68 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ansonia: New England Performance Insulation, CR Score 83/100; 5.0★ from 153 Google reviews; open Saturdays until 4 PM.
Best for emergencies (open 24/7): PNC Spray Foam Insulation in Fairfield County, posts 24/7 hours; ranked #8 of 68.
Most-reviewed: Power Home Remodeling, 3,018 Google reviews at 4.6★, the most of 68 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
68 Ansonia insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 40 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.9★ across 68 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | New England Performance Insulation | 83 | 5.0★ (153) | Milford, 8 mi away | Sat | Overall |
| 2 | Shelton Insulation and Gutters, LLC | 81 | 5.0★ (3) | Ansonia | Sat · Sun · Evenings | — |
| 3 | Ortiz Spray Foam Insulation, LLC | 80 | 5.0★ (32) | Bethel, 6 mi away | Sat | — |
| 4 | Koala Insulation of Southern Connecticut | 80 | 5.0★ (113) | Shelton, 2 mi away | — | — |
| 5 | Advanced Insulation Milford | 80 | 5.0★ (39) | Milford, 10 mi away | Sat | — |
| 6 | Foam A Brothers | 79 | 5.0★ (13) | Darien, 15 mi away | Sat · Sun · Evenings | — |
| 7 | CT Spray Foam Insulation LLC | 79 | 5.0★ (13) | Cheshire, 16 mi away | Sat · Sun · Evenings | — |
| 8 | PNC Spray Foam Insulation in Fairfield County | 79 | 5.0★ (4) | Bridgeport, 12 mi away | 24/7 | Emergencies |
| 9 | R&R Spray Foam | 79 | 4.5★ (8) | Stratford, 11 mi away | Sat · Sun · Evenings | — |
| 10 | AMP'd Enterprises LLC | 79 | 4.9★ (78) | Branford, 16 mi away | Sat · Evenings | — |
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 153 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ansonia
Ranked #2 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 Bethel, 6 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Shelton, 2 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 113 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milford, 10 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 39 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 #6 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 Cheshire, 16 mi away
Ranked #7 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 Bridgeport, 12 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Stratford, 11 mi away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Branford, 16 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Haven, 8 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Haven, 7 mi away
Ranked #12 because of its Google rating and trade focus: 4.5★ from 97 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Norwalk, 24 mi away
Ranked #13 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 Bridgeport, 12 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Trumbull, 8 mi away
Ranked #15 because of its Google rating and review volume: 4.6★ from 3,018 Google reviews, the most Google reviews on this list (3,018).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Darien, 13 mi away
Ranked #16 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 Bethel, 12 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 6 of 8 factors; credentials and recency not yet collected.
Based in Trumbull, 10 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Stratford, 12 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 1,222 Google reviews, 1,222 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 8 mi away
Ranked #20 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 Bethel, 13 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 Stratford, 13 mi away
Ranked #22 because of its Google rating and availability: 4.5★ from 42 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wallingford, 16 mi away
Ranked #23 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 Bristol, 20 mi away
Ranked #24 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 New Canaan, 16 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 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 68 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&C Insulation | 5.0★ (1) | 6 mi |
| AC Everest Insulation LLC | 5.0★ (1) | 8 mi |
| American Insulation | 5.0★ (1) | 9 mi |
| Attic Systems | 5.0★ (2) | 3 mi |
| CBS Contractors Heating & Cooling | 5.0★ (22) | In Ansonia |
| Comfort Zone Heating & Air Conditioning | 4.0★ (2) | 7 mi |
| D & N Insulation Co Inc | 5.0★ (1) | 7 mi |
| Energy Resources | 5.0★ (2) | 22 mi |
| Everest Insulation | 5.0★ (1) | 12 mi |
| G&G Contractor LLC | 5.0★ (2) | 20 mi |
| Griffin Insulation | 5.0★ (2) | 10 mi |
| KMK Insulation | 5.0★ (1) | 7 mi |
| Miranda Drywall & Insulation LLC | In Ansonia | |
| Northeast Spray Foam, LLC | 5.0★ (2) | 21 mi |
| Perfection and Advance Drywall LLC - Drywall Installation Contractor, Drywall Covering Service, Metal Framing | 5.0★ (2) | 10 mi |
| RTPW Painting Decor And Dry Wall Services And Attic Insulation In Stratford, PA | 5.0★ (1) | 10 mi |
| Sprayshield Fireproofing & Spray Foam | 5.0★ (1) | 6 mi |
| SUPREME INTERIOR & EXTERIOR PAINTING | 5.0★ (2) | 6 mi |
| Temp Chek Services, LLC | 5.0★ (2) | 8 mi |
| Top Notch Home Solution, LLC | 5.0★ (1) | 11 mi |
National price ranges in USD, not adjusted for Ansonia. 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 68 Ansonia 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 Ansonia 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 |