Roofers in St. Catharines
24 roofers in St. Catharines with multi-platform trust scores.
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Who is the best roofer in St. Catharines, Ontario?
The highest-scoring roofers in St. Catharines on ProScore are LM Exteriors (74/100), Niagara RoofMasters | Roofing St. Catharines (71/100) and Vassa Metal Roofing (70/100). ProScore has scored 24 roofers in St. Catharines across 10+ data sources and 20+ trust signals. 3 of the 24 are Trusted-tier (70+) or higher.
Star ratings alone do not separate them: 20 of the 24 average 4.5 stars or higher on Google, but only 3 reach Trusted (70+). ProScore also weighs government licensing where it applies, WSIB coverage, ratings on other platforms and what customers say in their reviews.
Trust scores last computed October 13, 2026.
Which roofers in St. Catharines score highest?
All 24 scored roofers in St. Catharines, ranked by ProScore.
ProScore scores 24 roofers in St. Catharines, and their average score is 57 out of 100. 3 of them reach the Trusted threshold of 70 or higher. 24 have Google reviews on file — 696 reviews in total, and 5 carry a Better Business Bureau rating. Across Ontario, 16% of the roofers ProScore has scored reach the Trusted threshold; at 13%, St. Catharines is below the provincial rate.
LM Exteriors is a roofing contractor in St. Catharines that balances competitive pricing with quality materials and adapts scheduling to fit customers' needs.
LM Exteriors ranks 1st of the 24 roofers ProScore scores in St. Catharines, holding a ProScore of 74 out of 100 (Trusted tier). Its score draws on 80 Google reviews averaging 4.9 out of 5 and 24 reviews on other major review platforms.
Niagara RoofMasters conducts thorough diagnostic assessments to identify underlying structural issues, educate customers on roofing problems, and price work accordingly rather than overselling; a roofing contractor in St. Catharines offering online estimates and available in English, French, Italian, and Spanish.
Niagara RoofMasters | Roofing St. Catharines ranks 2nd of the 24 roofers ProScore scores in St. Catharines, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 73 Google reviews averaging 4.8 out of 5.
Vassa Metal Roofing is a roofer based in St. Catharines that operates seven days a week and has wheelchair-accessible parking.
Vassa Metal Roofing ranks 3rd of the 24 roofers ProScore scores in St. Catharines, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 6 Google reviews averaging 5.0 out of 5 and 77 reviews on other major review platforms.
AJT Roofing and Contracting is a roofer based in St. Catharines that operates around the clock, seven days a week.
The ProScore for AJT Roofing and Contracting draws on 190 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+.
JD Roofing Inc. is a roofing contractor based in St. Catharines, operating six days a week and offering service in English, French, and Italian.
The ProScore for JD Roofing Inc. draws on 89 Google reviews averaging 4.9 out of 5 and 8 reviews on other major review platforms.
Open six days a week, Blampin Roof Tops is a roofing contractor based in St. Catharines.
The ProScore for Blampin Roof Tops draws on 22 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+.
The ProScore for Skyway Roofing draws on 25 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
The ProScore for Easy Roofing St. Catharines draws on 32 Google reviews averaging 4.9 out of 5.
4wards Exteriors Inc is a St. Catharines roofer that also handles siding, eavestroughs, windows and doors, and operates 24 hours a day, seven days a week.
The ProScore for 4wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors draws on 28 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+.
Garden City Roofing provides roofing services in St. Catharines and operates six days a week.
The ProScore for Garden City Roofing draws on 24 Google reviews averaging 4.6 out of 5.
Available 24/7, Ace 1 Quality Roofing handles roofing, siding, and eavestrough work in St. Catharines and provides online estimates.
The ProScore for Ace 1 Quality Roofing | Siding, Eavestroughs, Roofing - St. Catharines draws on 10 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
R&S Roofing And Siding Inc. is a roofing contractor based in St. Catharines, operating 24 hours a day, seven days a week.
The ProScore for R&S Roofing And Siding Inc. draws on 25 Google reviews averaging 4.8 out of 5.
Lodde Roofing is a roofing contractor based in St. Catharines that provides estimates online and operates weekdays, with on-site free parking and a wheelchair-accessible washroom; services are available in English, French, Portuguese, and Spanish.
The ProScore for Lodde Roofing draws on 31 Google reviews averaging 4.2 out of 5.
The ProScore for Valleyridge Contracting draws on 17 Google reviews averaging 5.0 out of 5.
The ProScore for Campbell Roofing & Siding draws on 4 Google reviews averaging 5.0 out of 5.
The ProScore for Videl Roofing Inc. draws on 3 Google reviews averaging 5.0 out of 5.
The ProScore for Metal Roofing by Hindrea draws on 2 Google reviews averaging 5.0 out of 5.
The ProScore for TS Metal Roofing draws on 1 Google review averaging 5.0 out of 5.
Earl Contracting Corporation is a roofing contractor in St. Catharines, Ontario, open weekdays and equipped with wheelchair-accessible parking.
The ProScore for Earl Contracting Corporation draws on 2 Google reviews averaging 5.0 out of 5.
Open seven days a week, Roofing Guaranteed Inc is a roofer in St. Catharines.
The ProScore for Roofing Guaranteed Inc draws on 17 Google reviews averaging 4.1 out of 5.
The ProScore for Precision Roofing-Quality Extrrs draws on 3 Google reviews averaging 5.0 out of 5.
The ProScore for Respectable Roofers Inc draws on 2 Google reviews averaging 5.0 out of 5.
The ProScore for Christensen Ed Roofing Limited draws on 7 Google reviews averaging 3.9 out of 5.
The ProScore for AR Malton Roofing & Restorations draws on 3 Google reviews averaging 2.7 out of 5.
How is a roofer's ProScore calculated?
Every roofer in St. Catharines is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing where it applies and WSIB), Transparency (online presence and profile completeness), and Sentiment (AI analysis of customer reviews). The result is a ProScore from 0 to 100.
Read the full methodology →Who are the top 3 roofers in St. Catharines?
What else should I check before hiring roofers in St. Catharines?
Frequently Asked Questions
Who is the best roofer in St. Catharines?
LM Exteriors has the highest ProScore (74/100) among 24 roofers in St. Catharines, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing where it applies, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy roofer in St. Catharines?
Look for roofers with verified active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In St. Catharines, 0 roofers hold Elite-tier ProScores (81+), 3 are Trusted-tier (70+), and 12 are Good-tier (54+).
Are roofers in St. Catharines licensed?
Ontario has no provincial licence for roofers. Ask for proof of WSIB coverage and liability insurance, and for any business licence your municipality requires.
How many roofers has ProScore scored in St. Catharines?
ProScore has scored 24 roofers in St. Catharines, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed October 13, 2026.
What's the ProScore distribution among roofers in St. Catharines?
Among 24 roofers in St. Catharines, Ontario: 0 are Elite-tier (81+), 3 are Trusted-tier (70+), and 12 are Good-tier (54+). Together they average a ProScore of 57/100, with LM Exteriors leading at 74/100.
How do roofers in St. Catharines compare with Ontario as a whole?
13% of the roofers ProScore has scored in St. Catharines reach the Trusted tier (70+), against 16% across Ontario as a whole, so St. Catharines is below the provincial rate.
Roofers near St. Catharines
The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.
Other trades in St. Catharines
Other trades with a ProScore page in St. Catharines, with the number of scored pros in each.