145 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Downers Grove: ABC Humane Wildlife Control and Prevention Inc., CR Score 88/100; 4.8★ from 369 Google reviews; open 24/7.
Best for emergencies (open 24/7): ABC Humane Wildlife Control and Prevention Inc., posts 24/7 hours; ranked #6 of 145.
Most-reviewed: Perma-Seal Basement Systems, 12,405 Google reviews at 4.9★, the most of 145 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
145 Downers Grove insulation contractors are ranked here by CR Score, from 8 published factors. 14 are open 24/7, 83 open Saturdays and 36 open Sundays, based on posted hours. The median Google rating is 4.8★ across 145 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ABC Humane Wildlife Control and Prevention Inc. | 88 | 4.8★ (369) | Des Plaines, 8 mi away | 24/7 | Overall |
| 2 | Air Flows Chicago - Belmont | 85 | 5.0★ (933) | Chicago, 18 mi away | Sat · Sun · Evenings | — |
| 3 | U.S. Home Services | 84 | 4.7★ (50) | Downers Grove | Sat · Sun · Evenings | — |
| 4 | Eco-Pro Insulation | 82 | 4.7★ (15) | Downers Grove | Sat · Sun · Evenings | — |
| 5 | ARC Insulation | 82 | 4.9★ (609) | Romeoville, 12 mi away | Sat | — |
| 6 | ABC Humane Wildlife Control and Prevention Inc. | 82 | 4.9★ (309) | Lisle, 8 mi away | 24/7 | Emergencies |
| 7 | ABC Humane Wildlife Control and Prevention Inc. | 82 | 4.9★ (300) | Deerfield, 8 mi away | 24/7 | — |
| 8 | EcoShield Pest Solutions | 82 | 4.7★ (4,792) | Geneva, 15 mi away | Sat | — |
| 9 | Koala Insulation of Chicago - Western Suburbs | 81 | 5.0★ (489) | Lombard, 2 mi away | — | — |
| 10 | Williams Roofing & Insulation | 81 | 4.2★ (128) | Des Plaines, 14 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Downers Grove
Based in Des Plaines, 8 mi away
Ranked #1 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 Chicago, 18 mi away
Ranked #2 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 Downers Grove
Ranked #3 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 Downers Grove
Ranked #4 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 Romeoville, 12 mi away
Ranked #5 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 Lisle, 8 mi away
Ranked #6 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, 8 mi away
Ranked #7 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 Geneva, 15 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 4,792 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lombard, 2 mi away
Ranked #9 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 Des Plaines, 14 mi away
Ranked #10 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 Burr Ridge, 6 mi away
Ranked #11 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 Westmont, 3 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bensenville, 12 mi away
Ranked #13 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 Village of Campton Hills, 3 mi away
Ranked #14 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 Westchester, 7 mi away
Ranked #15 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, 16 mi away
Ranked #16 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 Elmhurst, 8 mi away
Ranked #17 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 Burr Ridge, 6 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 40 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Roselle, 13 mi away
Ranked #19 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 Elmhurst, 7 mi away
Ranked #20 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 Glenview, 21 mi away
Ranked #21 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 Downers Grove
Ranked #22 because of its Google rating and trade focus: 4.6★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Schaumburg, 14 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 111 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lombard, 6 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Downers Grove
Ranked #25 because of its Google rating and trade focus: 4.3★ from 54 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 #50, in CR Score order; each links to its profile. We publish the top 50 of 145 ranked insulation contractors here; the rest are on their profiles.
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 |
|---|---|---|
| 1ST Window Replacement & Installation | 5.0★ (45) | In Downers Grove |
| A Smart Homes Insulation | 5.0★ (2) | 14 mi |
| Accurate Wire & Insulation | 5.0★ (2) | 14 mi |
| Apex Rodent Proofing and Insulation | 5.0★ (2) | 14 mi |
| AS & JB | 5.0★ (2) | 17 mi |
| Aztec Inc. | 5.0★ (2) | 14 mi |
| Butler Roofing | 5.0★ (113) | In Downers Grove |
| Dupage Adjusters LLC | 4.7★ (249) | In Downers Grove |
| Econotemp Inc | 4.9★ (231) | In Downers Grove |
| Energy Efficient Building Systems By Solarcrete | 5.0★ (2) | 11 mi |
| Hudson Insulation Solutions | 5.0★ (2) | 17 mi |
| insultech of chicago | 1.0★ (2) | 16 mi |
| JAD Exteriors LLC | 4.5★ (15) | In Downers Grove |
| Jay's Window Replacement | 5.0★ (29) | In Downers Grove |
| Jesse Siding Contractors | 5.0★ (45) | In Downers Grove |
| Lifetime Xteriors | 5.0★ (67) | In Downers Grove |
| Pure Climate Heating and Cooling | 5.0★ (320) | In Downers Grove |
| Sonara Roofing | 5.0★ (12) | In Downers Grove |
| Southwest Insulation, Inc. | 5.0★ (2) | 19 mi |
| Thermal Foam Insulation | 5.0★ (2) | 19 mi |
National price ranges in USD, not adjusted for Downers Grove. 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 145 Downers Grove 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 Downers Grove 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 |