55 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Portsmouth: L&B Remodeling Co. Inc., CR Score 62/100; 5.0★ from 56 Google reviews; open 24/7.
Best for emergencies (open 24/7): WeatherTek Insulation LLC, posts 24/7 hours; ranked #7 of 55.
Most-reviewed: NetZero Insulation Technologies, 260 Google reviews at 5.0★, the most of 55 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
55 Portsmouth insulation contractors are ranked here by CR Score, from ten published factors. 3 are open 24/7, 26 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.9★ across 55 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | L&B Remodeling Co. Inc. | 62 | 5.0★ (56) | Seekonk, 13 mi away | 24/7 | Overall |
| 2 | NetZero Insulation Technologies | 60 | 5.0★ (260) | Seekonk, 13 mi away | — | Most reviews |
| 3 | A.F.T. Insulation | 59 | 4.9★ (48) | Fall River, 7 mi away | Sat · Evenings | — |
| 4 | Alternative Weatherization Inc | 59 | 4.9★ (80) | Fall River, 7 mi away | — | — |
| 5 | Precision Spray Foam Insulation Warwick | 58 | 4.7★ (36) | Seekonk, 13 mi away | Sat · Sun · Evenings | — |
| 6 | A2Z Energy Solutions | 58 | 5.0★ (41) | Berkley, 17 mi away | Sat · Sun | — |
| 7 | WeatherTek Insulation LLC | 58 | 4.4★ (32) | Coventry, 16 mi away | 24/7 | Emergencies |
| 8 | Efficient Buildings INC | 58 | 4.9★ (99) | Acushnet, 12 mi away | — | — |
| 9 | 5C Energy, Inc. | 58 | 4.9★ (115) | Attleboro, 21 mi away | Sat | — |
| 10 | Southern Mass Spray Foam Inc. | 57 | 4.9★ (33) | New Bedford, 17 mi away | Sat · Sun · 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: 5.0★ from 56 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seekonk, 13 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 260 Google reviews, the most in Portsmouth.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fall River, 7 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fall River, 7 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seekonk, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Berkley, 17 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coventry, 16 mi away
Ranked #7 because of its Google rating and trade focus: 4.4★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acushnet, 12 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 99 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Attleboro, 21 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Bedford, 17 mi away
Ranked #10 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 Pawtucket, 20 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Providence, 15 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Berkley, 17 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 74 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fall River, 9 mi away
Ranked #14 because of its Google rating and trade focus: 4.5★ 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 Fall River, 9 mi away
Ranked #15 because of its Google rating and trade focus: 4.6★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Taunton, 22 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tiverton, 6 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Bedford, 17 mi away
Ranked #18 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 Providence, 17 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Swansea, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fall River, 9 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fall River, 7 mi away
Ranked #22 because of its Google rating and trade focus: 4.2★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seekonk, 16 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Attleboro, 22 mi away
Ranked #24 because of its Google rating and review volume: 4.8★ from 197 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Kingstown, 11 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 247 Google reviews.
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 55 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 |
| American Foam Technologies | 8 mi | |
| Aquidneck Abatement LLC | 4.6★ (10) | In Portsmouth |
| Aten Energy Conservation LLC | 5.0★ (2) | 14 mi |
| Baylies Insulation | 5.0★ (2) | 8 mi |
| Blueprint Construction Inc | 3.0★ (2) | 14 mi |
| CIC Insulation, Inc. | 5.0★ (2) | 15 mi |
| CPOP Attic Insulation & Roofing Services Inc, MA | 5.0★ (1) | 16 mi |
| Greenwich Insulation | 3.0★ (1) | 16 mi |
| Harborview Building | 5.0★ (1) | 24 mi |
| LED'S Attic Insulation & Roofing Services Acushnet, MA | 5.0★ (2) | 19 mi |
| Lundey Inc | 3.0★ (2) | 24 mi |
| Ned Reynolds | 5.0★ (2) | 8 mi |
| NTC Plastering | 5.0★ (1) | 16 mi |
| ProTech Spray Foam | 5.0★ (1) | 21 mi |
| RYPEC Home Sevices | 5.0★ (1) | 14 mi |
| Storey Telehealth | 8 mi | |
| US Green Insulation Rhode Island | 4 mi | |
| Uslg Boston | 1.0★ (1) | 18 mi |
| Viking Industries Inc | 5.0★ (1) | 11 mi |
National price ranges in USD, not adjusted for Portsmouth. 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 55 Portsmouth 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 Portsmouth 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 |