354 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Londonderry: Renewal by Andersen of Boston, CR Score 60/100; 4.8★ from 3,420 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Fiori Construction LLC, posts 24/7 hours; ranked #4 of 354.
Most-reviewed: Power Home Remodeling, 4,159 Google reviews at 4.7★, the most of 354 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
354 Londonderry window installers are ranked here by CR Score, from ten published factors. 34 are open 24/7, 208 open Saturdays and 78 open Sundays, based on posted hours. The median Google rating is 4.9★ across 354 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Renewal by Andersen of Boston | 60 | 4.8★ (3,420) | Northborough, 38 mi away | Sat · Sun | Overall |
| 2 | Power Home Remodeling | 58 | 4.7★ (4,159) | Waltham, 34 mi away | Sat · Evenings | Most reviews |
| 3 | Portland Glass of Nashua | 58 | 4.9★ (495) | Nashua, 9 mi away | — | — |
| 4 | Fiori Construction LLC | 58 | 5.0★ (194) | Londonderry | 24/7 | Emergencies |
| 5 | Affordable Vinyl Windows & Siding Inc | 57 | 4.9★ (100) | Auburn, 10 mi away | Sat | — |
| 6 | Universal Windows Direct of Manchester | 57 | 4.9★ (287) | Manchester, 9 mi away | Sat · Sun · Evenings | — |
| 7 | Rite Window of Massachusetts | 57 | 4.5★ (704) | Woburn, 27 mi away | Sat · Sun | — |
| 8 | New England Painting & Contracting | 57 | 5.0★ (65) | Arlington, 30 mi away | 24/7 | — |
| 9 | Coastal Windows & Exteriors | 57 | 4.8★ (933) | Beverly, 33 mi away | Sat · Evenings | — |
| 10 | Dracut Window & Door | 57 | 4.9★ (108) | Dracut, 14 mi away | Sat | — |
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 3,420 Google reviews, listed on Google as “Window installation service”.
Based in Waltham, 34 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 4,159 Google reviews, the most in Londonderry.
Based in Nashua, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 495 Google reviews, listed on Google as “Window installation service”.
Based in Londonderry
Ranked #4 because of its Google rating and review volume: 5.0★ from 194 Google reviews.
Based in Auburn, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Window installation service”.
Based in Manchester, 9 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 287 Google reviews, listed on Google as “Roofing contractor”.
Based in Woburn, 27 mi away
Ranked #7 because of its Google rating and trade focus: 4.5★ from 704 Google reviews, listed on Google as “Window installation service”.
Based in Arlington, 30 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Window installation service”.
Based in Beverly, 33 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 933 Google reviews, listed on Google as “Window installation service”.
Based in Dracut, 14 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 108 Google reviews, listed on Google as “Window installation service”.
Based in Suncook, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 80 Google reviews, listed on Google as “Window installation service”.
Based in Lowell, 15 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Gutter cleaning service”.
Based in Billerica, 28 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 260 Google reviews, listed on Google as “Gutter cleaning service”.
Based in Acton, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Window installation service”.
Based in Manchester, 12 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 228 Google reviews, listed on Google as “Window installation service”.
Based in Boston, 38 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Window installation service”.
Based in Methuen, 14 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 191 Google reviews, listed on Google as “Window installation service”.
Based in Manchester, 8 mi away
Ranked #18 because of its Google rating and trade focus: 4.5★ from 136 Google reviews, listed on Google as “Window installation service”.
Based in Burlington, 28 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 746 Google reviews, listed on Google as “Window installation service”.
Based in Framingham, 40 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 406 Google reviews.
Based in Acton, 37 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 117 Google reviews, listed on Google as “Window installation service”.
Based in Wilmington, 22 mi away
Ranked #22 because of its Google rating and review volume: 4.9★ from 3,580 Google reviews.
Based in Lawrence, 15 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 65 Google reviews, listed on Google as “Window installation service”.
Based in Derry, 4 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window installation service”.
Based in Woburn, 29 mi away
Ranked #25 because of its Google rating and trade focus: 4.6★ from 304 Google reviews, listed on Google as “Window installation service”.
#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 354 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 |
|---|---|---|
| Allen Window & Gutter Cleaning | 5.0★ (2) | 33 mi |
| Apple Wood Construction, Inc | In Londonderry | |
| Budget Exteriors - Siding, Windows, Doors, Gutters | 3.0★ (2) | 16 mi |
| Crossroads Contracting | 4.9★ (65) | In Londonderry |
| Daniel Harvey Construction | 5.0★ (2) | 36 mi |
| Dually Works Windows & Doors | 5.0★ (2) | 11 mi |
| Elite Roofing and Siding Massachusetts | 1.0★ (2) | 16 mi |
| Fidelis Carpentry & Tile | Carpentry in Boston | 5.0★ (2) | 27 mi |
| Hamann Carpentry, LLC | 5.0★ (2) | 14 mi |
| Hill Construction | 5.0★ (2) | 24 mi |
| Leger Siding | 3.0★ (2) | 30 mi |
| Mf Construction | 5.0★ (2) | 31 mi |
| Nashoba Building & Remodeling | 3.0★ (2) | 20 mi |
| New England Home Pros | 4.8★ (20) | In Londonderry |
| Precision Door Service | 4.9★ (426) | In Londonderry |
| Pro-United, Inc | 5.0★ (2) | 30 mi |
| The Dutra Group Inc | 5.0★ (2) | 28 mi |
| Top Notch Remodeling | 5.0★ (2) | 8 mi |
| Wilmington Window and Door | 3.0★ (2) | 24 mi |
| Window Authority | In Londonderry |
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 354 Londonderry 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 Londonderry 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 |