Best rated roofers in Markham
Ranked by the share of Google ratings that are one or two stars — lowest first. 13 of the 18 roofers we list in Markham have enough ratings to compare, against a typical Ontario roofer at 2.9%.
The 13 best rated roofers we list in Markham
The top 4 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 | Lyons Pro Roofing incestimate process, timely completion, fair estimate5.0132 ratings0% one and two star(647) 896-9288 | 5.0 | 132 | 0%0 of 132 | (647) 896-9288 |
| 1 | Bros. Roofingquick work, roof replacement, new roof5.0110 ratings0% one and two star(647) 966-9678 | 5.0 | 110 | 0%0 of 110 | (647) 966-9678 |
| 1 | Unique Roofing Limitedshingle replacement, eavestrough cleaning, respectful crew5.089 ratings0% one and two star(416) 522-3063 | 5.0 | 89 | 0%0 of 89 | (416) 522-3063 |
| 1 | Ck Roofing Solutionsroof replacement, competitive pricing, inspection5.084 ratings0% one and two star(289) 577-9008 | 5.0 | 84 | 0%0 of 84 | (289) 577-9008 |
| 5 | 3S Roofing Ltd.professional crew, quotation, quick work5.0107 ratings0.9% one and two star(647) 937-9687 | 5.0 | 107 | 0.9%1 of 107 | (647) 937-9687 |
| 6 | C Plus Roofingroof replacement, professional crew, shingle replacement4.9655 ratings1.2% one and two star(416) 917-9622 | 4.9 | 655 | 1.2%8 of 655 | (416) 917-9622 |
| 7 | YS Roofingon site inspections, shingle replacement, leaf guard4.972 ratings1.4% one and two star(647) 667-1367 | 4.9 | 72 | 1.4%1 of 72 | (647) 667-1367 |
| 8 | CA ROOFINGclean job site, polite crew, transparent estimate4.958 ratings1.7% one and two star(647) 667-7966 | 4.9 | 58 | 1.7%1 of 58 | (647) 667-7966 |
| 9 | Top Art Roofing Ltdquick response, shingle replacement, polite crew4.9196 ratings2.0% one and two star(416) 930-8939 | 4.9 | 196 | 2.0%4 of 196 | (416) 930-8939 |
| 9 | Roof.toflat roof replacement, promptness, quality of work4.950 ratings2.0% one and two star(647) 801-0837 | 4.9 | 50 | 2.0%1 of 50 | (647) 801-0837 |
| 11 | Sign Waterproofingclean up, roof replacement, efficient work4.942 ratings2.4% one and two star(647) 568-1718 | 4.9 | 42 | 2.4%1 of 42 | (647) 568-1718 |
| 12 | Alpha Roofing Canada - Metal Roofing Companies Ontario, Shingle Roof, Roofers near Markhamroof replacement, metal roof installation, shingle installation4.7155 ratings7.1% one and two star(877) 271-3445 | 4.7 | 155 | 7.1%11 of 155 | (877) 271-3445 |
| 13 | Markham Roofing Serviceswarranty, roof replacement, shingle repair3.442 ratings40.5% one and two star(647) 490-1520 | 3.4 | 42 | 40.5%17 of 42 | (647) 490-1520 |
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 5 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 Markham. We list 18, captured from public Google listings, and rank the 13 with enough ratings to compare. Treat it as a shortlist to check, not a complete market.
All 18 roofers we list in Markham · Best rated across Ontario