11 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Fairmont: Window World of Fairmont, CR Score 62/100; 4.8★ from 113 Google reviews.
Best for emergencies (open 24/7): Residential & Commercial Service LLC, posts 24/7 hours; ranked #3 of 11.
Most-reviewed: The Window Source of Morgantown, 77 Google reviews at 4.9★, the most of 11 ranked after Window World of Fairmont; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
11 Fairmont window installers are ranked here by CR Score, from ten published factors. 2 are open 24/7, 6 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 11 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Window World of Fairmont | 62 | 4.8★ (113) | Fairmont | — | Overall |
| 2 | The Window Source of Morgantown | 60 | 4.9★ (77) | Morgantown, 13 mi away | — | Most reviews |
| 3 | Residential & Commercial Service LLC | 55 | 5.0★ (6) | McKeesport, 33 mi away | 24/7 | Emergencies |
| 4 | A&H Glass LLC | 55 | 4.9★ (12) | Morgantown, 12 mi away | — | — |
| 5 | AllPro Home Improvement | 54 | 4.9★ (46) | Fairmont | — | — |
| 6 | BluPeak Roof & Home | 51 | 5.0★ (3) | Clarksburg, 12 mi away | 24/7 | — |
| 7 | Duarte's Roofing LLC | 51 | 4.6★ (20) | Clarksburg, 17 mi away | Sat · Evenings | — |
| 8 | City Window & Construction Co | 50 | 4.0★ (5) | Clarksburg, 17 mi away | — | — |
| 9 | Monarch Windows and Doors | 50 | 4.7★ (15) | Uniontown, 37 mi away | Sat · Evenings | — |
| 10 | Mifflin Construction Co. | 49 | 4.4★ (15) | Monroeville, 33 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.8★ from 113 Google reviews, the most in Fairmont.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Morgantown, 13 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McKeesport, 33 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 on 8 of 10 factors; credentials and recency not yet collected.
Based in Morgantown, 12 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 12 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairmont
Ranked #5 because of its Google rating and review volume: 4.9★ from 46 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarksburg, 12 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarksburg, 17 mi away
Ranked #7 because of its Google rating and review volume: 4.6★ from 20 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarksburg, 17 mi away
Ranked #8 because of its Google rating and trade focus: 4.0★ from 5 Google reviews, listed on Google as “General contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Uniontown, 37 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Monroeville, 33 mi away
Ranked #10 because of its Google rating and review volume: 4.4★ from 15 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fox Chapel, 33 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for West Virginia 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 11 Fairmont 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 23, 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 Fairmont 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 |