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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 358 of 457 from the national official-source dataset.

131,786 records loaded

Hause Built Inc.

Regulated licence
General ContractorsYarker, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B60255 · Licensed builder/vendor

Last seen May 15, 2026

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Irondek Builds Inc.

Regulated licence
General ContractorsYarker, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B60764 · Licensed builder/vendor

Last seen May 15, 2026

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Dant Homes

Regulated licence
General ContractorsYork, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B62422 · Licensed builder/vendor

Last seen May 15, 2026

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Everwise Homes Inc.

Regulated licence
General ContractorsYork, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B61422 · Licensed builder/vendor

Last seen May 15, 2026

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Men At Work

Regulated licence
General ContractorsYork, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B34968 · Licensed builder/vendor

Last seen May 15, 2026

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Northern Summit Contracting Inc.

Regulated licence
General ContractorsYork, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B62906 · Licensed builder/vendor

Last seen May 15, 2026

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Rinaldo Homes

Regulated licence
General ContractorsYork, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B42839 · Licensed builder/vendor

Last seen May 15, 2026

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M. J. Holman Holdings

Regulated licence
General ContractorsZurich, ON
General ContractorsResidential Builders

Home Construction Regulatory Authority · #B39325 · Licensed builder/vendor

Last seen May 15, 2026

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2SCALE CONTRACTING INC

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:2SCALE CONTRACTING INC:4168572334 · Building Renovator - General

Last seen May 7, 2026

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A & J ALUMINUM & GLASS

Municipal licence
Building EnvelopeMississauga, ON
Building EnvelopeGeneral ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:A & J ALUMINUM & GLASS:9052386677 · Building Renovator - General

Last seen May 7, 2026

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A JOSEPH MECHANICAL LIMITED

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:A JOSEPH MECHANICAL LIMITED:9053327710 · Contractor - Heating Contractor

Last seen May 7, 2026

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A JOSEPH MECHANICAL LIMITED

Municipal licence
HVACMississauga, ON
HVAC

City of Mississauga · #Trades Master - Heater:A JOSEPH MECHANICAL LIMITED:9056893320 · Trades Master - Heater

Last seen May 7, 2026

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A.M.T MECHANICAL LTD

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:A.M.T MECHANICAL LTD:9057389504 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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A1 AIR CONDITIONING & HEATING

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:A1 AIR CONDITIONING & HEATING:9058442949 · Contractor - Heating Contractor

Last seen May 7, 2026 · 2 source records

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AAA AIR CONDITIONING INC

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:AAA AIR CONDITIONING INC:5197479051 · Contractor - Heating Contractor

Last seen May 7, 2026

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AAA AIR CONDITIONING INC

Municipal licence
HVACMississauga, ON
HVAC

City of Mississauga · #Trades Master - Heater:AAA AIR CONDITIONING INC:5196385910 · Trades Master - Heater

Last seen May 7, 2026

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AAA ROOFMASTERS

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation ContractorsRoofers

City of Mississauga · #Building Renovator - Specialized:AAA ROOFMASTERS:9059491553 · Building Renovator - Specialized

Last seen May 7, 2026

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ABBI ALUMINUM

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:ABBI ALUMINUM:4167668031 · Building Renovator - General

Last seen May 7, 2026

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ABSOLUTE COMFORT

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:ABSOLUTE COMFORT:9052712911 · Contractor - Heating Contractor

Last seen May 7, 2026 · 2 source records

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ACME HEATING & AIR CONDITIONING

Municipal licence
HVACMississauga, ON
HVAC

City of Mississauga · #Trades Master - Heater:ACME HEATING & AIR CONDITIONING:9056606277 · Trades Master - Heater

Last seen May 7, 2026

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ACTIVE MECHANICAL SERVICES

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ACTIVE MECHANICAL SERVICES:4166798410 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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ACU CONTRACTING

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Drain Contractor:ACU CONTRACTING:9052645555 · Contractor - Drain Contractor

Last seen May 7, 2026

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ADVANCED ROOFING ONTARIO HOME IMPROVEMENTS

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation ContractorsRoofers

City of Mississauga · #Building Renovator - General:ADVANCED ROOFING ONTARIO HOME IMPROVEMENTS:9052780512 · Building Renovator - General

Last seen May 7, 2026

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AECON MINING CONSTRUCTION SERVICES

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:AECON MINING CONSTRUCTION SERVICES:5197518000 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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AIR HEATING PLUS LTD

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:AIR HEATING PLUS LTD:4168896344 · Contractor - Heating Contractor

