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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 423 of 457 from the national official-source dataset.

131,786 records loaded

GREAT WEST LANDSCAPING

Municipal licence
General ContractorsToronto, ON
General ContractorsLandscapingRenovation Contractors

City of Toronto · #T85-4316836 · BUILDING RENOVATOR

Last seen May 7, 2026

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GREATVIEW CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsPaving

City of Toronto · #T93-5237608 · DRIVEWAY PAVING CONTRACTOR

Last seen May 7, 2026

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GREBOO, DAYVID

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5102584 · MASTER PLUMBER

Last seen May 7, 2026

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GRECO, EDWARD JOHN

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-0002433 · DRAIN CONTRACTOR

Last seen May 7, 2026

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GREECIA CONSTRUCTION LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0230350 · BUILDING RENOVATOR

Last seen May 7, 2026

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GREEN LEAF ROOFING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-4862446 · BUILDING RENOVATOR

Last seen May 7, 2026

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GREENCITY PLUMBER

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-0209308 · MASTER PLUMBER

Last seen May 7, 2026

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GREENING HOMES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3948086 · BUILDING RENOVATOR

Last seen May 7, 2026

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GREENWOOD HOME IMPROVEMENT

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0019316 · BUILDING RENOVATOR

Last seen May 7, 2026

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GRIECO CARPENTRY LTD

Municipal licence
CarpentryToronto, ON
CarpentryGeneral ContractorsRenovation Contractors

City of Toronto · #T85-4312911 · BUILDING RENOVATOR

Last seen May 7, 2026

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GRIFFIN MECHANICAL SERVICES 747

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-5211383 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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GRIFFIN, JOSHUA A

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5200463 · MASTER PLUMBER

Last seen May 7, 2026

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GRIZZLY PLUMBING AND HEATING INC

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-4739649 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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GROUNDWORKS CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T95-3726877 · MASTER PLUMBER

Last seen May 7, 2026

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GS1 INDUSTRIES

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5027805 · MASTER PLUMBER

Last seen May 7, 2026

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GT PHILLIPS MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4748843 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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GTA WINDOWS AND DOORS

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3370534 · BUILDING RENOVATOR

Last seen May 7, 2026

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GUADAGNOLI, DONATO

Municipal licence
General ContractorsToronto, ON
General ContractorsHVAC

City of Toronto · #T91-0003201 · HEATING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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GUASTAVINO, CLAIRE

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-5231639 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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GUNBAR MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4706847 · MASTER PLUMBER

Last seen May 7, 2026

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GUTTER FORCE

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5113090 · BUILDING RENOVATOR

Last seen May 7, 2026

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GUXO, ILDI

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5200743 · MASTER PLUMBER

Last seen May 7, 2026

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GYETVAN, JOSEPH JR

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-3593819 · DRAIN CONTRACTOR

Last seen May 7, 2026

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H N CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4064158 · BUILDING RENOVATOR

Last seen May 7, 2026

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H S K PLUMBING AND HEATING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-4297044 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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H.M.S PLUMBING & MECHANICAL

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-4297115 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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H2O SERVICES

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-4670738 · DRAIN CONTRACTOR

Last seen May 7, 2026 · 2 source records

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HAGER INDUSTRIES

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-0013516 · MASTER PLUMBER

Last seen May 7, 2026

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HALLSY MECHANICAL SERVICES

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T92-5116575 · PLUMBING & HEATING CONTRACTOR

Last seen May 7, 2026 · 3 source records

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HALYCH ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-3837403 · BUILDING RENOVATOR

Last seen May 7, 2026

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HAMATI ROOFING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation ContractorsRoofers

City of Toronto · #T85-5201183 · BUILDING RENOVATOR

Last seen May 7, 2026

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HAMMERS IN MOTION LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4063103 · BUILDING RENOVATOR

Last seen May 7, 2026

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