68 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Irmo: Champion Replacement Windows of Columbia, CR Score 92/100; 4.7★ from 1,484 Google reviews.
Best for emergencies (open 24/7): Premiere Roofing, posts 24/7 hours; ranked #2 of 68.
Most-reviewed: Crosby Roofing and Gutters, 1,096 Google reviews at 4.9★, the most of 68 ranked after Champion Replacement Windows of Columbia; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
68 Irmo window installers are ranked here by CR Score, from 8 published factors. 9 are open 24/7, 33 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.8★ across 68 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Champion Replacement Windows of Columbia | 92 | 4.7★ (1,484) | Columbia, 2 mi away | — | Overall |
| 2 | Premiere Roofing | 88 | 4.9★ (771) | Irmo | 24/7 | Emergencies |
| 3 | Crosby Roofing and Gutters | 88 | 4.9★ (1,096) | Lexington, 8 mi away | 24/7 | Most reviews |
| 4 | West Shore Home | 87 | 4.6★ (868) | Columbia, 13 mi away | Sat · Sun · Evenings | — |
| 5 | Indigo State Roofing | 85 | 4.9★ (131) | Irmo | 24/7 | — |
| 6 | Southern Industries Home Improvements | 85 | 4.6★ (562) | Columbia, 3 mi away | 24/7 | — |
| 7 | Stellar Roofing and Solar - South Carolina | 84 | 4.9★ (8) | Columbia, 10 mi away | 24/7 | — |
| 8 | Home Genius Exteriors | 84 | 4.8★ (36) | Columbia, 8 mi away | Sat · Sun · Evenings | — |
| 9 | CMS Roofing | 83 | 4.8★ (309) | Irmo | Sat · Sun | — |
| 10 | AAA Glass | 83 | 4.5★ (42) | Columbia, 10 mi away | Sat · 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 review volume: 4.7★ from 1,484 Google reviews, the most Google reviews on this list (1,484).
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Irmo
Ranked #2 because of its Google rating and availability: 4.9★ from 771 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lexington, 8 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 1,096 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 13 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 868 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Irmo
Ranked #5 because of its Google rating and availability: 4.9★ from 131 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 3 mi away
Ranked #6 because of its Google rating and availability: 4.6★ from 562 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 10 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 36 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Irmo
Ranked #9 because of its Google rating and review volume: 4.8★ from 309 Google reviews, 309 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 10 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 42 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 10 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 349 Google reviews, 349 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lexington, 8 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 277 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Irmo
Ranked #13 because of its Google rating and trade focus: 4.8★ from 320 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mauldin, 36 mi away
Ranked #14 because of its Google rating and availability: 4.9★ from 76 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lexington, 8 mi away
Ranked #15 because of its Google rating and trade focus: 4.4★ from 189 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cayce, 11 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 15 mi away
Ranked #17 because of its Google rating and trade focus: 4.0★ from 79 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 10 mi away
Ranked #18 because of its Google rating and trade focus: 4.5★ from 94 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 21 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 49 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 13 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 173 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 386 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Columbia, 6 mi away
Ranked #22 because of its Google rating and review volume: 4.8★ from 361 Google reviews, 361 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Goose Creek, 36 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 100 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cayce, 8 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 11 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cayce, 11 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 101 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for South Carolina with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,370 | $7,200 | $11,600 | Per project (several windows): typical range of customer-reported projects. US national range × 0.98 South Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 68 Irmo window installers 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 Irmo 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 |