Find Contractors in Ontario

GP Custom Metals

GP Custom Metals is a Specialty Contractor that serves the Brampton, ON area and specializes in Structural Steel Framing Fabrication.

Serv-A-Yard

Chatham-Kent, ON • London, ON • Petrolia, ON • Sarnia, ON

General Contractor, Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional

Cast In Place Concrete, Ceilings, Concrete, Curbs and Gutters, Curbs Gutters Sidewalks and Driveways, Demolition, Door and Window Hardware, Driveways, Electrical, Estimating, Excavation and Fill

Serv-A-Yard is a General Contractor, Specialty Contractor that serves the Mooretown, ON area and specializes in Cast In Place Concrete, Ceilings, Concrete, Curbs and Gutters, Curbs Gutters Sidewalks and Driveways, Demolition, Door and Window Hardware, Driveways, Electrical, Estimating, Excavation and Fill.

Bawating Building Science

Stratford, ON

Consultant

Residential

Architectural Design and Engineering

Bawating Building Science is a Consultant that serves the Kettle and Stoney Point, ON area and specializes in Architectural Design and Engineering.

Mcdowell Drain & Waterproofing

Fort Erie, ON • Grimsby, ON • Lincoln, ON • Niagara Falls, ON • Niagara-on-the-Lake, ON • St Catharines, ON • Thorold, ON • Welland, ON • West Lincoln, ON

Specialty Contractor

Commercial, Residential

Plumbing, Waterproofing

McDowell Drain & Waterproofing is Niagara’s trusted expert in drainage, plumbing, and waterproofing. With over 45 years of experience, we provide professional drain repair, sewer line replacement, sump pump installation, and weeping tile systems in Niagara Falls, St. Catharines, Welland, Thorold, and surrounding areas. From clogged drains and camera inspections to interior and exterior basement waterproofing, we handle it all—fast, clean, and guaranteed. Locally owned and Google Guaranteed, our licensed technicians offer honest service, advanced technology, and no-cost estimates to keep your home dry and protected year-round

J. Tomaz Contracting Inc.

Newmarket, ON • Toronto, ON

Specialty Contractor

Commercial, Residential

Structural Steel, Wood Framing

🏗️ Custom Homes/Insurance/Subdivisions
📍 Toronto | Newmarket | Surrounding Areas

Ray

Toronto, ON

Consultant

Commercial

Design and Engineering

Ray is a Consultant that serves the Toronto, ON area and specializes in Design and Engineering.

Greer Galloway, a Division of Jp2g Consultants Inc

Kingston, ON

Engineer

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Electrical Design and Engineering, Electronic Life Safety

Greer Galloway, a Division of Jp2g Consultants Inc is a Engineer that serves the Kingston, ON area and specializes in Electrical Design and Engineering, Electronic Life Safety.

Category 5 Imaging

Alberta • British Columbia • Manitoba • Ontario • Québec • Saskatchewan

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional

Glazing Surface Films, Wall Coverings, Wall Finishes

Category 5 Imaging is a Specialty Contractor that serves the Burlington, ON area and specializes in Glazing Surface Films, Wall Coverings, Wall Finishes.

Intactglass

Toronto, ON

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Glass and Glazing

We manufacture, supply and install Smartfilm, Smartglass and Smart IG Units that are made in Canada

Ampot Portable Toilets & Fence

Ajax, ON • Aurora, ON • Barrie, ON • Bradford West Gwillimbury, ON • Brampton, ON • Brock, ON • Burlington, ON • Caledon, ON • Cambridge, ON • Clarington, ON • East Gwillimbury, ON • Erin, ON • Georgina, ON • Guelph/Eramosa, ON • Halton Hills, ON • Hamilton, ON • Innisfil, ON • King, ON • Kitchener, ON • Markham, ON • Midland, ON • Milton, ON • Mississauga, ON • New Tecumseth, ON • Newmarket, ON • Oakville, ON • Orangeville, ON • Orillia, ON • Oro-Medonte, ON • Oshawa, ON • Penetanguishene, ON • Pickering, ON • Ramara, ON • Richmond Hill, ON • Scugog, ON • Severn, ON • Toronto, ON • Uxbridge, ON • Vaughan, ON • Whitby, ON • Whitchurch-Stouffville, ON

Supplier

Commercial

Equipment Rental

Ampot Portable Toilets & Fence is a Supplier that serves the Gormley, ON area and specializes in Equipment Rental.

