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    Average homeowner rating
  • Verified reviews icon164
    Verified insulation services reviews

Top-Rated Insulation pros in Southport - Updated Nov 2026

Avatar for Carolina Energy Conservation, LLC
Carolina Energy Conservation, LLC
4.7(
96
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Southport, NC and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"After a year and a half with my crawlspace encapsulation everything is going good! I was very nit-picky about many details and everyone I dealt with was courteous, professional and communicative, had 1 little issue that was immediately resolved and the techs that got it completed did a great job. I was very pleased with the way they set up a barrier around my pool to prevent any debris from getting into it too"
Sprayfoam Insulation
Solatube in Charleston
Sprayfoam Insulation
Solatube in Charleston
Detached Panel

+17

Response time1 day
18 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for All About Energy Solutions, LLC
All About Energy Solutions, LLC
4.3(
108
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Southport, NC and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"The estimator/salesperson Jeremy was excellent. On time, knowledgeable, understood the issues we had and spent a lot of time to recommend the best solution. The install crew of Shawn H and Dustin were prompt, professional and efficient. I would recommend this company and will use them again for my insulation needs."
Radiant Barrier Insulation in Southport, NC
Insulating a FROG with Radiant Barrier
Energy Efficient LED Light Bulbs
Additional Photos
Additional Photos

+16

14 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Indoor Mechanical Service, LLC
Indoor Mechanical Service, LLC
4.3(
104
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Southport, NC and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Upstairs would not cool down with the unit on, called indoor mechanical and Robert and Josh came out within 24 hours. Did a lot of testing and looked everything over and turned out needed and entire new unit. Had a price same day and an appointment set. They were on time, professional, cleaned and made sure everything was running right and even checked to make sure the kids rooms had good air flow to keep them comfortable during these warm spring days in NC. Could not ask for a better outcome to a crappy situation that is going to happen eventually when you own a home. Indoor mechanical will be my go to for anything they offer."
Top quality equiptment
Are you loosing money with your duct system?
 Energy Star Rated Systems
and after,the duct is energy star rated
HIGH EFFICIENT ENERGY STAR INSTALLS

+13

Recommended by97%of homeowners
Avatar for Blues Seamless Gutters
Blues Seamless Gutters
5.0(
13
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Southport, NC and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"My experience was great. Steve kept communications open during a period of inclement weather. When the weather cleared Steve and one of his crew came to access the job and determined that they could do the job right then, so they got to work and installed the gutter with the highest level of professionalism and skill. I will recommend Blue Seamless Gutters to anyone without reservations."
Response time2 days
3 neighbors recently requested a quote
Recommended by63%of homeowners
Blue Way Insulation
New to Angi
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Southport, NC and surrounding areas

Approved

Blue Way Insulation - We are professionals located in Wilmington, NC. We install batt insulation in all homes, add blown-in into the attic spaces, and work inside crawl spaces adding insulation or vapor barrier or both. We have combined 7+ years experience. We offer services in Jacksonville, Leland, and surrounding areas.

Avatar for Carolina Energy Concepts, LLC
Carolina Energy Concepts, LLC
4.7(
43
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Southport, NC and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"We are thrilled with their work, Mitch was easy to talk to, arrived on time, explained his procedures well and did an excellent job of insulating an older home without having to tear down walls. We definitely recommend Carolina Energy Concepts, LLC for retro insulation and all insulation. We will hire him again if needs arise."
Foam
Spray Foam
Foam
spray foam
spray foam

+16

Response time8 hrs
Recommended by97%of homeowners
Avatar for Koala Insulation of Coastal Carolina
Koala Insulation of Coastal Carolina
4.8(
8
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Southport, NC and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"From start to finish - the scheduling process, quoting and to completing the job - everything was handled smoothly, with utmost friendliness and professionalism. On the day the work was to be done, I received updates for estimated arrival, and when they finished they cleaned up as if they were never there. I highly recommend Koala Insulation and I will be using them again for my next project."
Blown In Insulation
Spray Foam Insulation
Batt Rolled Insulation
Response time1 day
Response rate85%
Recommended by100%of homeowners
Showing 1-10 of 45
Insulation FAQs, answered by experts

Single-pane windows might let in the cold, but if you’re not ready for a long-term solution or window replacement, there are quick fixes to keep your space warmer. Start by sealing gaps with weatherstripping or caulking around the frame to block drafts. For an extra barrier, apply window insulation film to the glass, trapping an air pocket between the film and the window. Thick curtains or thermal drapes can also help keep the chill at bay. And if you’re in a pinch and looking to get creative, bubble wrap can provide a surprisingly effective layer of insulation—just spritz the window with water and press it on, bubble side in.

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.

Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

The Southport, NC homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.