157 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Westwood: HomeWorks Energy, CR Score 63/100; 4.7★ from 2,479 Google reviews; open 24/7.
Best for emergencies (open 24/7): Premium Insulation Svcs, Inc., posts 24/7 hours; ranked #12 of 157.
Most-reviewed: Power Home Remodeling, 4,159 Google reviews at 4.7★, the most of 157 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
157 Westwood insulation contractors are ranked here by CR Score, from ten published factors. 12 are open 24/7, 101 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.9★ across 157 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HomeWorks Energy | 63 | 4.7★ (2,479) | Arlington, 14 mi away | 24/7 | Overall |
| 2 | Advanced Green Insulation | 59 | 5.0★ (1,236) | Rockland, 17 mi away | Sat | — |
| 3 | EcoShield Pest Solutions | 59 | 4.8★ (3,069) | Winchester, 18 mi away | Sat | — |
| 4 | Colt Home Services | 57 | 5.0★ (278) | Waltham, 11 mi away | Evenings | — |
| 5 | Neeeco | 56 | 5.0★ (93) | Brockton, 14 mi away | Sat · Evenings | — |
| 6 | US Spray Foam Insulation | 56 | 5.0★ (43) | Stoughton, 7 mi away | Sat | — |
| 7 | Mass Pro Insulation | 56 | 5.0★ (103) | Brockton, 14 mi away | Sat | — |
| 8 | Coleman Spray Foam | 56 | 5.0★ (35) | Norfolk, 8 mi away | Sat | — |
| 9 | Diamond Dorchester Insulation Inc. | 55 | 5.0★ (35) | Boston, 10 mi away | Sat · Evenings | — |
| 10 | Natick Advanced Insulation Services | 55 | 4.9★ (32) | Natick, 8 mi away | Sat · Evenings | — |
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: 4.7★ from 2,479 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockland, 17 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 1,236 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Winchester, 18 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 3,069 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waltham, 11 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 278 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brockton, 14 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stoughton, 7 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brockton, 14 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk, 8 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 10 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Natick, 8 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Everett, 17 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 9 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Abington, 15 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookline, 11 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waltham, 11 mi away
Ranked #15 because of its Google rating and review volume: 4.7★ from 4,159 Google reviews, the most in Westwood.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Abington, 15 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Raynham, 18 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 95 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stoughton, 9 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 18 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 333 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookline, 7 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Franklin, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holliston, 12 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 7 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 10 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockland, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 63 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 157 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. A. Arden LLC | 3.0★ (2) | 22 mi |
| Bailey's Weatherization | 5.0★ (2) | 13 mi |
| Bay State Insulation | 5.0★ (2) | 12 mi |
| Brothers Painting | 5.0★ (2) | 11 mi |
| DENG'S Attic Insulation & Roofing Services Inc, MA | 1.0★ (2) | 21 mi |
| Greenstar insulation | 5.0★ (1) | 3 mi |
| Greenstar Spray foam | 5.0★ (2) | 18 mi |
| HomeCore, LLC | 5.0★ (1) | 6 mi |
| HomeWorks Energy | 1.0★ (2) | 19 mi |
| I&W Insulation | 1.0★ (2) | 22 mi |
| Insupro Attic Insulation of Boston | 5.0★ (2) | 15 mi |
| Lundey Inc | 3.0★ (2) | 19 mi |
| Mechanical Insulation Design & Construction (MIDCO) | 3.0★ (2) | 4 mi |
| Priority Wall Systems | In Westwood | |
| Revise Inc. | 3.0★ (2) | 19 mi |
| S.G Plastering | 5.0★ (2) | 23 mi |
| Ward Two Electrical Repair | 5.0★ (2) | 13 mi |
| Y&J Attic Insulation Services & Roofing Services Of Newton, MA | 2.5★ (2) | 8 mi |
| ZND-JACK Attic-Solution & Insulation's & Roofing Service Acton, MA | 5.0★ (2) | 20 mi |
| ZND-SAL Attic-Solution & Insulation's & Roofing Service Watertown, MA | 5.0★ (2) | 11 mi |
National price ranges in USD, not adjusted for Westwood. 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 157 Westwood 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 Westwood 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 |