Last seen May 7, 2026

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AIR PATROL HEATING & A/C SERVICE LTD

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:AIR PATROL HEATING & A/C SERVICE LTD:9054576900 · Contractor - Heating Contractor

Last seen May 7, 2026

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AIR QUALITY DUNRITE

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:AIR QUALITY DUNRITE:4166748184 · Contractor - Heating Contractor

Last seen May 7, 2026

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AIR TECH INSTALLATION

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:AIR TECH INSTALLATION:9056643345 · Contractor - Heating Contractor

Last seen May 7, 2026 · 2 source records

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AKAL PAVING

Municipal licence
General ContractorsMississauga, ON
General ContractorsPaving

City of Mississauga · #Paving Contractor:AKAL PAVING:4167798116 · Paving Contractor

Last seen May 7, 2026

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ALAIR HOMES

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:ALAIR HOMES:4169881661 · Building Renovator - General

Last seen May 7, 2026

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ALDERWOOD PLUMBING SERVICES

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ALDERWOOD PLUMBING SERVICES:4162332440 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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ALL DRAINS SNAKING SERVICES

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Drain Contractor:ALL DRAINS SNAKING SERVICES:9056996531 · Contractor - Drain Contractor

Last seen May 7, 2026 · 2 source records

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ALL STAR PAVING INC

Municipal licence
General ContractorsMississauga, ON
General ContractorsPaving

City of Mississauga · #Paving Contractor:ALL STAR PAVING INC:9056390133 · Paving Contractor

Last seen May 7, 2026

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ALMA PLUMBING & DRAIN SERVICE

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ALMA PLUMBING & DRAIN SERVICE:9056150836 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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AMARELO'S GENERAL CONSTRUCTION LTD

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:AMARELO'S GENERAL CONSTRUCTION LTD:9052713882 · Building Renovator - General

Last seen May 7, 2026

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AMB JENSTAN PLBG & DRAIN SERVICES CO

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:AMB JENSTAN PLBG & DRAIN SERVICES CO:9057935510 · Contractor - Plumbing Contractor

Last seen May 7, 2026

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ANCO MECHANICAL COMPANY LTD

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ANCO MECHANICAL COMPANY LTD:9058567677 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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ANDY COPELAND

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Drain Contractor:ANDY COPELAND:4167715498 · Contractor - Drain Contractor

Last seen May 7, 2026

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ANDY'S RENO

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:ANDY'S RENO:6473397936 · Building Renovator - General

Last seen May 7, 2026

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ANFIELD MECHANICAL SERVICES

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Heating Contractor:ANFIELD MECHANICAL SERVICES:9055697877 · Contractor - Heating Contractor

Last seen May 7, 2026 · 4 source records

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ANGELINI PLUMBING & HEATING

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ANGELINI PLUMBING & HEATING:4167414661 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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ANTHAM CONSTRUCTION GROUP INC

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:ANTHAM CONSTRUCTION GROUP INC:9052780500 · Building Renovator - General

Last seen May 7, 2026

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ANTRIM MECHANICAL

Municipal licence
HVACMississauga, ON
HVACPlumbers

City of Mississauga · #Trades Master - Plumber:ANTRIM MECHANICAL:9059153356 · Trades Master - Plumber

Last seen May 7, 2026

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ANTRIM MECHANICAL LIMITED

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVACPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:ANTRIM MECHANICAL LIMITED:9057915916 · Contractor - Plumbing Contractor

Last seen May 7, 2026

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AP BASEMENT RENOS

Municipal licence
General ContractorsMississauga, ON
General ContractorsRenovation Contractors

City of Mississauga · #Building Renovator - General:AP BASEMENT RENOS:2898882858 · Building Renovator - General

Last seen May 7, 2026

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APEX PLUMBING & DRAINS

Municipal licence
General ContractorsMississauga, ON
General ContractorsPlumbers

City of Mississauga · #Contractor - Plumbing Contractor:APEX PLUMBING & DRAINS:9057992739 · Contractor - Plumbing Contractor

Last seen May 7, 2026 · 2 source records

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APPLEBY SYSTEMS

Municipal licence
General ContractorsMississauga, ON
General ContractorsHVAC

City of Mississauga · #Contractor - Heating Contractor:APPLEBY SYSTEMS:9058251893 · Contractor - Heating Contractor

Last seen May 7, 2026

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APPLEBY SYSTEMS

Municipal licence
HVACMississauga, ON
HVAC

City of Mississauga · #Trades Master - Heater:APPLEBY SYSTEMS:9054643634 · Trades Master - Heater

Last seen May 7, 2026

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