Sheet 02
The register
Pull dated 2026-08-23
The St. Charles County roofing register
All 81 roofing contractors with a registered address inside the county, in weighted order, with the arithmetic printed so you can argue with it.
Advertising disclosure
Keys Roofing is the advertiser here, is a roofing contractor working in this county, and wants your business. Keys is not ranked below and cannot be: a company does not get to place itself in a list it is paying for. Keys appears once, in the box immediately under this one, clearly marked as a paid featured placement.
Featured placement, shown separately and not ranked
Keys Roofing
Roofing, gutters and downspouts across greater St. Louis, Missouri, including St. Charles County. Atlas and Malarkey shingles. Licensed and insured. Not in the register below, by design.
How this was built
Method
Source. One dataset of 263 rated businesses assembled from three Google Maps pulls on 2026-08-23 covering St. Louis County, St. Charles County and Chesterfield, deduplicated on place identifier.
Filter. Only rows whose category is exactly Roofing contractor, and only rows carrying both a rating and a rating count. Rows categorised as gutter cleaning services were excluded, because in this market that category is mostly pressure washing and window cleaning outfits and listing them as roofers would be wrong.
Scope. Registered address inside St. Charles County: St. Charles, St. Peters, O'Fallon, Wentzville, Lake Saint Louis, Weldon Spring, Dardenne Prairie and Cottleville. That gives 81 rows.
Order. Ratings are not comparable across wildly different sample sizes. A 5.0 from two people is not better evidence than a 4.8 from six hundred. So each row is shrunk toward the pool: weighted score equals (C times m plus R times n) divided by (C plus n), where R is the rating, n is the number of ratings, m is the rating count weighted mean of the whole pool at 4.722, and C is a confidence constant of 50, chosen because 50 is close to the median rating count in this pool. A firm with far more than 50 ratings keeps almost all of its own score. A firm with two ratings is pulled most of the way back to the pool mean.
What this ranking is not
It is not a quality assessment and it cannot be. A rating count measures how much feedback a business has collected, not how well it roofs. Google Maps is not a census, so a firm that is not on Maps is not here. The city is where the business is registered, not where it works: several of these firms work the whole metro, and firms registered outside the county work inside it every day. Nothing here has been verified against a licence, a bond, an insurance certificate or a court record.
One listing appends a marketing claim to its Google business name. The trading name is printed below; the claim is not.
Top fifteen by weighted score
- 1Guaranteed Roofing & ContractingSt. Charles, MO 63303Rated 5280 ratingsWeighted 4.958
- 2Legions Exterior Pros -Roofing & SidingSt. Charles, MO 63301Rated 5152 ratingsWeighted 4.931
- 3Horizon Roofing & ExteriorsSt. Peters, MO 63376Rated 5129 ratingsWeighted 4.922
- 4LUCAS Construction and RoofingWentzville, MO 63385Rated 5127 ratingsWeighted 4.921
- 5KMAC RoofingSt. Peters, MO 63304Rated 577 ratingsWeighted 4.890
- 6RoofWorx - WentzvilleWentzville, MO 63385Rated 575 ratingsWeighted 4.889
- 7Brody Allen ExteriorsLake Saint Louis, MO 63367Rated 4.9511 ratingsWeighted 4.884
- 84 Corners ContractingSt. Charles, MO 63304Rated 569 ratingsWeighted 4.883
- 9Stonebridge RoofingWeldon Spring, MO 63304Rated 4.9401 ratingsWeighted 4.880
- 10Prrotect RoofingCottleville, MO 63304Rated 4.9382 ratingsWeighted 4.879
- 11Shamrock Roofing and ConstructionLake Saint Louis, MO 63367Rated 4.9317 ratingsWeighted 4.876
- 12Gateway General Contractors RoofingSt. Peters, MO 63304Rated 4.9295 ratingsWeighted 4.874
- 13Lookup Roofing LLCO'Fallon, MO 63366Rated 558 ratingsWeighted 4.871
- 14Donovan Roofing & ConstructionSt. Peters, MO 63376Rated 4.9242 ratingsWeighted 4.869
- 15Priority RoofingSt. Charles, MO 63301Rated 549 ratingsWeighted 4.859
Rated is the Google Maps star rating on the pull date. Ratings is the count behind it. Weighted is the shrunk score described above. The bar under each name draws the rating count to scale, on a square root scale so that the largest count does not flatten everything else to nothing.
