62 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Saco: Portland Glass of Biddeford, CR Score 85/100; 4.9★ from 181 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): A Plus Windows, posts 24/7 hours; ranked #4 of 62.
Most-reviewed: Renewal by Andersen Window Replacement, 1,057 Google reviews at 4.8★, the most of 62 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
62 Saco window installers are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 35 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.8★ across 62 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Portland Glass of Biddeford | 85 | 4.9★ (181) | Biddeford, 1 mi away | Sat | Overall |
| 2 | Renewal by Andersen Window Replacement | 85 | 4.8★ (1,057) | Saco | — | Most reviews |
| 3 | Regal Replacement Windows | 84 | 4.9★ (40) | Portland, 15 mi away | Sat · Sun · Evenings | — |
| 4 | A Plus Windows | 83 | 5.0★ (169) | South Berwick, 36 mi away | 24/7 | Emergencies |
| 5 | Portland Glass of Portland | 83 | 4.7★ (341) | Portland, 14 mi away | Sat | — |
| 6 | Maine Windows and Doors | 83 | 3.9★ (25) | Portland, 15 mi away | 24/7 | — |
| 7 | Portland Glass of Springvale & Sanford | 82 | 4.9★ (115) | Sanford, 18 mi away | Sat | — |
| 8 | B's Roofing & Construction LLC | 81 | 5.0★ (46) | Sanford, 16 mi away | 24/7 | — |
| 9 | The Right Moves LLC | 79 | 3.7★ (3) | Carney, 25 mi away | 24/7 | — |
| 10 | Portland Glass of Dover | 79 | 4.8★ (147) | Dover, 29 mi away | Sat | — |
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 trade focus: 4.9★ from 181 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Saco
Ranked #2 because of its Google rating and review volume: 4.8★ from 1,057 Google reviews, the most Google reviews on this list (1,057).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 15 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Berwick, 36 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 169 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 341 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 15 mi away
Ranked #6 because of its Google rating and availability: 3.9★ from 25 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sanford, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sanford, 16 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 46 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Carney, 25 mi away
Ranked #9 because of its Google rating and availability: 3.7★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dover, 29 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 147 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Westbrook, 11 mi away
Ranked #11 because of its Google rating and trade focus: 4.4★ from 123 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brunswick, 39 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 213 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Biddeford, 2 mi away
Ranked #13 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Barrington, 33 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 16 mi away
Ranked #15 because of its Google rating and availability: 4.9★ from 69 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portsmouth, 37 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 159 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eliot, 40 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Saco
Ranked #18 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Portland, 14 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 222 Google reviews, 222 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buxton, 9 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buxton, 3 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eliot, 29 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 20 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Portland, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 91 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gorham, 27 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 145 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 14 mi away
Ranked #25 because of its Google rating and review volume: 4.7★ from 186 Google reviews, 186 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 62 ranked window installers here; the rest are on their profiles.
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 | 23 mi | |
| 3 Day Blinds | 3 mi | |
| All Time Builders, LLC | 5.0★ (1) | 9 mi |
| Beaver Building Inc | 1.0★ (1) | 10 mi |
| Cazco Home Improvement, LLC | 5.0★ (1) | 12 mi |
| CC Carpentry & Woodwork | 7 mi | |
| Chretien Construction Inc | 1.0★ (35) | In Saco |
| FIRST LIGHT CUSTOM HOMES LLC | 5.0★ (2) | 24 mi |
| Four Seasons Sunrooms | 1.0★ (1) | 38 mi |
| Hewitt's Handyman Service | 22 mi | |
| Home Improvement | 3.4★ (5) | In Saco |
| Pro-United, Inc | 5.0★ (2) | 37 mi |
| Reliable Roofing Co. | 5.0★ (11) | In Saco |
| Ron Husser *Residential Services* | 5.0★ (7) | In Saco |
| Sears Heating and Air Conditioning | 2 mi | |
| SeaviewBuilders | 5.0★ (1) | 12 mi |
| Solarize Window Insulators | 5.0★ (1) | 8 mi |
| Summit Home Solutions LLC | 4.8★ (19) | In Saco |
| Universal Designz | 11 mi | |
| Window Technicians | 6 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 62 Saco 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 Saco 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 |