47 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bath: Portland Glass of Brunswick, CR Score 62/100; 4.8★ from 213 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): A Plus Windows, posts 24/7 hours; ranked #3 of 47.
Most-reviewed: Portland Glass of Portland, 341 Google reviews at 4.7★, the most of 47 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
47 Bath window installers are ranked here by CR Score, from ten published factors. 2 are open 24/7, 25 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.8★ across 47 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Portland Glass of Brunswick | 62 | 4.8★ (213) | Brunswick, 4 mi away | Sat | Overall |
| 2 | Portland Glass of Portland | 59 | 4.7★ (341) | Portland, 29 mi away | Sat | Most reviews |
| 3 | A Plus Windows | 59 | 5.0★ (169) | South Berwick, 26 mi away | 24/7 | Emergencies |
| 4 | Portland Glass of Augusta | 58 | 4.8★ (132) | Augusta, 28 mi away | Sat | — |
| 5 | Portland Glass of Lewiston | 58 | 4.6★ (134) | Lewiston, 22 mi away | Sat | — |
| 6 | Regal Replacement Windows | 57 | 4.9★ (40) | Portland, 28 mi away | Sat · Sun · Evenings | — |
| 7 | Portland Glass of Raymond | 55 | 4.8★ (145) | Gorham, 32 mi away | — | — |
| 8 | Maine Windows and Doors | 55 | 3.9★ (25) | Portland, 29 mi away | 24/7 | — |
| 9 | Window World of Southern Maine | 55 | 4.4★ (123) | Westbrook, 33 mi away | Sat | — |
| 10 | James & Whitney Co. - Chelsea | 54 | 4.8★ (337) | Auburn, 26 mi away | Sat · Evenings | — |
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: 4.8★ from 213 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 29 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 341 Google reviews, the most in Bath.
Based in South Berwick, 26 mi away
Ranked #3 because of its Google rating and review volume: 5.0★ from 169 Google reviews.
Based in Augusta, 28 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 132 Google reviews, listed on Google as “Window installation service”.
Based in Lewiston, 22 mi away
Ranked #5 because of its Google rating and trade focus: 4.6★ from 134 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 28 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Window installation service”.
Based in Gorham, 32 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 145 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 29 mi away
Ranked #8 because of its Google rating and trade focus: 3.9★ from 25 Google reviews, listed on Google as “Window installation service”.
Based in Westbrook, 33 mi away
Ranked #9 because of its Google rating and trade focus: 4.4★ from 123 Google reviews, listed on Google as “Window installation service”.
Based in Auburn, 26 mi away
Ranked #10 because of its Google rating and review volume: 4.8★ from 337 Google reviews.
Based in South Portland, 30 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 91 Google reviews, listed on Google as “Window installation service”.
Based in Gorham, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Window installation service”.
Based in Lewiston, 22 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 30 Google reviews, listed on Google as “Window installation service”.
Based in South Portland, 28 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 222 Google reviews.
Based in Waterville, 13 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 27 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 69 Google reviews.
Based in Rockland, 39 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “Window installation service”.
Based in Auburn, 16 mi away
Ranked #18 because of its Google rating and trade focus: 2.6★ from 10 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 30 mi away
Ranked #19 because of its Google rating and review volume: 4.7★ from 186 Google reviews.
Based in Brunswick, 6 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 57 Google reviews.
Based in Auburn, 24 mi away
Ranked #21 because of its Google rating and review volume: 4.7★ from 274 Google reviews.
Based in Rockland, 37 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Window installation service”.
Based in Buxton, 33 mi away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Window installation service”.
Based in Gorham, 30 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Window installation service”.
Based in Portland, 29 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 72 Google reviews.
#1 to #25 are shown in full above. Here are #26 to #47, in CR Score order; each links to its profile.
20 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 |
|---|---|---|
| 207 Windows | 21 mi | |
| 3rd Generation Carpentry | 29 mi | |
| All Time Builders, LLC | 5.0★ (1) | 34 mi |
| Beaver Building Inc | 1.0★ (1) | 32 mi |
| Clean Cut Building and Remodeling, LLC | 24 mi | |
| Davison Construction, Inc | 5.0★ (2) | In Bath |
| East Coast Woodworking Inc | 3.7★ (3) | In Bath |
| Everlast General Services | 5.0★ (1) | 34 mi |
| Four Seasons Sunrooms | 1.0★ (1) | 8 mi |
| Frohmiller Construction Inc | 4.9★ (9) | In Bath |
| Hewitt's Handyman Service | 28 mi | |
| John Libby Construction, Inc. | 4.3★ (16) | In Bath |
| Knickerbocker Group | 4.7★ (6) | In Bath |
| Long Reach Painting Company | 5.0★ (2) | In Bath |
| Mainely Painting | 5.0★ (14) | In Bath |
| Northeast Trade Services | 5.0★ (2) | In Bath |
| Pisgah Window Solutions, LLC | 1.0★ (1) | 34 mi |
| Pro Installation Owner | 5.0★ (1) | In Bath |
| Robert Ormsby & Sons | 14 mi | |
| SeaviewBuilders | 5.0★ (1) | 31 mi |
Typical prices in USD, adjusted for Maine with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,410 | $7,300 | $11,760 | Per project (several windows): typical range of customer-reported projects. US national range × 0.99 New England factor (2025 Cost vs. Value Report) | October 2026 |
We scored 47 Bath 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 Bath 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 |