335 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Merrimack: 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): New England Painting & Contracting, posts 24/7 hours; ranked #8 of 335.
Most-reviewed: Power Home Remodeling, 4,159 Google reviews at 4.7★, the most of 335 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
335 Merrimack window installers are ranked here by CR Score, from ten published factors. 26 are open 24/7, 196 open Saturdays and 68 open Sundays, based on posted hours. The median Google rating is 4.9★ across 335 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, 36 mi away | Sat · Sun | Overall |
| 2 | Portland Glass of Nashua | 59 | 4.9★ (495) | Nashua, 5 mi away | — | — |
| 3 | Power Home Remodeling | 58 | 4.7★ (4,159) | Waltham, 36 mi away | Sat · Evenings | Most reviews |
| 4 | Universal Windows Direct of Manchester | 57 | 4.9★ (287) | Manchester, 9 mi away | Sat · Sun · Evenings | — |
| 5 | Affordable Vinyl Windows & Siding Inc | 57 | 4.9★ (100) | Auburn, 11 mi away | Sat | — |
| 6 | Rite Window of Massachusetts | 57 | 4.5★ (704) | Woburn, 30 mi away | Sat · Sun | — |
| 7 | Rite Window of New Hampshire | 57 | 4.7★ (80) | Suncook, 18 mi away | Sat · Sun | — |
| 8 | New England Painting & Contracting | 57 | 5.0★ (65) | Arlington, 34 mi away | 24/7 | Emergencies |
| 9 | Fiori Construction LLC | 57 | 5.0★ (194) | Londonderry, 8 mi away | 24/7 | — |
| 10 | Dracut Window & Door | 57 | 4.9★ (108) | Dracut, 16 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 Nashua, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 495 Google reviews, listed on Google as “Window installation service”.
Based in Waltham, 36 mi away
Ranked #3 because of its Google rating and review volume: 4.7★ from 4,159 Google reviews, the most in Merrimack.
Based in Manchester, 9 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 287 Google reviews, listed on Google as “Roofing contractor”.
Based in Auburn, 11 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 Woburn, 30 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 704 Google reviews, listed on Google as “Window installation service”.
Based in Suncook, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.7★ from 80 Google reviews, listed on Google as “Window installation service”.
Based in Arlington, 34 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 Londonderry, 8 mi away
Ranked #9 because of its Google rating and review volume: 5.0★ from 194 Google reviews.
Based in Dracut, 16 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 Billerica, 29 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 260 Google reviews, listed on Google as “Gutter cleaning service”.
Based in Lowell, 17 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 Beverly, 38 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 933 Google reviews, listed on Google as “Window installation service”.
Based in Manchester, 12 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 228 Google reviews, listed on Google as “Window installation service”.
Based in Manchester, 9 mi away
Ranked #15 because of its Google rating and trade focus: 4.5★ from 136 Google reviews, listed on Google as “Window installation service”.
Based in Acton, 14 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Window installation service”.
Based in Methuen, 18 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 Framingham, 39 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 406 Google reviews.
Based in Haverhill, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.3★ from 21 Google reviews, listed on Google as “Window installation service”.
Based in Nashua, 6 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 56 Google reviews, open 24/7.
Based in Wilmington, 26 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 3,580 Google reviews.
Based in Woburn, 32 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 304 Google reviews, listed on Google as “Window installation service”.
Based in Acton, 35 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Window installation service”.
Based in Derry, 10 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 Chelmsford, 13 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 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 335 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 |
|---|---|---|
| 90 Degree Construction | 5.0★ (1) | 6 mi |
| Allen Window & Gutter Cleaning | 5.0★ (2) | 34 mi |
| Brothers Remodeling & Design, Inc. | 3.0★ (2) | 40 mi |
| Budget Exteriors - Siding, Windows, Doors, Gutters | 3.0★ (2) | 21 mi |
| Dually Works Windows & Doors | 5.0★ (2) | 15 mi |
| Elite Roofing and Siding Massachusetts | 1.0★ (2) | 18 mi |
| Fidelis Carpentry & Tile | Carpentry in Boston | 5.0★ (2) | 30 mi |
| Hamann Carpentry, LLC | 5.0★ (2) | 9 mi |
| Hill Construction | 5.0★ (2) | 27 mi |
| Lambrou Timothy | 5.0★ (1) | 9 mi |
| Leger Siding | 3.0★ (2) | 26 mi |
| Lemieux Construction & Remodeling Inc | 5.0★ (1) | 18 mi |
| Mf Construction | 5.0★ (2) | 28 mi |
| Nashoba Building & Remodeling | 3.0★ (2) | 21 mi |
| Pro-United, Inc | 5.0★ (2) | 36 mi |
| Ron Allen Building & Remodeling | 5.0★ (1) | In Merrimack |
| Sjaskolka Builders LLC | 5.0★ (1) | 8 mi |
| The Dutra Group Inc | 5.0★ (2) | 31 mi |
| Top Notch Remodeling | 5.0★ (2) | 9 mi |
| Wilmington Window and Door | 3.0★ (2) | 27 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 335 Merrimack 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 Merrimack 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 |