28 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Clay: Alabama Roofing Professionals, CR Score 84/100; 4.9★ from 376 Google reviews; open 24/7.
Best for emergencies (open 24/7): Comfort Dynamics Cooling, Heating, Plumbing & Electrical, posts 24/7 hours; ranked #2 of 28.
Most-reviewed: OnTime Service, 8,308 Google reviews at 4.9★, the most of 28 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
28 Clay insulation contractors are ranked here by CR Score, from 8 published factors. 5 are open 24/7, 14 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.9★ across 28 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Alabama Roofing Professionals | 84 | 4.9★ (376) | Birmingham, 4 mi away | 24/7 | Overall |
| 2 | Comfort Dynamics Cooling, Heating, Plumbing & Electrical | 80 | 4.7★ (2,254) | Birmingham, 23 mi away | 24/7 | Emergencies |
| 3 | Frosty HVAC Services, Generators | 79 | 5.0★ (149) | Attalla, 20 mi away | 24/7 | — |
| 4 | D & D Insulation LLC | 77 | 5.0★ (5) | Clay | Sun · Evenings | — |
| 5 | Vault Spray Foam | 77 | 5.0★ (103) | Hoover, 24 mi away | Sat · Evenings | — |
| 6 | Alabama Spray Foam Insulation | 77 | 5.0★ (50) | Birmingham, 19 mi away | Sat | — |
| 7 | OnTime Service | 77 | 4.9★ (8,308) | Hoover, 23 mi away | Sat · Evenings | Most reviews |
| 8 | SouthernDry Waterproofing & Foundation Repair Specialist | 76 | 4.9★ (444) | Pell City, 21 mi away | Sat · Sun | — |
| 9 | J & B Construction, Llc | 76 | 4.7★ (49) | Cullman, 18 mi away | 24/7 | — |
| 10 | Southern Industries Home Improvements | 76 | 4.6★ (367) | Birmingham, 24 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: 4.9★ from 376 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 23 mi away
Ranked #2 because of its Google rating and availability: 4.7★ from 2,254 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Attalla, 20 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 149 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clay
Ranked #4 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 Hoover, 24 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 19 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hoover, 23 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 8,308 Google reviews, the most Google reviews on this list (8,308).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pell City, 21 mi away
Ranked #8 because of its Google rating and availability: 4.9★ from 444 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman, 18 mi away
Ranked #9 because of its Google rating and availability: 4.7★ from 49 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 24 mi away
Ranked #10 because of its Google rating and availability: 4.6★ from 367 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 15 mi away
Ranked #11 because of its Google rating and trade focus: 3.7★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Birmingham, 6 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Irondale, 12 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 452 Google reviews, 452 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 14 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Vestavia Hills, 21 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 218 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gardendale, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bessemer, 10 mi away
Ranked #17 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 Birmingham, 15 mi away
Ranked #18 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 Birmingham, 20 mi away
Ranked #19 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 Oneonta, 19 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 16 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 22 mi away
Ranked #22 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 Birmingham, 16 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Pest control service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 16 mi away
Ranked #24 because of its Google rating and trade focus: 4.3★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Alabaster, 24 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 10 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 #28, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Ace Handyman Services Birmingham NE | 69 | 4.9★ (303) | 20 mi |
| 27 | Star Insulation | 66 | 5.0★ (3) | 10 mi |
| 28 | Affordable Landscaping And Remodeling | 65 | 4.6★ (5) | 9 mi |
18 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 |
|---|---|---|
| Alabama Roofing Contractors | 19 mi | |
| Building Materials Warehouse | 21 mi | |
| Cary Insulation | 15 mi | |
| Dixie Insulation Inc | 20 mi | |
| Elevation Restoration LLC | 5.0★ (1) | 22 mi |
| Foam Insulation Tech LLC | 21 mi | |
| GPI LLC. | 9 mi | |
| Happeez Air Conditioning and Heating | 5.0★ (1) | 13 mi |
| National Insulation Contractors . | 9 mi | |
| On Call Heating & Air LLC | 4.2★ (5) | In Clay |
| P&P Installation | 13 mi | |
| Perfection Insulation | 19 mi | |
| Shook & Fletcher Insulation Co., | 5.0★ (2) | 17 mi |
| Smart Living Home & Energy | 23 mi | |
| Sunbelt Industrial Company, Inc. | 1.0★ (1) | 23 mi |
| Synergy Drywall & Acoustical Contractors | 18 mi | |
| Tamer Services | 4 mi | |
| White's Urethane Foam Applctrs | In Clay |
National price ranges in USD, not adjusted for Clay. 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 28 Clay 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 Clay 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 |