33 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Decatur: Deep South Construction Pros, CR Score 62/100; 5.0★ from 225 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Higdon Service Heating, Cooling, Plumbing, posts 24/7 hours; ranked #2 of 33.
Most-reviewed: Conditioned Air Solutions, 2,796 Google reviews at 4.9★, the most of 33 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
33 Decatur insulation contractors are ranked here by CR Score, from ten published factors. 7 are open 24/7, 17 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.9★ across 33 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Deep South Construction Pros | 62 | 5.0★ (225) | Decatur | Sat · Evenings | Overall |
| 2 | Higdon Service Heating, Cooling, Plumbing | 61 | 4.9★ (1,855) | Decatur | 24/7 | Emergencies |
| 3 | Heartstrong Services | 60 | 5.0★ (471) | Huntsville, 12 mi away | Sat · Evenings | — |
| 4 | Southern Valley Insulation & Moisture Control LLC. | 59 | 5.0★ (61) | Decatur | Sat | — |
| 5 | Environmental Comfort Systems - Air Conditioning & Heating Solutions | 59 | 5.0★ (246) | Decatur | 24/7 | — |
| 6 | Decatur Spray Foam Insulation | 57 | 5.0★ (42) | Decatur | — | — |
| 7 | Conditioned Air Solutions | 56 | 4.9★ (2,796) | Huntsville, 22 mi away | 24/7 | Most reviews |
| 8 | Huntsville Spray Foam Pros | 56 | 5.0★ (43) | Huntsville, 22 mi away | 24/7 | — |
| 9 | iFOAM Insulation of Huntsville | 56 | 4.9★ (83) | Madison, 13 mi away | Sat | — |
| 10 | SPI - Specialty Products & Insulation, Inc. | 55 | 4.8★ (21) | Decatur | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 225 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #2 because of its Google rating and review volume: 4.9★ from 1,855 Google reviews.
Based in Huntsville, 12 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 471 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #4 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #5 because of its Google rating and review volume: 5.0★ from 246 Google reviews.
Based in Decatur
Ranked #6 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Insulation contractor”.
Based in Huntsville, 22 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 2,796 Google reviews, the most in Decatur.
Based in Huntsville, 22 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based in Madison, 13 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #10 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based in Cullman, 17 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #12 because of its Google rating and trade focus: 3.5★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Hartselle, 10 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based in Huntsville, 23 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Insulation contractor”.
Based in Decatur
Ranked #15 because of its Google rating and trade focus: 3.8★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based in Huntsville, 22 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 117 Google reviews, listed on Google as “Insulation contractor”.
Based in Huntsville, 13 mi away
Ranked #17 because of its Google rating and review volume: 4.5★ from 322 Google reviews.
Based in Decatur
Ranked #18 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Athens, 11 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in East Florence, 19 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Insulation contractor”.
Based in Athens, 11 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Athens, 9 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Painter”.
Based in Huntsville, 22 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based in Huntsville, 21 mi away
Ranked #24 because of its Google rating and review volume: 4.6★ from 150 Google reviews.
Based in Huntsville, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Insulation contractor”.
#1 to #25 are shown in full above. Here are #26 to #33, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | American Insulation | 49 | 3.3★ (12) | 22 mi |
| 27 | Eagle Insulation LLC | 49 | 3.1★ (10) | 22 mi |
| 28 | Southern Valley Services | 48 | 5.0★ (8) | 23 mi |
| 29 | Guthrie's Ace Handyman Services- Huntsville | 48 | 4.9★ (324) | 21 mi |
| 30 | Imagine Inc. - Stonecraft Construction & Truseal Insulation | 46 | 5.0★ (3) | 25 mi |
| 31 | 31-W Insulation | 46 | 3.1★ (26) | 22 mi |
| 32 | Green Brothers Services | 45 | 5.0★ (6) | 15 mi |
| 33 | Window Depot USA of Huntsville AL | 43 | 4.4★ (46) | 23 mi |
20 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 |
|---|---|---|
| Allied Foundation and Crawlspace Solutions | 3.9★ (45) | In Decatur |
| Cell-Pak Insulation | 5.0★ (1) | In Decatur |
| David Brothers Insulation | 11 mi | |
| Eagle Pro Heating - Cooling - Insulation Madison/Huntsville | 19 mi | |
| Eco Three | 5.0★ (2) | 25 mi |
| EcoLogical Insulation | 5.0★ (1) | 21 mi |
| Henry's Insulation | 5.0★ (1) | 21 mi |
| In And Out Insulation, LLC | In Decatur | |
| In And Out Insulation, LLC | 5.0★ (1) | 15 mi |
| J&L Spray Foam | 19 mi | |
| Legacy Companies Alabama | 5.0★ (1) | 21 mi |
| Mach Insulation | 22 mi | |
| Martinez Insulation | 23 mi | |
| Mr. Miller Insulation | 5.0★ (1) | 19 mi |
| MYNOR'S INSULATION | In Decatur | |
| North Alabama Insulation Co | 23 mi | |
| Quality Plus Production, Inc. | 14 mi | |
| Raydan Acoustical & Drywall Inc | 13 mi | |
| Seal Tight Insulation, LLC | 15 mi | |
| SRI Huntsville | 25 mi |
National price ranges in USD, not adjusted for Decatur. 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 33 Decatur 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 Decatur 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 |