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ContractorsRanked

Best Roofers in Alton, IL (2026)

653 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Alton: Cardinal Plumbing Co., CR Score 94/100; 4.9★ from 462 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Cardinal Contractors, posts 24/7 hours; ranked #2 of 653.

  3. 44

    Most-reviewed: Prestige Power Washing, 999 Google reviews at 4.9★, the most of 653 ranked; ranked #44.

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

653 Alton roofers are ranked here by CR Score, from 8 published factors. 152 are open 24/7, 373 open Saturdays and 218 open Sundays, based on posted hours. The median Google rating is 4.8★ across 653 rated businesses.

Top 10 roofers in Alton at a glance

Top 10 roofers in Alton at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cardinal Plumbing Co.944.9★ (462)Alton24/7Overall
2Cardinal Contractors904.8★ (634)Saint Peters, 22 mi away24/7Emergencies
3Total Roofing905.0★ (198)St. Louis, 21 mi away24/7—
4Accredited Roofing894.9★ (298)Fairview Heights, 23 mi away24/7—
5Erie Home894.6★ (581)Maryland Heights, 19 mi away24/7—
6Robinson Family Roof Repair894.8★ (102)Florissant, 9 mi away24/7—
7Bone Dry Roofing894.7★ (575)Saint Peters, 25 mi away24/7—
8Commercial Flat Roof Company894.9★ (144)Clayton, 19 mi away24/7—
9Storm Guard Roofing & Construction of SW St. Louis894.9★ (393)Murphy, 31 mi away24/7—
10Recovery Roofing Solutions885.0★ (54)Staunton, 10 mi away24/7—

The 653 best roofers in Alton, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  3. #3 Total Roofing

    Based in St. Louis, 21 mi away

    90/100CR Score

    Ranked #3 because of its Google rating and availability: 5.0★ from 198 Google reviews, open 24/7.

    • 5.0★ from 198 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12747 Olive Blvd Suite 300, St. Louis, MO 63141
    View profile for Total Roofing(618) 719-6767

  4. #4 Accredited Roofing

    Based in Fairview Heights, 23 mi away

    89/100CR Score

    Ranked #4 because of its Google rating and availability: 4.9★ from 298 Google reviews, open 24/7.

    • 4.9★ from 298 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    705 Lincoln Hwy, Fairview Heights, IL 62208
    View profile for Accredited Roofing(618) 616-7515

  5. #5 Erie Home

    Based in Maryland Heights, 19 mi away

    89/100CR Score

    Ranked #5 because of its Google rating and availability: 4.6★ from 581 Google reviews, open 24/7.

    • 4.6★ from 581 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    128 Weldon Pkwy, Maryland Heights, MO 63043
    View profile for Erie Home(314) 254-8330

  7. #7 Bone Dry Roofing

    Based in Saint Peters, 25 mi away

    89/100CR Score

    Ranked #7 because of its Google rating and availability: 4.7★ from 575 Google reviews, open 24/7.

    • 4.7★ from 575 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5895 Suemandy Dr, St Peters, MO 63376
    View profile for Bone Dry Roofing(636) 942-6931

  13. #13 Hulsey Roofing

    Based in St. Louis, 25 mi away

    88/100CR Score

    Ranked #13 because of its Google rating and availability: 4.8★ from 251 Google reviews, open 24/7.

    • 4.8★ from 251 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3810 Paule Ave, St. Louis, MO 63125
    View profile for Hulsey Roofing(314) 846-7663

  15. #15 iRestore Stl

    Based in Belleville, 27 mi away

    88/100CR Score

    Ranked #15 because of its Google rating and availability: 4.8★ from 282 Google reviews, open 24/7.

    • 4.8★ from 282 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2331A Old Collinsville Rd, Belleville, IL 62221
    View profile for iRestore Stl(618) 641-9533

  16. #16 John Beal Roofing

    Based in Maryland Heights, 19 mi away

    88/100CR Score

    Ranked #16 because of its Google rating and availability: 4.5★ from 466 Google reviews, open 24/7.

    • 4.5★ from 466 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12181 Prichard Farm Rd, Maryland Heights, MO 63043
    View profile for John Beal Roofing(314) 625-9741

  17. #17 ARS Construction

    Based in Wildwood, 33 mi away

    87/100CR Score

    Ranked #17 because of its Google rating and availability: 4.8★ from 393 Google reviews, open 24/7.

    • 4.8★ from 393 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    16943 Manchester Rd, Wildwood, MO 63040
    View profile for ARS Construction(844) 445-7663

  23. #23 Fuchs Roofing

    Based in Chesterfield, 30 mi away

    87/100CR Score

    Ranked #23 because of its Google rating and availability: 4.9★ from 167 Google reviews, open 24/7.

