34 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Parker: Crawl Space Brothers, CR Score 91/100; 4.9★ from 210 Google reviews; open 24/7.
Best for emergencies (open 24/7): Atwood & Son, posts 24/7 hours; ranked #3 of 34.
Most-reviewed: Southern Industries Home Improvements, 713 Google reviews at 4.6★, the most of 34 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
34 Parker insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 19 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.8★ across 34 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawl Space Brothers | 91 | 4.9★ (210) | Greenville, 10 mi away | 24/7 | Overall |
| 2 | Comfort Shield Insulation | 84 | 4.8★ (40) | Greenville, 5 mi away | Sat · Sun · Evenings | — |
| 3 | Atwood & Son | 84 | 4.4★ (14) | Greenville, 1 mi away | 24/7 | Emergencies |
| 4 | Southern Industries Home Improvements | 84 | 4.6★ (713) | Greenville, 10 mi away | 24/7 | Most reviews |
| 5 | Koala Insulation of Greenville | 83 | 4.9★ (444) | Piedmont, 5 mi away | — | — |
| 6 | Ace Handyman Services Upstate South Carolina and Greenville | 83 | 4.9★ (533) | Taylors, 9 mi away | — | — |
| 7 | Alpha Spray Foam Insulation & Crawlspace Encapsulation Greenville SC | 81 | 5.0★ (24) | Greenville, 2 mi away | Sat | — |
| 8 | Upstate Home Maintenance Services LLC | 80 | 4.9★ (160) | Greer, 22 mi away | Sat · Evenings | — |
| 9 | First Class Insulation | 78 | 5.0★ (31) | Greer, 15 mi away | Sat | — |
| 10 | A-1 Insulation | 78 | 4.8★ (56) | Greenville, 20 mi away | Sat | — |
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, 5 mi away
Ranked #2 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, 1 mi away
Ranked #3 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, 10 mi away
Ranked #4 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 Piedmont, 5 mi away
Ranked #5 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 Taylors, 9 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 Greenville, 2 mi away
Ranked #7 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, 22 mi away
Ranked #8 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 Greer, 15 mi away
Ranked #9 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 Greenville, 20 mi away
Ranked #10 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 Greenville, 2 mi away
Ranked #11 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 Greenville, 6 mi away
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, 2 mi away
Ranked #13 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 Simpsonville, 11 mi away
Ranked #14 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 Berea, 6 mi away
Ranked #15 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 Greenville, 20 mi away
Ranked #16 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, 18 mi away
Ranked #17 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 Simpsonville, 17 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, 3 mi away
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 Piedmont, 9 mi away
Ranked #20 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 Anderson, 24 mi away
Ranked #21 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 Anderson, 21 mi away
Ranked #22 because of its Google rating and trade focus: 4.4★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Greenville, 5 mi away
Ranked #23 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 Greenville, 10 mi away
Ranked #24 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 Greer, 9 mi away
Ranked #25 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.
National price ranges in USD, not adjusted for Parker. 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 34 Parker 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 Parker 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 |