General Contractors in Sarnia, ON
Find and compare top-rated general contractors serving Sarnia and surrounding Lambton County communities.
Showing top verified contractors serving Sarnia across Lambton County.
Whether you are planning a home addition, a basement finish, or a major renovation, finding the right general contractor in Sarnia is the most important decision you'll make. With 95 general contractors listed for the Lambton County area, you can compare experienced professionals who manage everything from permits and subcontractor coordination to finishing touches. A skilled GC acts as your project manager — handling scheduling, trades, inspections, and quality control so you don't have to. Before hiring, always verify proof of general liability insurance, WSIB clearance, and references from recent comparable projects. Browse listings, read reviews, and request free consultations from 95 general contractors serving Sarnia and surrounding Lambton County communities.
Concrete Sarnia: Concrete Contractors
Concrete Sarnia is a premier concrete contracting company serving residential, commercial, and industrial clients across Sarnia and Lambton County, Ontario. Partnering with local specialists at Michael James Contracting, the company provides comprehensive concrete solutions engineered for durability, structural integrity, and enhanced curb appeal. Their expertise encompasses custom driveways, decorative stamped patios, functional sidewalks, and solid building foundations tailored to both urban and rural properties. From site preparation and reinforcement cage placement to pouring premium ready-mix concrete and applying custom surface finishes, Concrete Sarnia handles every phase of construction with meticulous craftsmanship. The team also offers specialized basement waterproofing, repair work, and protective installations designed to withstand harsh weather conditions and heavy daily use.
Matrix NAC
Matrix Service Company is a leading specialty engineering, procurement, and construction (EPC) contractor serving energy, industrial, and utility infrastructure markets across North America and beyond. Established in 1984, Matrix delivers comprehensive infrastructure solutions across three primary operational segments: Utility and Power Infrastructure, Process and Industrial Facilities, and Storage and Terminal Solutions. With a team of over 2,000 employees, Matrix provides end-to-end services ranging from FEED, detailed engineering, and custom fabrication to major construction, turnaround services, and facility maintenance. The company serves clients across key end markets including oil and gas, power, petrochemicals, renewables, aerospace, and mining, maintaining a strong reputation built on safety, quality, and long-term client relationships.
Big Bass Carpentry
Big Bass Carpentry is a full-service home improvement, general carpentry, and contracting company serving the Lambton Shores region, including Grand Bend, Exeter, and Stratford. With over 28 years of industry experience, the company delivers high-quality craftsmanship across residential and commercial projects of all sizes. Fully insured and Ontario Building Code (OBC) certified, their skilled team utilizes a fully equipped mobile workshop to provide efficient, reliable service for everything from minor repairs to large-scale structural additions. Specializing in end-to-end project management, Big Bass Carpentry handles every phase of construction, from initial Softplan 3D CAD design renderings and permit coordination to detailed budget tracking and final completion. Their comprehensive expertise encompasses custom cabinetry, basement remodels, kitchen and bathroom renovations, siding, exterior remodels, and certified installations for windows, doors, skylights, ICF foundations, and vinyl or wood decking.
Point-Up Masonry
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Hammer For Hire
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
A G Concrete Forming
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Peats Marine Construction
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Scott's Drywall & Interior Finishing
Scott's Drywall & Interior Finishing provides fast, reliable drywall repair and interior finishing services for residential and commercial properties across Sarnia, Corunna, and Lambton County. With over seven years of hands-on experience, the company specializes in complete interior finishing for small home renovations as well as insulation, boarding, and taping for new construction projects. Their dedicated team is committed to punctuality, clean work sites, and meticulous attention to detail on every project. Whether clients need expert drywall repairs, painting and priming, wall renovations, or decorative textured ceilings, Scott's Drywall & Interior Finishing delivers top-notch craftsmanship at affordable rates. Available for emergency services, they work closely with homeowners and commercial clients to bring their interior design visions to life.
Advanced Industrial Systems Inc
AIS specializes in designing, manufacturing, and installing high-performance industrial insulation solutions tailored for complex and demanding environments, including the offshore oil and gas industry. With extensive expertise in facility-wide insulation strategies, AIS offers end-to-end services ranging from custom product design and manufacturing to precise budget estimation and professional construction. Their specialized insulation systems feature advanced construction techniques incorporating customized liners, multi-layer thermal protection, heavy-duty outer jackets, and secure closures. Built to withstand extreme operational conditions, AIS delivers trusted insulation solutions for major offshore vessels, oil production platforms, and unique industrial applications.
Daniel Construction Inc
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Cheyne Construction
Cheyne Construction is a forward-thinking construction and development firm dedicated to delivering high-quality building and property development solutions. Specializing in luxury home building, modular construction, and sustainable development, the company combines innovative architectural concepts with expert craftsmanship to execute residential and commercial projects. From initial site planning and project management to complete build-outs and home renovations, Cheyne Construction delivers exceptional structural integrity, safety, and modern aesthetic appeal. Committed to innovation and energy efficiency, Cheyne Construction incorporates smart home technology, sustainable materials, and renewable energy systems into its building practices. Whether overseeing multi-phase property developments or constructing custom modular homes, Cheyne Construction provides comprehensive, end-to-end contracting services designed to elevate property value and exceed client expectations.
Jaques Farm Drainage
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Innovative Construction Services Inc
Innovative Construction Services Inc. is a leading construction contractor and project management firm serving commercial, industrial, and property owner clients throughout Sarnia-Lambton and Southwestern Ontario. Specializing in design-build capabilities and comprehensive project coordination, the company delivers reliable construction solutions backed by experienced project management, skilled trades supervision, and strict BASES-trained safety standards. Dedicated to long-term performance and client satisfaction, Innovative Construction Services Inc. provides end-to-end site management, efficient scheduling, and quality workmanship across communities including Sarnia, Point Edward, Corunna, Petrolia, Wyoming, Forest, Lambton Shores, St. Clair Township, and Plympton-Wyoming.
Marks Installations
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Chalmers Construction Ltd-See Aluma Systems Inc
Professional general contractors serving Lambton County and surrounding areas. Contact us today for a free estimate.
Frequently Asked Questions — General Contractors in Sarnia
How do I verify a general contractor is legitimate in Ontario?
Ask for proof of general liability insurance and WSIB coverage, check for any trade licences required for the work (electrical, plumbing, gas), verify their business registration, and request references from recent projects in Sarnia or the surrounding Lambton County area.
Do I need a building permit for my renovation in Sarnia?
Most structural renovations, additions, and significant interior changes require a permit from your local municipality. A reputable general contractor will know what permits are needed and will pull them on your behalf before work starts.
How much does a home renovation cost in Sarnia?
Renovation costs vary enormously by project scope. A kitchen or bathroom refresh might run $10,000–$30,000; a full addition or basement finish can range from $50,000 to $200,000+. Always get a minimum of three written quotes and confirm what is and is not included.
What should a contractor's written contract include?
A solid contract should specify the scope of work in detail, materials and brands to be used, start and end dates, payment schedule tied to milestones, warranty on workmanship, and a process for handling changes or overruns. Never pay more than 10–15% upfront.