    • 4.9★ from 167 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18336 Edison Ave #17, Chesterfield, MO 63005
    View profile for Fuchs Roofing(636) 486-3939

Roofers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 653 ranked roofers here; the rest are on their profiles.

roofers in Alton, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Robinson Family Roof Repair874.8★ (85)18 mi
27WCC Roofing Co.874.8★ (221)29 mi
28Arrowhead Roofing & Exteriors874.9★ (138)29 mi
29Meridian Roofing and Renovation874.9★ (31)10 mi
30Crown Restoration LLC.864.9★ (160)33 mi
31Redbird Roofing & Exteriors, LLC864.7★ (190)26 mi
32Perry Family Roof Repair864.9★ (104)19 mi
33Cox Roofing and Restoration, LLC864.8★ (73)20 mi
34Riverbend Roofing Services and Construction LLC864.4★ (20)In Alton
35All Weather Roofing Systems864.7★ (75)18 mi
36Clark Brothers Roofing & Construction864.9★ (96)28 mi
37RRR Roofing LLC865.0★ (39)20 mi
38Henry Family Roofing Company864.8★ (99)18 mi
39Clark Brothers Roofing & Construction864.9★ (96)29 mi
40DHI Roofing St. Louis864.8★ (57)20 mi
41R&R First Choice Roofing864.9★ (43)19 mi
42Second To None Exteriors864.8★ (115)28 mi
43Thomas Family Roofers864.8★ (105)27 mi
44Prestige Power Washing864.9★ (999)38 mi
45Evolved Roofing & Construction864.9★ (33)17 mi
46Family Roofing865.0★ (53)26 mi
47Simmons Family Roofing864.7★ (47)17 mi
48Perry Family Roof Repair864.8★ (76)17 mi
49Crown Exteriors LLC864.7★ (212)33 mi
50Master Roofers of America855.0★ (30)19 mi

Also serving Alton

20 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.

Unranked roofers serving Alton
BusinessGoogle ratingDistance
Alton Seamless Gutters & Home improvement5.0★ (2)In Alton
Anderson Roofing3.0★ (2)5 mi
Campbell’s Construction & Restoration5.0★ (2)In Alton
Cardinal Catastrophe Services Inc.4.4★ (86)13 mi
Community Rebuilding & Improvement PLLCIn Alton
Don Forbes Home Impropvement2.3★ (6)In Alton
Ferguson Roofing & Exteriors4.8★ (74)20 mi
Infinity Dumpster Rental4.1★ (18)In Alton
Magnus Construction3.0★ (2)17 mi
Rely Flat Roof Company St Louis3.0★ (2)14 mi
Simmons Family Roofing4.8★ (108)23 mi
Simmons Family Roofing4.8★ (92)25 mi
Simmons Family Roofing4.7★ (91)22 mi
Simmons Family Roofing4.8★ (85)25 mi
St. Louis Synthetic Roofing5.0★ (2)16 mi
T's Waterproofing and General Contracting - Gutter Cleaning, Gutter Repair & Installation Service in Madison IL5.0★ (2)3 mi
Tinman Property Renovations and Handyman Services3.0★ (4)In Alton
Trask General Construction5.0★ (2)15 mi
We Show Up Services5.0★ (2)17 mi
Wildwood Roofing & Construction4.6★ (394)31 mi

How much do roofers cost in Alton?

Typical prices in USD: adjusted for Illinois where a published index exists, national otherwise. Each row names its basis.

How much do roofers cost in Alton?
JobLowTypicalHighBasisChecked
Roof replacement$6,880$9,180$12,850Per 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$1,968Per repair: typical range of customer-reported jobs. US national rangeOctober 2026

How to check a roofer's license in Illinois

In Illinois, Illinois Department of Financial and Professional Regulation (IDFPR) licenses Roofing contractor license (limited residential or unlimited).

  1. Check that the status is active and the name matches the contract or truck.
  2. Ask for proof of insurance before work starts.

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

When to hire a roofer in Illinois

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.

How we ranked Alton roofers

We scored 653 Alton roofers on 8 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. Unknown factors are left out of the score, 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Alton data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Roofers in Alton: frequently asked questions

Who is the best roofer in Alton?

By CR Score, the highest-ranked roofer in Alton, IL is Cardinal Plumbing Co. with a CR Score of 94/100. It has 4.9★ from 462 Google reviews. It is open 24/7. Cardinal Contractors (#2) and Total Roofing (#3) follow. We ranked 653 roofers on 8 factors, last updated October 22, 2026.

How many roofers are there in Alton?

ContractorsRanked ranks 653 roofers serving Alton, IL. 2 of them are based in Alton; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.

Which roofers in Alton are open 24/7?

152 ranked roofers in Alton post 24/7 hours. The highest-ranked are Cardinal Plumbing Co. (#1), Cardinal Contractors (#2) and Total Roofing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which roofers in Alton work on weekends?

373 of 653 ranked roofers post Saturday hours and 218 post Sunday hours. The highest-ranked open Saturdays are Cardinal Plumbing Co. (#1), Cardinal Contractors (#2) and Total Roofing (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a roofer's license in Illinois?

In Illinois, Illinois Department of Financial and Professional Regulation (IDFPR) handles licensing and covers Roofing contractor license (limited residential or unlimited).

How much does roof replacement cost in Alton?

Roof replacement typically costs $6,880 to $12,850, with $9,180 typical (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)). The range is adjusted for Illinois. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Alton roofers have?

The median Google rating among 653 rated roofers in Alton is 4.8★, with a median of 20 reviews. Prestige Power Washing has the most, 999 reviews, and ranks #44. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire a roofer in Alton?

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.

Update log for Alton

  1. October 2026: CR Scores recalculated for 653 roofers serving Alton.
  2. October 2026: 4 duplicate listings merged.

More roofers and Alton pages

Other trades in Alton