Best rated roofers in Ontario
Ranked by the share of Google ratings that are one or two stars — lowest first. 12 of the 20 roofers we list in Ontario have enough ratings to compare, against a typical California roofer at 0.8%.
The 12 best rated roofers we list in Ontario
The top 3 are tied at 0% — none of their counted ratings is one or two stars. They share a position number because nothing separates them on the figure this list is ordered by; within the tie, more ratings counted comes first.
| # | Roofing contractor | Google average | Ratings counted | One and two star | Contact |
|---|---|---|---|---|---|
| 1 | United Builders GCroof replacement, professional crew, solar installation5.096 ratings0% one and two star(951) 783-2799 | 5.0 | 96 | 0%0 of 96 | (951) 783-2799 |
| 1 | Sandoval Roofingfast completion, polite staff, patio roof leak repair5.077 ratings0% one and two star(909) 665-6386 | 5.0 | 77 | 0%0 of 77 | (909) 665-6386 |
| 1 | West Meridian Roofing Incroof replacement, polite staff, hardworking crew5.046 ratings0% one and two star(909) 240-7101 | 5.0 | 46 | 0%0 of 46 | (909) 240-7101 |
| 4 | J P Roofingpersonable staff, thoroughness, thorough staff4.998 ratings1.0% one and two star(909) 261-6473 | 4.9 | 98 | 1.0%1 of 98 | (909) 261-6473 |
| 5 | Rocket Roofingwork quality, pricing, quick work4.960 ratings1.7% one and two star(800) 720-0775 | 4.9 | 60 | 1.7%1 of 60 | (800) 720-0775 |
| 6 | Fontana EcoStar Roofing Grouproofing company, roof damage repair, work4.998 ratings2.0% one and two star(909) 316-8397 | 4.9 | 98 | 2.0%2 of 98 | (909) 316-8397 |
| 7 | Hammer ConRoof's Uplandproject, home, leak4.747 ratings2.1% one and two star(909) 341-4567 | 4.7 | 47 | 2.1%1 of 47 | (909) 341-4567 |
| 8 | Ontario Roofingjob, solutions, door4.946 ratings2.2% one and two star(909) 330-4661 | 4.9 | 46 | 2.2%1 of 46 | (909) 330-4661 |
| 9 | Competition Roofingno leaks, respectful crew, leak repair4.850 ratings4.0% one and two star(909) 599-6270 | 4.8 | 50 | 4.0%2 of 50 | (909) 599-6270 |
| 10 | Reliance Roofing Inc.roof replacement, leak repair, job completion4.843 ratings4.7% one and two star(888) 799-9220 | 4.8 | 43 | 4.7%2 of 43 | (888) 799-9220 |
| 11 | Kaliber Roofing Incfair pricing, professional crew, efficient team4.8108 ratings5.6% one and two star(909) 631-0310 | 4.8 | 108 | 5.6%6 of 108 | (909) 631-0310 |
| 12 | T & G Roofing and Solar Company Inc.knowledgeable staff, roof replacement, solar installation4.651 ratings5.9% one and two star(909) 931-3204 | 4.6 | 51 | 5.9%3 of 51 | (909) 931-3204 |
How this order is decided
One sort, on one figure: the share of a roofer’s Google ratings that are one or two stars, lowest first. Both numbers behind it — how many ratings are one or two stars, and how many there are in total — are printed beside every name, so you can check the order against the page and the page against Google.
Roofers whose share prints the same figure share a position number, because they are tied on the only thing being ordered. Within a tie the one with more ratings behind it is listed first; if that is equal too, the higher star average, and then alphabetically. Those last steps only ever separate roofers the figure itself cannot, and they exist so the order is the same every time the site is rebuilt rather than shuffling.
There is no Roof Warden score, no editorial pick and nothing anyone can pay for. We only rank roofers we list with at least 40 ratings, because below that a single unhappy customer swings the percentage by more than the differences we would be ordering on. That leaves 8 roofers on this page unranked — which says nothing about their work, only that there are too few ratings to sort on.
This is not every roofer in Ontario. We list 20, captured from public Google listings, and rank the 12 with enough ratings to compare. Treat it as a shortlist to check, not a complete market.
All 20 roofers we list in Ontario · Best rated across California