147 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Dover: Portland Glass of Dover, CR Score 84/100; 4.8★ from 147 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): The Right Moves LLC, posts 24/7 hours; ranked #3 of 147.
Most-reviewed: Renewal by Andersen Window Replacement, 1,057 Google reviews at 4.8★, the most of 147 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
147 Dover window installers are ranked here by CR Score, from 8 published factors. 9 are open 24/7, 77 open Saturdays and 30 open Sundays, based on posted hours. The median Google rating is 4.8★ across 147 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Portland Glass of Dover | 84 | 4.8★ (147) | Dover | Sat | Overall |
| 2 | Glass Routes Co | 83 | 4.9★ (85) | Barrington, 3 mi away | Sat | — |
| 3 | The Right Moves LLC | 82 | 3.7★ (3) | Carney, 8 mi away | 24/7 | Emergencies |
| 4 | The Window Doctor | 82 | 4.9★ (27) | Eliot, 15 mi away | — | — |
| 5 | Portland Glass of Portsmouth | 82 | 4.7★ (159) | Portsmouth, 12 mi away | Sat | — |
| 6 | Rite Window of New Hampshire | 82 | 4.7★ (80) | Suncook, 29 mi away | Sat · Sun | — |
| 7 | Portland Glass of Springvale & Sanford | 81 | 4.9★ (115) | Sanford, 18 mi away | Sat | — |
| 8 | Universal Windows Direct of Manchester | 81 | 4.9★ (287) | Manchester, 31 mi away | Sat · Sun · Evenings | — |
| 9 | Fiori Construction LLC | 81 | 5.0★ (194) | Londonderry, 36 mi away | 24/7 | — |
| 10 | B's Roofing & Construction LLC | 81 | 5.0★ (46) | Sanford, 17 mi away | 24/7 | — |
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: 4.8★ 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 Barrington, 3 mi away
Ranked #2 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 Carney, 8 mi away
Ranked #3 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 Eliot, 15 mi away
Ranked #4 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 Portsmouth, 12 mi away
Ranked #5 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 Suncook, 29 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 80 Google reviews, listed on Google as “Window installation service”.
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 Manchester, 31 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 287 Google reviews, 287 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Londonderry, 36 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 194 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sanford, 17 mi away
Ranked #10 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 Biddeford, 29 mi away
Ranked #11 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 Eliot, 8 mi away
Ranked #12 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 Andover, 31 mi away
Ranked #13 because of its Google rating and availability: 3.9★ from 11 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Saco, 31 mi away
Ranked #14 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 Auburn, 29 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portsmouth, 12 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haverhill, 32 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 49 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Franklin, 38 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 69 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beverly, 37 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bedford, 40 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 48 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manchester, 31 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 136 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Andover, 39 mi away
Ranked #22 because of its Google rating and trade focus: 4.5★ 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 Manchester, 31 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 228 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Barrington, 40 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ 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 Manchester, 33 mi away
Ranked #25 because of its Google rating and availability: 4.8★ from 153 Google reviews, open 7 days a week.
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 147 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 |
|---|---|---|
| All Time Builders, LLC | 5.0★ (1) | 39 mi |
| Beaver Building Inc | 1.0★ (1) | 40 mi |
| Budget Exteriors - Siding, Windows, Doors, Gutters | 3.0★ (2) | 37 mi |
| Cazco Home Improvement, LLC | 5.0★ (1) | 18 mi |
| Dually Works Windows & Doors | 5.0★ (2) | 39 mi |
| FIRST LIGHT CUSTOM HOMES LLC | 5.0★ (2) | 23 mi |
| Four Seasons Sunrooms | In Dover | |
| J.M Dobson | 5.0★ (1) | 27 mi |
| Lambrou Timothy | 5.0★ (1) | 34 mi |
| Local painters D.A.D.S. Painting & Siding | 3.0★ (2) | 40 mi |
| Malinowski Construction | 4.0★ (1) | 33 mi |
| Nobleport Roofing and Restoration | 5.0★ (1) | 30 mi |
| Pro-United, Inc | 5.0★ (2) | 11 mi |
| Ron Allen Building & Remodeling | 5.0★ (1) | 37 mi |
| Sjaskolka Builders LLC | 5.0★ (1) | 33 mi |
| Solarize Window Insulators | 5.0★ (1) | 23 mi |
| Spagna Remodeling Co., LLC | 5.0★ (1) | 15 mi |
| Stephen Rothwell Home Improvement | 5.0★ (1) | 28 mi |
| Wild Woods Carpentry & Building | 5.0★ (1) | 16 mi |
| Zhumas Construction | 5.0★ (2) | 38 mi |
Typical prices in USD, adjusted for New Hampshire 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 147 Dover 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 Dover 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 |