40 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Saint John: Gasca Spray Foam Insulation & Roofing, CR Score 82/100; 5.0★ from 17 Google reviews.
Best for emergencies (open 24/7): DAP & Son, posts 24/7 hours; ranked #11 of 40.
Most-reviewed: Indiana Spray Foam, 805 Google reviews at 4.9★, the most of 40 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
40 Saint John insulation contractors are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 18 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 40 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Gasca Spray Foam Insulation & Roofing | 82 | 5.0★ (17) | Steger, 8 mi away | — | Overall |
| 2 | Indiana Spray Foam | 82 | 4.9★ (805) | Lowell, 12 mi away | — | Most reviews |
| 3 | NM Enterprise's Energy Solutions | 82 | 5.0★ (44) | Dyer, 6 mi away | Sat | — |
| 4 | NM Enterprise's Energy Solutions | 81 | 4.9★ (34) | Merrillville, 5 mi away | Sat | — |
| 5 | Dream Work Contracting | 79 | 5.0★ (9) | Hobart, 12 mi away | — | — |
| 6 | Thornton Insulation Contractors | 79 | 5.0★ (8) | Frankfort, 1 mi away | Sat | — |
| 7 | Qute Insulation | 79 | 4.6★ (17) | Lynwood, 6 mi away | Sat | — |
| 8 | Sub-Cooled Heating and Air Conditioning | 78 | 4.9★ (198) | Portage, 16 mi away | Sat · Sun | — |
| 9 | Case Insulation Inc | 77 | 5.0★ (3) | Monee, 12 mi away | Sat · Sun · Evenings | — |
| 10 | E Campa Construction & Insulation Inc | 77 | 4.9★ (71) | South Holland, 12 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: 5.0★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Lowell, 12 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 805 Google reviews, the most Google reviews on this list (805).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dyer, 6 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Merrillville, 5 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hobart, 12 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Frankfort, 1 mi away
Ranked #6 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 Lynwood, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portage, 16 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 198 Google reviews, 198 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Monee, 12 mi away
Ranked #9 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 South Holland, 12 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 24 mi away
Ranked #11 because of its Google rating and trade focus: 4.2★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crestwood, 2 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crown Point, 7 mi away
Ranked #13 because of its Google rating and trade focus: 4.4★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Holland, 13 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 58 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oak Lawn, 22 mi away
Ranked #15 because of its Google rating and trade focus: 4.5★ from 46 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frankfort, 20 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 301 Google reviews, 301 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 17 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Merrillville, 5 mi away
Ranked #18 because of its Google rating and trade focus: 3.9★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Orland Park, 23 mi away
Ranked #19 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 18 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chicago, 20 mi away
Ranked #21 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crown Point, 7 mi away
Ranked #22 because of its Google rating and review volume: 4.5★ from 239 Google reviews, 239 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crestwood, 19 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mokena, 21 mi away
Ranked #24 because of its Google rating and review volume: 4.5★ from 138 Google reviews, 138 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in New Lenox, 23 mi away
Ranked #25 because of its Google rating and review volume: 4.9★ from 343 Google reviews, 343 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #40, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Tri-County Roofing & Gutters | 70 | 4.8★ (320) | 21 mi |
| 27 | M & O Insulation Company | 70 | 5.0★ (7) | 20 mi |
| 28 | Shout Green Insulation+ | 70 | 4.1★ (29) | 14 mi |
| 29 | Discount Roof | 69 | 4.8★ (240) | 23 mi |
| 30 | N.A. Logan | 69 | 4.4★ (9) | 9 mi |
| 31 | M & O Warehouse | 69 | 4.8★ (5) | 17 mi |
| 32 | Groen's Wildlife Services | 68 | 4.0★ (8) | 13 mi |
| 33 | Shuta Construction | 68 | 5.0★ (14) | 23 mi |
| 34 | Eenigenburg Roofing & Insulation | 67 | 4.1★ (11) | 13 mi |
| 35 | Northwest Custom Painting | 67 | 5.0★ (3) | 15 mi |
| 36 | Green Construction Holmes Builders LLC | 65 | 4.9★ (7) | 13 mi |
| 37 | AmeriPro Roofing | 64 | 4.3★ (43) | 21 mi |
| 38 | We Got Gutters | 63 | 3.8★ (12) | 16 mi |
| 39 | CR Painting | 63 | 5.0★ (10) | 21 mi |
| 40 | In N Out Construction | 61 | 2.0★ (4) | 12 mi |
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 |
|---|---|---|
| A Smart Homes Insulation | 5.0★ (2) | 23 mi |
| Arcos Environmental Services, Inc. | 19 mi | |
| Arcos Pro Services | 19 mi | |
| BrandSafway LLC East Hazel Crest | 13 mi | |
| Brandt Remodeling | 19 mi | |
| BROCK INDUSTRIAL | 12 mi | |
| Divine Foam Insulation | 5.0★ (1) | 14 mi |
| EcoPolySeal Spray Foam Insulation | 5.0★ (1) | 18 mi |
| In Insulation Solutions Inc | 5.0★ (1) | 10 mi |
| insultech of chicago | 1.0★ (2) | 22 mi |
| Kirobe Construction, Inc | 1.0★ (2) | 23 mi |
| M & O Environmental Company | 5.0★ (1) | 20 mi |
| Midwest Energy Audits Inc | 5.0★ (1) | 21 mi |
| Noble Insulation | 18 mi | |
| Northcoat Inc. | 5.0★ (2) | 6 mi |
| Oak Lawn Spray Foam Attic Insulation | 1.0★ (1) | 22 mi |
| Reho Home Remodeling Company | 19 mi | |
| SOS Spray Foam INC | 8 mi | |
| Southwest Insulation, Inc. | 5.0★ (2) | 19 mi |
| United Spray Foam Insulation | 18 mi |
National price ranges in USD, not adjusted for Saint John. 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 40 Saint John 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 Saint John 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 |