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I Rooms Incorporated
- Price
- Siding
“Immaculate work on my siding and they did it in a week.”
Best Roofing Contractors in Thorold, ON
24 companies listed · 4 in Thorold · 5 open 24/7 · 14 open weekends · 20 rated 4.5+
Data verified October 18, 2026
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D.F. Brown Roofing
“Bill and his team are knowledgeable and hard working.”
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Scott's Roofing & Repairs
- Flat Roof
“They worked so hard in dead heat for over a week to give us the most amazing metal roof.”
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Leave It To Me
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Multi Service Maintenance
“Also, you were so kind to ask where the driveway border was so you wouldn't have dump snow on my neighbor's side.”
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Niagara Roofmasters
- Information
- Quality
- Spoke
“Although I did not ultimately use this company for a small siding repair, I must say that Chris DeSousa was very prompt in responding to my inquiry and questions.”
Listed for homeowners in and around Thorold, ON, these 24 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: Thorold, ON
4 of the 24 companies we list are based in Thorold; the other 20 serve Thorold from towns including St. Catharines, Niagara Falls and Niagara-on-the-Lake. 23 of the companies on this page have a rating, from 4.2 to 5.0 across 1,079 reviews; 10 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (83%) and responsiveness (78%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "cleanliness". 5 are open around the clock; 14 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are eavestroughs (4), siding (4), gutter guards (3), soffit & fascia (3) and shingles (2). 1 shows a licence on its website and 1 lists staff certifications (GAF). Domain records put 9 websites of the companies on this page at ten or more years old; the oldest dates from 2007. 6 offer emergency call-outs; 3 offer financing or payment plans; 15 give free estimates and 1 is family- or locally-owned. 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 Thorold quote at no charge?
Free estimates are stated by 15 of the 24 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.
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AJT Roofing and Contracting
- Property
- Leak
- Shingles
“It was a large and complex job, as they needed to work around our recreation schedule, our childcare centre, and the municipal park directly adjacent to our property.”
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Ace 1 Quality Roofing Inc.
- Driveway
- Job
- Communication
“Very appreciative of their work and I've given their cards to all my family and friends, would definitely recommend them if you need a job done right and at a fair price as well.”
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Metal Roofs Niagara
- Product
- Metal Roofing
- Result
“Most importantly, I know Metal Roofs Niagara will be there to answer my call with any further questions I have and that is why going with a local family-run business was so important to me!”
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JD Roofing Inc.
- Projects
- Shingles
- Call
“I wish for more clients to consider the use of a local business with honesty and integrity like this and to feel as good as we did when the job was done.”
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McPherson Roofing
- Quality
- Call
- Honest
“After the wind and rainstorm last night I had a couple of shingles blow off the roof, causing some water leakage into my attic that caused damage to my kitchen cabinets.”
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Noble Roofing
- Questions
- Business
- Property
“Since we wanted to compare contractors and make well informed decision, we asked him numerous follow up questions which he patiently listened/responded to our satisfaction.”
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Hamblet's Roofing Siding Windows
- Shingles
- Price
- Quotes
“While we were meeting with our Builder, John Hamblet himself appeared with a choice of roof shingles in hand, and actually started and completed the entire job with his remarkable team over the Christmas/New Years week”
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Precision Roofing
- Questions
- Happy
- Siding
“I few years ago I had my roof and siding and pretty much everything done on the outside of my house this company was quick and amazing to deal with my mom also had them come out and do work for her as well great company”
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Roof Wizard
- Communication
- Soffit
- Siding
“Our eavestroughs hadn't been replaced since the home was built in 1998, the team was able to squeeze us in for two days later before the next big rainfall.”
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Dykstra Brothers
- Fascia
- Quote
- Pay
“Nicolai and the team went above and beyond to reach out to us and make sure all our needs were met as we sided our century home, and we couldn't be happier with how it turned out!”
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Guenther Metal Roofing
- Garage
- Asphalt
- Season
“An additional challenge for them was that we had already sold our home but it was conditional on a new roof installation (so the timeline was very tight!”
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JPG Roofing & Construction
- Quotes
- Clean
- Estimate
“They had the old roof torn down and the new one laid in a days work, and the crew had the upmost respect for not just my property but the neighbors property too.”
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Gemini Windows
- Quotes
- Price
- Basement
“I have had them install roofs, siding or windows and doors on over a 100 homes over the past few years and customers are always happy with the end result.”
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Blampin Roof Tops
- Price
- Shingles
“They worked quickly, offered reasonable pricing, and proved to be extremely reliable.”
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Discount Roofs
- Business
- Price
- Job
“Where no roofer was able to assist us on priority , Discount Roofs's Team visited the site same day and got the whole job done within 3 business days which was absolutely out of our expectations.”
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R&S Roofing and Siding Inc.
- Job
“After Raul discovered more damage to our roof than we had originally thought, He and Sonia worked with us to fix the issues and made this whole experience so much easier and they really did go the extra mile.”
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Axtanto Commercial Roofing
- Insulation
- Flat Roof
- Commercial Property
“I got my flat roof done with Insulation and TPO and the work has been done very well.”
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Custom Seamless Eavestrough Inc.
- Calls
- Message
- Siding
“We contacted Custom Seamless Eavestrough this spring to give us a quote on replacing our 30 year old troughs with the new Double Pro Microfiltration System, plus get some siding work completed on our garage.”
Roofing Services in Thorold, ON Cost Estimates
Minimum cost
$1640
Maximum cost
$46457
National Average
$10477
Avg Per Hour Rates
$238
$7096
$13863
Fair price range is based on 335 cost profiles
Why these companies made our list
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