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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 438 of 457 from the national official-source dataset.

131,786 records loaded

ONTARIO PLUMBING CO

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-0201396 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ONTARIO WATER PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3365848 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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ONYX MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-3724901 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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OPUS MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4846228 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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ORANGE HAT HOME REMODELLING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4428425 · BUILDING RENOVATOR

Last seen May 7, 2026

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ORPHANIDES, ANDREAS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3126024 · BUILDING RENOVATOR

Last seen May 7, 2026

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ORSINI DEVELOPMENT

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-4802055 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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OSMAKS

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3607913 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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OTA SHEET METAL SERVICES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5115105 · BUILDING RENOVATOR

Last seen May 7, 2026

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OTTO'S MASONRY

Municipal licence
Concrete MasonryToronto, ON
Concrete MasonryGeneral ContractorsRenovation Contractors

City of Toronto · #T85-3959154 · BUILDING RENOVATOR

Last seen May 7, 2026

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P & P PLUMBING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4542093 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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P C CONTROL SYSTEMS

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-2904522 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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P E G CORPORATION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3725106 · BUILDING RENOVATOR

Last seen May 7, 2026

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P J RENOVATIONS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3500327 · BUILDING RENOVATOR

Last seen May 7, 2026

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P T GENERAL CONTRACTOR INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4847056 · BUILDING RENOVATOR

Last seen May 7, 2026

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P-F ALUMINUM PRODUCTS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0228649 · BUILDING RENOVATOR

Last seen May 7, 2026

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P.H. ATLANTIC PLUMBING & HEATING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-0203543 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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PALLOTTA, PAUL

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-0236235 · BUILDING RENOVATOR

Last seen May 7, 2026 · 2 source records

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PALOMINO, NEAL LEOPOLD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-0000748 · PLUMBING CONTRACTOR

Last seen May 7, 2026

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PALOZZI, DENNIS M

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-4311784 · MASTER PLUMBER

Last seen May 7, 2026

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PANCO PLUMBING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5103310 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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PANDA WELDING

Municipal licence
General ContractorsToronto, ON
General ContractorsPavingPressure EquipmentWelding

City of Toronto · #T93-4873051 · DRIVEWAY PAVING CONTRACTOR

Last seen May 7, 2026

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PARISI, MICHAEL

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-4889490 · MASTER PLUMBER

Last seen May 7, 2026

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PARK LANE PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-0004534 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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PARKER, BRIAN J

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4540603 · BUILDING RENOVATOR

Last seen May 7, 2026

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PARRYS PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4187599 · PLUMBING CONTRACTOR

Last seen May 7, 2026

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PATER COMPANY

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3009823 · BUILDING RENOVATOR

Last seen May 7, 2026

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PATERSON, DAVID C

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0227453 · BUILDING RENOVATOR

Last seen May 7, 2026

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PAUL DAVIS SYSTEMS OF TORONTO

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4536180 · BUILDING RENOVATOR

Last seen May 7, 2026

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PAUL'S PLUMBING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3955110 · PLUMBING CONTRACTOR

Last seen May 7, 2026

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PAULO & JASON CONTRACTORS INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4310554 · BUILDING RENOVATOR

Last seen May 7, 2026

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PAUSE DESIGN

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5114089 · BUILDING RENOVATOR

Last seen May 7, 2026

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PAW CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4317215 · BUILDING RENOVATOR

Last seen May 7, 2026

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PAYNE, JOHN MICHAEL LUTHER

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4726524 · BUILDING RENOVATOR

Last seen May 7, 2026

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PCA PLUMBING

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-3839061 · MASTER PLUMBER

Last seen May 7, 2026

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PCI CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-5236031 · BUILDING RENOVATOR

Last seen May 7, 2026 · 3 source records

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PCYRENOVATION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4863681 · BUILDING RENOVATOR

Last seen May 7, 2026

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PEACE BIRDS ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4420678 · BUILDING RENOVATOR

Last seen May 7, 2026

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