84 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Belmont: Crawl Space Brothers, CR Score 62/100; 5.0★ from 309 Google reviews; open 24/7.
Best for emergencies (open 24/7): GSM Services, posts 24/7 hours; ranked #2 of 84.
Most-reviewed: GSM Services, 3,506 Google reviews at 4.9★, the most of 84 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
84 Belmont insulation contractors are ranked here by CR Score, from ten published factors. 13 are open 24/7, 43 open Saturdays and 23 open Sundays, based on posted hours. The median Google rating is 4.9★ across 84 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawl Space Brothers | 62 | 5.0★ (309) | Charlotte, 12 mi away | 24/7 | Overall |
| 2 | GSM Services | 60 | 4.9★ (3,506) | Gastonia, 8 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Simon Quality Construction | 60 | 5.0★ (166) | Charlotte, 10 mi away | Sat · Sun · Evenings | — |
| 4 | Koala Insulation of Greater Charlotte | 59 | 4.9★ (86) | Charlotte, 12 mi away | 24/7 | — |
| 5 | The CrawlSpace King | 59 | 5.0★ (251) | Shelby, 23 mi away | 24/7 | — |
| 6 | Standard Insulating Company | 57 | 5.0★ (620) | Charlotte, 15 mi away | — | — |
| 7 | Charlotte Pros Spray Foam Insulation | 57 | 5.0★ (47) | Belmont | — | — |
| 8 | Crawl Space Brothers | 57 | 4.9★ (52) | Matthews, 20 mi away | 24/7 | — |
| 9 | Blue Ridge Insulation | 57 | 5.0★ (15) | Belmont | Sat · Evenings | — |
| 10 | Fort Mill Spray Foam Insulation | 57 | 4.9★ (14) | Gastonia, 5 mi away | Sat · Sun | — |
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 309 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gastonia, 8 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 3,506 Google reviews, the most in Belmont.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 10 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 166 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 12 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Shelby, 23 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 251 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 15 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 620 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belmont
Ranked #7 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Matthews, 20 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 52 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belmont
Ranked #9 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gastonia, 5 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belmont
Ranked #11 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 136 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 10 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Matthews, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 12 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charlotte, 5 mi away
Ranked #18 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stallings, 23 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 125 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belmont
Ranked #20 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 Charlotte, 6 mi away
Ranked #21 because of its Google rating and review volume: 4.7★ from 526 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belmont
Ranked #22 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Mill, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Gastonia, 18 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornelius, 19 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 900 Google reviews.
Based on 8 of 10 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 84 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 |
|---|---|---|
| American Basement and Crawl | 5.0★ (1) | 24 mi |
| Dry Pro Foundation and Crawlspace Specialists | 4.9★ (2,308) | In Belmont |
| F.S. INSULATION LLC | 5.0★ (1) | 22 mi |
| GreenPro Moisture Remediation | 5.0★ (1) | 21 mi |
| Heritage Encon Group Inc | 2.0★ (1) | 3 mi |
| Holliday Crawlspace Solutions LLC | 5.0★ (1) | 16 mi |
| Home Free Home Inspection LLC | 5.0★ (1) | 22 mi |
| M.M.I. Moisture, Mold, Insulation | 5.0★ (2) | 10 mi |
| Metrolina Insulation | 3.0★ (1) | In Belmont |
| Mr. Crawl Space General Contracting | 4.9★ (135) | In Belmont |
| MultiService Industrial | 5.0★ (1) | 14 mi |
| Pacor Insulation | 5.0★ (1) | 12 mi |
| Performance Contracting Inc. | 2.5★ (2) | 17 mi |
| Perrigo Heating & Air Conditioning Inc | 4.6★ (20) | In Belmont |
| R.S. BLYTHE, INC. | 1.0★ (1) | 10 mi |
| Styro Systems Carolinas | 4.0★ (1) | 17 mi |
| United Energy Solutions | 3.0★ (2) | 13 mi |
| Unitherm | 4.0★ (2) | 3 mi |
| Vastago Insulation | 5.0★ (1) | 6 mi |
| Wills Insulation LLC | 5.0★ (2) | 12 mi |
National price ranges in USD, not adjusted for Belmont. 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 84 Belmont 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 Belmont 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 |