29 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Monona: Environmental Construction Services Inc., CR Score 88/100; 5.0★ from 16 Google reviews; open 24/7.
Best for emergencies (open 24/7): Infinity Exteriors, posts 24/7 hours; ranked #2 of 29.
Most-reviewed: Pharo Heating & Cooling, Inc., 832 Google reviews at 4.9★, the most of 29 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
29 Monona insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 9 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 29 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Environmental Construction Services Inc. | 88 | 5.0★ (16) | Madison, 2 mi away | 24/7 | Overall |
| 2 | Infinity Exteriors | 88 | 4.9★ (335) | Madison, 2 mi away | 24/7 | Emergencies |
| 3 | City Wide, Inc. | 84 | 5.0★ (11) | McFarland, 3 mi away | — | — |
| 4 | Spraytech Insulators of Madison | 82 | 4.9★ (24) | Madison, 2 mi away | Sat | — |
| 5 | Rainbow Insulators Inc. | 82 | 5.0★ (10) | Middleton, 8 mi away | — | — |
| 6 | Madison Spray Foam Insulation Pros | 82 | 5.0★ (24) | Fitchburg, 2 mi away | Sat | — |
| 7 | Accurate-Airtight Exteriors | 80 | 4.9★ (59) | Madison, 3 mi away | — | — |
| 8 | BadgerTech, LLC | 79 | 5.0★ (8) | Sun Prairie, 6 mi away | Sat | — |
| 9 | Koala Insulation of Madison | 79 | 5.0★ (61) | Sun Prairie, 6 mi away | — | — |
| 10 | Cellar to Attic Insulation | 79 | 4.9★ (16) | Lake Mills, 11 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 availability: 5.0★ from 16 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 2 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 335 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McFarland, 3 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Madison, 2 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Middleton, 8 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Fitchburg, 2 mi away
Ranked #6 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 Madison, 3 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sun Prairie, 6 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sun Prairie, 6 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lake Mills, 11 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McFarland, 3 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 77 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fitchburg, 7 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 Stoughton, 9 mi away
Ranked #13 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 Waunakee, 8 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 832 Google reviews, the most Google reviews on this list (832).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sun Prairie, 7 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 3 mi away
Ranked #16 because of its Google rating and trade focus: 4.3★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 14 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waunakee, 7 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 254 Google reviews, 254 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McFarland, 3 mi away
Ranked #19 because of its Google rating and availability: 3.8★ from 4 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Beloit, 18 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 9 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 276 Google reviews, 276 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 3 mi away
Ranked #22 because of its Google rating and trade focus: 2.9★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 13 mi away
Ranked #23 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 Fitchburg, 5 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Concrete contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Stoughton, 13 mi away
Ranked #25 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.
National price ranges in USD, not adjusted for Monona. 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 29 Monona 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 Monona 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 |