Top 10 Best Roofing contractors in Cornwall, ON

Updated July 13, 2026

Cornwall's unpredictable weather — from heavy snow to summer storms — makes a solid roof essential. Our 2026 ranking highlights the 10 best roofing contractors in Cornwall, ON, selected for verified reviews, workmanship quality, and local reputation. Each listing includes up-to-date contact details, hours, and warranty information so you can quickly find licensed professionals for roof repairs, shingle replacement, or full reroofing. Whether you’re dealing with leaks, storm damage, or an aging roof, these trusted experts are ready to help across the city.

David Beitz Construction
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 930-4886 · 408 Pitt Street · Get directions

roof repairs new roofing inspections
Ayotte S A Roofing Ltd
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 933-3275 · 1020 Abbot Street · Get directions

roof repairs new roofing inspections
SLG Renovations
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 933-0587 · 432 Anthony Street · Get directions

roof repairs new roofing inspections

Arg Roofing
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 571-6676 · 1106 Churchill Street · Get directions

roof repairs new roofing inspections
Phil`s Renovations
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 938-3533 · 1105 Cumberland Street · Get directions

roof repairs new roofing inspections
Amazing Roofing
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 363-7081 · 405 Belmont Street · Get directions

roof repairs new roofing inspections
Done Right Roofing
No reviews yet Add your review

Roofing contractor · Cornwall ON · Open now, Closes at 17:00

(613) 933-2157 · 820 Campbell Street · Get directions

roof repairs new roofing inspections
First Choice Roofing
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 937-0461 · 103 Fortier Street · Get directions

roof repairs new roofing inspections
WINMAR Cornwall
No reviews yet Add your review

Roofing contractor · Cornwall ON · 24/7 emergency service

(613) 932-0200 · 3300 Second Street East · Get directions

roof repairs new roofing inspections
Cornwall Roof Truss Ltd
No reviews yet Add your review

Roofing contractor · Cornwall ON

(613) 932-1416 · 900 Boundary Rd · Get directions

roof repairs new roofing inspections

Frequently Asked Questions — Roofing contractors in Cornwall, ON

How much does roof repair cost in Cornwall, ON?

Minor shingle repairs usually cost $200–$600, while larger leak fixes run $500–$1,500. Full roof replacements depend on materials and size — typically $6,000–$15,000+ for asphalt or metal roofs in this area.

Do roofing companies offer emergency service after storms?

Yes. Many roofing contractors provide 24/7 emergency tarping and leak mitigation after heavy rain, wind, or hail. These services protect interiors until permanent repairs can be scheduled.

Are roofing contractors licensed and insured in Ontario?

Reputable roofers carry liability insurance, WSIB/workers’ compensation coverage, and follow provincial Working-at-Heights safety requirements. Always request proof of insurance and safety compliance before work begins.

How was this Top 10 list created?

The Canada Online editorial team applies a 30-point evaluation system covering verified ratings, review quality, business completeness (NAP accuracy, photos, hours), responsiveness, service reliability, and local reputation. Rankings are manually reviewed and updated quarterly.

Can I add my roofing company to this list?

Yes — roofing contractors serving Cornwall, ON can claim or add their business via the “Add Company” page. Verified, complete profiles with strong reviews are considered for future updates.