17 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Calera: Comfort Dynamics Cooling, Heating, Plumbing & Electrical, CR Score 80/100; 4.7★ from 2,254 Google reviews; open 24/7.
Best for emergencies (open 24/7): Southern Industries Home Improvements, posts 24/7 hours; ranked #4 of 17.
Most-reviewed: OnTime Service, 8,308 Google reviews at 4.9★, the most of 17 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Calera insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 6 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 17 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Comfort Dynamics Cooling, Heating, Plumbing & Electrical | 80 | 4.7★ (2,254) | Birmingham, 24 mi away | 24/7 | Overall |
| 2 | Vault Spray Foam | 79 | 5.0★ (103) | Hoover, 19 mi away | Sat · Evenings | — |
| 3 | OnTime Service | 78 | 4.9★ (8,308) | Hoover, 21 mi away | Sat · Evenings | Most reviews |
| 4 | Southern Industries Home Improvements | 77 | 4.6★ (367) | Birmingham, 20 mi away | 24/7 | Emergencies |
| 5 | Hoover Spray Foam Insulation | 77 | 5.0★ (31) | Hoover, 19 mi away | Sat | — |
| 6 | Koala Insulation of Birmingham | 76 | 5.0★ (165) | Birmingham, 17 mi away | — | — |
| 7 | Eco Three | 74 | 4.9★ (218) | Vestavia Hills, 24 mi away | — | — |
| 8 | Bryars Spray Foam | 73 | 5.0★ (30) | Tuscaloosa, 21 mi away | — | — |
| 9 | Ssd Insulation Inc | 72 | 4.8★ (4) | Chelsea, 16 mi away | — | — |
| 10 | iFoam | 71 | 5.0★ (3) | Birmingham, 20 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Calera
Based in Birmingham, 24 mi away
Ranked #1 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 Hoover, 19 mi away
Ranked #2 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 Hoover, 21 mi away
Ranked #3 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 Birmingham, 20 mi away
Ranked #4 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 Hoover, 19 mi away
Ranked #5 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 Birmingham, 17 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 165 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Vestavia Hills, 24 mi away
Ranked #7 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 Tuscaloosa, 21 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chelsea, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Dry wall contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Birmingham, 20 mi away
Ranked #10 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 Alabaster, 23 mi away
Ranked #11 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.
Based in Pelham, 16 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 261 Google reviews, 261 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Alabaster, 18 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 6 of 8 factors; credentials and recency not yet collected.
Based in Pelham, 14 mi away
Ranked #14 because of its Google rating and trade focus: 3.5★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 23 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 303 Google reviews, 303 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bessemer, 24 mi away
Ranked #16 because of its Google rating and trade focus: 3.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Tuscaloosa, 25 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 58 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
14 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 |
|---|---|---|
| Active Air, Inc. | 4.8★ (41) | In Calera |
| Alabama Roofing Contractors | 24 mi | |
| AM Drywall | In Calera | |
| Elevation Restoration LLC | 5.0★ (1) | 21 mi |
| Foam Insulation Tech LLC | 22 mi | |
| G&S Coating Systems | 14 mi | |
| Greg’s insulation | 22 mi | |
| K G Insulation | 5.0★ (1) | 7 mi |
| New Directions Insulations | 9 mi | |
| Smart Foam LLC | 5.0★ (1) | 4 mi |
| Smart Living Home & Energy | 23 mi | |
| Sunbelt Industrial Company, Inc. | 1.0★ (1) | 20 mi |
| Superior Heating and Cooling & Insulation | 5.0★ (1) | 24 mi |
| Tailored Foam | 18 mi |
National price ranges in USD, not adjusted for Calera. 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 17 Calera 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 Calera 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 |