10 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oak Island: Certified Spray Foam, CR Score 58/100; 4.9★ from 51 Google reviews; open evenings.
Best for emergencies (open 24/7): Watson's Drywall & Home Improvement LLC, posts 24/7 hours; ranked #4 of 10.
Most-reviewed: Advanced Air and Water Solutions, Inc., 141 Google reviews at 4.8★, the most of 10 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
10 Oak Island insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.8★ across 10 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Certified Spray Foam | 58 | 4.9★ (51) | Boiling Spring Lakes, 8 mi away | Evenings | Overall |
| 2 | Sea Spray Foam Insulation | 56 | 5.0★ (4) | Oak Island | Sat | — |
| 3 | All About Energy Solutions | 55 | 4.5★ (129) | Wilmington, 21 mi away | — | — |
| 4 | Watson's Drywall & Home Improvement LLC | 55 | 4.8★ (33) | Boiling Spring Lakes, 11 mi away | 24/7 | Emergencies |
| 5 | Crawlspace Maniac | 53 | 5.0★ (21) | Wilmington, 19 mi away | — | — |
| 6 | Stealth Restoration Company, LLC | 52 | 5.0★ (20) | Boiling Spring Lakes, 11 mi away | Sat · Sun | — |
| 7 | CBS Insulation Inc | 51 | 4.4★ (14) | Little River, 18 mi away | — | — |
| 8 | North Carolina Spray Foam Insulation | 51 | 5.0★ (13) | Wilmington, 24 mi away | — | — |
| 9 | Advanced Air and Water Solutions, Inc. | 51 | 4.8★ (141) | Wilmington, 22 mi away | — | Most reviews |
| 10 | Eastern Insulation | 47 | 2.4★ (11) | Wilmington, 25 mi away | — | — |
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: 4.9★ from 51 Google reviews, listed on Google as “Insulation contractor”.
Based in Oak Island
Ranked #2 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Wilmington, 21 mi away
Ranked #3 because of its Google rating and trade focus: 4.5★ from 129 Google reviews, listed on Google as “Insulation contractor”.
Based in Boiling Spring Lakes, 11 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 33 Google reviews.
Based in Wilmington, 19 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based in Boiling Spring Lakes, 11 mi away
Ranked #6 because of its Google rating and review volume: 5.0★ from 20 Google reviews.
Based in Little River, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based in Wilmington, 24 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based in Wilmington, 22 mi away
Ranked #9 because of its Google rating and review volume: 4.8★ from 141 Google reviews, the most in Oak Island.
Based in Wilmington, 25 mi away
Ranked #10 because of its Google rating and trade focus: 2.4★ from 11 Google reviews, listed on Google as “Insulation contractor”.
10 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 |
|---|---|---|
| American Builders Pro | 5.0★ (2) | In Oak Island |
| Brunswick Insulation Inc | 5.0★ (2) | 25 mi |
| C L Smith Construction | 4.8★ (4) | In Oak Island |
| Christopher Morrison Construction Inc | 5.0★ (2) | In Oak Island |
| Corbett Enterprises | 23 mi | |
| Fulford Heating & Cooling | 4.8★ (252) | In Oak Island |
| Fulford Heating & Cooling | 4.9★ (11) | In Oak Island |
| Ken's Heating & Air Conditioning | 4.8★ (23) | In Oak Island |
| RITE WAY INSULATION LLC | 24 mi | |
| Tricoast Insulation | 25 mi |
National price ranges in USD, not adjusted for Oak 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 10 Oak 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 Oak 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 |