570 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in O'Fallon: Accredited Roofing, CR Score 65/100; 4.9★ from 298 Google reviews; open 24/7.
Best for emergencies (open 24/7): iRestore Stl, posts 24/7 hours; ranked #2 of 570.
Most-reviewed: H&F Exteriors, 703 Google reviews at 4.9★, the most of 570 ranked; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
570 O'Fallon roofers are ranked here by CR Score, from ten published factors. 124 are open 24/7, 318 open Saturdays and 181 open Sundays, based on posted hours. The median Google rating is 4.8★ across 570 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Accredited Roofing | 65 | 4.9★ (298) | Fairview Heights, 3 mi away | 24/7 | Overall |
| 2 | iRestore Stl | 64 | 4.8★ (282) | Belleville, 5 mi away | 24/7 | Emergencies |
| 3 | Riverside Restoration LLC | 63 | 4.7★ (230) | Collinsville, 8 mi away | 24/7 | — |
| 4 | Cardinal Plumbing Co. | 62 | 4.9★ (462) | Alton, 26 mi away | 24/7 | — |
| 5 | Family Roofing | 62 | 5.0★ (53) | East Saint Louis, 5 mi away | 24/7 | — |
| 6 | Hulsey Roofing | 61 | 4.8★ (251) | St. Louis, 21 mi away | 24/7 | — |
| 7 | Storm Guard Roofing & Construction of SW St. Louis | 61 | 4.9★ (393) | Murphy, 31 mi away | 24/7 | — |
| 8 | R&R First Choice Roofing | 61 | 4.9★ (43) | Spanish Lake, 7 mi away | 24/7 | — |
| 9 | Commercial Flat Roof Company | 61 | 4.9★ (144) | Clayton, 23 mi away | 24/7 | — |
| 10 | Erie Home | 60 | 4.6★ (32) | O'Fallon | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 298 Google reviews, listed on Google as “Roofing contractor”.
Based in Belleville, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 282 Google reviews, listed on Google as “Roofing contractor”.
Based in Collinsville, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 230 Google reviews, listed on Google as “Roofing contractor”.
Based in Alton, 26 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 462 Google reviews, listed on Google as “Roofing contractor”.
Based in East Saint Louis, 5 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Roofing contractor”.
Based in St. Louis, 21 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 251 Google reviews, listed on Google as “Roofing contractor”.
Based in Murphy, 31 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 393 Google reviews, listed on Google as “Roofing contractor”.
Based in Spanish Lake, 7 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Roofing contractor”.
Based in Clayton, 23 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 144 Google reviews, listed on Google as “Roofing contractor”.
Based in O'Fallon
Ranked #10 because of its Google rating and trade focus: 4.6★ from 32 Google reviews, listed on Google as “Roofing contractor”.
Based in Maryland Heights, 30 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 581 Google reviews, listed on Google as “Roofing contractor”.
Based in St. Louis, 31 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 198 Google reviews, listed on Google as “Roofing contractor”.
Based in Saint Peters, 39 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 634 Google reviews, listed on Google as “Roofing contractor”.
Based in Fairview Heights, 3 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 256 Google reviews, listed on Google as “Roofing contractor”.
Based in Collinsville, 7 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 116 Google reviews, listed on Google as “Roofing contractor”.
Based in Glen Carbon, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 703 Google reviews, listed on Google as “Roofing contractor”.
Based in St. Louis, 24 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 639 Google reviews, listed on Google as “Roofing contractor”.
Based in St. Louis, 15 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “Roofing contractor”.
Based in Belleville, 4 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 200 Google reviews, listed on Google as “Roofing contractor”.
Based in St. Louis, 28 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 165 Google reviews, listed on Google as “Roofing contractor”.
Based in Granite City, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 88 Google reviews, listed on Google as “Roofing contractor”.
Based in Valley Park, 32 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 221 Google reviews, listed on Google as “Roofing contractor”.
Based in Highland, 20 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 140 Google reviews, listed on Google as “Roofing contractor”.
Based in Wildwood, 39 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 393 Google reviews, listed on Google as “Roofing contractor”.
Based in Maryland Heights, 32 mi away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 466 Google reviews, listed on Google as “Roofing contractor”.
#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile. We publish the top 36 of 570 ranked roofers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | CD Strong Construction | 59 | 4.5★ (126) | 19 mi |
| 27 | Robinson Family Roof Repair | 59 | 4.8★ (102) | 26 mi |
| 28 | Redbird Roofing & Exteriors, LLC | 59 | 4.7★ (190) | 31 mi |
| 32 | Cardinal Catastrophe Services Inc. | 59 | 4.4★ (86) | 16 mi |
| 36 | Simmons Family Roofing | 58 | 4.8★ (108) | 21 mi |
2 more roofers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Simmons Family Roofing | 4.7★ (91) | 22 mi |
| Wildwood Roofing & Construction | 4.7★ (20) | 5 mi |
Typical prices in USD: adjusted for Illinois where a published index exists, national otherwise. Each row names its basis.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Roof replacement | $6,880 | $9,180 | $12,850 | Per project: asphalt shingles on a 1,700 sq ft home (about 2,000 sq ft of roof). US national range × 0.92 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
| Roof repair | $395 | $1,174 | $1,968 | Per repair: typical range of customer-reported jobs. US national range | October 2026 |
In Illinois, Illinois Department of Financial and Professional Regulation (IDFPR) licenses Roofing contractor license (limited residential or unlimited).
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
In Illinois, roofers are busiest from late spring to early fall, when shingles can be installed in mild, dry weather. After a big storm, get more than one quote and check the license or registration before signing.
We scored 570 O'Fallon roofers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In O'Fallon data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |