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Insulation Contractors · Wilmington, NC/Updated June 13, 2026

The Best Insulation Contractors in Wilmington, NC

From spray foam to traditional insulation, these Wilmington contractors excel in customer satisfaction and quality service.

Editorially independent9 companies evaluated
cover story
★ Editor's ChoiceKoala Insulation of Coastal Carolina
96Score
Latest update · June 13, 2026: Initial ranking published. 9 Wilmington-metro insulation contractors businesses evaluated, top 9 ranked by Vetted Score.

Insulation contractors play a vital role in maintaining energy efficiency and comfort in homes throughout Wilmington, NC. With a coastal climate that demands effective insulation solutions, selecting the right contractor can lead to significant savings on energy bills and improved indoor comfort.

We evaluated nine local insulation contractors based on customer reviews, service quality, and overall satisfaction. Our ranking reflects genuine feedback from homeowners, ensuring you can trust these selections for your insulation needs.

9insulation contractors evaluated in Wilmington
4.54average rating across the field
351customer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does insulation contractors cost in Wilmington? See the price breakdown →

Our top picks

At a glance · three categories
Editor's Choice
96Score

Koala Insulation of Coastal Carolina

★★★★★4.9(195 reviews)

With a stellar rating of 4.9 from 195 reviews, Koala Insulation of Coastal Carolina has garnered praise for its professionalism and quality of work.

Read full review
Best Value
95Score

HDA Insulation

★★★★★5.0(39 reviews)

HDA Insulation boasts a perfect 5.0 rating from 39 reviews, highlighting its competitive pricing and efficient service.

Read full review
Most Reviewed
94Score

Certified Spray Foam

★★★★★4.9(51 reviews)

With a rating of 4.9 from 51 reviews, Certified Spray Foam is recognized for its expertise in spray foam insulation.

Read full review

All 9, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
4.9★★★★★
195Comprehensive insulation services
2
HDA Insulation
HDA Insulation
Best Value
95Score
5.0★★★★★
39Cost-effective insulation solutions
3
94Score
4.9★★★★★
51Spray foam insulation projects
4
93Score
5.0★★★★★
20Spray foam applications
5
90Score
5.0★★★★★
5Quality insulation materials
6
88Score
5.0★★★★★
2Specialized insulation projects
7
86Score
5.0★★★★★
2Custom insulation solutions
8
82Score
3.7★★★★★
26Budget-friendly insulation options
9
78Score
2.4★★★★★
11N/A
Methodology

How we evaluated all 9 insulation contractors.

To determine the best insulation contractors, we analyzed customer ratings and review counts from various platforms, focusing on quality and consistency in service. Each contractor was scored on a scale of 0 to 100, with no business paying for placement in our rankings.

This list is updated monthly to provide the most current insights available. The rankings reflect the latest customer feedback and experiences, ensuring you can make informed decisions.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

Koala Insulation of Coastal Carolina

★★★★★4.9(195 reviews)
96Score

With a stellar rating of 4.9 from 195 reviews, Koala Insulation of Coastal Carolina has garnered praise for its professionalism and quality of work. Customers commend the team for their thoroughness and responsiveness, making them ideal for comprehensive insulation projects. However, some reviews mention a wait time for appointments during peak seasons.

Pros

  • High customer satisfaction
  • Professional team
  • Wide range of insulation options

Cons

  • Potential wait times during busy periods
Best forComprehensive insulation services
Service areaWilmington, NC
Typical pricing$1.00 to $3.00 per square foot
2
Best Value

HDA Insulation

★★★★★5.0(39 reviews)
95Score

HDA Insulation boasts a perfect 5.0 rating from 39 reviews, highlighting its competitive pricing and efficient service. Customers appreciate the knowledgeable staff and quick installations. While the review base is smaller, the feedback is overwhelmingly positive, making it a promising choice for homeowners looking for value. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is cost-effective insulation solutions. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are smaller review base.

Pros

  • Excellent pricing
  • Quick service
  • Knowledgeable staff

Cons

  • Smaller review base
Best forCost-effective insulation solutions
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
3
Most Reviewed

Certified Spray Foam

★★★★★4.9(51 reviews)
94Score

With a rating of 4.9 from 51 reviews, Certified Spray Foam is recognized for its expertise in spray foam insulation. Customers praise the quality of the installation and the energy savings they experience afterward. However, some clients report that the initial consultation can take longer than expected. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is spray foam insulation projects. It serves Wilmington, NC, with $1.00 to $3.00 per square foot pricing, and the honest trade-offs are longer initial consultation times.

Pros

  • Expertise in spray foam
  • High energy efficiency
  • Positive customer feedback

Cons

  • Longer initial consultation times
Best forSpray foam insulation projects
Service areaWilmington, NC
Typical pricing$1.00 to $3.00 per square foot
4

Wilmington Spray Foam Insulation

★★★★★5.0(20 reviews)
93Score

Wilmington Spray Foam Insulation has achieved a perfect 5.0 rating from 20 reviews, with clients praising their attention to detail and customer service. They are particularly noted for their efficiency and expertise in spray foam applications. However, the limited number of reviews makes it a promising but unproven choice. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is spray foam applications. It serves Wilmington, NC, with $1.00 to $3.00 per square foot pricing, and the honest trade-offs are limited review base.

