The best general contractors in Oakville in 2026 are Pro House Maintenance, Gracia Makeovers and GTA Contracting, then five more top-rated local firms. Our Google Maps searches found 120 businesses for Oakville. Only 17 were Oakville renovation contractors with a website and 4.5 stars from 10 or more reviews. General West Contractors puts a GTA contractor's fee at 15% to 25% of hard costs.
- Only 17 of the 120 businesses our Oakville general contractor search found met our bar of 4.5 stars from 10 or more reviews.
- The 7 ranked Oakville general contractors hold 4.9 to 5.0 Google ratings, from 36 to 190 reviews each.
- General West Contractors puts a whole-floor or multi-room GTA renovation at $110,000 to $220,000 in 2026 (CAD).
- Oakville charges $17.80 per square metre for an addition permit in 2026, with a $200 minimum fee.
- Ontario requires a written contract for any home renovation worth more than $50.
| Rank | Company | Best for | Credentials | Google rating | Based in |
|---|---|---|---|---|---|
| 1 | Pro House Maintenance | Comparing vetted general contractors for free | Every pro: licences, WSIB, insurance, references, background | Not applicable (matching service) | Serves Oakville |
| 2 | Oakville Home Renovation Contractors by Gracia Makeovers | Design, permits and construction under one contract | None stated on its website | 5.0 (193 reviews) | Oakville |
| 3 | GTA Contracting Inc. | Kitchen and bathroom renovations | Insurance stated (company-stated) | 5.0 (67 reviews) | Oakville |
| 4 | Odera Construction Group | Custom homes and complete home renovations | None stated on its website | 5.0 (51 reviews) | Oakville |
| 5 | Oakville Renovation | Owner-led renovations, carpentry and decks | Founded 2002 (company-stated) | 5.0 (44 reviews) | Service area only |
| 6 | Mr. Basement | Basement finishing and walkout second suites | None stated on its website | 5.0 (36 reviews) | Oakville |
| 7 | Oakville Home Renovation Contractors By Red Stone Contracting | Whole-home renovations and damage restoration | None stated on its website | 4.9 (129 reviews) | Oakville |
| 8 | RE-NUITT BUILDERS INC. | Mixed interior and exterior projects | WSIB stated (company-stated) | 4.9 (125 reviews) | Oakville |
Who are the best general contractors in Oakville in 2026?
The best general contractors in Oakville in 2026 are Pro House Maintenance, Gracia Makeovers and GTA Contracting. Next come Odera Construction Group, Oakville Renovation, Mr. Basement, Red Stone Contracting and Re-Nuitt Builders. All seven firms we rank hold a 4.9 or 5.0 Google rating, from 36 to 190 reviews each.
1. Pro House Maintenance: best for comparing vetted general contractors for free
Pro House Maintenance is our free matching service, and it ranks first because it does the screening for you. The pros we match in Oakville have passed WSIB, insurance, reference and background checks. You describe the job once, get several written quotes and pick the one you want. Our satisfaction guarantee covers the pro you hire.
Oakville has plenty of firms that renovate homes, but few pass a basic bar. Our search found 120, and only 17 held 4.5 stars from 10 or more reviews. Tell us if you plan an addition in Old Oakville, a basement in Glen Abbey or a full redo in Bronte.
- Trade licences. Renovations and additions often include electrical and gas work, so we confirm ESA and TSSA licences for the trades that need them.
- WSIB clearance and liability insurance. We confirm a current WSIB clearance and commercial general liability insurance before a pro joins our network.
- Reviews and references. We read public reviews and speak with past clients before a pro is accepted, looking for patterns, not one-off complaints.
- Background checks. We run background checks before a pro is matched with homeowners, because the people in your home matter as much as the work.
- Tell us about the job. Share the project and your address through the free quote form. It takes about a minute.
- Get matched with vetted pros. We match you with several pros who have already passed our checks and serve your area.
- Compare written quotes. Each pro gives you a written quote, so you can compare price, scope and timing side by side.
