Municipal licence
General ContractorsHamilton, ON
General ContractorsRenovation Contractors

City of Hamilton · #17 292360 · Contractor / Building Repair

Last seen May 15, 2026

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CANADA WATERPROOFERS INC

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbersRoofers

City of Hamilton · #23 301959 · Contractor / Plumbing

Last seen May 15, 2026

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CAPELA'S ROOFING INC.

Municipal licence
General ContractorsHamilton, ON
General ContractorsRoofers

City of Hamilton · #15 115777 · Contractor / Building Repair

Last seen May 15, 2026

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CARDI CONSTRUCTION LIMITED

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #18 293542 · Contractor / Drain Repair

Last seen May 15, 2026

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CARMICHAEL ENGINEERING LTD.

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVAC

City of Hamilton · #14 276261 · Contractor / Heating, Ventilation and Air Conditionin

Last seen May 15, 2026

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CATALINA EXCAVATING

Municipal licence
Excavation ContractorsHamilton, ON
Excavation ContractorsGeneral ContractorsPlumbers

City of Hamilton · #15 116245 · Contractor / Drain Repair

Last seen May 15, 2026

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CATLIN INC

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #19 296989 · Contractor / Building Repair

Last seen May 15, 2026

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CAYMAN MANUFACTURING INC.

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #14 172334 · Contractor / Building Repair

Last seen May 15, 2026

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CHADWICK'S AND HACK'S

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVAC

City of Hamilton · #15 288260 · Contractor / Heating, Ventilation and Air Conditionin

Last seen May 15, 2026

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CHERMARK RENOVATIONS

Municipal licence
General ContractorsHamilton, ON
General ContractorsRenovation Contractors

City of Hamilton · #14 280189 · Contractor / Building Repair

Last seen May 15, 2026

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CHRISAN ENTERPRISES LTD

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #15 174437 · Contractor / Drain Repair

Last seen May 15, 2026 · 2 source records

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CLARE MOORE REFRIGERATION

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVAC

City of Hamilton · #14 215116 · Contractor / Heating, Ventilation and Air Conditionin

Last seen May 15, 2026

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CLASSIC FIRE & LIFE SAFETY INC

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #14 283219 · Contractor / Sprinkler and Fire Protection Installer

Last seen May 15, 2026

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CLAYWOODS HOMES INC.

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #18 294458 · Contractor / Building Repair

Last seen May 15, 2026

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COMPASS MECHANICAL GROUP LTD

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVAC

City of Hamilton · #17 293176 · Contractor / Heating, Ventilation and Air Conditionin

Last seen May 15, 2026

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CONA CONTRACTING INC

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #14 275067 · Contractor / Drain Repair

Last seen May 15, 2026

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CORE EARTHWORKS LTD

Municipal licence
Excavation ContractorsHamilton, ON
Excavation ContractorsGeneral ContractorsPlumbers

City of Hamilton · #15 249658 · Contractor / Drain Repair

Last seen May 15, 2026

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COVE MECHANICAL INC.

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVACPlumbers

City of Hamilton · #15 279750 · Contractor / Plumbing

Last seen May 15, 2026

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CPB CARPENTRY

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #21 298621 · Contractor / Building Repair

Last seen May 15, 2026

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CULLITON INC

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #14 276598 · Contractor / Plumbing

Last seen May 15, 2026

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CUSTOM CONSTRUCTION

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #27 000020 · Contractor / Building Repair

Last seen May 15, 2026

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CUSTOM HOME IMPROVEMENTS

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #14 274843 · Contractor / Building Repair

Last seen May 15, 2026

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D.A.D HVAC

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVAC

City of Hamilton · #23 303714 · Contractor / Heating, Ventilation and Air Conditionin

Last seen May 15, 2026

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D.R. MASONRY LTD.

Municipal licence
Concrete ContractorsHamilton, ON
Concrete ContractorsGeneral Contractors

City of Hamilton · #14 278461 · Contractor / Building Repair

Last seen May 15, 2026

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DAN PARR'S EXCAVATING

Municipal licence
Excavation ContractorsHamilton, ON
Excavation ContractorsGeneral ContractorsPlumbers

City of Hamilton · #14 280070 · Contractor / Drain Repair

Last seen May 15, 2026

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DANARA CONSTRUCTION INC

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #15 287266 · Contractor / Building Repair

Last seen May 15, 2026

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DASA MECHANICAL INT LTD

Municipal licence
General ContractorsHamilton, ON
General ContractorsHVACPlumbers

City of Hamilton · #15 282682 · Contractor / Plumbing

Last seen May 15, 2026

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DAVCON PLUMBING INC.

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #16 117471 · Contractor / Plumbing

Last seen May 15, 2026

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DAVE STOKOE PLUMBING

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #14 276133 · Contractor / Plumbing

Last seen May 15, 2026

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DAVEY KOSZALKA HOMES INC

Municipal licence
General ContractorsHamilton, ON
General Contractors

City of Hamilton · #23 302140 · Contractor / Building Repair

Last seen May 15, 2026

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DAVID BOWERS PLUMBING

Municipal licence
General ContractorsHamilton, ON
General ContractorsPlumbers

City of Hamilton · #14 159919 · Contractor / Plumbing

Last seen May 15, 2026

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