63 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Millersville: Koala Insulation of Nashville, CR Score 64/100; 5.0★ from 528 Google reviews; open 24/7.
Best for emergencies (open 24/7): Crawl Space Brothers, posts 24/7 hours; ranked #3 of 63.
Most-reviewed: Donelson Air Service Experts, 5,469 Google reviews at 4.8★, the most of 63 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
63 Millersville insulation contractors are ranked here by CR Score, from ten published factors. 7 are open 24/7, 31 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.9★ across 63 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Koala Insulation of Nashville | 64 | 5.0★ (528) | Goodlettsville, 7 mi away | 24/7 | Overall |
| 2 | EcoShield Pest Solutions | 60 | 4.9★ (5,388) | Nashville, 20 mi away | Sat | — |
| 3 | Crawl Space Brothers | 60 | 4.9★ (439) | Nashville, 19 mi away | 24/7 | Emergencies |
| 4 | Donelson Air Service Experts | 57 | 4.8★ (5,469) | Nashville, 18 mi away | 24/7 | Most reviews |
| 5 | Atlas | 56 | 4.8★ (36) | Goodlettsville, 6 mi away | Sat · Evenings | — |
| 6 | Crawl Space Ninja | 55 | 4.9★ (277) | Lebanon, 21 mi away | Sat | — |
| 7 | The Drywall Guy'S | 55 | 4.8★ (197) | Nashville, 20 mi away | Sat | — |
| 8 | Zenith Insulation | 54 | 4.9★ (39) | Nashville, 13 mi away | Sat · Evenings | — |
| 9 | iFOAM Insulation | 54 | 4.7★ (38) | Nashville, 18 mi away | Sat · Sun · Evenings | — |
| 10 | 31-W Insulation | 54 | 4.0★ (24) | Goodlettsville, 3 mi away | Sat | — |
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: 5.0★ from 528 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 20 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 5,388 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 19 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 439 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 18 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 5,469 Google reviews, the most in Millersville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goodlettsville, 6 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 21 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 277 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 20 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 197 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 18 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goodlettsville, 3 mi away
Ranked #10 because of its Google rating and trade focus: 4.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenbrier, 4 mi away
Ranked #11 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 Brentwood, 13 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brentwood, 5 mi away
Ranked #13 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 Brentwood, 15 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goodlettsville, 13 mi away
Ranked #15 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 White House, 7 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 19 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashville, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brentwood, 18 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goodlettsville, 3 mi away
Ranked #20 because of its Google rating and trade focus: 3.8★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Springfield, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Nashville, 16 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 57 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hendersonville, 9 mi away
Ranked #23 because of its Google rating and trade focus: 3.1★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Nashville, 16 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hendersonville, 20 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
National price ranges in USD, not adjusted for Millersville. 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 63 Millersville 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 Millersville 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 |