The whole register
Ranks 16 to 81 follow. The order below is the same weighted order. Read it as a directory with an ordering, not as a verdict.
| # | Business name on the listing | Registered in | Rating | Ratings | Weighted |
|---|---|---|---|---|---|
| 1 | Guaranteed Roofing & Contracting | St. Charles | 5 | 280 | 4.958 |
| 2 | Legions Exterior Pros -Roofing & Siding | St. Charles | 5 | 152 | 4.931 |
| 3 | Horizon Roofing & Exteriors | St. Peters | 5 | 129 | 4.922 |
| 4 | LUCAS Construction and Roofing | Wentzville | 5 | 127 | 4.921 |
| 5 | KMAC Roofing | St. Peters | 5 | 77 | 4.890 |
| 6 | RoofWorx - Wentzville | Wentzville | 5 | 75 | 4.889 |
| 7 | Brody Allen Exteriors | Lake Saint Louis | 4.9 | 511 | 4.884 |
| 8 | 4 Corners Contracting | St. Charles | 5 | 69 | 4.883 |
| 9 | Stonebridge Roofing | Weldon Spring | 4.9 | 401 | 4.880 |
| 10 | Prrotect Roofing | Cottleville | 4.9 | 382 | 4.879 |
| 11 | Shamrock Roofing and Construction | Lake Saint Louis | 4.9 | 317 | 4.876 |
| 12 | Gateway General Contractors Roofing | St. Peters | 4.9 | 295 | 4.874 |
| 13 | Lookup Roofing LLC | O'Fallon | 5 | 58 | 4.871 |
| 14 | Donovan Roofing & Construction | St. Peters | 4.9 | 242 | 4.869 |
| 15 | Priority Roofing | St. Charles | 5 | 49 | 4.859 |
| 16 | Arrowhead Roofing & Exteriors | Weldon Spring | 4.9 | 163 | 4.858 |
| 17 | Hutchison roofing llc | St. Charles | 5 | 46 | 4.855 |
| 18 | Rhino Roofing and Exteriors | Wentzville | 5 | 46 | 4.855 |
| 19 | Roofing & Exterior PROS | St. Charles | 4.9 | 133 | 4.851 |
| 20 | JPA Roofing | Lake Saint Louis | 5 | 42 | 4.849 |
| 21 | Blue Ladder Roofing of St. Louis | Wentzville | 4.9 | 106 | 4.843 |
| 22 | Correll Roofing Co. | O'Fallon | 4.9 | 93 | 4.838 |
| 23 | Henry Family Roofing Company | Lake Saint Louis | 4.9 | 90 | 4.836 |
| 24 | Evolved Roofing & Construction | St. Charles | 5 | 32 | 4.830 |
| 25 | Brian Dawson Roofing | Wentzville | 4.9 | 71 | 4.826 |
| 26 | Home Comfort Exteriors | St. Peters | 4.9 | 68 | 4.824 |
| 27 | Your Professional Roofer | St. Charles | 4.9 | 66 | 4.823 |
| 28 | Tailored Exteriors | Dardenne Prairie | 4.9 | 64 | 4.822 |
| 29 | JB Exteriors, LLC | St. Charles | 4.9 | 60 | 4.819 |
| 30 | Phoenix Roofing Stl | St. Peters | 5 | 26 | 4.817 |
| 31 | DMW Roofing & General Contracting - Weldon Spring Office | St. Charles | 5 | 25 | 4.814 |
| 32 | Master Roofers of America | St. Charles | 4.9 | 42 | 4.803 |
| 33 | Affordable Exteriors | St. Peters | 4.9 | 40 | 4.801 |
| 34 | TNT Roofing LLC | St. Peters | 5 | 19 | 4.798 |
| 35 | County Roofing Company Inc. | St. Charles | 5 | 18 | 4.795 |
| 36 | Cardinal Contractors (Roofing) | St. Peters | 4.8 | 662 | 4.794 |
| 37 | Bone Dry Roofing | St. Peters | 4.8 | 645 | 4.794 |
| 38 | SCHNEIDER ROOFING & REMODELING | St. Charles | 4.8 | 444 | 4.792 |
| 39 | Archway Contractors | O'Fallon | 4.8 | 224 | 4.786 |
| 40 | Berry Construction Roofing & Storm Repair | O'Fallon | 4.8 | 219 | 4.785 |
| 41 | Second To None Exteriors | O'Fallon | 4.8 | 170 | 4.782 |
| 42 | Henry Family Roofing Company | St. Charles | 4.8 | 136 | 4.779 |
| 43 | Unlimited Roofing LLC | O'Fallon | 5 | 11 | 4.772 |
| 44 | Mighty Dog Roofing | St. Peters | 4.8 | 85 | 4.771 |
| 45 | Quality Roofing & Contracting - Roofing Company in O'Fallon | O'Fallon | 4.8 | 82 | 4.770 |
