17 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ottumwa: Grooms Roofing LLC., CR Score 87/100; 4.8★ from 57 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Millmiers Home Improvement, posts 24/7 hours; ranked #2 of 17.
Most-reviewed: Randall Roofing, 107 Google reviews at 4.9★, the most of 17 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Ottumwa roofers are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.7★ across 17 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Grooms Roofing LLC. | 87 | 4.8★ (57) | Ottumwa | Sat | Overall |
| 2 | Millmiers Home Improvement | 85 | 4.6★ (11) | Oskaloosa, 23 mi away | 24/7 | Emergencies |
| 3 | B&C ROOFING | 84 | 5.0★ (10) | Ottumwa | Sat · Sun · Evenings | — |
| 4 | Dearborn Becker Roofing | 83 | 4.0★ (8) | Ottumwa | — | — |
| 5 | Dempsey's Roofing and Solar Co. | 83 | 4.9★ (75) | Ottumwa | — | — |
| 6 | Figueroa Construction | 82 | 5.0★ (10) | Ottumwa | Sat | — |
| 7 | Kappel- Gomez Construction | 82 | 5.0★ (30) | Ottumwa | — | — |
| 8 | Bonilla Painting, Roofing and More | 80 | 5.0★ (5) | Ottumwa | Sat | — |
| 9 | Randall Roofing | 79 | 4.9★ (107) | Pella, 35 mi away | — | Most reviews |
| 10 | Haines Roofing | 78 | 5.0★ (3) | Ottumwa | Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 57 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oskaloosa, 23 mi away
Ranked #2 because of its Google rating and availability: 4.6★ from 11 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #3 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #4 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Roofing contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Ottumwa
Ranked #5 because of its Google rating and trade focus: 4.9★ from 75 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #6 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #7 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #8 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pella, 35 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 107 Google reviews, the most Google reviews on this list (107).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottumwa
Ranked #10 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Centerville, 31 mi away
Ranked #11 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “Roofing contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Fairfield, 23 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pella, 38 mi away
Ranked #13 because of its Google rating and trade focus: 4.5★ from 69 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Centerville, 32 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oskaloosa, 23 mi away
Ranked #15 because of its Google rating and trade focus: 4.0★ from 3 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fairfield, 25 mi away
Ranked #16 because of its Google rating and trade focus: 3.9★ from 20 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pella, 38 mi away
Ranked #17 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
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.
| Business | Google rating | Distance |
|---|---|---|
| BOITNOTT WATERPROOFING & ANCHORED WALLS | In Ottumwa | |
| Christner Contracting Inc | 4.8★ (22) | In Ottumwa |
| Frase Company, Inc. | 4.3★ (11) | In Ottumwa |
| G10 Painting Services | 5.0★ (38) | In Ottumwa |
| Hyline Construction LLC | In Ottumwa | |
| J&D Marquez Construction LLC | In Ottumwa | |
| Jim Haines Contracting | 5.0★ (1) | In Ottumwa |
| Just Josh Home Improvement | 4.0★ (6) | In Ottumwa |
| Korys Konstruction | 1.0★ (1) | In Ottumwa |
| L&G Construction Services LLC | 5.0★ (35) | In Ottumwa |
| M&M Outdoor Services LLC | 5.0★ (34) | In Ottumwa |
| Martinez Construction, LLC | 5.0★ (1) | In Ottumwa |
| Miller Quality Construction | 5.0★ (1) | In Ottumwa |
| Parker Tree & Excavation Services LLC | 4.2★ (24) | In Ottumwa |
| Rubel Roofing Co | In Ottumwa | |
| Saylor Construction | In Ottumwa | |
| SERVPRO of Ottumwa / Oskaloosa | 4.6★ (82) | In Ottumwa |
| Tip Top Roofing | In Ottumwa | |
| Top Dog Construction | 5.0★ (1) | In Ottumwa |
| Wadhams construction and repairs | 5.0★ (1) | In Ottumwa |
Typical prices in USD: adjusted for Iowa where a published index exists, national otherwise. Each row names its basis.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Roof replacement | $7,220 | $9,630 | $13,480 | Per project: asphalt shingles on a 1,700 sq ft home (about 2,000 sq ft of roof). US national range × 0.96 West 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 Iowa, roofers are busiest from late spring to early fall, when shingles can be installed in mild, dry weather. Spring and early-summer hailstorms in Iowa bring waves of insurance repair work. After a big storm, get more than one quote and check the license or registration before signing.
We scored 17 Ottumwa 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.
| Factor | Weight | Computed from | In Ottumwa data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |