58 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rock Hill: Crawl Space Brothers, CR Score 88/100; 5.0★ from 309 Google reviews; open 24/7.
Best for emergencies (open 24/7): Koala Insulation of Greater Charlotte, posts 24/7 hours; ranked #2 of 58.
Most-reviewed: GSM Services, 3,506 Google reviews at 4.9★, the most of 58 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
58 Rock Hill insulation contractors are ranked here by CR Score, from 8 published factors. 10 are open 24/7, 34 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.9★ across 58 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawl Space Brothers | 88 | 5.0★ (309) | Charlotte, 20 mi away | 24/7 | Overall |
| 2 | Koala Insulation of Greater Charlotte | 86 | 4.9★ (86) | Charlotte, 16 mi away | 24/7 | Emergencies |
| 3 | Crawl Space Brothers | 83 | 4.9★ (52) | Matthews, 22 mi away | 24/7 | — |
| 4 | GSM Services | 83 | 4.9★ (3,506) | Gastonia, 25 mi away | 24/7 | Most reviews |
| 5 | Simon Quality Construction | 83 | 5.0★ (166) | Charlotte, 21 mi away | Sat · Sun · Evenings | — |
| 6 | iFOAM Insulation | 81 | 4.9★ (29) | Fort Mill, 13 mi away | — | — |
| 7 | Crawl Space Ninja of Charlotte | 81 | 4.8★ (125) | Stallings, 23 mi away | Sat · Sun | — |
| 8 | Behr Insulation | 81 | 5.0★ (73) | Matthews, 24 mi away | Sat · Sun · Evenings | — |
| 9 | Home Shield Insulation of Charlotte | 80 | 4.9★ (136) | Charlotte, 14 mi away | Sat · Evenings | — |
| 10 | Koala Insulation of Greater South Charlotte | 80 | 4.4★ (18) | Matthews, 22 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 availability: 5.0★ from 309 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 16 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 86 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Matthews, 22 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 52 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gastonia, 25 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 3,506 Google reviews, the most Google reviews on this list (3,506).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 21 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 166 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fort Mill, 13 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Stallings, 23 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 125 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Matthews, 24 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 136 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Matthews, 22 mi away
Ranked #10 because of its Google rating and availability: 4.4★ from 18 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 15 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Matthews, 23 mi away
Ranked #12 because of its Google rating and availability: 4.8★ from 215 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rock Hill
Ranked #13 because of its Google rating and review volume: 4.9★ from 184 Google reviews, 184 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rock Hill
Ranked #14 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 17 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 73 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gastonia, 17 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 17 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 6 of 8 factors; credentials and recency not yet collected.
Based in Monroe, 23 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 19 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 19 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wesley Chapel, 9 mi away
Ranked #22 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 Charlotte, 19 mi away
Ranked #23 because of its Google rating and review volume: 4.7★ from 526 Google reviews, 526 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 16 mi away
Ranked #24 because of its Google rating and review volume: 4.7★ from 2,444 Google reviews, 2,444 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charlotte, 23 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 66 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 58 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 |
|---|---|---|
| ABC Insulation | 23 mi | |
| American Basement and Crawl | 5.0★ (1) | 23 mi |
| Color Master Contractors | 13 mi | |
| DB Drywall and painting of York County | 5.0★ (1) | In Rock Hill |
| DBI insulation service | 22 mi | |
| GreenPro Moisture Remediation | 5.0★ (1) | 1 mi |
| Heritage Encon Group Inc | 2.0★ (1) | 22 mi |
| Home Free Home Inspection LLC | 5.0★ (1) | 5 mi |
| M.M.I. Moisture, Mold, Insulation | 5.0★ (2) | 13 mi |
| Mattor Spray Foam Insulation LLC | 25 mi | |
| Metrolina Insulation | 3.0★ (1) | 24 mi |
| Palmetto Roofing Siding Gutters | 4.8★ (105) | In Rock Hill |
| PCA LLC | 23 mi | |
| Precise Thermal | 15 mi | |
| Ryerson Brothers Construction, LLC | 5.0★ (81) | In Rock Hill |
| Uniquely Green Insulation of Charlotte NC | 23 mi | |
| Unitherm | 4.0★ (2) | 22 mi |
| vaporvaultenclosures | 7 mi | |
| Will's Insulation LLC | 23 mi | |
| Wills Insulation LLC | 5.0★ (2) | 23 mi |
National price ranges in USD, not adjusted for Rock Hill. 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 58 Rock Hill 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 Rock Hill 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 |