35 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Greenville: Crawl Space Brothers, CR Score 94/100; 4.9★ from 210 Google reviews; open 24/7.
Best for emergencies (open 24/7): Southern Industries Home Improvements, posts 24/7 hours; ranked #2 of 35.
Most-reviewed: Southern Industries Home Improvements, 713 Google reviews at 4.6★, the most of 35 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
35 Greenville insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 18 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.8★ across 35 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawl Space Brothers | 94 | 4.9★ (210) | Greenville | 24/7 | Overall |
| 2 | Southern Industries Home Improvements | 87 | 4.6★ (713) | Greenville | 24/7 | Emergencies, Most reviews |
| 3 | Comfort Shield Insulation | 86 | 4.8★ (40) | Greenville | Sat · Sun · Evenings | — |
| 4 | Atwood & Son | 85 | 4.4★ (14) | Greenville | 24/7 | — |
| 5 | A-1 Insulation | 83 | 4.8★ (56) | Greenville | Sat | — |
| 6 | Ace Handyman Services Upstate South Carolina and Greenville | 83 | 4.9★ (533) | Taylors, 6 mi away | — | — |
| 7 | Koala Insulation of Greenville | 83 | 4.9★ (444) | Piedmont, 6 mi away | — | — |
| 8 | Electrolock Inc | 83 | 4.8★ (10) | Greenville | — | — |
| 9 | Alpha Spray Foam Insulation & Crawlspace Encapsulation Greenville SC | 82 | 5.0★ (24) | Greenville | Sat | — |
| 10 | Upstate Home Maintenance Services LLC | 81 | 4.9★ (160) | Greer, 19 mi away | Sat · Evenings | — |
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: 4.9★ from 210 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #2 because of its Google rating and review volume: 4.6★ from 713 Google reviews, the most Google reviews on this list (713).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #3 because of its Google rating and trade focus: 4.8★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #4 because of its Google rating and availability: 4.4★ from 14 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #5 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Taylors, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 533 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Piedmont, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 444 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #8 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Greenville
Ranked #9 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greer, 19 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #11 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #12 because of its Google rating and availability: 4.4★ from 93 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #13 because of its Google rating and trade focus: 3.9★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Greer, 15 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Simpsonville, 8 mi away
Ranked #15 because of its Google rating and availability: 4.1★ from 38 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #16 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Berea, 3 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Simpsonville, 13 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 90 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #19 because of its Google rating and trade focus: 4.6★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville
Ranked #20 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 Greenville
Ranked #21 because of its Google rating and review volume: 4.9★ from 131 Google reviews, 131 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Piedmont, 9 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greer, 5 mi away
Ranked #23 because of its Google rating and trade focus: 1.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Anderson, 25 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Greenville
Ranked #25 because of its Google rating and trade focus: 3.8★ from 20 Google reviews, listed on Google as “Gutter cleaning service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #35, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | C & M Insulation LLC | 74 | 4.4★ (16) | 23 mi |
| 27 | Blue Ridge Building Products | 72 | 4.8★ (11) | 15 mi |
| 28 | Gale Contractor Services | 72 | 3.4★ (17) | 5 mi |
| 29 | Glenco Foam & Insulation | 71 | 5.0★ (14) | 20 mi |
| 30 | Extreme Spray Foam of Spartanburg | 70 | 5.0★ (11) | 24 mi |
| 31 | Bonham Insulating Company | 70 | 4.6★ (22) | 24 mi |
| 32 | Sopko Solar | 70 | 5.0★ (9) | 13 mi |
| 33 | Palmetto Gutters & Insulation | 69 | 5.0★ (12) | 24 mi |
| 34 | Thing | 66 | 1.6★ (56) | 3 mi |
| 35 | My Energy Masters | 63 | 5.0★ (4) | 10 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 |
|---|---|---|
| AdvantaClean | 4.6★ (41) | In Greenville |
| Atomic Exteriors | 4.9★ (58) | In Greenville |
| Beemer KangaRoof | 4.9★ (314) | In Greenville |
| Dolakeh Gono Co. | 5.0★ (2) | In Greenville |
| Eastergard Heating & AC Repair | 4.9★ (456) | In Greenville |
| Exterior Specialists | 4.5★ (28) | In Greenville |
| Freedom Interiors Group | 5.0★ (3) | In Greenville |
| G&S Services | 5.0★ (1) | In Greenville |
| Galloway Insulation | 5.0★ (1) | In Greenville |
| Greenwood Inc | 3.6★ (9) | In Greenville |
| Home Genius Exteriors | 4.9★ (145) | In Greenville |
| HydroHelp911 Crawl Space & Foundation Repair | 5.0★ (1) | In Greenville |
| Insulation Commandos of Greenville | In Greenville | |
| Matias Insulation Service | 5.0★ (1) | In Greenville |
| Sears Heating and Air Conditioning | 1.0★ (1) | In Greenville |
| SprayTech Spray Foam | In Greenville | |
| Statewide Roofing Specialist | 4.7★ (12) | In Greenville |
| Taylors Window & Screen | 4.6★ (423) | In Greenville |
| Upstate Crawl Spaces | 4.9★ (37) | In Greenville |
| Vernon Insulation Co | 5.0★ (1) | In Greenville |
National price ranges in USD, not adjusted for Greenville. 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 35 Greenville 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 Greenville 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 |