15 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rockton: Comfort 1st Insulation, CR Score 89/100; 4.9★ from 271 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Legan Construction & Remodeling, posts 24/7 hours; ranked #2 of 15.
Most-reviewed: Greenlink Energy Solutions, 203 Google reviews at 4.9★, the most of 15 ranked after Comfort 1st Insulation; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
15 Rockton insulation contractors are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 7 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.8★ across 15 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Comfort 1st Insulation | 89 | 4.9★ (271) | Rockford, 15 mi away | Sat · Sun | Overall |
| 2 | Legan Construction & Remodeling | 78 | 4.7★ (12) | Janesville, 12 mi away | 24/7 | Emergencies |
| 3 | Rockford Spray Foam Insulation | 77 | 5.0★ (24) | Loves Park, 9 mi away | — | — |
| 4 | Metro Insulation | 77 | 4.7★ (34) | Rockford, 11 mi away | — | — |
| 5 | Janesville | 76 | 5.0★ (4) | Janesville, 19 mi away | Sat · Sun · Evenings | — |
| 6 | Dwyer Foam Insulation | 76 | 5.0★ (3) | Beloit, 8 mi away | Sun · Evenings | — |
| 7 | EcoHome Expert, Inc. KANGA ROOF | 75 | 4.3★ (58) | Belvidere, 17 mi away | Sat · Sun | — |
| 8 | Beneficial Insulation Solutions | 75 | 5.0★ (3) | Janesville, 18 mi away | Sat · Sun · Evenings | — |
| 9 | Greenlink Energy Solutions | 74 | 4.9★ (203) | Rockford, 15 mi away | — | Most reviews |
| 10 | Handyman Connection of Rockford | 73 | 4.6★ (54) | Rockford, 14 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and review volume: 4.9★ from 271 Google reviews, the most Google reviews on this list (271).
Based in Janesville, 12 mi away
Ranked #2 because of its Google rating and availability: 4.7★ from 12 Google reviews, open 24/7.
Based in Loves Park, 9 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockford, 11 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based in Janesville, 19 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Beloit, 8 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Belvidere, 17 mi away
Ranked #7 because of its Google rating and availability: 4.3★ from 58 Google reviews, open 7 days a week.
Based in Janesville, 18 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockford, 15 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 203 Google reviews, 203 Google reviews.
Based in Rockford, 14 mi away
Ranked #10 because of its Google rating and review volume: 4.6★ from 54 Google reviews, 54 Google reviews.
Based in Janesville, 16 mi away
Ranked #11 because of its Google rating and trade focus: 4.2★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based in Machesney Park, 5 mi away
Ranked #12 because of its Google rating and availability: 4.3★ from 6 Google reviews, open Saturdays until 6 PM.
Based in Rockford, 16 mi away
Ranked #13 because of its Google rating and review volume: 4.8★ from 67 Google reviews, 67 Google reviews.
Based in Janesville, 16 mi away
Ranked #14 because of its Google rating and review volume: 5.0★ from 18 Google reviews, 18 Google reviews.
Based in Rockford, 13 mi away
Ranked #15 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Masonry contractor”.
National price ranges in USD, not adjusted for Rockton. 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 15 Rockton 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 Rockton 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 |