127 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oak Park: Air Flows Chicago - Belmont, CR Score 89/100; 5.0★ from 933 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): ABC Humane Wildlife Control and Prevention Inc., posts 24/7 hours; ranked #2 of 127.
Most-reviewed: Perma-Seal Basement Systems, 12,405 Google reviews at 4.9★, the most of 127 ranked; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
127 Oak Park insulation contractors are ranked here by CR Score, from 8 published factors. 12 are open 24/7, 77 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.8★ across 127 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Air Flows Chicago - Belmont | 89 | 5.0★ (933) | Chicago, 6 mi away | Sat · Sun · Evenings | Overall |
| 2 | ABC Humane Wildlife Control and Prevention Inc. | 87 | 4.8★ (369) | Des Plaines, 15 mi away | 24/7 | Emergencies |
| 3 | Williams Roofing & Insulation | 83 | 4.2★ (128) | Des Plaines, 8 mi away | 24/7 | — |
| 4 | U.S. Home Services | 82 | 4.7★ (50) | Downers Grove, 8 mi away | Sat · Sun · Evenings | — |
| 5 | Top Air Solutions | 82 | 4.9★ (602) | Glenview, 14 mi away | Sat · Evenings | — |
| 6 | Nu-Crawl | 81 | 4.2★ (5) | Bensenville, 11 mi away | 24/7 | — |
| 7 | Advanced Insulation Solutions | 81 | 4.8★ (22) | Westchester, 6 mi away | — | — |
| 8 | Green Attic Insulation | 81 | 4.8★ (689) | Des Plaines, 13 mi away | Sat | — |
| 9 | Eco-Pro Insulation | 81 | 4.7★ (15) | Downers Grove, 7 mi away | Sat · Sun · Evenings | — |
| 10 | ABC Humane Wildlife Control and Prevention Inc. | 80 | 4.9★ (309) | Lisle, 15 mi away | 24/7 | — |
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 933 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Des Plaines, 15 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 369 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Des Plaines, 8 mi away
Ranked #3 because of its Google rating and availability: 4.2★ from 128 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Downers Grove, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 50 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Glenview, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 602 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bensenville, 11 mi away
Ranked #6 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 Westchester, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Des Plaines, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 689 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Downers Grove, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lisle, 15 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 309 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Deerfield, 15 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 300 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elmhurst, 7 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Skokie, 10 mi away
Ranked #14 because of its Google rating and availability: 4.8★ from 213 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Romeoville, 22 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 609 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Burr Ridge, 12 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 12,405 Google reviews, the most Google reviews on this list (12,405).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 4 mi away
Ranked #17 because of its Google rating and trade focus: 4.4★ 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 Prospect Heights, 16 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 106 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 8 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elmhurst, 13 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Roselle, 17 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Village of Campton Hills, 10 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 74 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lombard, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 489 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lincolnwood, 9 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elk Grove Village, 18 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 19 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 Oak Park. 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 127 Oak Park 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 Oak Park 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 |