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ContractorsRanked

Best Insulation Contractors in Wilmington, NC (2026)

25 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Wilmington: Coastal Insulations, CR Score 87/100; 5.0★ from 5 Google reviews; open 24/7.

  2. 4

    Best for emergencies (open 24/7): Ramon’s Tree Service, posts 24/7 hours; ranked #4 of 25.

  3. 2

    Most-reviewed: Koala Insulation of Coastal Carolina, 173 Google reviews at 4.9★, the most of 25 ranked; ranked #2.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

25 Wilmington insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 7 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.8★ across 25 rated businesses.

Top 10 insulation contractors in Wilmington at a glance

Top 10 insulation contractors in Wilmington at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Coastal Insulations875.0★ (5)Wilmington24/7Overall
2Koala Insulation of Coastal Carolina854.9★ (173)Wilmington—Most reviews
3Crawl Space Ninja of Wilmington854.9★ (131)Wilmington——
4Ramon’s Tree Service835.0★ (88)Leland, 18 mi away24/7Emergencies
5Carolina Building Products of Wilmington:833.9★ (10)Wilmington——
6Tatum Insulation III834.0★ (25)Leland, 4 mi away——
7Sahara Crawlspace and Pest834.9★ (68)Wilmington——
8All About Energy Solutions824.5★ (129)Wilmington——
9Wilmington Spray Foam Insulation815.0★ (22)Leland, 9 mi awaySat—
10Crawlspace Maniac805.0★ (21)Wilmington——

The 25 best insulation contractors in Wilmington, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

  1. Ranked #1 in Wilmington

    #1 Coastal Insulations

    Based in Wilmington

    87/100CR Score

    Ranked #1 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7004 Cape Harbor Dr apt k, Wilmington, NC 28411
    View profile for Coastal Insulations(828) 851-7749

  6. #6 Tatum Insulation III

    Based in Leland, 4 mi away

    83/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.

    Based on 5 of 8 factors; credentials, recency and availability not yet collected.

    • 4.0★ from 25 Google reviews
    Address
    1271 Cedar Hill Rd, Leland, NC 28451
    View profile for Tatum Insulation III(910) 371-2006

  7. #7 Sahara Crawlspace and Pest

    Based in Wilmington

    83/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 68 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    5131 Oleander Dr, Wilmington, NC 28403
    View profile for Sahara Crawlspace and Pest(910) 409-4906

  8. #8 All About Energy Solutions

    Based in Wilmington

    82/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.5★ from 129 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.5★ from 129 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    110 Portwatch Way #102, Wilmington, NC 28412
    View profile for All About Energy Solutions(910) 253-0170

  10. #10 Crawlspace Maniac

    Based in Wilmington

    80/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    7407 Carolina Beach Rd, Wilmington, NC 28412
    View profile for Crawlspace Maniac(910) 274-9825

  13. #13 HDA Insulation

    Based in Leland, 11 mi away

    79/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 33 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    9062 Black Chestnut Dr NE, Leland, NC 28451
    View profile for HDA Insulation(910) 617-1910

  14. #14 Certified Spray Foam

    Based in Boiling Spring Lakes, 19 mi away

    78/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 51 Google reviews
    Hours
    Mon 7 AM–7 PM · Tue 7 AM–7:30 PM · Wed–Fri 7 AM–7 PM · Sat–Sun closed
    Address
    8128 suite E River Rd SE, Southport, NC 28461
    View profile for Certified Spray Foam(910) 660-3335

  15. #15 Live Wire Powder Coating

    Based in Wilmington

    78/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.5★ from 14 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.5★ from 14 Google reviews
    Hours
    Mon–Thu 7:30 AM–4 PM · Fri 7:30 AM–3 PM · Sat–Sun closed
    Address
    2821 US-421, Wilmington, NC 28401
    View profile for Live Wire Powder Coating(910) 409-3569

  17. #17 Insulation Solutions

    Based in Leland, 19 mi away

    77/100CR Score

    Ranked #17 because of its Google rating and trade focus: 3.5★ from 4 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 3.5★ from 4 Google reviews
    Hours
    Mon–Sun 9 AM–6 PM
    View profile for Insulation Solutions(910) 261-0877