- Hire with a guarantee behind you. You choose who to hire. Work from a pro we matched you with is backed by our satisfaction guarantee; ask us for the terms before you sign.
2. Oakville Home Renovation Contractors by Gracia Makeovers: best for design, permits and construction under one contract
- Google rating 5.0 from 193 reviews checked Oct 29, 2026
- Warranty Workmanship warranty company website
- Based in Oakville
- Visit the Oakville Home Renovation Contractors by Gracia Makeovers website
Gracia Makeovers lists a North Service Road West address in Oakville and holds a 5.0 Google rating from 190 reviews, the most on this list. Its site says it is family owned, established in 2003, and focused on kitchens, bathrooms, basements, additions and custom homes.
- Strengths: The site says it handles drawings, permits and inspections, and backs every job with a workmanship warranty.
- Watch-outs: The site does not give the warranty length, so get the term in writing.
- Best for: An addition or main floor redo where you want one firm for design and build.
3. GTA Contracting Inc.: best for kitchen and bathroom renovations
- Google rating 5.0 from 67 reviews checked Oct 29, 2026
- Based in Oakville
- Visit the GTA Contracting Inc. website
GTA Contracting lists an Iroquois Shore Road address in Oakville and holds a 5.0 Google rating from 67 reviews. Its site claims 15+ years of experience. It names kitchens, bathrooms and home interiors as its focus, across Oakville, Mississauga and Burlington.
- Strengths: The site says it is fully insured, with documents on request.
- Watch-outs: We found no warranty terms on its site, so ask for them before you sign.
- Best for: A kitchen or bathroom job in River Oaks or Joshua Creek.
4. Odera Construction Group: best for custom homes and complete home renovations
- Google rating 5.0 from 51 reviews checked Oct 29, 2026
- Based in Oakville
- Visit the Odera Construction Group website
Odera Construction Group lists a Robinson Street address in Oakville and holds a 5.0 Google rating from 51 reviews. Its site says it builds custom homes and complete home renovations. It says it manages every stage from plans and permits to the finishing touches.
- Watch-outs: It also builds commercial spaces, so ask who leads home jobs day to day.
- Best for: A custom home or a whole-house renovation with architect-led plans.
5. Oakville Renovation: best for owner-led renovations, carpentry and decks
- Google rating 5.0 from 44 reviews checked Oct 29, 2026
- Founded 2002 company website
- Based in Service-area business (no public street address)
- Visit the Oakville Renovation website
Oakville Renovation holds a 5.0 Google rating from 44 reviews. Its owner writes on the site that he started the firm in 2002, after working for Mattamy Homes from 1996. He also taught at the York Construction Academy. Its Google listing adds carpenter, deck builder and window installation categories.
- Watch-outs: The Google listing shows no street address, so ask for a written scope.
- Best for: A smaller renovation or deck where you want the owner on the job.
6. Mr. Basement: best for basement finishing and walkout second suites
- Google rating 5.0 from 36 reviews checked Oct 29, 2026
- Warranty Stands behind work with a guarantee company website
- Based in Oakville
- Visit the Mr. Basement website
Mr. Basement lists an Invicta Drive address in Oakville and holds a 5.0 Google rating from 36 reviews. Its site calls the firm basement renovation specialists. It builds walkout second suites, home theatres and gyms, and says it backs its work with a guarantee.
- Watch-outs: It does basements only, and the site does not say what the guarantee covers.
- Best for: A basement in Oakville that needs a walkout or a second suite.
7. Oakville Home Renovation Contractors By Red Stone Contracting: best for whole-home renovations and damage restoration
- Google rating 4.9 from 129 reviews checked Oct 29, 2026
- Based in Oakville
- Visit the Oakville Home Renovation Contractors By Red Stone Contracting website
Red Stone Contracting lists a Speers Road address in Oakville and holds a 4.9 Google rating from 128 reviews. Its site says it has worked in Oakville since 2001. It covers kitchen, bathroom, basement and whole-home renovations, plus mould, flood and fire damage restoration.
