Webcon Roofing
“The team that did the work blasted it off in a day and then came back for a couple of hours the next day to do the finishing touches, a thorough clean-up, and to remove the garbage bin.”
Best Roofing Contractors in Guelph, ON
16 companies listed · all 16 in Guelph · 1 open 24/7 · 4 open weekends · 11 rated 4.5+
Data verified October 21, 2026
Sambor Roofing
“Jay and Luis did a great job and the sales team at Sambor helped us in designing the new colours, making it a super easy process for such a big renovation.”
Wm. Green Roofing Ltd.
“Green Roofing replaced our roof on short notice when the old shingles started to fall apart.”
Hy-Grade Steel Roofing
“We asked them to fix our vent which they didn't have to but did with no problem at all.”
JMN Roofing
“The crew at JMN roofing were excellent to work with for a great price.”
Superior Steel Roofing Systems Inc.
“He gave me all the information without pushing me to help me decide that this was a good product for my home.”
Listed for homeowners in and around Guelph, ON, these 16 companies take roofing work. What each one claims about tear-offs, membranes and workmanship cover is taken from its own website; ratings and quoted lines come from public reviews.
Area overview: Guelph, ON
All 16 companies we list here are in Guelph itself. We have 17 companies in Guelph on file; this page shows the highest-rated 16. The companies on this page are rated from 4.3 to 5.0 across 845 reviews; 6 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (90%), quality (82%) and responsiveness (74%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "communication". 1 is open around the clock; 4 are open on Saturdays and 3 on Sundays. Domain records put 6 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 3 offer emergency call-outs; 3 offer financing or payment plans; 8 give free estimates and 3 are family- or locally-owned. We have a website on file for all 16 of the companies on this page; 14 publish a contact page; 15 list a public email and 1 takes bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do roofers listed for Guelph quote at no charge?
Free estimates are stated by 8 of the 16 companies on this page. A free visit is normal in this trade, though it doubles as a sales call. Ask for photos of the roof and the attic, written findings, and a price that separates the tear-off from anything found under it.
Dave Merkley Roofing Ltd
“We needed to add some new vents in the roof due to remodeling bathrooms- their fellow was prompt, courteous, efficient and left the area spotless.”
Weldun Roofing
“When they were finished, you would never even know we had work done (except it wasn't raining in my kitchen anymore).”
Dowle & Sons Roofing
“They removed all of it above the roof line, sealed it all up and added matching shingles.”
A1 Pros
“Very professional and knowledgeable people, they have great customer support and skills”
Alliance Roofing Ltd
“Attends emergencies quickly and excellent communication.”
Weir Bros. Roofing Inc.
“From their professional experience and pleasant demeanours to their quality and craftsmanship on the roof, they are the best in the biz.”
Hands-On Roofing Co.
“We would definitely recommend them to anyone in the area, and will call them back whenever we need to do more roof work.”
O'Brien Fabrications Ltd.
“Good people went for oceans container welding they were perfect nice people too”
Modified Roofing Systems
“Quick Response, Great Service and Well Priced”
Target Roofing
“Explained what was involved from start to finish.”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
