How to Hire a Roofing Contractor in Ontario — Complete Guide

Licensing, costs, questions to ask, and how to avoid bad contractors

Hiring a roofing contractor for your Ontario home is a significant decision, especially given our unique climate and building codes. Finding a reliable, qualified professional requires careful consideration. This guide provides essential, practical advice tailored for Ontario homeowners navigating the hiring process. You need more than just a roofer; you need one who understands local regulations, material requirements, and can withstand our weather extremes. Learn how to verify credentials, request competitive quotes, understand contract details, and ensure the job is done right and complies with Ontario standards. Avoid costly mistakes by making an informed choice that protects your home investment and safety.

Ontario Licensing Requirements for Roofing Contractors

While Ontario does not require a specific licence for roofing, reputable roofers carry WSIB coverage and comprehensive liability insurance. Look for contractors with CertainTeed, GAF, or IKO manufacturer certifications for warranty-backed installations.

Beyond trade-specific licensing, every roofing contractor you hire in Ontario should provide:

Commercial general liability insurance — minimum $2 million coverage
WSIB clearance certificate — protects you if a worker is injured on your property
Business registration — registered with the Ontario government
Municipal permits — where required for the specific work being done

What to Look For in a Roofing Contractor

Experience with your project type. A contractor who specialises in your specific need will deliver better results than a generalist.
Strong local reputation. Check Google reviews (4.0+ rating), ask for roofing-specific references, and look for contractors listed in professional directories.
Clear communication. How quickly do they respond? Do they explain things clearly? Communication quality during the quote process predicts communication quality during the project.
Detailed written quotes. A professional quote itemises labour, materials, permits, and timeline. Vague one-line quotes are a red flag.
Appropriate insurance and credentials. Ask for copies. A contractor who hesitates is one to avoid.

Questions to Ask Before Hiring

Ask every roofing contractor these questions before signing anything:

Are you licensed and insured? Can I see your certificates?
Do you have WSIB coverage for your workers?
How long have you been doing roofing work in Ontario?
Can you provide 3 references from recent roofing projects?
Will you pull the necessary permits?
What is your detailed quote, including materials and labour?
What is your payment schedule? (Never pay 100% upfront.)
What warranty do you offer on labour and materials?
What is the projected timeline, start to finish?
What happens if the project goes over budget or schedule?

DIY vs. Hiring a Professional

DIY-Friendly Tasks

Cleaning gutters, inspecting from ground level, replacing a single loose shingle

Hire a Professional

Full roof replacement, structural repairs, flat roof work, flashing repair, anything requiring working at height without safety equipment

Typical Roofing Costs in Ontario (2026)

Costs vary by project scope, materials, and location. General ranges:

shingle replacement ($8
000-$15
000)
flat roof ($6
000-$12
000)
eavestrough ($800-$2
500)

These are approximate. Get at least 3 written quotes for your specific project. Prices in the GTA tend to be 10-20% higher than in Niagara Region.

Are You a Roofing Contractor in your area?

Get exclusive leads delivered to homeowner mailboxes in your territory. One contractor per trade per area.

Get Your Free Territory Analysis Call: 289-228-7021

Red Flags — When to Walk Away

No written contract. Verbal agreements offer zero protection.
Demands cash only. Reputable businesses accept multiple payment methods and provide receipts.
No insurance or refuses to show proof. You are taking on massive liability.
Quote is dramatically lower than competitors. They are either cutting corners or planning to upsell later.
Pressures you to decide immediately. Real professionals give you time to compare.
Cannot provide references. Either they are new (higher risk) or past clients were unhappy.
Wants full payment upfront. Standard is a deposit (10-30%) with progress payments.

Frequently Asked Questions

Do roofing contractors in Ontario need a licence?

How much does it cost to hire a roofing contractor in Ontario?

Costs range from $5,000 to $18,000 depending on the scope. Common projects: shingle replacement ($8,000-$15,000), flat roof ($6,000-$12,000), eavestrough ($800-$2,500). Always get multiple written quotes.

How do I verify a roofing contractor's credentials?

Ask for their licence number (where applicable), insurance certificate, and WSIB clearance letter. You can verify WSIB coverage online at wsib.ca. Check Google reviews and ask for 3 references from recent Ontario projects.

What should I include in a roofing contract?

A good contract includes: detailed scope of work, materials specified, total cost with payment schedule, start and completion dates, warranty terms, change order process, and cleanup responsibilities.

What if my roofing contractor does poor work?

Document everything with photos. Communicate concerns in writing. If the contractor is unresponsive, file a complaint with the Better Business Bureau, your local consumer protection office, or (for licensed trades) the relevant regulatory body. Small Claims Court handles disputes up to $35,000 in Ontario.

Find Roofing Contractors by City

Browse our verified contractor directory by location:

Grow Your Roofing Business with Direct Mail

If you are a roofing contractor looking for more leads, our direct mail campaigns put your business directly into homeowner mailboxes. No shared leads, no bidding wars — exclusive territory.

Package	Doors	Price	Best For
Test Strike	250	$397	Try 250 doors first
Block Buster (Most Popular)	500	$697	Best ROI per dollar
Street Sweeper	1,000	$1,197	Serious about growth
Neighbourhood Takeover	2,500	$2,497	OWN your territory

Related Resources

Last updated: February 17, 2026

How to Hire a Roofing Contractor in Ontario — Complete Guide