51 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Walker: Koala Insulation of Grand Rapids, CR Score 60/100; 4.9★ from 252 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): Above Roofing, posts 24/7 hours; ranked #2 of 51.
Most-reviewed: WMGB Home Improvement (Formerly West Michigan Glass Block), 1,406 Google reviews at 4.9★, the most of 51 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
51 Walker insulation contractors are ranked here by CR Score, from ten published factors. 5 are open 24/7, 18 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.8★ across 51 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Koala Insulation of Grand Rapids | 60 | 4.9★ (252) | Wyoming, 7 mi away | Sat | Overall |
| 2 | Above Roofing | 58 | 4.8★ (507) | Allendale, 8 mi away | 24/7 | Emergencies |
| 3 | VerWys Home Insulation | 56 | 4.7★ (120) | Grand Rapids, 6 mi away | — | — |
| 4 | Above Roofing | 56 | 4.8★ (172) | Grand Rapids, 8 mi away | 24/7 | — |
| 5 | WMGB Home Improvement (Formerly West Michigan Glass Block) | 55 | 4.9★ (1,406) | Wyoming, 6 mi away | — | Most reviews |
| 6 | Prime Spray Foam Insulation | 55 | 4.9★ (30) | Grand Rapids, 13 mi away | Sat · Evenings | — |
| 7 | G & K Insulating | 54 | 5.0★ (6) | Grand Rapids, 3 mi away | Sat | — |
| 8 | Avalon Roofing and Exteriors | 54 | 4.2★ (677) | Grand Rapids, 10 mi away | 24/7 | — |
| 9 | Allendale Wildlife Removal | 54 | 5.0★ (4) | Allendale, 9 mi away | Sat · Sun | — |
| 10 | Comfort Insulation Inc | 54 | 4.3★ (6) | Grand Rapids, 5 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 252 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 8 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 507 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 6 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 120 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 8 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 172 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wyoming, 6 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 1,406 Google reviews, the most in Walker.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 13 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 3 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 10 mi away
Ranked #8 because of its Google rating and review volume: 4.2★ from 677 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 9 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 5 mi away
Ranked #10 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Allendale, 11 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jenison, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 14 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wyoming, 10 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 168 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kentwood, 13 mi away
Ranked #15 because of its Google rating and review volume: 4.7★ from 523 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jenison, 9 mi away
Ranked #16 because of its Google rating and trade focus: 4.3★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Rapids, 11 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holland, 22 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 102 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 14 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holland, 17 mi away
Ranked #20 because of its Google rating and trade focus: 4.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Forest Hills, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 10 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kentwood, 13 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allendale, 11 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 25 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Walker. 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 51 Walker insulation contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Walker data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |