53 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Merrimack: USA Insulation of Southern NH, CR Score 59/100; 4.6★ from 291 Google reviews; open Saturdays until 2 PM.
Best for emergencies (open 24/7): TH Finish Carpentry - Carpenter in Nashua, posts 24/7 hours; ranked #2 of 53.
Most-reviewed: Revise Inc., 805 Google reviews at 4.6★, the most of 53 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
53 Merrimack insulation contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 27 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.8★ across 53 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | USA Insulation of Southern NH | 59 | 4.6★ (291) | Manchester, 9 mi away | Sat | Overall |
| 2 | TH Finish Carpentry - Carpenter in Nashua | 58 | 5.0★ (12) | Nashua, 7 mi away | 24/7 | Emergencies |
| 3 | CJS Construction | 58 | 5.0★ (15) | Hudson, 3 mi away | Sat · Sun | — |
| 4 | Revise Inc. | 58 | 4.6★ (805) | Haverhill, 22 mi away | Sat | Most reviews |
| 5 | East Coast Drywall Services | 56 | 5.0★ (13) | Lebanon, 8 mi away | Sat · Sun · Evenings | — |
| 6 | Absolute Energy Solutions | 55 | 4.8★ (68) | Methuen, 17 mi away | Sat | — |
| 7 | A Plus Energy Services | 55 | 4.8★ (59) | Milford, 11 mi away | — | — |
| 8 | Mill City Energy | 54 | 5.0★ (16) | Auburn, 12 mi away | — | — |
| 9 | The Weatherize Guyz ,LLC | 54 | 4.9★ (38) | Auburn, 12 mi away | — | — |
| 10 | BCI Insulation | 54 | 5.0★ (46) | Grafton, 24 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.6★ from 291 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashua, 7 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 3 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Haverhill, 22 mi away
Ranked #4 because of its Google rating and review volume: 4.6★ from 805 Google reviews, the most in Merrimack.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 8 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Methuen, 17 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 68 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milford, 11 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 59 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 12 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Auburn, 12 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grafton, 24 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acton, 22 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 159 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lowell, 19 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 22 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Methuen, 18 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 108 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acton, 22 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lowell, 19 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lawrence, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 9 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Swimming pool contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Methuen, 17 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashua, 8 mi away
Ranked #20 because of its Google rating and review volume: 4.8★ from 211 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lawrence, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.6★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Haverhill, 21 mi away
Ranked #22 because of its Google rating and trade focus: 4.5★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Derry, 9 mi away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 21 Google reviews, listed on Google as “Painter”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bedford, 22 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 12 mi away
Ranked #25 because of its Google rating and trade focus: 3.5★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 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 53 ranked insulation contractors here; the rest are on their profiles.
20 more insulation contractors within 25 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 |
|---|---|---|
| A&Q Attic Insulation Services & Roofing Services Of Lawrence, MA | 5.0★ (1) | 20 mi |
| Amherst Insulation & Firestop | 5.0★ (1) | 6 mi |
| Buc's Lagoon | 8 mi | |
| Conde Roofing & Construction, LLC | 5.0★ (212) | In Merrimack |
| Damon Insulation Co | 5.0★ (1) | 19 mi |
| Das Trading Concept | 8 mi | |
| Done Right HVAC | 8 mi | |
| Foam Monsters | 5.0★ (1) | 15 mi |
| Fortin Building Systems Inc. | 5.0★ (2) | In Merrimack |
| InTech | 5.0★ (2) | 22 mi |
| Kj's Energy Savers LLC | 5.0★ (2) | 5 mi |
| Krempel Insulation Technologies LP | 5.0★ (1) | 17 mi |
| Maillet Property Management | 2.0★ (1) | 21 mi |
| Nashua Insulation | 7 mi | |
| Solergy llc | 5.0★ (2) | 6 mi |
| The Best Insulation Services | 2.0★ (1) | 24 mi |
| Thermo Dynamics | 5.0★ (1) | 20 mi |
| Valley Insulation Corp | 1.0★ (1) | 21 mi |
| Walker Restoration Contractors LLC | 5.0★ (1) | 5 mi |
| ZND-A&A Attic-Solution & Insulation's & Roofing Service Tewksbury, MA | 5.0★ (1) | 21 mi |
National price ranges in USD, not adjusted for Merrimack. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 53 Merrimack insulation contractors 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 |