- Strengths: The site says it handles the paperwork from permits to inspections.
- Watch-outs: It also does commercial work, so ask who will run your project.
- Best for: A renovation that starts with water or fire damage repair.
8. RE-NUITT BUILDERS INC.: best for mixed interior and exterior projects
- Google rating 4.9 from 125 reviews checked Oct 21, 2026
- Based in Oakville
- Visit the RE-NUITT BUILDERS INC. website
Re-Nuitt Builders lists a Winston Park Drive address in Oakville and holds a 4.9 Google rating from 125 reviews. Its site says it is family owned and serves Mississauga, Oakville, Burlington and Hamilton. It lists interlock, decks, siding, kitchens, bathrooms and basements.
- Strengths: The site says it is licensed, insured and WSIB protected. Check the WSIB status yourself with an eClearance.
- Watch-outs: It works with a network of outside trades, so ask who does each part of the job.
- Best for: A project that mixes a backyard or exterior job with an interior one.
How much does a general contractor cost in Oakville?
An Oakville general contractor charges a fee of 15% to 25% of hard costs in 2026, says General West Contractors. Its GTA guide puts a one-room job at $50,000 to $110,000, and a full gut or mid-size addition at $220,000 to $400,000. Capable Group puts a one-storey GTA addition at $350 to $450 per square foot.
| Job | Typical cost (CAD) | Source |
|---|---|---|
| GC management fee | 15% to 25% of hard costs | General West |
| Focused single-room renovation | $50,000 to $110,000 | General West |
| Whole-floor or multi-room renovation | $110,000 to $220,000 | General West |
| One-storey rear or side addition | $350 to $450 per sq ft | Capable Group |
| Oakville permit, house addition | $17.80 per m2 | Town of Oakville |
| Oakville permit, accessory dwelling unit | $12.00 per m2 | Town of Oakville |
| Oakville permit, interior alteration or basement | $4.90 per m2 | Town of Oakville |
Scope moves the price more than the fee does. General West says structural, framing and envelope work on an addition or gut runs $40,000 to $150,000 or more. In Oakville, a permit has a $200 minimum, and the Town takes a $100 pre-screening fee when you apply.
Our home addition cost guide breaks those numbers down by type, and the general contractor statistics cover Ontario job data. Then get free home addition quotes in Oakville from screened pros.
How do you choose a general contractor in Oakville?
To choose an Oakville general contractor, check its WSIB clearance and liability cover, ask who pulls each permit, then compare written quotes. Ontario law says any home reno contract worth more than $50 must be in writing. The province also suggests a deposit of no more than 10% of the price.
- Check the licence. A general contractor hires the trades, and Ontario says no one can run an electrical contracting business without an ESA licence. Check the electrician on your job in ESA's Contractor Locator.
- Confirm WSIB clearance. Ask for the company’s WSIB account number and confirm a current clearance on WSIB’s free eClearance lookup.
- Ask for proof of liability insurance. A certificate of commercial general liability insurance should name the company that will do the work.
- Ask about city licences and permits. Ask Oakville whether the job needs a municipal licence or building permit before work starts.
- Get it in writing. Under Ontario law, any home renovation contract worth more than $50 must be in writing, and the final price cannot exceed an estimate by more than 10% unless you agree (Ontario consumer protection rules).
- Keep the deposit small. Ontario recommends a down payment of no more than 10%, and never paying in full before the work is done.
Permits are your job unless the contract says otherwise. The Town of Oakville requires a permit before you build an addition, with inspections at set stages under the Ontario Building Code. Name the permit holder in the contract.
Kitchen first? See the best Oakville kitchen firms, our kitchen cost guide or Oakville kitchen quotes. For a lower level, see the basement finishing cost guide.
How did we rank these Oakville general contractors?
