How Much Does a General Contractor Cost in Ontario?
General contractors manage entire renovation projects, coordinating multiple trades, pulling permits, and keeping work on schedule and budget. Their fees reflect this project management expertise on top of trade costs.
Quick Cost Summary
| Service | Low | High |
|---|---|---|
| Kitchen Renovation | $25,000 | $75,000 |
| Bathroom Renovation | $10,000 | $35,000 |
| Basement Finish | $30,000 | $75,000 |
| Home Addition (per sq ft) | $150 | $350 |
| Deck Build | $5,000 | $20,000 |
| Full Home Renovation | $100,000 | $300,000 |
| Garage Build | $25,000 | $60,000 |
| Permit & Design (typical) | $2,000 | $8,000 |
What Affects the Cost?
Project Complexity
Structural changes, load-bearing walls, and foundation work add significant cost and require engineering drawings.
Finishes & Materials
The difference between builder-grade and custom finishes can double a kitchen renovation budget.
Permits & Engineering
Major renovations require building permits ($500–$3,000) and sometimes structural engineering reports ($1,000–$3,000).
GC Fee Structure
Most GCs charge 10–20% of the total project as their management fee. Some use cost-plus, others fixed-price contracts.
Licensing in Ontario
Ontario does not require a general contractor licence, which makes verification even more important. Look for WSIB registration, liability insurance, and a track record of completed projects.
Frequently Asked Questions
Do general contractors need a licence in Ontario?
No specific licence is required, which is why using a platform like FinderHub to verify credentials, insurance, and reviews is essential.
How much does a kitchen renovation cost?
Ontario kitchen renovations range from $25,000 for a basic refresh to $75,000+ for a full gut with custom cabinetry and high-end appliances.
Should I get a fixed-price or cost-plus contract?
Fixed-price gives you cost certainty but GCs pad for risk. Cost-plus is transparent but can overrun. For large projects, a hybrid with a guaranteed maximum is ideal.
How do I vet a general contractor?
Check WSIB registration, verify liability insurance ($2M minimum), ask for 3+ references from recent projects, and compare Trust Index scores on FinderHub.
Disclaimer: All prices shown are estimates based on Ontario market research for 2026. Actual costs vary based on job complexity, location, materials, and contractor. Always get 2–3 written quotes from verified professionals before committing. FinderHub is not responsible for pricing accuracy — use these figures as a starting point for budgeting.
General Contractor Costs by City
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