RICHARDS WILCOX DOOR SYSTEMS OF LONDON

Ontario

Specialty Contractor, Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Access Doors and Panels, Coiling Doors and Grilles, Folding Doors and Grills, Traffic Doors

RICHARDS WILCOX DOOR SYSTEMS OF LONDON is a Specialty Contractor, Supplier that serves the Delaware, ON area and specializes in Access Doors and Panels, Coiling Doors and Grilles, Folding Doors and Grills, Traffic Doors.

FASTSIGNS of South Mississauga and Oakville

Mississauga, ON • Toronto, ON • Alberta • British Columbia • Ontario

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Signage

FASTSIGNS of South Mississauga and Oakville is a Specialty Contractor that serves the Mississauga, ON area and specializes in Signage.

Anchor Home Comfort

Arnprior, ON • Clarence-Rockland, ON • Ottawa, ON

Specialty Contractor

Residential

Heating Ventilating and Air Conditioning HVAC, Plumbing

Since 1986, Anchor Home Comfort has proudly provided expert HVAC services to homeowners across Ottawa and surrounding areas. With a reputation built on trust, craftsmanship, and long-term customer relationships, we’ve helped thousands of families stay comfortable through every season. Whether it’s a furnace upgrade, AC installation, or complex repair, our experience means you’re in capable hands—every time.

Enveetech

Mississauga, ON

Consultant

Commercial

Construction Software Solutions

Enveetech is a Consultant that serves the Mississauga, ON area and specializes in Construction Software Solutions.

CNG CONTRACTING

Barrie, ON • Brampton, ON • Burlington, ON • Caledon, ON • Cambridge, ON • Harley Canton, ON • London, ON • Markham, ON • Milton, ON • Mississauga, ON • Ontario, CA • Oshawa, ON • Richmond Hill, ON • St Catharines, ON • Toronto, ON • Ontario

General Contractor, Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional, Residential

Acoustic Ceilings, Aluminum Siding, Blanket Insulation, Blown Insulation, Board Insulation, Board Product Air Barriers, Carpeting, Cast In Place Concrete, Ceilings, Cement Plastering, Ceramic Tile Faced Panels, Ceramic Tiling, Cleaning and Maintenance Of Existing Period Conditions, Cleaning Services, Closet Doors, Concrete, Concrete Finishing, Concrete Paving, Concrete Tiling, Construction Waste Management and Disposal, Countertops, Curbs Gutters Sidewalks and Driveways, Custom Ornamental Simulated Woodwork, Dampproofing, Decking, Decorative Finishing, Demolition, Door and Window Hardware, Door Hardware, Electrical, Electrical General, Estimating, Final Cleaning, Finish Carpentry, Fire Detection and Alarm, Flashing and Trim, Flooring, Flooring Treatment, Folding Doors and Grills, Forming, General Construction Management, Grading, Grouting, Gypsum Board, Gypsum Plastering, Hardboard Siding, Heating Ventilating and Air Conditioning HVAC, HVAC Air Distribution System Cleaning, HVAC General, Interior Design, Interior Specialties, Interior Wall Paneling, Irrigation, Job Site Data Collection and Reporting, Landscape Design and Engineering, Landscaping, Loose Fill Insulation, Masonry, Masonry Flooring, Membrane Roofing, Mirrors, Painting, Painting and Coatings, Paver Tiling, Paving and Surfacing, Plaster and Gypsum Board, Plaster and Gypsum Board Assemblies, Plumbing, Plumbing General, Project Management, Project Management and Coordination, Roof Accessories, Roof Specialties, Roofing, Rough Carpentry, Shingles and Shakes, Site Clearing, Sliding Glass Doors, Soffit Vents, Specialty Flooring, Sprayed Insulation, Stoves, Structure Demolition, Structured Polycarbonate Panel Assemblies, Toilet Bath and Laundry Accessories, Tubs and Pools, Wall Finishes, Wardrobe and Closet Specialties, Window Hardware, Window Treatments, Windows, Wood Flooring, Wood Framing, Wood Paneling, Wood Screens and Shutters

CNG Contracting is a family-owned renovation company based in Brampton, dedicated to transforming spaces into functional and aesthetically pleasing environments. Since our inception in 2005, we have been driven by a passion for craftsmanship and a commitment to delivering exceptional quality in every project we undertake.

Our journey began with the simple belief that using our hands to build meaningful structures can change lives. Over the years, we have built a reputation in the Greater Toronto Area for our integrity, reliability, and innovative solutions. Each renovation represents not just a project, but a partnership with our clients, built on trust and communication.

