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TRUSTED BY JOHNS ISLAND, SC HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon144
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Johns Island, SC

*The Angi rating for Insulation Service companies in Johns Island, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Johns Island, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on December 31, 2025

Find Insulation pros in Johns Island

Avatar for USA Insulation of Charleston
USA Insulation of Charleston
5.0(
5
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Johns Island, SC and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

USA Insulation has been providing homeowners with energy efficient insulation since 1985. Our trained, professional installers, service Charleston County, Berkley County & Dorchester County. We pride our company on reliability, great communication, integrity and quality work. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Please contact us today to set up a free consultation

47 neighbors recently requested a quote
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Avatar for Carolina Energy Conservation, LLC
Carolina Energy Conservation, LLC
4.7(
96
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Johns Island, SC and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Very well, Very neat, personable, and efficient. Very pleased"
Sprayfoam Insulation
Solatube in Charleston
Sprayfoam Insulation
Solatube in Charleston
Detached Panel

+17

Response time1 day
23 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Apex Home Innovations, LLC
Apex Home Innovations, LLC
4.8(
25
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Johns Island, SC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Mr. Miller, with Apex, is SUPER easy to work with and will do you good! They did an awesome job with removing and adding new insulation. They ended up going above and beyond and even doing a little extra work for me!"
Response time5 days
50 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for Coker Insulation Solutions
Coker Insulation Solutions
4.8(
10
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Johns Island, SC and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Cleaned up after themselves. Very friendly & respectful. Took pictures of my attic before & after work was done to show me. Price was reasonable. Would recommend them."
Gallery
Gallery
Gallery
21 neighbors recently requested a quote
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Avatar for Barrier South
Barrier South
4.8(
15
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Johns Island, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Barrier South did a great job re insulating my attic and crawl space under house. Jose led a crew that were very professional and skilled. I recommend Barrier South highly. Great job at competitive prices."
Attic Insulation - Open Cell - nominal 5" - R
Attic Insulation - Open Cell - nominal 5" - R
Attic Insulation - Open Cell - 10.5" - R-38
Exterior walls - open cell walls - R-13 value
Shaved flushed for sheet rock.

+4

Response time2 days
144 neighbors recently requested a quote
Recommended by21%of homeowners
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Avatar for Coastal Synergy, LLC
Coastal Synergy, LLC
4.8(
4
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Johns Island, SC and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Very nice working with them! Fair pricing and excellent service! Highly recommend!!"
Response time3 days
9 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Energy One America, LLC
Energy One America, LLC
3.9(
69
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Johns Island, SC and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Brian,the sales rep, was very professional. Their crew worked under extremely hot conditions from the sun and the heat generated by the foam application. Despite the conditions, they completed our large attic in just over 5 hours. I would recommend this company to anyone looking for this product in their home."
Open Cell Spray Foam Insulation
Open Cell Spray Foam Insulation
Closed Cell Spray Foam Insulation
Closed Cell Spray Foam Insulation
Energy One America Trucks

+8

Recommended by95%of homeowners
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Avatar for Advanced Spray Foam and Coatings, LLC
Advanced Spray Foam and Coatings, LLC
4.7(
21
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Johns Island, SC and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"These are the "go-to" guys for spray foam insulation. I would recommend them any time. They were friendly and efficient."
Response time2 days
Recommended by95%of homeowners
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Avatar for Eco Friendly Services
Eco Friendly Services
4.9(
31
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Johns Island, SC and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"The service technician was excellent. He was professional and immediately came and completed the work requested. The unit is working perfectly and because of this, l requested another service to have the unit cleaned. I would definitely recommend your company to anyone in need of your services. Thank you."
Beautiful installed new High Efficiency WwilMclain Evergreen Boiler
New 14 Seer Condenser with new pad and new Disconnect Box
Hi efficiency Amana heating and cooling system
Install newheating and cooling system
Remove old Boiler and install a New Boiler

+34

Recommended by96%of homeowners
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Showing 1-10 of 37
Insulation questions, answered by experts

You can purchase bags of cellulose and loose-fill fiberglass blown-in insulation from the same local home improvement store where you rent your blower. If you want to use rock wool insulation, you may need to special order it.

Spreading tin foil over your windows works similarly to radiant barrier insulation, but not as well. It will reflect some of the sunlight that would otherwise come through the glass and warm up the inside of your home, so it might help a little to keep your home cool in the summer. However, the appearance isn’t preferable to blinds or drapes that can offer the same benefits. You might also consider tinting your windows instead, which is a more aesthetically pleasing change that can still block a good portion of the solar heat coming through your windows.

The lifespan of cellulose insulation is 20 to 30 years, on average. That said, it’s important to start checking your insulation after year 10 to check for degradation, mold, mildew, and other potential problems. Every 10 years, you should also confirm your home’s insulation is in line with updated local building codes.

Yes, eco-friendly blown-in insulation options include materials made from recycled cellulose or wool. These offer excellent thermal performance and sustainability, reducing energy consumption and environmental impact while enhancing home efficiency.

Exposed ductwork can sweat just like ductwork placed behind walls, sometimes even more so. Ductwork sweats—like a cold drink on a hot day—because of a temperature imbalance between the air in the duct and the air in the room. In a crawl space or wall, this temperature can equalize faster due to the small space but in lofts and open rooms, that wouldn’t happen as quickly. Many people insulate their ducts for this reason.

The Johns Island, SC homeowners’ guide to insulation services

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

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