64 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Plainville: Eco Energy Guard LLC, CR Score 86/100; 5.0★ from 96 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Scalzo Mechanical Insulation, LLC, posts 24/7 hours; ranked #3 of 64.
Most-reviewed: Connecticut Basement Systems, 1,655 Google reviews at 4.8★, the most of 64 ranked; ranked #43.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
64 Plainville insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 33 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.8★ across 64 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Eco Energy Guard LLC | 86 | 5.0★ (96) | Farmington, 8 mi away | Sat · Sun · Evenings | Overall |
| 2 | CT Spray Foam Insulation LLC | 81 | 5.0★ (13) | Cheshire, 10 mi away | Sat · Sun · Evenings | — |
| 3 | Scalzo Mechanical Insulation, LLC | 81 | 5.0★ (3) | Farmington, 8 mi away | 24/7 | Emergencies |
| 4 | A&L Spray Foam Bloomfield | 80 | 5.0★ (25) | Bethel, 6 mi away | Sat · Evenings | — |
| 5 | Aj Insulation LLC | 79 | 5.0★ (24) | Torrington, 17 mi away | Sat · Sun · Evenings | — |
| 6 | American LLC | 79 | 5.0★ (6) | Bristol, 13 mi away | Sat · Sun · Evenings | — |
| 7 | Precision | 78 | 5.0★ (23) | Ellington, 19 mi away | Sat · Sun · Evenings | — |
| 8 | Priority Spray Foam | 78 | 5.0★ (23) | Hartford, 11 mi away | Sat · Evenings | — |
| 9 | Hartford Building Company LLC | 78 | 5.0★ (6) | Glastonbury, 14 mi away | Sat · Sun | — |
| 10 | Koala Insulation of Central Connecticut | 78 | 5.0★ (158) | Cromwell, 12 mi away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 10 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 8 mi away
Ranked #3 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.
Based in Bethel, 6 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Torrington, 17 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bristol, 13 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ellington, 19 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hartford, 11 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Glastonbury, 14 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cromwell, 12 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 158 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in East Hartford, 13 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Darien, 15 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Hartford, 9 mi away
Ranked #13 because of its Google rating and availability: 4.6★ from 22 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wallingford, 14 mi away
Ranked #14 because of its Google rating and trade focus: 4.3★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Hartford, 14 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ansonia, 13 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.4★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire Village, 8 mi away
Ranked #18 because of its Google rating and trade focus: 4.2★ from 56 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Windsor, 15 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in New Britain, 5 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethel, 15 mi away
Ranked #21 because of its Google rating and trade focus: 3.7★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Torrington, 17 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cromwell, 10 mi away
Ranked #24 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.
Based in Farmington, 10 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 11 Google reviews, open 24/7.
Based on 6 of 8 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 64 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 |
|---|---|---|
| Alves LLC | 5.0★ (2) | 17 mi |
| Attic Systems | 5.0★ (2) | 22 mi |
| Bright Solutions, LLC | 5.0★ (1) | 9 mi |
| Bright Solutions, LLC | 5.0★ (1) | 17 mi |
| Ceilings Inc. | 3.0★ (1) | 9 mi |
| Charette Drywall Systems LLC | 5.0★ (1) | 9 mi |
| Connecticut Spray Foam LLC | 1.0★ (1) | 13 mi |
| Connecticut's Handyman | 5.0★ (1) | 9 mi |
| Energy Resources | 5.0★ (2) | 12 mi |
| Fleming's Property Services LLC | 5.0★ (1) | 12 mi |
| Green Star Energy Solutions | 5.0★ (1) | 13 mi |
| Mechanical Insulation By D&R | 5.0★ (1) | 12 mi |
| Northeast Spray Foam, LLC | 5.0★ (2) | 18 mi |
| O & A INSULATION, LLC. | In Plainville | |
| Rigid Mason Contractors Inc | 5.0★ (1) | 11 mi |
| Sebastian Spray Foam Insulation LLC | 5.0★ (1) | 14 mi |
| TC Daimyo House Restoration And Attic Insulation Services,Hartford, CT | 5.0★ (2) | 13 mi |
| Top Notch Home Solution, LLC | 5.0★ (1) | 15 mi |
| Total Mechanical Systems | 4.7★ (2,607) | In Plainville |
| Westfhal | 5.0★ (1) | 14 mi |
National price ranges in USD, not adjusted for Plainville. 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 64 Plainville 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 Plainville 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 |