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Emergency Roofers in Thorold, ON (2026)

Top 50 of 545 roofers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 roofers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Active leak after a storm: move valuables, catch water and stay off the roof. Report storm damage to your insurer.

The short answer

  1. 1

    #1 for emergency roofing in Thorold: Niagara RoofMasters, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency roofers in Thorold at a glance

Top emergency roofers in Thorold at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Niagara RoofMasters664.8★ (343)Welland, 7 km away24/7
2AJT Roofing and Contracting654.9★ (190)St. Catharines, 8 km away24/7
3Buffalo's Best Roofing Company LLC644.9★ (576)Cheektowaga, 44 km away24/7
4ROOF WIZARD INC645.0★ (79)Niagara Falls, 9 km away24/7
5OConnor Contracting644.9★ (268)Buffalo, 33 km away24/7
6Niagara RoofMasters | Roofing St. Catharines634.8★ (73)St. Catharines, 6 km away24/7
7Graves Brothers Home Improvement634.7★ (494)Williamsville, 44 km away24/7
8Buffalo Roofing634.8★ (379)Williamsville, 43 km away24/7
9King Remodeling Corp roofing contractor635.0★ (177)Buffalo, 36 km away24/7
10Niagara RoofMasters | Eavestrough and Roofing624.8★ (50)Niagara Falls, 11 km away24/7

Call an emergency roofer in Thorold now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency roofers in Thorold, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 545 is on the roofers page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Thorold

    #1 Niagara RoofMasters

    Based in Welland, 7 km away

    66/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.8★ from 343 Google reviews, listed on Google as “Roofing contractor”.

    • 4.8★ from 343 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2275 RR 20 Unit 23, Welland, ON L3B 5N5
    View profile for Niagara RoofMasters(647) 277-4983

  4. #4 ROOF WIZARD INC

    Based in Niagara Falls, 9 km away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 79 Google reviews, listed on Google as “Roofing contractor”.

    • 5.0★ from 79 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5935 Prospect St, Niagara Falls, ON L2G 1G9
    View profile for ROOF WIZARD INC(905) 353-5303

  5. #5 OConnor Contracting

    Based in Buffalo, 33 km away

    64/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Roofing contractor”.

    • 4.9★ from 268 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    106 Hubbardston Pl, Buffalo, NY 14228, United States
    View profile for OConnor Contracting(716) 600-7663

  8. #8 Buffalo Roofing

    Based in Williamsville, 43 km away

    63/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 379 Google reviews, listed on Google as “Roofing contractor”.

    • 4.8★ from 379 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5565 Transit Rd, Williamsville, NY 14221
    View profile for Buffalo Roofing(716) 444-7663

  11. #11 Faber Roofing

    Based in Welland, 14 km away

    62/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 53 Google reviews, listed on Google as “Roofing contractor”.

    • 4.9★ from 53 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    41 Linwood Dr, Welland, ON L3C 2B5
    View profile for Faber Roofing(289) 668-9061

  13. #13 DSS Roofing

    Based in Buffalo, 33 km away

    62/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 87 Google reviews, listed on Google as “Roofing contractor”.

    • 5.0★ from 87 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    127 Hiler Ave, Buffalo, NY 14217, United States
    View profile for DSS Roofing(716) 907-7373

  14. #14 Green Peaks Roofing

    Based in Hamilton, 46 km away

    62/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 161 Google reviews, listed on Google as “Roofing contractor”.

    • 5.0★ from 161 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4024 Woodburn Rd, Hamilton, ON L0R 1C0
    View profile for Green Peaks Roofing(905) 301-7884

  15. #15 Black Rock Roofing

    Based in Buffalo, 31 km away

    62/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.6★ from 123 Google reviews, listed on Google as “Roofing contractor”.

    • 4.6★ from 123 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2064 Niagara St, Buffalo, NY 14207, United States
    View profile for Black Rock Roofing(716) 875-5138

  16. #16 JP Construction

    Based in North Tonawanda, 31 km away

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Roofing contractor”.

