Best General Contracting Contractors in Oshawa, ON
27 general contracting contractors found in Oshawa
Finlayson Construction
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Homes Etc...
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Horvats House to Home Construction
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Cooke Contracting
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Investo Property Managememt
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Shab renovation
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
Unipowertech powered by Babar
Oshawa, ON
Ratings aggregated by AI and may contain inaccuracies.
How much does general contracting cost in Oshawa?
Most homeowners spend $100-$200 per square foot on a full home renovation - roughly $40,000-$120,000 for a typical project. A light cosmetic refresh can run $15-$60/sq ft; a full gut to the studs reaches $150-$325/sq ft, or $150,000-$220,000+ on a whole 1,500-2,000 sq ft home.
In Oshawa, ON, typical quotes tend to track the Canadian average, so the table below shows these national figures unchanged.
What moves the price: The low end is a cosmetic refresh that keeps the layout, plumbing and wiring in place; the top end is a full gut to the studs with new systems throughout, plus the contractor's management fee on bigger scopes.
| Project | Typical cost in Oshawa |
|---|---|
| Full home renovation (mid-range) | $100-$150/sq ft $60 to $200 per sq ft |
| Cosmetic / surface refresh | $25-$45/sq ft $15 to $60 per sq ft |
| Full gut renovation (down to studs) | $200-$275/sq ft $150 to $325 per sq ft |
| General contractor management fee | 15-20% 10% to 25% of project cost |
| Whole-home renovation (typical home, total) | $150,000-$220,000 $90,000 to $300,000 total project |
| Kitchen renovation | $30,000-$55,000 $18,000 to $75,000 total project |
| Bathroom renovation | $18,000-$30,000 $12,000 to $40,000 total project |
| Basement finishing | $45,000-$75,000 $30,000 to $95,000 total project |
| Kitchen renovation (mid-range) | $42,000 $30,000 to $55,000 per project |
| Kitchen update (cosmetic) | $16,000 $10,000 to $25,000 per project |
| Full bathroom renovation (mid-range) | $19,000 $14,000 to $26,000 per project |
| Basement finishing (mid-range, per sq ft) | $80 $55 to $100 per sq ft |
What changes the price of general contracting in Oshawa
- Permits, design, and project management: Structural changes need permits and sometimes an engineer or architect, and the contractor's management fee and design costs layer on top of construction.
- Scope - cosmetic vs. gut: Updating surfaces (paint, flooring, fixtures) costs a fraction of taking a space down to the studs. Removing or moving walls, especially load-bearing ones, is the single biggest swing in price.
- Kitchens and bathrooms: They pack plumbing, electrical, tile, cabinetry, and appliances into a small footprint, so they cost far more per square foot than bedrooms or living rooms.
- Finishes and materials: Laminate vs. custom cabinetry, porcelain vs. natural stone, builder-grade vs. designer fixtures can easily double or triple the cost of the same job.
- Moving plumbing, electrical, and HVAC: Relocating pipes, adding circuits, or upgrading an electrical panel brings in more trades and permits. Keeping fixtures where they are saves thousands.
- Age and condition of the home: Older homes hide surprises - knob-and-tube wiring, asbestos, mould, or out-of-code framing - that must be fixed before the visible work can start.
How general contracting prices vary across Canada
Big cities cost more. Toronto and Vancouver typically run about 20-40% above the national average, driven by higher labour rates, permit costs, and demand. Calgary, Ottawa, and Montreal sit near or modestly above the national average. Smaller cities and rural areas can come in 10-20% lower. The same scope of work can swing 30-50% in total between a small town and downtown Toronto or Vancouver.
These are typical Oshawa-area price ranges based on 2026 Canadian market data, not quotes. Your actual cost depends on the size and details of your project. Post your project on Bidmii to get free quotes from the 27 general contracting contractors listed in Oshawa above.
Frequently Asked Questions about General Contracting in Oshawa
How much does general contracting cost in Oshawa?
The cost of general contracting services in Oshawa, ON varies depending on the scope of work. Post your project on Bidmii to receive free, competitive quotes from local professionals.
How do I find a licensed general contracting contractor in Oshawa?
Browse our directory of general contracting contractors in Oshawa above. Look for contractors with the Verified badge, which means their identity has been confirmed. You can also check ratings aggregated from multiple platforms.
How many general contracting contractors are in Oshawa?
Bidmii currently lists 27 general contracting contractors in Oshawa, ON. Our directory is growing — create a free listing if you're a contractor.
What is the difference in cost between a cosmetic and a gut renovation?
A cosmetic renovation keeps the layout, plumbing, and wiring in place and just updates surfaces - paint, flooring, fixtures, maybe cabinets - so it is the cheapest route, often $15-$60 per square foot. A gut renovation strips the space back to the framing and rebuilds everything, including new plumbing, electrical, insulation, and drywall. Because you are paying for every trade, gut renos usually cost 3 to 5 times more per square foot than a cosmetic refresh.
How can I keep my renovation budget under control?
The biggest savings come from keeping your layout the same - leaving kitchens, bathrooms, and load-bearing walls where they are avoids the most expensive work. Choose mid-range finishes where they will not be seen up close, get a detailed written quote that breaks out labour, materials, and the contractor's fee, and set aside a contingency of 10-20% for the surprises older homes almost always hide.
How much does a kitchen renovation cost in Canada?
Most Canadian kitchen renovations run $25,000 to $75,000 in 2026. A cosmetic refresh can come in around $10,000-$25,000, while a full custom kitchen with new cabinets, stone counters and layout changes can reach $60,000-$100,000 or more.