4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors
RoofingWelland
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How Much Does Roofing Cost in Ontario?
Roofing costs in Ontario depend on roof size, slope, layers to remove, and material choice. Asphalt shingles remain the most popular, but metal roofing is growing. Ontario's freeze-thaw cycles, heavy snow loads, and ice dams make proper installation and ventilation critical. Most roof warranties are 25-50 years on materials but only 5-10 years on workmanship.
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4wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors
RoofingLincoln
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4wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors
RoofingFort Erie
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Quick Price Summary
Average roofing job in Ontario costs around $4,300 CAD. Actual costs depend on scope, materials, and your city.
| Service | Low | Average | High | Unit |
|---|---|---|---|---|
| Shingle Replacement | $5,000 | $8,000 | $15,000 | average home |
| Flat Roof | $4,000 | $7,000 | $12,000 | per 1000 sqft |
| Repair | $300 | $700 | $1,500 | per repair |
| Eavestrough | $800 | $1,500 | $2,500 | full house |
All prices in Canadian dollars (CAD). Updated February 2026. Prices vary by city and project scope.
Roofing Cost Ranges
Shingle Replacementaverage home
$5,000$8,000 avg$15,000
Flat Roofper 1000 sqft
$4,000$7,000 avg$12,000
Repairper repair
$300$700 avg$1,500
Eavestroughfull house
$800$1,500 avg$2,500
What Affects Roofing Pricing?
- 1Roof size (measured in squares — 1 square = 100 sq ft)
- 2Slope/pitch — steeper roofs cost more due to safety requirements
- 3Number of layers to remove (1 vs. 2 tear-offs)
- 4Decking replacement if rotted
- 5Architectural vs. 3-tab shingles vs. metal
- 6Venting, ice shield, and drip edge requirements
When Are Roofing Prices Lowest?
Best Time to Save
September-November and March-April — shoulder seasons with better pricing
Peak Pricing
May-August — peak roofing season with 3-6 week wait times
How to Save on Roofing Work
- Get quotes in fall or winter for spring installation — off-season pricing
- Insurance may cover storm damage — file a claim before paying out of pocket
- Ask about manufacturer certifications (GAF Master Elite, CertainTeed SELECT) for better warranties
- Avoid door-to-door roofers after storms — they often overcharge and do poor work
- Metal roofing costs 2-3x more upfront but lasts 50+ years vs. 20-25 for shingles
Payment Schedule & Protection
Recommended: 10-15% deposit, progress payments tied to milestones, 10% holdback until completion
Ontario Law: Ontario's Construction Act provides a 10% holdback right on construction projects. Read the Construction Act →
Licensing: No mandatory Ontario license, but look for certifications. Not a compulsory trade in Ontario, but reputable roofers carry liability insurance, WSIB, and manufacturer certifications (GAF, CertainTeed, IKO).
Frequently Asked Questions — Roofing Costs
- How much does roofing work cost in Ontario?
- Shingle Replacement: $5,000-$15,000 (average home). Flat Roof: $4,000-$12,000 (per 1000 sqft). Repair: $300-$1,500 (per repair). Eavestrough: $800-$2,500 (full house). All prices are in CAD and approximate for Ontario.
- What factors affect roofing pricing in Ontario?
- Roof size (measured in squares — 1 square = 100 sq ft). Slope/pitch — steeper roofs cost more due to safety requirements. Number of layers to remove (1 vs. 2 tear-offs). Decking replacement if rotted. Architectural vs. 3-tab shingles vs. metal. Venting, ice shield, and drip edge requirements.
- When is the cheapest time to hire a roofing contractor?
- Prices typically drop during: September-November and March-April — shoulder seasons with better pricing. Prices rise during: May-August — peak roofing season with 3-6 week wait times.
- How can I save money on roofing work?
- Get quotes in fall or winter for spring installation — off-season pricing. Insurance may cover storm damage — file a claim before paying out of pocket. Ask about manufacturer certifications (GAF Master Elite, CertainTeed SELECT) for better warranties.
- Should I get multiple quotes?
- Always get at least 3 written quotes. Compare scope, materials, timeline, and warranty — not just price. The cheapest quote often means corners cut.
- How much deposit should I pay?
- 10-15% deposit, progress payments tied to milestones, 10% holdback until completion. Ontario's Construction Act provides a 10% holdback right on construction projects.
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