Pros

  • Excellent customer service
  • Efficient installations
  • Detail-oriented

Cons

  • Limited review base
Best forSpray foam applications
Service areaWilmington, NC
Typical pricing$1.00 to $3.00 per square foot
5

Coastal Insulations

★★★★★5.0(5 reviews)
90Score

Coastal Insulations holds a perfect 5.0 rating from just 5 reviews, indicating high customer satisfaction. Clients appreciate the quality of materials used and the professionalism of the staff. However, the low number of reviews makes their reliability somewhat uncertain. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is quality insulation materials. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are limited reviews raise reliability concerns.

Pros

  • High-quality materials
  • Professional service

Cons

  • Limited reviews raise reliability concerns
Best forQuality insulation materials
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
6

Brunswick Insulation Inc

★★★★★5.0(2 reviews)
88Score

Brunswick Insulation Inc holds a perfect 5.0 rating from 2 reviews, showcasing strong customer satisfaction in their limited feedback. They are recognized for their thorough work and expertise, but the very small review base makes them a promising but unproven option. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is specialized insulation projects. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are very limited review base.

Pros

  • Strong customer feedback
  • Thorough work

Cons

  • Very limited review base
Best forSpecialized insulation projects
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
7

Insulation Energy Systems Inc

★★★★★5.0(2 reviews)
86Score

Insulation Energy Systems Inc also holds a perfect 5.0 rating from 2 reviews, with customers noting their professionalism and quality of work. The feedback is positive, but like Brunswick, their very limited review base leaves their overall reliability in question. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is custom insulation solutions. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are extremely limited reviews.

Pros

  • Professional service
  • Quality workmanship

Cons

  • Extremely limited reviews
Best forCustom insulation solutions
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
8

Blown-Rite Insulation and Gutters LLC.

★★★★★3.7(26 reviews)
82Score

Blown-Rite Insulation and Gutters LLC has a rating of 3.7 from 26 reviews, which indicates a mixed customer experience. Some clients appreciate their prompt service and competitive pricing, while others report issues with communication. This inconsistency may be a concern for potential customers. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is budget-friendly insulation options. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are mixed reviews on communication.

Pros

  • Prompt service
  • Competitive pricing

Cons

  • Mixed reviews on communication
Best forBudget-friendly insulation options
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
9

Eastern Insulation

★★★★★2.4(11 reviews)
78Score

Eastern Insulation has a lower rating of 2.4 from 11 reviews, suggesting significant customer dissatisfaction. Clients have raised concerns about the quality of work and responsiveness. Given the negative feedback, potential customers should approach with caution. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is n/A. It serves Wilmington, NC, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are significant customer dissatisfaction and concerns about quality.

Pros

  • N/A

Cons

  • Significant customer dissatisfaction
  • Concerns about quality
Best forN/A
Service areaWilmington, NC
Typical pricing$0.50 to $1.50 per square foot
Before you book

How to choose an insulation contractor in Wilmington

Choosing the right insulation contractor involves considering several factors, including experience, customer feedback, and service offerings. Here are key points to help guide your decision.

Check Reviews

Look for contractors with consistently high ratings and positive customer feedback.

Assess Experience

Choose contractors with a proven track record in insulation installation and customer service.

Request Quotes

Get multiple quotes to compare pricing and services offered.

Verify Licensing and Insurance

Ensure the contractor is licensed and insured to protect yourself from liability.

What it costs

What insulation costs in Wilmington

The cost of insulation services in Wilmington can vary widely based on the type of insulation and the specifics of the project. Here's a breakdown of typical pricing tiers.

Spray Foam Insulation$1.00 to $3.00 per square foot, depending on the thickness and application.
Fiberglass Batts$0.50 to $1.50 per square foot, commonly used for walls and attics.
Blown-In Insulation$1.00 to $2.00 per square foot, ideal for filling existing walls or attics.
Reflective or Radiant Barrier$0.50 to $1.00 per square foot, often used in attics to reduce heat gain.

Frequently asked questions

How much does insulation cost in Wilmington?

Insulation costs can range from $0.50 to $3.00 per square foot, depending on the type and application.

What factors affect insulation pricing?

Factors include the type of insulation, the size of the area being insulated, and the complexity of the installation.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Wilmington homeowners: Editor's Choice Koala Insulation of Coastal Carolina

For quality insulation services in Wilmington, Koala Insulation of Coastal Carolina stands out as our top recommendation, with its impressive ratings and customer feedback. Close contenders include HDA Insulation, known for its value and efficiency, and Certified Spray Foam, praised for its expertise in spray foam applications.