89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 56 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 56 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Insulation Contractors in Charlestown, RI (2026)
17 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Charlestown: L&B Remodeling Co. Inc., CR Score 89/100; 5.0★ from 56 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): WeatherTek Insulation LLC, posts 24/7 hours; ranked #2 of 17.
- 4
Most-reviewed: NetZero Insulation Technologies, 260 Google reviews at 5.0★, the most of 17 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Charlestown insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.7★ across 17 rated businesses.
Top 10 insulation contractors in Charlestown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | L&B Remodeling Co. Inc. | 89 | 5.0★ (56) | Seekonk, 14 mi away | 24/7 | Overall |
| 2 | WeatherTek Insulation LLC | 84 | 4.4★ (32) | Coventry, 20 mi away | 24/7 | Emergencies |
| 3 | Precision Spray Foam Insulation Warwick | 83 | 4.7★ (36) | Seekonk, 14 mi away | Sat · Sun · Evenings | — |
| 4 | NetZero Insulation Technologies | 83 | 5.0★ (260) | Seekonk, 14 mi away | — | Most reviews |
| 5 | RI Choice Spray Foam Inc. | 81 | 4.7★ (31) | Coventry, 22 mi away | Sat · Sun · Evenings | — |
| 6 | Onassis & Associates | 74 | 5.0★ (3) | Seekonk, 14 mi away | — | — |
| 7 | WeatherTek Insulation LLC | 74 | 3.7★ (3) | Coventry, 22 mi away | — | — |
| 8 | Tuma Insulation | 74 | 5.0★ (5) | Warwick, 24 mi away | — | — |
| 9 | Collins Insulation and Seamless Gutters, LLC | 73 | 5.0★ (11) | Seekonk, 25 mi away | Sat | — |
| 10 | Rhode Island Insulation | 73 | 5.0★ (4) | Exeter, 24 mi away | — | — |
The 17 best insulation contractors in Charlestown, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Coventry, 20 mi away
84/100CR ScoreRanked #2 because of its Google rating and availability: 4.4★ from 32 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.4★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Grandview St, Coventry, RI 02816
Based in Seekonk, 14 mi away
83/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 36 Google reviews
- Hours
- Mon 7 AM–6 PM · Tue–Fri 7 AM–7 PM · Sat–Sun 8 AM–5 PM
Based in Seekonk, 14 mi away
83/100CR ScoreRanked #4 because of its Google rating and review volume: 5.0★ from 260 Google reviews, the most Google reviews on this list (260).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 260 Google reviews
- Hours
- Mon–Fri 8 AM–5:30 PM · Sat–Sun closed
Based in Coventry, 22 mi away
81/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 31 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun 9 AM–5 PM
- Address
- 6222 Flat River Rd, Coventry, RI 02827
Based in Seekonk, 14 mi away
74/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 3 Google reviews
Based in Coventry, 22 mi away
74/100CR ScoreRanked #7 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 3.7★ from 3 Google reviews
- Address
- 4305 Flat River Rd, Coventry, RI 02827
Based in Warwick, 24 mi away
74/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 5 Google reviews
- Address
- Warwick, RI 02886
Based in Seekonk, 25 mi away
73/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat 7 AM–3 PM · Sun closed
Based in Exeter, 24 mi away
73/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 4 Google reviews
- Address
- 15 Abbi Ln, Hope, RI 02831
Based in North Kingstown, 17 mi away
73/100CR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 247 Google reviews, 247 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 247 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 7610 Post Rd Unit #3, North Kingstown, RI 02852
#12 A/Z Corporation
Based in Groton, 11 mi away
73/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 11 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 46 Norwich-Westerly Rd, North Stonington, CT 06359
#13 RoofMasters
Based in Norwich, 23 mi away
73/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7 School St, Griswold, CT 06351
Based in Coventry, 21 mi away
71/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.4★ from 7 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 1012 Tiogue Ave, Coventry, RI 02816
Based in Norwich, 25 mi away
69/100CR ScoreRanked #15 because of its Google rating and trade focus: 3.7★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 3.7★ from 26 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 505 Norwich Ave, Taftville, CT 06380
Based in West Warwick, 21 mi away
69/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.3★ from 7 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 1 Energy Way, West Warwick, RI 02893
Based in Groton, 14 mi away
67/100CR ScoreRanked #17 because of its Google rating and review volume: 4.6★ from 16 Google reviews, 16 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 16 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 46 Taugwonk Spur Rd #5, Stonington, CT 06378
Also serving Charlestown
17 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 |
|---|---|---|
| American Foam Technologies | 19 mi | |
| ASW Construction | 3 mi | |
| Capalbo's Waste Service | 7 mi | |
| Central Paper Co | 18 mi | |
| Chebbo Realty | 17 mi | |
| Duct Insulation | 19 mi | |
| Exodus Design Group | 2.3★ (3) | In Charlestown |
| Greenwich Insulation | 3.0★ (1) | 23 mi |
| Hoosier Legacy | 16 mi | |
| Lui G Insulation | 14 mi | |
| Ned Reynolds | 5.0★ (2) | 19 mi |
| PicusWoodwrights | 5.0★ (1) | In Charlestown |
| Premium Roofing & Siding | 4.7★ (34) | In Charlestown |
| R-Value Insulation LLC | 23 mi | |
| Rhode Island Spray Foam Insulation | 14 mi | |
| Storey Telehealth | 18 mi | |
| US Green Insulation Rhode Island | 22 mi |
How much do insulation contractors cost in Charlestown?
National price ranges in USD, not adjusted for Charlestown. 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 |
How we ranked Charlestown insulation contractors
We scored 17 Charlestown insulation contractors on 8 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. Unknown factors are left out of the score, 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 Charlestown data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Insulation contractors in Charlestown: frequently asked questions
Who is the best insulation contractor in Charlestown?
By CR Score, the highest-ranked insulation contractor in Charlestown, RI is L&B Remodeling Co. Inc. with a CR Score of 89/100. It has 5.0★ from 56 Google reviews. It is open 24/7. WeatherTek Insulation LLC (#2) and Precision Spray Foam Insulation Warwick (#3) follow. We ranked 17 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Charlestown?
ContractorsRanked ranks 17 insulation contractors serving Charlestown, RI. Another 17 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Charlestown are open 24/7?
3 ranked insulation contractors in Charlestown post 24/7 hours. The highest-ranked are L&B Remodeling Co. Inc. (#1), WeatherTek Insulation LLC (#2) and RoofMasters (#13). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Charlestown work on weekends?
6 of 17 ranked insulation contractors post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are L&B Remodeling Co. Inc. (#1), WeatherTek Insulation LLC (#2) and Precision Spray Foam Insulation Warwick (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Charlestown?
Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Charlestown. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Charlestown insulation contractors have?
The median Google rating among 17 rated insulation contractors in Charlestown is 4.7★, with a median of 11 reviews. NetZero Insulation Technologies has the most, 260 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank insulation contractors?
Each insulation contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Charlestown count in this ranking?
Yes, if they are within 25 mi of the Charlestown city center, our service radius for insulation contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Charlestown
- October 2026: CR Scores recalculated for 17 insulation contractors serving Charlestown.
- October 2026: 1 duplicate listing merged.
More insulation contractors and Charlestown pages
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