10 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bay Saint Louis: Biloxi Spray Foam Insulation, CR Score 58/100; 5.0★ from 25 Google reviews; open Saturdays until 5 PM.
Most-reviewed: Quality Insulation, 17 Google reviews at 4.5★, the most of 10 ranked after Biloxi Spray Foam Insulation; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
10 Bay Saint Louis insulation contractors are ranked here by CR Score, from ten published factors. 4 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.5★ across 10 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Biloxi Spray Foam Insulation | 58 | 5.0★ (25) | Biloxi, 20 mi away | Sat | Overall |
| 2 | Bennett Insulation | 56 | 5.0★ (6) | Long Beach, 11 mi away | Sat · Sun · Evenings | — |
| 3 | Quality Insulation | 56 | 4.5★ (17) | Gulfport, 13 mi away | — | Most reviews |
| 4 | Mississippi Spray Foam Insulation | 53 | 4.7★ (12) | Gulfport, 20 mi away | — | — |
| 5 | Expert Insulation | 53 | 3.9★ (14) | Gulfport, 18 mi away | — | — |
| 6 | All Painting | 52 | 4.5★ (8) | Waveland, 4 mi away | Sat · Sun | — |
| 7 | C & S Insulation and Garage Doors | 52 | 4.1★ (9) | Picayune, 22 mi away | Sat | — |
| 8 | Gulf Coast RetroFoam | 52 | 3.4★ (5) | Diamondhead, 6 mi away | — | — |
| 9 | SUPERIOR INSULATION OF THE GULF COAST, LLC | 52 | 4.2★ (10) | Gulfport, 18 mi away | — | — |
| 10 | Atlas Clean LLC | 49 | 5.0★ (3) | Central, 23 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 5.0★ from 25 Google reviews, the most in Bay Saint Louis.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Long Beach, 11 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 13 mi away
Ranked #3 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 20 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 18 mi away
Ranked #5 because of its Google rating and trade focus: 3.9★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waveland, 4 mi away
Ranked #6 because of its Google rating and review volume: 4.5★ from 8 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Picayune, 22 mi away
Ranked #7 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Diamondhead, 6 mi away
Ranked #8 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 18 mi away
Ranked #9 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Central, 23 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 7 of 10 factors; credentials, recency and availability not yet collected.
National price ranges in USD, not adjusted for Bay Saint Louis. 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 10 Bay Saint Louis 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 Bay Saint Louis 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 |