83 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Prospect: CT Spray Foam Insulation LLC, CR Score 56/100; 5.0★ from 13 Google reviews; open 7 days a week.
Most-reviewed: Power Home Remodeling, 3,018 Google reviews at 4.6★, the most of 83 ranked; ranked #29.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
83 Prospect insulation contractors are ranked here by CR Score, from ten published factors. 7 are open 24/7, 50 open Saturdays and 17 open Sundays, based on posted hours. The median Google rating is 4.9★ across 83 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CT Spray Foam Insulation LLC | 56 | 5.0★ (13) | Cheshire, 5 mi away | Sat · Sun · Evenings | Overall |
| 2 | Right Way Insulation | 56 | 5.0★ (33) | Darien, 6 mi away | Sat | — |
| 3 | Eco Energy Guard LLC | 56 | 5.0★ (96) | Farmington, 21 mi away | Sat · Sun · Evenings | — |
| 4 | New England Performance Insulation | 56 | 5.0★ (153) | Milford, 18 mi away | Sat | — |
| 5 | Ace Handyman Services Northwestern CT | 55 | 4.9★ (119) | Woodbury, 12 mi away | — | — |
| 6 | McMahon Spray Foam | 55 | 3.7★ (25) | Bethel, 6 mi away | Sat · Sun · Evenings | — |
| 7 | Koala Insulation of Southern Connecticut | 55 | 5.0★ (113) | Shelton, 14 mi away | — | — |
| 8 | AMP'd Enterprises LLC | 55 | 4.9★ (78) | Branford, 18 mi away | Sat · Evenings | — |
| 9 | Element Shield LLC | 54 | 5.0★ (21) | Cheshire, 10 mi away | Sat | — |
| 10 | A&L Spray Foam Bloomfield | 54 | 5.0★ (25) | Bethel, 13 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: 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 Darien, 6 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmington, 21 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milford, 18 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodbury, 12 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 119 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethel, 6 mi away
Ranked #6 because of its Google rating and trade focus: 3.7★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Shelton, 14 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 113 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Branford, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cheshire, 10 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethel, 13 mi away
Ranked #10 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 West Haven, 15 mi away
Ranked #11 because of its Google rating and trade focus: 4.5★ from 97 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wallingford, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wallingford, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.3★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Bristol, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethel, 17 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cromwell, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 158 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethel, 17 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 58 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethel, 6 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 214 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Haven, 15 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seymour, 9 mi away
Ranked #20 because of its Google rating and review volume: 4.8★ from 1,655 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrington, 23 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bridgeport, 11 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakville, 10 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milford, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ansonia, 11 mi away
Ranked #25 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.
#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 83 ranked insulation contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Scalzo Mechanical Insulation, LLC | 52 | 5.0★ (3) | 18 mi |
| 27 | Beacon Spray Foam | 52 | 4.4★ (7) | 9 mi |
| 28 | EcoSmart Home Services | 52 | 4.2★ (56) | 16 mi |
| 29 | Power Home Remodeling | 52 | 4.6★ (3,018) | 20 mi |
| 30 | Green Comfort Solutions | 52 | 4.8★ (30) | 12 mi |
| 31 | Energy Nerds LLC | 52 | 4.7★ (15) | 16 mi |
| 32 | Foam A Brothers | 52 | 5.0★ (13) | 24 mi |
| 33 | The Home Energy Pros LLC | 52 | 5.0★ (41) | 18 mi |
| 34 | PNC Spray Foam Insulation in Fairfield County | 51 | 5.0★ (4) | 24 mi |
| 35 | Dr. Energy Saver Connecticut | 51 | 4.1★ (33) | 9 mi |
| 36 | Claremont Co Inc | 51 | 4.3★ (13) | 15 mi |
| 37 | 3K Pro | 51 | 5.0★ (18) | 21 mi |
| 38 | Champion | 51 | 5.0★ (21) | 23 mi |
| 39 | Supreme | 51 | 5.0★ (25) | 24 mi |
| 40 | Priority Inc. | 51 | 5.0★ (24) | 24 mi |
| 41 | Home Comfort Practice, Inc. | 51 | 4.9★ (1,222) | 24 mi |
| 42 | Priority Spray Foam | 51 | 5.0★ (23) | 24 mi |
| 43 | American Liberty Insulation | 51 | 4.3★ (6) | 14 mi |
| 44 | NexGen Energy LLC | 51 | 5.0★ (11) | 18 mi |
| 45 | Perfect Wall LLC | 51 | 4.3★ (6) | 14 mi |
| 46 | Insulation Express CT | 51 | 5.0★ (11) | 11 mi |
| 47 | R&R Spray Foam | 51 | 4.5★ (8) | 23 mi |
| 48 | Connecticut Dry Basements | 51 | 4.4★ (30) | 23 mi |
| 49 | Alpha Basement Waterproofing Connecticut | 50 | 5.0★ (37) | 5 mi |
| 50 | Hartford Building Company LLC | 50 | 5.0★ (6) | 25 mi |
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) | 23 mi |
| Attic Systems | 5.0★ (2) | 9 mi |
| Big Dryer Vent Cleaning Services Prospect, CT | 4.8★ (5) | In Prospect |
| Charette Drywall Systems LLC | 5.0★ (1) | 13 mi |
| Comfort Zone Heating & Air Conditioning | 4.0★ (2) | 15 mi |
| D & N Insulation Co Inc | 5.0★ (1) | 15 mi |
| Energy Resources | 5.0★ (2) | 12 mi |
| Green Star Energy Solutions | 5.0★ (1) | 5 mi |
| Griffin Insulation | 5.0★ (2) | 21 mi |
| KMK Insulation | 5.0★ (1) | 8 mi |
| Live a Little Vans | 5.0★ (53) | In Prospect |
| Mechanical Insulation By D&R | 5.0★ (1) | 11 mi |
| Northeast Spray Foam, LLC | 5.0★ (2) | 15 mi |
| Perfection and Advance Drywall LLC - Drywall Installation Contractor, Drywall Covering Service, Metal Framing | 5.0★ (2) | 22 mi |
| Quality Insulation LLC | 5.0★ (1) | 12 mi |
| Sebastian Spray Foam Insulation LLC | 5.0★ (1) | 5 mi |
| SUPREME INTERIOR & EXTERIOR PAINTING | 5.0★ (2) | 17 mi |
| Temp Chek Services, LLC | 5.0★ (2) | 16 mi |
| Top Notch Home Solution, LLC | 5.0★ (1) | 2 mi |
| Westfhal | 5.0★ (1) | 6 mi |
National price ranges in USD, not adjusted for Prospect. 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 83 Prospect 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 Prospect 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 |