22 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Central: Koala Insulation of Greenville, CR Score 58/100; 4.9★ from 444 Google reviews.
Best for emergencies (open 24/7): Atwood & Son, posts 24/7 hours; ranked #2 of 22.
Most-reviewed: IES Roofing Services, 131 Google reviews at 4.9★, the most of 22 ranked after Koala Insulation of Greenville; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
22 Central insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 8 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.9★ across 22 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Koala Insulation of Greenville | 58 | 4.9★ (444) | Piedmont, 19 mi away | — | Overall |
| 2 | Atwood & Son | 54 | 4.4★ (14) | Greenville, 21 mi away | 24/7 | Emergencies |
| 3 | C & M Insulation LLC | 53 | 4.4★ (16) | Anderson, 12 mi away | Sat | — |
| 4 | Glenco Foam & Insulation | 53 | 5.0★ (14) | Easley, 7 mi away | — | — |
| 5 | Alpha Spray Foam Insulation & Crawlspace Encapsulation Greenville SC | 53 | 5.0★ (24) | Greenville, 20 mi away | Sat | — |
| 6 | South Carolina Spray Foam Insulation | 52 | 5.0★ (10) | Anderson, 16 mi away | Sat | — |
| 7 | Discount Crawl Space | 51 | 5.0★ (19) | Seneca, 1 mi away | Sat | — |
| 8 | All In One Insulation | 51 | 3.9★ (36) | Greenville, 22 mi away | — | — |
| 9 | Greenville Precision | 50 | 5.0★ (18) | Greenville, 22 mi away | — | — |
| 10 | Extreme Spray Foam of Anderson | 50 | 5.0★ (9) | Anderson, 16 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 review volume: 4.9★ from 444 Google reviews, the most in Central.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 21 mi away
Ranked #2 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 12 mi away
Ranked #3 because of its Google rating and trade focus: 4.4★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Easley, 7 mi away
Ranked #4 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 Greenville, 20 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 16 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seneca, 1 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Water damage restoration service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 22 mi away
Ranked #8 because of its Google rating and trade focus: 3.9★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Greenville, 22 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 16 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Seneca, 11 mi away
Ranked #11 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Berea, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 21 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ 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 Greenville, 24 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Piedmont, 22 mi away
Ranked #15 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 21 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 131 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 11 mi away
Ranked #17 because of its Google rating and trade focus: 3.5★ from 27 Google reviews, listed on Google as “Interior construction contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 24 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Piedmont, 21 mi away
Ranked #19 because of its Google rating and trade focus: 3.4★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gantt, 16 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Berea, 25 mi away
Ranked #21 because of its Google rating and trade focus: 1.6★ from 56 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Fountain Inn, 24 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
17 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 |
|---|---|---|
| Bernoulli Insulation Contractors, Inc. | 24 mi | |
| Emid | 12 mi | |
| Foam It | 13 mi | |
| Foothills Insulation Inc | 19 mi | |
| Galloway Bell Inc | 5.0★ (1) | 18 mi |
| Galloway Insulation | 5.0★ (1) | 21 mi |
| Glenco Foam & Insulation, Inc | 17 mi | |
| Hot Attic Services Pro | 23 mi | |
| Insulation Commandos of Greenville | 24 mi | |
| Matias Insulation Service | 5.0★ (1) | 23 mi |
| SprayTech Spray Foam | 24 mi | |
| The Spray Foam Insulation Specialists | 23 mi | |
| Total Comfort Installations | 10 mi | |
| Total Comfort Installations (TCI) | 5 mi | |
| Trane The Wood Company Electrical Hvac Insulation | 15 mi | |
| Vernon Insulation Co | 5.0★ (1) | 23 mi |
| Wood Insulating Inc | 10 mi |
National price ranges in USD, not adjusted for Central. 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 22 Central 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 Central 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 |