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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 433 of 457 from the national official-source dataset.

131,786 records loaded

MASTER QUALITY ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4069344 · BUILDING RENOVATOR

Last seen May 7, 2026

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MASTER'S PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3833551 · PLUMBING CONTRACTOR

Last seen May 7, 2026

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MATRIX AND PLANET

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4533246 · BUILDING RENOVATOR

Last seen May 7, 2026

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MATRIX SHEETMETAL LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-0004050 · HEATING CONTRACTOR

Last seen May 7, 2026

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MATTHEWS EAVESTROUGH SERVICES

Municipal licence
Building EnvelopeToronto, ON
Building EnvelopeGeneral ContractorsRenovation Contractors

City of Toronto · #T85-3606215 · BUILDING RENOVATOR

Last seen May 7, 2026

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MATTHEWS ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4430486 · BUILDING RENOVATOR

Last seen May 7, 2026

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MATTUCCI, JIMMY

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-0209272 · DRAIN CONTRACTOR

Last seen May 7, 2026

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MAUTI, DENNY

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-3114689 · MASTER PLUMBER

Last seen May 7, 2026

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MAUTNER, KARL

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-4935198 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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MAX FORCE PLUMBING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5200440 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MAXIMUM GENERAL CONTRACTING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-4713063 · BUILDING RENOVATOR

Last seen May 7, 2026 · 3 source records

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MAXIMUS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4886634 · BUILDING RENOVATOR

Last seen May 7, 2026

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MB RENO'S

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4537700 · BUILDING RENOVATOR

Last seen May 7, 2026

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MBC CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5010751 · BUILDING RENOVATOR

Last seen May 7, 2026

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MCBAIN, GRANT ROBERT

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3123104 · BUILDING RENOVATOR

Last seen May 7, 2026

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MCCAFFREY, DANIEL PATRICK

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5204571 · BUILDING RENOVATOR

Last seen May 7, 2026

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MCDONOUGH ENTERPRISES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4885921 · BUILDING RENOVATOR

Last seen May 7, 2026

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MCDOWELL, STUART EDMUND

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-4543453 · DRAIN CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MCKINNON HEATING COOLING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-4420564 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MCL PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4973519 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MCLUSKIE, ALAN JAMES

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4748512 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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MCMANN CONSTRUCTION GROUP

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4177748 · BUILDING RENOVATOR

Last seen May 7, 2026

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MECHKOV, NIKOLAI LVOVITCH

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4314677 · BUILDING RENOVATOR

Last seen May 7, 2026

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MEDIC AIR

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-3242508 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MEHMET CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4290985 · BUILDING RENOVATOR

Last seen May 7, 2026

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MELDAZY CONSTRUCTION LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0021908 · BUILDING RENOVATOR

Last seen May 7, 2026

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MELE PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5104429 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MELI, DINO M

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-3720855 · MASTER PLUMBER

Last seen May 7, 2026

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MELO RENOVATIONS INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4533248 · BUILDING RENOVATOR

Last seen May 7, 2026

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MELVILLE PLUMBING COMPANY

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5115142 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MEMME, CLAUDIO

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-0000643 · DRAIN CONTRACTOR

Last seen May 7, 2026

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MEMUSHI, ELDIS

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5103919 · MASTER PLUMBER

Last seen May 7, 2026

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MEN AT WORK DESIGN BUILD LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-3356812 · BUILDING RENOVATOR

Last seen May 7, 2026 · 3 source records

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MENECOLA DOORS & WINDOWS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4922435 · BUILDING RENOVATOR

Last seen May 7, 2026

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MERKLINGER, MICHAEL CHARLES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0110933 · BUILDING RENOVATOR

Last seen May 7, 2026

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MESSENIA CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4417295 · BUILDING RENOVATOR

Last seen May 7, 2026

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