66 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in James Island: Coastal Siding & Windows, CR Score 87/100; 4.5★ from 41 Google reviews; open 24/7.
Best for emergencies (open 24/7): Southern Industries Home Improvements, posts 24/7 hours; ranked #5 of 66.
Most-reviewed: West Shore Home, 1,162 Google reviews at 4.8★, the most of 66 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
66 James Island window installers are ranked here by CR Score, from 8 published factors. 9 are open 24/7, 31 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.9★ across 66 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Coastal Siding & Windows | 87 | 4.5★ (41) | Charleston, 5 mi away | 24/7 | Overall |
| 2 | KJM Glass | 87 | 5.0★ (58) | Goose Creek, 7 mi away | — | — |
| 3 | Window Ninjas Charleston | 86 | 4.9★ (517) | North Charleston, 10 mi away | Sat · Sun | — |
| 4 | Top Tier Gutters & Windows | 85 | 4.9★ (413) | North Charleston, 15 mi away | Sat | — |
| 5 | Southern Industries Home Improvements | 85 | 4.7★ (698) | North Charleston, 15 mi away | 24/7 | Emergencies |
| 6 | Transform Charleston Roofing, Siding & Gutters | 84 | 5.0★ (112) | Charleston, 10 mi away | 24/7 | — |
| 7 | Ketchum Roofing & Windows | 84 | 5.0★ (235) | Charleston, 17 mi away | 24/7 | — |
| 8 | Window Genie of Charleston Coastal | 84 | 5.0★ (79) | Mount Pleasant, 4 mi away | Sat · Sun · Evenings | — |
| 9 | Charleston Handyman | 83 | 4.0★ (4) | Charleston, 1 mi away | 24/7 | — |
| 10 | West Shore Home | 82 | 4.8★ (1,162) | Ladson, 18 mi away | Sat · Sun · Evenings | Most reviews |
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 availability: 4.5★ from 41 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Goose Creek, 7 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 58 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in North Charleston, 10 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 517 Google reviews, 517 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 15 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 15 mi away
Ranked #5 because of its Google rating and availability: 4.7★ from 698 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 10 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 112 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 17 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 235 Google reviews, 235 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mount Pleasant, 4 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 79 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 1 mi away
Ranked #9 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ladson, 18 mi away
Ranked #10 because of its Google rating and review volume: 4.8★ from 1,162 Google reviews, the most Google reviews on this list (1,162).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 157 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 6 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 32 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 12 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 42 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Summerville, 24 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 83 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 5 mi away
Ranked #15 because of its Google rating and review volume: 4.7★ from 282 Google reviews, 282 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Summerville, 23 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 559 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 11 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 12 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 6 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mount Pleasant, 7 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Gutter cleaning service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 13 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 605 Google reviews, 605 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 11 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 142 Google reviews, 142 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charleston, 13 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ 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 Summerville, 24 mi away
Ranked #24 because of its Google rating and availability: 4.8★ from 128 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Charleston, 9 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 38 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 66 James Island 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 James Island 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 |