Roofers in Thornhill
6 roofers in Thornhill, rated 4.8 out of 5 on average, with 268 reviews between them. Compare their portfolio, credential evidence and past work, then shortlist the right one for your project.
No ads · No paid placement · Ranked on evidence only
Roofers in Thornhill
6 roofers found, sorted by Trust Score.
Also offer this trade
Businesses matched to this search whose main trade is different or not held. Scores restart from the top of this group.
Roofers in other areas
Looking further afield? Browse roofers in other parts of Canada.
What to check when hiring roofers in Thornhill
MyTrustedTraders ranks on independent public evidence. No ads, no paid placement. Use these checks alongside the evidence on each profile before you decide who to contact.
- Never agree to roof work from a cold-caller at your door or an unsolicited 'we noticed your roof' note. That is the classic roofing scam.
- Get a written quote that itemizes access (scaffolding or a tower), the exact materials, and the workmanship guarantee, not a vague day rate.
- Be wary of demands for a large cash deposit; agree staged payments against work you can actually see completed.
- Trade licensing in Canada is set by each province or territory. Electrical, gas and plumbing are licensed trades almost everywhere (for example ESA for electrical and TSSA for gas in Ontario), so check your provincial regulator that the contractor is certified for the work before you hire.
- A construction lien is a real risk: in every province an unpaid subcontractor or supplier can register a lien against your home even if you already paid the main contractor. Hold back the statutory amount (commonly around 10%) and get signed lien waivers as you pay.
Frequently asked questions
- How many roofers are there in Thornhill?
- 6 roofers with public evidence are listed in Thornhill, ranked by the strength of that evidence: reviews across named sources, credential evidence and company status.
- How are roofers in Thornhill ordered?
- By independent public evidence only. There are no ads and no paid placement. No roofer can pay to rank higher, add a badge, or change their reviews.
- Are these roofers based in Thornhill?
- We show roofers whose public evidence places them in or near Thornhill. Always confirm a roofer covers your exact address, and check credentials and insurance, before you hire.
- How do I choose the best roofer in Thornhill?
- Weigh roofers in Thornhill on independent public evidence, not adverts: how many reviews they have across named public sources and how well those cross-check, any credential or registry checks we hold, and their company-register status. Here every roofer is ordered by the strength of that evidence. No ads, no paid placement, and no roofer can pay to rank higher. Then confirm credentials, insurance and that they cover your address before you hire.