13 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Charleston: Central Illinois Glass Cutters, CR Score 60/100; 4.9★ from 68 Google reviews.
Best for emergencies (open 24/7): RENAUD HOME SERVICES - Restorations - Repairs - Remodels - Carpentry - Cabinetry - Craftsmanship, posts 24/7 hours; ranked #3 of 13.
Most-reviewed: Roofs By Otto's, 99 Google reviews at 5.0★, the most of 13 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Charleston window installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 6 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 13 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Central Illinois Glass Cutters | 60 | 4.9★ (68) | Mattoon, 11 mi away | — | Overall |
| 2 | KAS Windows, LLC | 59 | 4.8★ (54) | Mattoon, 11 mi away | — | — |
| 3 | RENAUD HOME SERVICES - Restorations - Repairs - Remodels - Carpentry - Cabinetry - Craftsmanship | 57 | 5.0★ (6) | Washington, 16 mi away | 24/7 | Emergencies |
| 4 | Duncan Windows & Floors | 57 | 4.7★ (12) | Mattoon, 10 mi away | Sat | — |
| 5 | Roofs By Otto's | 55 | 5.0★ (99) | Douglas, 23 mi away | Sat | Most reviews |
| 6 | Redemption Roofing and Exteriors | 51 | 4.8★ (34) | Douglas, 15 mi away | — | — |
| 7 | Custom Classic Windows | 51 | 4.9★ (9) | Douglas, 21 mi away | Sat | — |
| 8 | C-U Under Construction | 49 | 4.5★ (95) | Champaign, 38 mi away | — | — |
| 9 | Tyner Roofing | 47 | 4.3★ (18) | Urbana, 31 mi away | Sat | — |
| 10 | Roofs By Rodger | 47 | 4.2★ (36) | Douglas, 28 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Window installation service”.
Based in Mattoon, 11 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “Window installation service”.
Based in Washington, 16 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Window installation service”.
Based in Mattoon, 10 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Window installation service”.
Based in Douglas, 23 mi away
Ranked #5 because of its Google rating and review volume: 5.0★ from 99 Google reviews, the most in Charleston.
Based in Douglas, 15 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 34 Google reviews.
Based in Douglas, 21 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 9 Google reviews, listed on Google as “Construction company”.
Based in Champaign, 38 mi away
Ranked #8 because of its Google rating and review volume: 4.5★ from 95 Google reviews.
Based in Urbana, 31 mi away
Ranked #9 because of its Google rating and review volume: 4.3★ from 18 Google reviews.
Based in Douglas, 28 mi away
Ranked #10 because of its Google rating and review volume: 4.2★ from 36 Google reviews.
Based in Douglas, 37 mi away
Ranked #11 because of its Google rating and review volume: 4.3★ from 15 Google reviews.
Based in Champaign, 38 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 15 Google reviews.
Based in Douglas, 35 mi away
Ranked #13 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Roofing contractor”.
13 more window installers 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 |
|---|---|---|
| Becker Construction | 20 mi | |
| Bushur Construction Co | 30 mi | |
| Central Roofing LLC | 5.0★ (2) | 33 mi |
| G&G Contracting Services, LLC | 5.0★ (1) | 17 mi |
| Ge Custom Window Well Covers | 5.0★ (2) | 17 mi |
| Herendeen Roofing & Restoration PLLC | 10 mi | |
| KBS Construction Building Services LLC | 17 mi | |
| Lucas Construction | 3.5★ (2) | 36 mi |
| Poorman & Son, LLC | 5.0★ (1) | 14 mi |
| Professional Windows Siding & Sunrooms | 33 mi | |
| Quality First Construction | 5.0★ (2) | 27 mi |
| Sears Heating and Air Conditioning | 32 mi | |
| Top Down Construction | 24 mi |
Typical prices in USD, adjusted for Illinois with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,430 | $7,340 | $11,830 | Per project (several windows): typical range of customer-reported projects. US national range × 1.00 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 13 Charleston window installers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Charleston data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |