49 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Madison: AMP'd Enterprises LLC, CR Score 81/100; 4.9★ from 78 Google reviews; open Saturdays until 1 PM.
Best for emergencies (open 24/7): Eli Construction Services Inc, posts 24/7 hours; ranked #2 of 49.
Most-reviewed: Connecticut Basement Systems, 1,655 Google reviews at 4.8★, the most of 49 ranked; ranked #30.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
49 Madison insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 25 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.9★ across 49 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | AMP'd Enterprises LLC | 81 | 4.9★ (78) | Branford, 9 mi away | Sat · Evenings | Overall |
| 2 | Eli Construction Services Inc | 80 | 5.0★ (5) | Calverton, 20 mi away | 24/7 | Emergencies |
| 3 | New England Performance Insulation | 80 | 5.0★ (153) | Milford, 22 mi away | Sat | — |
| 4 | Nealon Insulation of Connecticut | 78 | 5.0★ (66) | Guilford, 6 mi away | — | — |
| 5 | Nescor | 78 | 4.0★ (4) | Old Saybrook, 10 mi away | Sat · Sun · Evenings | — |
| 6 | Best Home Performance | 78 | 4.6★ (43) | East Haddam, 25 mi away | Sat · Sun | — |
| 7 | American LLC | 78 | 5.0★ (6) | Bristol, 17 mi away | Sat · Sun · Evenings | — |
| 8 | CT Spray Foam Insulation LLC | 78 | 5.0★ (13) | Cheshire, 23 mi away | Sat · Sun · Evenings | — |
| 9 | Claremont Co Inc | 77 | 4.3★ (13) | Cheshire, 15 mi away | — | — |
| 10 | Right Way Insulation | 77 | 5.0★ (33) | Darien, 20 mi away | Sat | — |
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: 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 Calverton, 20 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milford, 22 mi away
Ranked #3 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 Guilford, 6 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 66 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Old Saybrook, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in East Haddam, 25 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bristol, 17 mi away
Ranked #7 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 Cheshire, 23 mi away
Ranked #8 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, 15 mi away
Ranked #9 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 Darien, 20 mi away
Ranked #10 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 Wallingford, 18 mi away
Ranked #11 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 Ansonia, 17 mi away
Ranked #12 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, 22 mi away
Ranked #13 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 West Haven, 18 mi away
Ranked #14 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 Bethel, 20 mi away
Ranked #15 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 West Haven, 20 mi away
Ranked #16 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 Madison
Ranked #17 because of its Google rating and trade focus: 4.9★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wallingford, 17 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ 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, 18 mi away
Ranked #19 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 Bridgeport, 15 mi away
Ranked #20 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Haven, 17 mi away
Ranked #21 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.
Based in Bethel, 20 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 214 Google reviews, 214 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in New Haven, 15 mi away
Ranked #23 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 East Haddam, 12 mi away
Ranked #24 because of its Google rating and review volume: 4.9★ from 53 Google reviews, 53 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire Village, 25 mi away
Ranked #25 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.
#1 to #25 are shown in full above. Here are #26 to #49, in CR Score order; each links to its profile.
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) | 22 mi |
| AC Everest Insulation LLC | 5.0★ (1) | 23 mi |
| All Climate Insulation | In Madison | |
| American Insulation | 5.0★ (1) | 21 mi |
| Basement Entry Systems | 1.0★ (1) | 4 mi |
| Charles Shafer Builder | In Madison | |
| Comfort Zone Heating & Air Conditioning | 4.0★ (2) | 20 mi |
| D & N Insulation Co Inc | 5.0★ (1) | 20 mi |
| Foam Dispensing Solutions | 3 mi | |
| Kaskade Home | 1.0★ (1) | 15 mi |
| Mechanical Insulation By D&R | 5.0★ (1) | 19 mi |
| P. L. Mountzoures, Inc. | 4.8★ (36) | In Madison |
| Quality Insulation LLC | 5.0★ (1) | 13 mi |
| R-Value Insulation LLC | 5.0★ (1) | 18 mi |
| Sebastian Spray Foam Insulation LLC | 5.0★ (1) | 21 mi |
| Shoreline Modular Homes | In Madison | |
| Sprayshield Fireproofing & Spray Foam | 5.0★ (1) | 22 mi |
| SUPREME INTERIOR & EXTERIOR PAINTING | 5.0★ (2) | 22 mi |
| Synergy Insulation | 15 mi | |
| Temp Chek Services, LLC | 5.0★ (2) | 20 mi |
National price ranges in USD, not adjusted for Madison. 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 49 Madison 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 Madison 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 |