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Roofers in Waterloo

9 roofers in Waterloo with multi-platform trust scores.

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Who is the best roofer in Waterloo, Ontario?

The highest-scoring roofers in Waterloo on ProScore are William's United Roofing (73/100), Garcia Roofing Ltd. (65/100) and Reuter Roofing (63/100). ProScore has scored 9 roofers in Waterloo across 10+ data sources and 20+ trust signals. 1 of the 9 are Trusted-tier (70+) or higher.

Star ratings alone do not separate them: 4 of the 9 average 4.5 stars or higher on Google, but only 1 reaches 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 between October 13, 2026 and October 31, 2026.

Which roofers in Waterloo score highest?

All 9 scored roofers in Waterloo, ranked by ProScore.

ProScore scores 9 roofers in Waterloo, and their average score is 52 out of 100. 1 of them reaches the Trusted threshold of 70 or higher. 4 are registered with WSIB. 9 have Google reviews on file — 196 reviews in total, and 2 carry a Better Business Bureau rating.

1
73
Waterloo|★4.9
WSIB Verified68 reviews

William's United Roofing is a roofer based in Waterloo, Ontario. The business offers online estimates, has wheelchair-accessible parking, and operates six days a week.

William's United Roofing ranks 1st of the 9 roofers ProScore scores in Waterloo, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 68 Google reviews averaging 4.9 out of 5. Public records show it is registered with WSIB.

2
65
Waterloo|★4.8
WSIB Verified36 reviews

Garcia Roofing Ltd. provides roofing services in Waterloo and is available 24/7.

Garcia Roofing Ltd. ranks 2nd of the 9 roofers ProScore scores in Waterloo, holding a ProScore of 65 out of 100 (Good tier). Its score draws on 36 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.

3
63
Waterloo|★4.2
WSIB Verified64 reviews

Reuter Roofing ranks 3rd of the 9 roofers ProScore scores in Waterloo, holding a ProScore of 63 out of 100 (Good tier). Its score draws on 64 Google reviews averaging 4.2 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.

4
58
Waterloo|★4.7
13 reviews

Custom Contracting Roofing & Eavestrough Repair Waterloo operates seven days a week and offers online estimates for roofing and eavestrough work in Waterloo.

The ProScore for Custom Contracting Roofing & Eavestrough Repair Waterloo draws on 13 Google reviews averaging 4.7 out of 5.

5
51
Waterloo|★5.0
1 review

Sapphire Roofing Waterloo is a roofing contractor based in Waterloo that provides on-site work and offers online estimates, with wheelchair-accessible parking and weekday availability.

The ProScore for Sapphire Roofing Waterloo draws on 1 Google review averaging 5.0 out of 5.

6
41
Waterloo|★4.0
4 reviews

The ProScore for Doctor Roof Ltd. draws on 4 Google reviews averaging 4.0 out of 5 and a Better Business Bureau rating of A+.

7
40
Waterloo|★3.0
2 reviews

Kingsley Roofing is a roofing contractor based in Waterloo that operates on-site and offers online estimates, with availability six days a week.

The ProScore for Kingsley Roofing draws on 2 Google reviews averaging 3.0 out of 5.

8
37
Waterloo|★3.0
2 reviews

The ProScore for All Pro Roofing & SheetMetal Ltd. draws on 2 Google reviews averaging 3.0 out of 5.

9
36
Waterloo|★3.7
WSIB Verified6 reviews

The ProScore for Louis-Z Contracting Inc. draws on 6 Google reviews averaging 3.7 out of 5. Public records show Louis-Z Contracting Inc. is registered with WSIB.

How is a roofer's ProScore calculated?

Every roofer in Waterloo 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 →

Frequently Asked Questions

Who is the best roofer in Waterloo?

William's United Roofing has the highest ProScore (73/100) among 9 roofers in Waterloo, 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 Waterloo?

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 Waterloo, 0 roofers hold Elite-tier ProScores (81+), 1 is Trusted-tier (70+), and 3 are Good-tier (54+).

Are roofers in Waterloo 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. Of the top 9 roofers in Waterloo by ProScore, 4 are registered with WSIB according to ProScore’s records.

How many roofers has ProScore scored in Waterloo?

ProScore has scored 9 roofers in Waterloo, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between October 13, 2026 and October 31, 2026.

What's the ProScore distribution among roofers in Waterloo?

Among 9 roofers in Waterloo, Ontario: 0 are Elite-tier (81+), 1 is Trusted-tier (70+), and 3 are Good-tier (54+). Together they average a ProScore of 52/100, with William's United Roofing leading at 73/100.

Roofers near Waterloo

The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.