    • 4.9★ from 80 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3967 Niagara Falls Blvd, North Tonawanda, NY 14120, United States
    View profile for JP Construction(716) 528-6350

  18. #18 Alpine Roofing

    Based in Toronto, 61 km away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.5★ from 574 Google reviews, listed on Google as “Roofing contractor”.

    • 4.5★ from 574 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    31 Carlaw Ave, Toronto, ON M4M 2R6
    View profile for Alpine Roofing(416) 469-1939

  19. #19 Blampin Roof Tops

    Based in St. Catharines, 7 km away

    61/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Roofing contractor”.

    • 4.8★ from 22 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2 Huntley Crescent, St. Catharines, ON L2M 6E6
    View profile for Blampin Roof Tops(905) 327-7694

  20. #20 911 Roofer

    Based in Thorold

    60/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Roofing contractor”.

    • 4.6★ from 11 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    52 Richmond St, Thorold, ON L2V 3G9
    View profile for 911 Roofer(647) 633-2948

  25. #25 Newfoundland Roofers

    Based in Hamilton, 49 km away

    60/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.8★ from 82 Google reviews, listed on Google as “Roofing contractor”.

    • 4.8★ from 82 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    235 Quigley Rd unit 15, Hamilton, ON L8K 5M9
    View profile for Newfoundland Roofers(289) 442-7663

Top 50 of 545 roofers by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

roofers in Thorold, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26JP Lucky Construction And Roofing594.9★ (143)64 km
27Rain Safe Roofing595.0★ (124)63 km
28Erie Home594.7★ (67)45 km
29Roofing Monkeys594.9★ (143)64 km
30BB’s Regional Roofing and Siding CO.594.9★ (13)16 km
314wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors595.0★ (64)14 km
32Paramount Metal Roofing594.9★ (54)49 km
33Oaks Roofing & Siding595.0★ (21)31 km
34The Roof Whisperer of Hamilton - Skylight Contactor595.0★ (86)62 km
35Cover gta roofing inc.595.0★ (52)53 km
36Custom Contracting Roofing & Eavestrough Repair594.5★ (108)56 km
37Thrifty Roofs584.3★ (70)46 km
38Home Star Roofing LTD584.9★ (76)64 km
39Sharp Exteriors Roofing and Window - Emergency Roof Repairs584.7★ (55)54 km
40Oaks Roofing & Siding585.0★ (36)52 km
41Tops Roofing & Siding584.4★ (93)57 km
424wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors584.7★ (28)6 km
43716 Brothers Construction574.9★ (25)48 km
44Approved Roofers574.8★ (46)60 km
45Luso Roofing & Contracting Inc | Toronto574.9★ (51)64 km
46XOA construction574.9★ (45)62 km
47Skycrest Roofing Experts574.8★ (42)61 km
48HomeVision Roofing & Siding575.0★ (243)64 km
49Premier Choice Roofing & Masonry575.0★ (27)56 km
50Stellar Roofing574.8★ (26)53 km

How we ranked emergency roofers in Thorold

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 roofers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency roofers in Thorold: questions

Which roofers in Thorold are open 24/7?

25 on this list post 24/7 hours, including Niagara RoofMasters, AJT Roofing and Contracting, Buffalo's Best Roofing Company LLC, ROOF WIZARD INC and OConnor Contracting.

Who is ranked #1 for emergency roofing in Thorold, ON?

Niagara RoofMasters is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency roofers in Thorold ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 roofers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the roofer arrives?

Active leak after a storm: move valuables, catch water and stay off the roof. Report storm damage to your insurer.

How many emergency roofers here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Thorold

  1. October 2026: CR Scores recalculated for 545 roofers serving Thorold.
  2. October 2026: 1 duplicate listing merged.

More emergency and roofing pages