  20. #20 Ferguson Plumbing Supply

    Based in Wilmington

    76/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.0★ from 9 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    1925 Dawson St, Wilmington, NC 28403
    View profile for Ferguson Plumbing Supply(910) 763-3904

  23. #23 Eastern Insulation

    Based in Wilmington

    74/100CR Score

    Ranked #23 because of its Google rating and trade focus: 2.4★ from 11 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 2.4★ from 11 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1201 S 10th St, Wilmington, NC 28401
    View profile for Eastern Insulation(910) 251-1911

  24. #24 Colonial Materials

    Based in Wilmington

    72/100CR Score

    Ranked #24 because of its Google rating and review volume: 4.6★ from 22 Google reviews, 22 Google reviews.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.6★ from 22 Google reviews
    Hours
    Mon–Fri 6:30 AM–4 PM · Sat–Sun closed
    Address
    3651 US-421, Wilmington, NC 28401
    View profile for Colonial Materials(910) 675-3343

Also serving Wilmington

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.

Unranked insulation contractors serving Wilmington
BusinessGoogle ratingDistance
Brunswick Insulation Inc5.0★ (2)In Wilmington
Cape Fear Crawl Spaces5.0★ (78)In Wilmington
Crawlspace Fitness4.7★ (38)In Wilmington
Crawlspace Medic of Wilmington5.0★ (417)In Wilmington
Energy Catchers5.0★ (1)19 mi
Energy One of the Carolinas5.0★ (1)In Wilmington
Insulation Energy Systems Inc5.0★ (2)In Wilmington
LG Spray Foam Insulation LLC.4 mi
Mc Cormick Insulation Supply Inc5.0★ (2)In Wilmington
NJR Painting and Power Washing11 mi
Pro Desk at The Home Depot5.0★ (1)In Wilmington
SPI - Specialty Products & Insulation4.5★ (2)In Wilmington
Thomas Construction Group, LLC4.3★ (13)In Wilmington
Tidewater Contractors4 mi
To Serve Contracting, LLC4.7★ (76)In Wilmington
Tricoast InsulationIn Wilmington
TriCoast Insulation and Services4 mi
Tricoast Insulation IncIn Wilmington
United InsulationIn Wilmington
Upper Scale Painting & Remodeling LLCIn Wilmington

How much do insulation contractors cost in Wilmington?

National price ranges in USD, not adjusted for Wilmington. Each row names its basis and the month we checked it.

How much do insulation contractors cost in Wilmington?
JobLowTypicalHighBasisChecked
Attic insulation$1,700$2,100$2,500Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national rangeOctober 2026

How we ranked Wilmington insulation contractors

We scored 25 Wilmington 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Wilmington data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Insulation contractors in Wilmington: frequently asked questions

Who is the best insulation contractor in Wilmington?

By CR Score, the highest-ranked insulation contractor in Wilmington, NC is Coastal Insulations with a CR Score of 87/100. It has 5.0★ from 5 Google reviews. It is open 24/7. Koala Insulation of Coastal Carolina (#2) and Crawl Space Ninja of Wilmington (#3) follow. We ranked 25 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in Wilmington?

ContractorsRanked ranks 25 insulation contractors serving Wilmington, NC. 17 of them are based in Wilmington; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which insulation contractors in Wilmington are open 24/7?

3 ranked insulation contractors in Wilmington post 24/7 hours. The highest-ranked are Coastal Insulations (#1), Ramon’s Tree Service (#4) and Watson's Drywall & Home Improvement LLC (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Wilmington work on weekends?

7 of 25 ranked insulation contractors post Saturday hours and 6 post Sunday hours. The highest-ranked open Saturdays are Coastal Insulations (#1), Ramon’s Tree Service (#4) and Wilmington Spray Foam Insulation (#9). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Wilmington?

Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Wilmington. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Wilmington insulation contractors have?

The median Google rating among 25 rated insulation contractors in Wilmington is 4.8★, with a median of 22 reviews. Koala Insulation of Coastal Carolina has the most, 173 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank insulation contractors?

Each insulation contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do insulation contractors outside Wilmington count in this ranking?

Yes, if they are within 25 mi of the Wilmington city center, our service radius for insulation contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for Wilmington

  1. October 2026: CR Scores recalculated for 25 insulation contractors serving Wilmington.

More insulation contractors and Wilmington pages

Other trades in Wilmington