| 46 | CGR Legacy Construction | St. Charles | 5 | 9 | 4.764 |
| 47 | Auchly Roofing | O'Fallon | 4.8 | 31 | 4.752 |
| 48 | Wentzville Roofing | Wentzville | 5 | 6 | 4.751 |
| 49 | R & A Contracting | St. Peters | 4.9 | 10 | 4.751 |
| 50 | Allen Roofing & Siding | St. Peters | 4.9 | 10 | 4.751 |
| 51 | R-KREW Construction | Wentzville | 4.8 | 26 | 4.748 |
| 52 | RJR Roofing | St. Charles | 5 | 5 | 4.747 |
| 53 | O'Fallon Roofing Pros. | O'Fallon | 5 | 5 | 4.747 |
| 54 | Peak Roofing | Wentzville | 4.9 | 7 | 4.744 |
| 55 | Restore America | Wentzville | 5 | 3 | 4.737 |
| 56 | Huber Roofing | O'Fallon | 5 | 2 | 4.732 |
| 57 | Lake St. Louis Roofing Co. | Lake Saint Louis | 5 | 2 | 4.732 |
| 58 | SteveBaumstark roofingLLC | Wentzville | 5 | 1 | 4.727 |
| 59 | Allied Construction | Wentzville | 5 | 1 | 4.727 |
| 60 | National Network of Emergency Restoration Services | Wentzville | 5 | 1 | 4.727 |
| 61 | Eagle Exteriors | O'Fallon | 4.7 | 14 | 4.717 |
| 62 | Amigo Roofing and Contracting LLC | St. Peters | 4.7 | 26 | 4.714 |
| 63 | Jess' Residential Roofing | O'Fallon | 4.7 | 39 | 4.712 |
| 64 | Mapco Exteriors LLC | St. Peters | 4.7 | 53 | 4.711 |
| 65 | Bastin Roofing | O'Fallon | 4.7 | 66 | 4.709 |
| 66 | Crown Exteriors LLC | Dardenne Prairie | 4.7 | 268 | 4.703 |
| 67 | A & M Roofing & Construction Co | O'Fallon | 4.4 | 5 | 4.692 |
| 68 | Bedrock Construction | St. Peters | 4.6 | 16 | 4.692 |
| 69 | Atlas Home Solutions | St. Charles | 4.6 | 18 | 4.689 |
| 70 | Ambassador Roofing and Exteriors | St. Peters | 4.2 | 5 | 4.674 |
| 71 | Hawkeye Roofing & Restoration | O'Fallon | 4 | 4 | 4.668 |
| 72 | Gorilla Roofing St. Charles | St. Peters | 4.5 | 16 | 4.668 |
| 73 | Reroof America Contractors MO | O'Fallon | 3.7 | 3 | 4.664 |
| 74 | Shamrock Roofing Co. | St. Charles | 4.5 | 32 | 4.635 |
| 75 | Zykan eXteriors STL | St. Charles | 4.6 | 146 | 4.631 |
| 76 | EZ Home Solutions | St. Charles | 4.5 | 39 | 4.625 |
| 77 | Apple Roofing | St. Peters | 4.5 | 96 | 4.576 |
| 78 | Noble Roofing LLC | Wentzville | 4 | 20 | 4.515 |
| 79 | Crane Roofing | O'Fallon | 3.9 | 21 | 4.479 |
| 80 | His and Hers Roofing | St. Charles | 4.4 | 231 | 4.457 |
| 81 | Midtown Home Improvements | Wentzville | 4.2 | 1834 | 4.214 |
Source: Google Maps via a crawler pull, 2026-08-23. Category filter: exactly Roofing contractor. 81 rows. Figures were correct on the pull date and will drift.
Three things the register shows
The perfect scores are mostly small samples. 28 of the 81 rows hold a flat 5.0, and 15 of those 28 sit under thirty ratings. That is not an accusation, it is what small samples do. It does mean that reading the star number without the count will tell you almost nothing in this county.
The largest sample is near the bottom. The firm with by far the most ratings in the county, 1,834 of them, sits last on weighted score at 4.2. Volume and satisfaction are separate axes and this register keeps them separate.
Two municipalities carry half the county. St. Charles and St. Peters together hold 40 of the 81. Wentzville and O'Fallon hold 31 between them. The remaining ten are spread across four smaller municipalities.
Next sheet
Where the county's roofers are registeredOne road carries six of them. Eleven are registered at what look like homes.