This list ranks 10 general contractors in Oakville, ON. It starts from Google Maps searches for general contractors and related building work in Oakville: 109 firms were checked, and building and renovation firms with their own website and an open Google listing went forward. Firms are weighed on their Google rating, the number of reviews behind it, how closely their services match general contracting, and their portfolio. The strongest firm overall sits at place 1, places 2 to 4 carry a badge for what each suits best, and places 5 to 10 run in order. Ratings and review counts are Google's, checked October 14, 2026. How we rank
Burlington and Oakville general contractor taking on basement renovations, general contracting projects and custom home work.
Burlington renovation contractor finishing basements and remodelling kitchens, bathrooms and main floors for homeowners in Burlington, Oakville and nearby communities.
Oakville-based contractor doing kitchen, bathroom and basement renovations across Oakville, Mississauga and Burlington, plus flooring and tile work.
Oakville construction company taking on kitchen renovations and general contracting projects.
Burlington firm renovating kitchens, bathrooms and basements and taking on full home renovations, with work in Oakville, Hamilton, Milton and Mississauga.
Oakville renovation company doing interior and exterior projects, from bathrooms and basements to interlock, decks and siding, across the western GTA.
| Rank | Firm | Best for | Services | Google rating | Area |
|---|---|---|---|---|---|
| 02 | RQ Construction | Basement finishing | Basement finishing · Kitchen renovations · Bathroom renovations · Interior renovations | Rated 5.0 out of 5 from 79 Google reviews | Burlington, serves Oakville |
| 03 | GTA Contracting | Kitchen and bathroom renovations | Home renovations · Kitchen renovations · Bathroom renovations · Basement renovations · Water damage restoration | Rated 5.0 out of 5 from 67 Google reviews | Oakville |
| 04 | Maingate Renovation | Kitchens and landscape design | Kitchen renovations · General contracting · Landscape design | Rated 5.0 out of 5 from 62 Google reviews | Oakville |
| 05 | Fact Renovation | Basement finishing and full home renovations | Kitchen renovations · Basement finishing · Bathroom renovations · Full home renovations | Rated 5.0 out of 5 from 55 Google reviews | Oakville |
| 06 | Re-Nuitt Builders | Interior and exterior renovations in the GTA West | Bathroom renovations · Kitchen renovations · Basement renovations · Interlock and flagstone · Decks and pergolas | Rated 4.9 out of 5 from 123 Google reviews | Oakville |
| 07 | Red Stone Contracting | House renovations and restoration in Oakville | Custom home builds · House and condo renovations · Kitchen renovations · Basement renovations · Damage restoration | Rated 4.9 out of 5 from 129 Google reviews | Oakville |
| 08 | Odera Construction Group | Custom homes, renovations and commercial spaces | Custom homes · Renovations · Commercial construction · Project management | Rated 5.0 out of 5 from 51 Google reviews | Oakville |
| 09 | Oakville Renovation | Renovations needing a hired project manager | Kitchen remodelling · Bathroom remodelling · Home additions · Project management · Outdoor carpentry | Rated 5.0 out of 5 from 43 Google reviews | Oakville |
| 10 | AutumnHill Homes | Open-concept and sustainable home renovations | Kitchen renovations · Bathroom renovations · Basement finishing · Open-concept conversions · Rental property updates | Rated 5.0 out of 5 from 33 Google reviews | Oakville |
Five things to confirm with any firm, on this list or not, before you sign. The rules below are Ontario's and Oakville's.
Ask the firm for a clearance certificate from the WSIB, which confirms it is registered for workers' compensation and its account is in good standing. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.
Ask for a certificate of insurance that names the firm and shows commercial general liability coverage in force for the dates of your job, and check that the subcontractors it brings in are covered too.
Building permits for homes in Oakville come from the Town of Oakville, and structural work, additions, new plumbing and electrical work and basement finishing usually need one. Agree in writing who applies for the permit and books the inspections.
Get the scope of work, the payment schedule tied to stages of the work, start and finish dates, how changes are agreed and priced, and who handles permits and cleanup, all in one signed contract before any work starts.
For a new house: a new house in Ontario must be built by a builder licensed by the Home Construction Regulatory Authority (HCRA) and comes with Tarion's warranty: one year on workmanship and materials, two years on items such as water penetration and the electrical, plumbing and heating systems, and seven years on major structural defects. For renovation work, get the firm's own workmanship warranty in writing.
The 10 firms on this list fall into 2 groups, read from what each firm's own site says it does and how it is listed on Google.
Renovation companies renovate existing homes, one room at a time or all of it at once.
General contractors run building projects of many kinds and bring in the trades each job needs.
A general contractor runs the job from start to finish: pricing it, booking and supervising the trades, ordering materials, arranging inspections and keeping the schedule. You deal with one firm instead of hiring the framer, plumber, electrician and drywaller yourself.
Usually, for anything structural, for new plumbing or electrical work, and for most basement finishing, additions and decks. Your municipality sets the rules and issues the permit. Many general contractors apply for it as part of the job, so agree who is responsible before you sign.
A written scope of work, the price and how changes will be priced, a payment schedule tied to stages of the work, start and finish dates, who pulls the permits, and the warranty on workmanship. Pay as stages are completed rather than most of the price up front.
Managing the trades yourself means booking, ordering and supervising each one, arranging the inspections and absorbing the delay when one trade holds up the next. A general contractor does that work and answers for the result. Running it yourself suits small jobs that need one or two trades.
Ask the firm for a clearance certificate from the WSIB. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.
Building permits for homes in Oakville come from the Town of Oakville. For general contracting, structural work, additions, new plumbing and electrical work and basement finishing usually need one. Many firms apply for the permit as part of the job, so agree who does it before you sign.
How much deposit a contractor can fairly ask for, the deposit rules in Ontario, BC and Alberta, when a bigger payment up front is justified, and how to get it back.
Which renovations need a building permit in Ontario, BC and Alberta, project by project, plus the trade permits, who applies, review times, 2026 fees and what skipping a permit costs.
What the 10% construction holdback is, how long Ontario, BC and Alberta make a homeowner keep it, when to release it, and what paying in full too early can cost.
Send the detail that is out of date, or the name and website of a firm that belongs here.
