24 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Jefferson: Accurate Insulation Solutions LLC, CR Score 84/100; 4.9★ from 64 Google reviews; open Saturdays until 6 PM.
Best for emergencies (open 24/7): Legge Painting & Pre-Finishing, posts 24/7 hours; ranked #7 of 24.
Most-reviewed: Ace Handyman Services Waukesha Lake Country, 511 Google reviews at 4.9★, the most of 24 ranked; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
24 Jefferson insulation contractors are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 9 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 5.0★ across 24 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Accurate Insulation Solutions LLC | 84 | 4.9★ (64) | Fort Atkinson, 6 mi away | Sat | Overall |
| 2 | Cellar to Attic Insulation | 78 | 4.9★ (16) | Lake Mills, 16 mi away | Sat · Evenings | — |
| 3 | Insulation Industries | 78 | 4.6★ (7) | Oconomowoc, 14 mi away | — | — |
| 4 | City Wide, Inc. | 77 | 5.0★ (11) | McFarland, 25 mi away | — | — |
| 5 | Beneficial Insulation and Exteriors | 77 | 4.9★ (28) | Fitchburg, 11 mi away | — | — |
| 6 | Janesville Spray Foam Insulation | 76 | 5.0★ (22) | South Beloit, 11 mi away | — | — |
| 7 | Legge Painting & Pre-Finishing | 76 | 4.2★ (5) | Whitewater, 12 mi away | 24/7 | Emergencies |
| 8 | Janesville | 76 | 5.0★ (4) | Janesville, 22 mi away | Sat · Sun · Evenings | — |
| 9 | Top Tier Insulation LLC | 76 | 4.9★ (35) | South Beloit, 16 mi away | — | — |
| 10 | BadgerTech, LLC | 75 | 5.0★ (8) | Sun Prairie, 22 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 64 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lake Mills, 16 mi away
Ranked #2 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 Oconomowoc, 14 mi away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in McFarland, 25 mi away
Ranked #4 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 Fitchburg, 11 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Beloit, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Whitewater, 12 mi away
Ranked #7 because of its Google rating and availability: 4.2★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Janesville, 22 mi away
Ranked #8 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 South Beloit, 16 mi away
Ranked #9 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 Sun Prairie, 22 mi away
Ranked #10 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 Fitchburg, 20 mi away
Ranked #11 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 Sun Prairie, 25 mi away
Ranked #12 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 Stoughton, 20 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 Janesville, 23 mi away
Ranked #14 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 McFarland, 25 mi away
Ranked #15 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 Delafield, 22 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 511 Google reviews, the most Google reviews on this list (511).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Watertown, 14 mi away
Ranked #17 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 Stoughton, 20 mi away
Ranked #18 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 Madison, 24 mi away
Ranked #19 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 Delafield, 20 mi away
Ranked #20 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 McFarland, 25 mi away
Ranked #21 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 Janesville, 21 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 35 Google reviews, 35 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fitchburg, 21 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Painter”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison, 24 mi away
Ranked #24 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.
11 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 |
|---|---|---|
| Accurate Insulation Solutions LLC | 5.0★ (2) | 15 mi |
| Brock Industrial Services | 5.0★ (1) | 23 mi |
| Otto Drywall LLC | 5.0★ (7) | In Jefferson |
| Stritzel & Sons Builders Inc | 5.0★ (2) | 13 mi |
| Stritzel Property Services LLC | 1.0★ (1) | 13 mi |
| Thermal Design Inc | 5.0★ (1) | 21 mi |
| US Roofing Commercial & Industrial Contractors | 5.0★ (2) | 13 mi |
| Waukesha Spray Foam Insulation | 24 mi | |
| Wes Nasi Construction LLC | 5.0★ (2) | 9 mi |
| Wes Nasi Construction LLC | 24 mi | |
| Wisco Insulation LLC | 11 mi |
National price ranges in USD, not adjusted for Jefferson. 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 24 Jefferson 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 Jefferson 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 |