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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 403 of 457 from the national official-source dataset.

131,786 records loaded

ACT FAST WATERPROOFING CORP

Municipal licence
Building EnvelopeToronto, ON
Building EnvelopeGeneral ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4423126 · BUILDING RENOVATOR

Last seen May 7, 2026

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ACTION PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4538953 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ACTUAL PLUMBING

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-3106334 · MASTER PLUMBER

Last seen May 7, 2026

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ACUTRON MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-5111084 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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ADAIR ROOFING CO LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-3355614 · BUILDING RENOVATOR

Last seen May 7, 2026

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ADAMSON, DONALD G

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-0005223 · MASTER PLUMBER

Last seen May 7, 2026

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ADAPT-A-HOME

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3481463 · BUILDING RENOVATOR

Last seen May 7, 2026

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ADCO BUILDING RESTORATION LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5011025 · BUILDING RENOVATOR

Last seen May 7, 2026

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ADVANCED MECHANICAL GROUP

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-4883110 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ADVANCED PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3839218 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ADVANTAGE AIRTECH

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-4177375 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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ADVANTAGE PLUMBING AND DRAINS

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3006720 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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AERO ROOFING INC.

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-0213306 · BUILDING RENOVATOR

Last seen May 7, 2026

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AF PLUMBING & DRAIN

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4831438 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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AFC HEATING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-4961181 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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AFFORDABLE PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4178101 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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AGF WOODWORKING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4651223 · BUILDING RENOVATOR

Last seen May 7, 2026

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AGINCOURT ROOFING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-0000324 · BUILDING RENOVATOR

Last seen May 7, 2026

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AH HENRY CONSTRUCTION LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4905762 · BUILDING RENOVATOR

Last seen May 7, 2026

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AI PRO ROOFING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4647669 · BUILDING RENOVATOR

Last seen May 7, 2026

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AINSWORTH

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-5235952 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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AIR PATROL NORTH

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-4315496 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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AIR TREATMENT SYSTEMS

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-0226389 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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AIRLIFT INC

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-0008241 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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AIRWAY SYSTEMS

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-3472659 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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AJ FOX CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5226703 · BUILDING RENOVATOR

Last seen May 7, 2026

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AKAN CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4845408 · BUILDING RENOVATOR

Last seen May 7, 2026

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ALBA WATERTECH

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4294479 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ALBOINO, ANTONIO IVO

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-0229342 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ALBRO ELECTRIC

Municipal licence
ElectriciansToronto, ON
ElectriciansGeneral ContractorsRenovation Contractors

City of Toronto · #T85-4878936 · BUILDING RENOVATOR

Last seen May 7, 2026

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ALERT AIR SYSTEMS

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-4538841 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ALEX MAGEE & SONS LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-0001724 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026

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ALEX PAVING & CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsPaving

City of Toronto · #T93-4315261 · DRIVEWAY PAVING CONTRACTOR

Last seen May 7, 2026

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