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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 436 of 457 from the national official-source dataset.

131,786 records loaded

NELCO MECHANICAL LTD

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-5105217 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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NESSA CONTRACTING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-3958132 · DRAIN CONTRACTOR

Last seen May 7, 2026

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NETWORK MECHANICAL INC

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4645407 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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NEW CANADIAN DRAIN AND PLUMBING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-4307783 · BUILDING RENOVATOR

Last seen May 7, 2026 · 3 source records

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NEW CONTINENT PLUMBING & HEATING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-4296643 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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NEW DEPTHS INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbersRenovation Contractors

City of Toronto · #T85-4705989 · BUILDING RENOVATOR

Last seen May 7, 2026 · 3 source records

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NEW DESIGN RENOVATIONS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4730697 · BUILDING RENOVATOR

Last seen May 7, 2026

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NEW GENERATION GTA PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5140428 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NEW IMAGE CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0240540 · BUILDING RENOVATOR

Last seen May 7, 2026

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NEW LINE PLUMBING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5007644 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NEW PARK CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3842882 · BUILDING RENOVATOR

Last seen May 7, 2026

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NEW POWER RENOVATIONS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5201574 · BUILDING RENOVATOR

Last seen May 7, 2026

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NEW PROJECT DRAIN COMPANY

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4948706 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NEW TECH MAIN INC

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-4540068 · MASTER PLUMBER

Last seen May 7, 2026

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NEW WATER PLUMBING

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-3126040 · MASTER PLUMBER

Last seen May 7, 2026 · 3 source records

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NEWBRIDGE PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5030431 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NEWLAND BAYIZGA CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4202954 · BUILDING RENOVATOR

Last seen May 7, 2026

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NEWSON, JERRY

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-3103477 · MASTER PLUMBER

Last seen May 7, 2026

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NEXT MECHANICAL GROUP LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-4993169 · PLUMBING CONTRACTOR

Last seen May 7, 2026

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NIAGARA DRAINS

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-4310979 · DRAIN CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NIAGARA GENERAL CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4312191 · BUILDING RENOVATOR

Last seen May 7, 2026

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NIAGARA WATER SERVICES

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4063035 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NICE HOME SOLUTIONS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4063455 · BUILDING RENOVATOR

Last seen May 7, 2026

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NICETY CAICHUN ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4306776 · BUILDING RENOVATOR

Last seen May 7, 2026

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NICKEL CITY PROPERTIES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4646388 · BUILDING RENOVATOR

Last seen May 7, 2026

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NIGHT STAR ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-3845456 · BUILDING RENOVATOR

Last seen May 7, 2026

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NIKSIC, MILAN

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-0005694 · MASTER PLUMBER

Last seen May 7, 2026

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NINO CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3954485 · BUILDING RENOVATOR

Last seen May 7, 2026

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NJY METAL ROOF

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-5208724 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORD WINDOWS & DOORS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4647933 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORDETT'S PLUMBING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5009112 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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NOREX CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4429040 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORMAN INTERIORS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3845489 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORTEX ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-3834049 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORTH 5 CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4948142 · BUILDING RENOVATOR

Last seen May 7, 2026

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NORTH END MECHANICAL LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-3834807 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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