At CNG Contracting, we understand that every space tells a story. Our mission is to enhance the value of our clients’ investments by creating tailored solutions that reflect their unique needs and aspirations. Whether it’s a cozy home renovation or a large-scale commercial project, our expert team is dedicated to ensuring that every detail meets the highest standards of quality.

A Legacy of Quality and Commitment
We take pride in our collaborative approach, working closely with clients throughout the renovation process to ensure their vision is fully realized. Our focus on exceptional service and transparent communication has been the cornerstone of our success, enabling us to build lasting relationships with each client.

As we continue to grow, our dedication to quality and craftsmanship remains unwavering. CNG Contracting is more than just a renovation company; we are your trusted partner in creating spaces that inspire and enhance your lifestyle.

Our Mission
At CNG Contracting, we strive to provide renovation services that meet the diverse requirements of clients in Toronto and beyond. Our mission is to design spaces that not only fulfill functional needs but also resonate with the personal styles and aspirations of our clients. We believe in building trust through exceptional quality and service.

Our History
CNG Contracting started in 2005 as a family-owned business driven by a love for construction. Our vision was straightforward: to create functional and aesthetically pleasing structures that improve the quality of life for individuals and businesses alike. With each project, our reputation for craftsmanship and dedication has grown.

Mersey Heating and Air Conditioning

Aurora, ON • King City, CA • Markham, ON • Richmond Hill, ON • Toronto, ON • Vaughan, ON

Specialty Contractor

Residential

Heating Ventilating and Air Conditioning HVAC, Plumbing

Since 1974, Mersey Heating and Air Conditioning has provided reliable HVAC services to homeowners and businesses in Scarborough. Our decades of experience show our commitment to delivering quality service and customer satisfaction, with thousands of successful installations and repairs.

From furnace installations to air conditioner maintenance and complete HVAC system upgrades, our experienced team delivers prompt, professional service with long-term solutions. Don’t wait for breakdowns, choose Mersey Heating and Air Conditioning for reliable HVAC service backed by our satisfaction guarantee.

Buildon Enterprises LTD

Edmonton, AB • Manitoba, MB • Alberta • British Columbia • Newfoundland and Labrador • Ontario • Saskatchewan

General Contractor

Commercial, Residential

Design and Engineering, Project Management and Coordination, Rough Carpentry

Buildon Enterprises LTD is a General Contractor that serves the Toronto, ON area and specializes in Design and Engineering, Project Management and Coordination, Rough Carpentry.

Alliance Fabricating Ltd.

Sarnia, ON

Engineer

Industrial and Energy

Design and Engineering

Alliance Fabricating Ltd. is a Engineer that serves the Sarnia, ON area and specializes in Design and Engineering.

Jess-Don Dunford Ltd.

Ontario

Supplier

Commercial, Residential

Heating Ventilating and Air Conditioning HVAC

Jess-Don Dunford Ltd. is a Supplier that serves the Guelph, ON area and specializes in Heating Ventilating and Air Conditioning HVAC.

Casa Di Luce

Toronto, ON

Supplier

Commercial, Residential

Temporary Lighting

Casa Di Luce is a Supplier that serves the Toronto, ON area and specializes in Temporary Lighting.

Regal Consulting Engineers

Ontario

Consultant

Commercial, Institutional, Residential

Electrical Design and Engineering, Mechanical Design and Engineering

Regal Consulting Engineers is a Consultant that serves the Mississauga, ON area and specializes in Electrical Design and Engineering, Mechanical Design and Engineering.

CMT Technical Solutions

Toronto, ON • California

Consultant, Engineer

Industrial and Energy

Construction Scheduling, General Construction Management

CMT Technical Solutions is a Consultant, Engineer that serves the Oakville, ON area and specializes in Construction Scheduling, General Construction Management.

Broeders Steel

Goderich, ON • Hamilton, ON • London, ON • Sarnia, ON • Waterloo, ON

Supplier

Commercial, Healthcare, Infrastructure, Institutional, Residential

Structural Steel, Structural Steel Framing Erection, Structural Steel Framing Fabrication

Broeders Steel is a Supplier that serves the Dashwood, ON area and specializes in Structural Steel, Structural Steel Framing Erection, Structural Steel Framing Fabrication.

TS Upholstery

TS Upholstery is a Specialty Contractor that serves the Mississauga, ON area and specializes in Furniture.

MAC ABSOLUTE INC

King, ON

Engineer

Commercial

Design and Engineering

MAC ABSOLUTE INC is a Engineer that serves the King City, ON area and specializes in Design and Engineering.

