Ace 1 Quality Roofing
Ace 1 Quality Roofing provides residential and commercial roofing services in St. Catharines and throughout the Niagara Region. Its shingle work includes products from GAF, IKO, Timberline, CertainTeed and Malarkey.
Business Highlights
- The company says Dan Mahon owns and operates it and has more than 15 years of roofing-industry experience.
- It is an IKO Select Certified Contractor.
- It is a GAF Certified roofing contractor.
- It is a Malarkey Certified Pro Contractor.
- The company says it is fully licensed and insured.
- It offers free, no-obligation consultations and estimates.
- A free drone inspection includes pictures of roof damage and roof layouts.
Service Area
St. Catharines, Niagara Falls, Welland, Thorold, Fort Erie, Port Colborne, Grimsby, Pelham, Fonthill, Fenwick, Lincoln, Beamsville, Vineland, Jordan, Niagara-on-the-Lake, Wainfleet, West Lincoln, Virgil and Ridgeway.
Featured on ProsGrade. Ace 1 Quality Roofing is one of 12 roofers ProsGrade lists in St. Catharines, Ontario.
9 services listed, including Roof replacement and installation, Roof repairs and maintenance and Metal roofing. Open 24 hours, 7 days a week. Rated 5.0 from 11 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Ace 1 Quality Roofing compares with the other 11 roofers on ProsGrade in St. Catharines, using public Google ratings and review counts.
- Ranks in the top quarter of the 12 St. Catharines roofers on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.8 average of other St. Catharines roofers on ProsGrade.
- One of 10 St. Catharines roofers on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
9 services- Roof replacement and installationarchitectural asphalt shingles
- Roof repairs and maintenanceroutine, emergency and storm-damage repairs
- Metal roofingflat metal roofing
- Eavestroughs and guttersinstallation, repair and maintenance; fascia; gutter installation and cleaning
- Sidingvinyl, fibre cement, wood, metal and aluminum
- Attic insulation and ventilationinsulation; attic vent installation and repairs
- Skylight installationVELUX MK04
- Storm damage assessment and remediation24/7 storm response, emergency tarping and insurance-claim support
- Exterior repairsroofing, siding, gutters, windows and doors
Reviews
What customers say
Customers praise quick responses and professional crews; some also mention clear explanations and tidy work sites. One customer says Dan walked through the project scope in detail, returned the next morning after a leak, addressed the issue and discussed ways to prevent a recurrence.
Customer Reviews
Michael James
Matt C
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Frequently Asked Questions
How long does a roof replacement by Ace 1 Quality Roofing take?
Most residential roofing projects take 1–3 days, depending on size and weather.
Does Ace 1 Quality Roofing offer financing?
Yes. Flexible financing options are available for roofing projects.
Does Ace 1 Quality Roofing guarantee insurance claim approval?
No. The insurer determines coverage, and Ace 1 says it does not guarantee claim approval.
What warranties does Ace 1 Quality Roofing offer on roofing work?
The company lists workmanship and manufacturer warranties for roofing work.








