27 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Wilmington Island: Performance Energy LLC, CR Score 59/100; 5.0★ from 81 Google reviews; open Saturdays until 8 PM.
Best for emergencies (open 24/7): Southern Industries Home Improvements, posts 24/7 hours; ranked #4 of 27.
Most-reviewed: Your Exterior Pros, 496 Google reviews at 4.8★, the most of 27 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
27 Wilmington Island insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 6 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 27 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Performance Energy LLC | 59 | 5.0★ (81) | Savannah, 10 mi away | Sat · Evenings | Overall |
| 2 | The Energy Penguin | 58 | 5.0★ (71) | Port Wentworth, 14 mi away | Sat | — |
| 3 | Koala Insulation of Savannah | 57 | 4.9★ (83) | Port Wentworth, 8 mi away | — | — |
| 4 | Southern Industries Home Improvements | 56 | 4.8★ (406) | Pooler, 19 mi away | 24/7 | Emergencies |
| 5 | Savannah Spray Foam Insulation | 55 | 5.0★ (28) | Port Wentworth, 15 mi away | Sat | — |
| 6 | On Time Air HVAC | 54 | 5.0★ (221) | Savannah, 5 mi away | — | — |
| 7 | Custom Insulation Inc | 54 | 3.4★ (7) | Savannah, 6 mi away | — | — |
| 8 | Ecofoam Insulation and Coatings | 54 | 4.8★ (76) | Hardeeville, 20 mi away | — | — |
| 9 | Your Exterior Pros | 54 | 4.8★ (496) | Savannah, 10 mi away | — | Most reviews |
| 10 | Healthy ~ Crawlspace | 53 | 5.0★ (143) | Savannah, 7 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 trade focus: 5.0★ from 81 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Wentworth, 14 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Wentworth, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pooler, 19 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 406 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Wentworth, 15 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 5 mi away
Ranked #6 because of its Google rating and review volume: 5.0★ from 221 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 6 mi away
Ranked #7 because of its Google rating and trade focus: 3.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hardeeville, 20 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 10 mi away
Ranked #9 because of its Google rating and review volume: 4.8★ from 496 Google reviews, the most in Wilmington Island.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 7 mi away
Ranked #10 because of its Google rating and review volume: 5.0★ from 143 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 7 mi away
Ranked #12 because of its Google rating and review volume: 5.0★ from 39 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 15 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 334 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pooler, 18 mi away
Ranked #15 because of its Google rating and review volume: 4.8★ from 167 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 16 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pooler, 16 mi away
Ranked #18 because of its Google rating and trade focus: 4.6★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 20 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 23 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 320 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 25 mi away
Ranked #21 because of its Google rating and trade focus: 4.4★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 16 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hardeeville, 21 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Wentworth, 16 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hardeeville, 13 mi away
Ranked #25 because of its Google rating and trade focus: 2.4★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Wilmington Island. 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 27 Wilmington Island 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 Wilmington Island 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 |