We ranked Oakville general contractors on public data, and no firm paid for a spot. Our Google Maps searches for Oakville found 120 businesses. Of those, 53 had a general contractor, construction or remodeler listing, and 48 had a website and an Oakville location. Just 17 held 4.5 stars from 10 or more reviews.
| Step | Businesses remaining |
|---|---|
| Found on Google Maps | 120 |
| Primary Google category is a general contractor | 53 |
| Open, with a website of its own | 48 |
| In Oakville (by address or Google map pin) | 48 |
| 4.5+ stars from 10+ Google reviews | 17 |
| Website readable when checked | 16 |
| Listed on this page (top ranked) | 7 |
We then dropped one firm whose web address now shows a news site, not a contractor, leaving 16 that could rank. None matched a credential record in our check, so we make no licence claims.
The score blends each rating with its review count, so a 5.0 from 190 reviews ranks above a 5.0 from 36. We checked every fact on October 21, 2026, and we recheck every 90 days. Website facts are quoted in our research files. See an error? Tell our editors about it and we will review it.
What do Oakville homeowners ask before they hire a general contractor?
Oakville homeowners ask what a general contractor charges, what an addition permit costs and how to compare local firms. These answers draw on the General West Contractors price guide, the Town of Oakville 2026 fee schedule and our own Oakville research. Each answer stands alone, so go straight to your question.
How much does a general contractor cost in Oakville?
General West Contractors says a GTA general contractor's fee is typically 15% to 25% of hard costs in 2026. A focused single-room renovation runs $50,000 to $110,000, and a full gut or mid-size addition runs $220,000 to $400,000 in CAD. Its guide lists Oakville and Burlington in its service area.
How much is a building permit for an addition in Oakville?
The Town of Oakville charges $17.80 per square metre for a house addition in 2026. An accessory dwelling unit is $12.00 per square metre, and interior alterations and basement finishing are $4.90 per square metre. The minimum permit fee is $200, and a $100 pre-screening fee is credited toward the total.
How much does a home addition cost in Oakville?
Capable Group puts a one-storey GTA rear or side addition at $350 to $450 per square foot of construction in 2026, before HST. A second storey on top runs $400 to $550 per square foot. General West puts a full gut or mid-size addition at $220,000 to $400,000.
How many good general contractors are there in Oakville?
By our count, 17 Oakville general contractors met our bar. Our searches found 120 businesses, and 53 had a general contractor, construction company or remodeler Google listing. Of those, 48 had a website and were in Oakville, and 17 held 4.5 stars from 10 or more reviews. After a site check, 16 could rank.
What should an Oakville renovation contract include?
Ontario says any home renovation contract worth more than $50 must be in writing. It suggests a deposit of no more than 10% and says a final price cannot run more than 10% over an estimate in the contract unless you agree to new work. Ask who pulls the permits and write it down.
Is Pro House Maintenance free for Oakville homeowners?
Yes. Pro House Maintenance is free for homeowners. You describe your renovation once, and we match you with several pros who have passed WSIB, insurance, reference and background checks. You compare their written quotes and choose who to hire, and our satisfaction guarantee backs the work.
Where can you find general contractors near Oakville?
The closest general contractors lists to Oakville cover Mississauga (14 km away), Milton (16 km away) and Burlington (18 km away). Each list follows the same method: 4.5-star Google ratings from 10 or more reviews, official registry checks where Ontario requires a licence, and free vetted matching from Pro House Maintenance at number one.
- Best general contractors in Mississauga (14 km from Oakville)
- Best general contractors in Milton (16 km from Oakville)
- Best general contractors in Burlington (18 km from Oakville)
- Best roofing companies in Oakville
- Best kitchen renovation companies in Oakville
- Best gutter companies in Oakville
- Compare free home additions quotes in Oakville from vetted local pros
- Best general contractors across Ontario, city by city
- Home Additions statistics and cost data from our research team
- General West Contractors, General Contracting Cost Guide (2026)
- Capable Group, Home Addition Cost Calculator: Toronto and GTA Prices (2026)
- Town of Oakville, 2026 Building Services Rates and Fees
- Town of Oakville, Building Permit Application Process
- Government of Ontario, Your rights when starting home renovations or repairs
- WSIB, eClearance lookup