Starlight Invest

Mississauga, ON

Owner Real Estate Developer

Residential

Roadway Construction

Starlight Invest is a Owner Real Estate Developer that serves the Toronto, ON area and specializes in Roadway Construction.

The Master Group

Ontario

Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Electrical, Heating Ventilating and Air Conditioning HVAC, Plumbing

The Master Group is a Supplier that serves the Vaughan, ON area and specializes in Electrical, Heating Ventilating and Air Conditioning HVAC, Plumbing.

Anderson Aluminum

Brant, ON • Brantford, ON • Burlington, ON • Cambridge, ON • Guelph, ON • Haldimand, ON • Kitchener, ON • Norfolk, ON • North Dumfries, ON • Woodstock, ON

General Contractor, Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Aluminum Framed Entrances and Storefronts, Aluminum Siding, Batten Seam Sheet Metal Wall Cladding, Blown Insulation, Board Insulation, Ceilings, Composite Doors, Composite Fences and Gates, Composite Wall Panels, Composite Windows, Composition Siding, Door and Window Hardware, Door Hardware, Exterior Specialties, Fiber Cement Siding, Finish Carpentry, Glued Laminated Construction, Hardboard Siding, Interior Wall Paneling, Manufactured Exterior Specialties, Metal Doors and Frames, Metal Faced Panels, Metal Wall Panels, Metals, Plastic Composite Paneling, Plastic Composite Railings, Plastic Composite Trim, Plastic Siding, Plastic Wall Panels, Plastic Windows, Plywood Siding, Polymer Based Exterior Insulation and Finish System, Roof and Deck Insulation, Roof Panels, Roofing, Sheet Metal Flashing and Trim, Sheet Metal Membrane Air Barriers, Sheet Metal Roofing, Sheet Metal Wall Cladding, Sheet Metal Waterproofing, Sheet Waterproofing, Shingles and Shakes, Siding, Snow Control, Soffit Panels, Soffit Vents, Special Wall Surfacing, Specialty Ceilings, Standing Seam Sheet Metal Wall Cladding, Steel Siding, Thermal Insulation, Timber Framed Entrances and Storefronts, Wall Coverings, Wall Finishes, Wall Panels, Wall Vents, Water Drainage Exterior Insulation and Finish System, Waterproofing, Weather Barriers, Wood Doors and Frames, Wood Framing, Wood Paneling, Wood Screens and Shutters, Wood Shake Siding, Wood Shingle Siding, Wood Siding, Wood Trim, Wood Wall Panels, Wood Windows, Zinc Siding

Anderson Aluminum is a full-service exterior contractor based in Brantford, Ontario, specializing in high-quality exterior building solutions. We work with homeowners, builders, and general contractors on projects ranging from residential renovations to large-scale commercial and agricultural builds.
Our services include eavestrough, soffit, fascia, siding, metal cladding, and exterior finishing systems, with a focus on clean installation, durable materials, and long-term performance. We take pride in clear communication, dependable scheduling, and workmanship that holds up in real-world conditions.
Whether it’s a custom home, renovation, or new construction project, Anderson Aluminum delivers practical solutions built to last.

Michael O'Keefe Limited

Amherstburg, ON • Brooke-Alvinston, ON • Chatham-Kent, ON • Essex, ON • Kingsville, ON • LaSalle, ON • Lakeshore, ON • Lambton Shores, ON • Leamington, ON • Petrolia, ON • Plympton-Wyoming, ON • Sarnia, ON • Tecumseh, ON • Thames Centre, ON • Windsor, ON

Specialty Contractor, Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Aggregate Surfacing, Concrete, Concrete Finishing, Concrete Paving, Contaminated Soils Abatement and Remediation, Demolition, Earthwork, Embankment Dams, Embankments, Erosion and Sedimentation Controls, Excavation and Fill, Gabion Retaining Walls, Grading, Guideways Railways, Paving and Surfacing, Precast Concrete Retaining Walls, Rail Tracks, Railway Construction, Railway Equipment, Railway Signaling and Control Equipment, Retaining Walls, Roadway Construction, Roadway Equipment, Roadway Signaling and Control Equipment, Shoreline Protection, Stone Retaining Walls, Structure Demolition, Temporary Storm Water Pollution Control, Underground Storage Tank Removal, Water Drainage Exterior Insulation and Finish System

Michael O'Keefe Limited is a small company with large capabilities. With 40 years of experience performing rail road maintenance and track construction, as well as 50 years of experience providing specialized excavation service we have built a fleet of state of the art equipment operated by skilled operators. 

