14 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cullman: Thermospray LLC, CR Score 86/100; 5.0★ from 37 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): J & B Construction, Llc, posts 24/7 hours; ranked #2 of 14.
Most-reviewed: Northwest Exterminating - Cullman, 115 Google reviews at 4.7★, the most of 14 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
14 Cullman insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 7 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.7★ across 14 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Thermospray LLC | 86 | 5.0★ (37) | Cullman | Sat | Overall |
| 2 | J & B Construction, Llc | 86 | 4.7★ (49) | Cullman | 24/7 | Emergencies |
| 3 | Alabama Spray Foam | 85 | 4.9★ (31) | Cullman | Sat | — |
| 4 | Cullman Spray Foam Insulation | 85 | 5.0★ (25) | Cullman | Sat | — |
| 5 | Northwest Exterminating - Cullman | 84 | 4.7★ (115) | Cullman | — | Most reviews |
| 6 | Greg's insulation | 84 | 4.3★ (7) | Cullman | Sat · Sun · Evenings | — |
| 7 | Bama Insulation | 82 | 5.0★ (3) | Cullman | — | — |
| 8 | Master Pro Insulation, LLC | 81 | 4.4★ (7) | Cullman | 24/7 | — |
| 9 | Eagle Pro Heating - Cooling - Insulation (Formerly Murphy Heating and Cooling) | 80 | 4.6★ (16) | Hartselle, 21 mi away | 24/7 | — |
| 10 | Alabama Insulation | 77 | 4.7★ (23) | Birmingham, 25 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 trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #2 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 Cullman
Ranked #3 because of its Google rating and trade focus: 4.9★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #4 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #5 because of its Google rating and review volume: 4.7★ from 115 Google reviews, the most Google reviews on this list (115).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #6 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #7 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Cullman
Ranked #8 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hartselle, 21 mi away
Ranked #9 because of its Google rating and availability: 4.6★ from 16 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Birmingham, 25 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #11 because of its Google rating and trade focus: 4.9★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Athens, 21 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cullman
Ranked #13 because of its Google rating and review volume: 4.1★ from 36 Google reviews, 36 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arab, 22 mi away
Ranked #14 because of its Google rating and review volume: 4.4★ from 10 Google reviews, 10 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
12 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 |
|---|---|---|
| A-1 Siding, Windows and Roofing Company LLC | 4.8★ (24) | In Cullman |
| Alabama Spray Foam LLC | 5.0★ (1) | 15 mi |
| Bullard Roofing | 4.9★ (396) | In Cullman |
| Foam Rite Of N.Alabama | In Cullman | |
| Legacy Companies Alabama | 5.0★ (1) | In Cullman |
| Marcas Insulation ITX | In Cullman | |
| Patriot Insulation | In Cullman | |
| RBC Insulation | 19 mi | |
| Richard Electric Co | 4.6★ (143) | In Cullman |
| Trinity Custom Homes | 4.4★ (30) | In Cullman |
| Tru Blu Energy Efficiency Solutions | In Cullman | |
| TruBlu Energy Efficiency Solutions, LLC | 5.0★ (9) | In Cullman |
National price ranges in USD, not adjusted for Cullman. 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 14 Cullman 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 Cullman 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 |