Nadalus General Contracting

Toronto, ON

General Contractor

Commercial

Civil Design and Engineering, Electrical, Mechanical Design and Engineering

Nadalus General Contracting is a General Contractor that serves the Toronto, ON area and specializes in Civil Design and Engineering, Electrical, Mechanical Design and Engineering.

George Brown

Ontario

General Contractor

Infrastructure

Cleaning Services, Concrete, Conservation Services

George Brown is a General Contractor that serves the Toronto, ON area and specializes in Cleaning Services, Concrete, Conservation Services.

Tri-Clean Building Services Inc.

Ontario

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Cleaning Services, Final Cleaning, Progress Cleaning

Tri-Clean Building Services Inc. is a Specialty Contractor that serves the Mississauga, ON area and specializes in Cleaning Services, Final Cleaning, Progress Cleaning.

Reliable Painters & Decorators Ltd

Ontario

General Contractor

Commercial, Residential

Painting and Coatings

Reliable Painters & Decorators Ltd is a General Contractor that serves the Oakville, ON area and specializes in Painting and Coatings.

Judoe Inc.

Kitchener, ON • London, ON • Windsor, ON

Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Cleaning Services

Judoe Inc. is a Supplier that serves the London, ON area and specializes in Cleaning Services.

Double M Plumbing & Mechanical

Ontario

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Heating Ventilating and Air Conditioning HVAC, Instrumentation and Control For HVAC, Instrumentation and Control For Plumbing, Plumbing

Double M Plumbing & Mechanical is a Specialty Contractor that serves the Innisfil, ON area and specializes in Heating Ventilating and Air Conditioning HVAC, Instrumentation and Control For HVAC, Instrumentation and Control For Plumbing, Plumbing.

Lee Kieswetter Heavy Civil Inc.

Brant, ON • Cambridge, ON • Centre Wellington, ON • Guelph, ON • Kitchener, ON • Waterloo, ON • Wellington North, ON • Woodstock, ON

Specialty Contractor

Commercial, Infrastructure, Institutional, Residential

Excavation and Fill, Grading, Roadway Construction

Lee Kieswetter Heavy Civil Inc. is a Specialty Contractor that serves the Waterloo, ON area and specializes in Excavation and Fill, Grading, Roadway Construction.

Zero Environmental Inc

Cambridge, ON • Kitchener, ON • Waterloo, ON

General Contractor, Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Abatement and Remediation, Asbestos Abatement and Remediation, Biohazard Abatement and Remediation, Demolition

Zero Environmental Inc is a General Contractor, Specialty Contractor that serves the Kitchener, ON area and specializes in Abatement and Remediation, Asbestos Abatement and Remediation, Biohazard Abatement and Remediation, Demolition.

Advanced Coatings Inc

Ontario

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional, Residential

Dampproofing, Waterproofing

Advanced Coatings Inc is a Specialty Contractor that serves the Toronto, ON area and specializes in Dampproofing, Waterproofing.

Trim Tech Installation Inc

my company specialists interior trim and door also fire door ,hollow metal doors installation or repair 

Apex Window Films

Toronto, ON

Specialty Contractor

Commercial, Institutional, Residential

Glazing Surface Films

Apex Window Films is a Specialty Contractor that serves the Toronto, ON area and specializes in Glazing Surface Films.

Contractors in Ontario

9,076 Results

GP Custom Metals

Serv-A-Yard

Bawating Building Science

Mcdowell Drain & Waterproofing

J. Tomaz Contracting Inc.

Ray

Greer Galloway, a Division of Jp2g Consultants Inc

Category 5 Imaging

Intactglass

Ampot Portable Toilets & Fence

RICHARDS WILCOX DOOR SYSTEMS OF LONDON

FASTSIGNS of South Mississauga and Oakville

Anchor Home Comfort

Enveetech

CNG CONTRACTING

Mersey Heating and Air Conditioning

Buildon Enterprises LTD

Alliance Fabricating Ltd.

Jess-Don Dunford Ltd.

Casa Di Luce

Regal Consulting Engineers

CMT Technical Solutions

Broeders Steel

TS Upholstery

MAC ABSOLUTE INC

Starlight Invest

The Master Group

Anderson Aluminum

Michael O'Keefe Limited

Nadalus General Contracting

George Brown

Tri-Clean Building Services Inc.

Reliable Painters & Decorators Ltd

Judoe Inc.

Double M Plumbing & Mechanical

Lee Kieswetter Heavy Civil Inc.

Zero Environmental Inc

Advanced Coatings Inc

Trim Tech Installation Inc

Apex Window Films

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