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TRUSTED BY CHAPEL HILL, NC HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon251
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Chapel Hill, NC

*The Angi rating for Insulation Service companies in Chapel Hill, NC 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 Chapel Hill, NC 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 June 19, 2026

Find Insulation pros in Chapel Hill

Avatar for Insulation For All, LLC
Insulation For All, LLC
4.8(
23
)

Serving Chapel Hill, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Very professional job, office and insulation staff were friendly, explained everything to be done, and helpful, left no mess or debris to deal with. Work was done in a timely manner and with a one week turn around. I will recommend this company to others."
Rehab project
Metal building insulation
Rehab project
Metal building insulation
Rehab project

+29

Response time1 day
Response rate100%
15 neighbors recently requested a quote
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Avatar for USA Insulation Raleigh-Durham
USA Insulation Raleigh-Durham
4.9(
14
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"So happy I went with USA Insulation. After learning about foam insulation, I knew it was the right option for my house. They insulated my walls and attic in a day and a half, and I could feel the difference right away."
USA Insulation Raleigh-Durham
Response time1 day
15 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for Triangle Radiant Barrier
Triangle Radiant Barrier
4.9(
58
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Everything went according to plan. Crawlspace insulation was replaced and closed space was sealed up. A air inducer was also installed. The environment is totally different down there now and is much closer to the temperature of the house. I kept my vapor barrier the same."
Rafter installation of Radiant Barrier by Triangle Radiant Barrier in Raleigh, NC.
Crawl space encapsulation by Triangle Radiant Barrier in Fuquay-Varina, NC.
Radiant Barrier installation on attic rafters. Reduce attic summer heat 30-40 degrees Fahrenheit, on average. Increased home comfort, lower cooling costs, extended HVAC service life, increased home resale value. Transferable lifetime warranty on our Radiant Barrier installation.
Additional Photos
Additional Photos

+28

14 neighbors recently requested a quote
Recommended by94%of homeowners
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J&L Home Improvement and Mitigation Services
4.5(
17
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Jimmie was professional, friendly and knowledgeable. Of the estimates and recommendations I received for mold remediation in my crawlspace, I thought Jimmie's approach seemed the most logical and thorough. Pricing was fair, and the service was prompt with regular communication from him and his team about progress and next steps. He even performed an extra preventative measure that wasn't included in the estimate. I highly recommend this company."
Mold Testing and Remediation Project
Installation of Vapor Barrier
Water Mitigation
Mold Remediation
Water damage before and after mitigation.

+195

Response time1 day
4 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Evergreen Foam and Insulation
Evergreen Foam and Insulation
5.0(
2
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Evergreen was great from start to finish! The salesman, Chris, was super helpful in answering questions and the install crew was on time, efficient, and cleaned up after themselves. Highly recommend to anyone needing spray foam or any other type of insulation."
Cathedral Dome
Dome Walls
Attic Space
Bedroom Dormer
Bedroom 1

+8

Response time2 days
25 neighbors recently requested a quote
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Avatar for Spray Foam Pro LLC
Spray Foam Pro LLC
5.0(
4
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

We specialize in insulation installation and upgrades as well as roofing repair. Each of our employees boasts over 20 years of industry experience! We take pride in commitment to the quality of work we produce, and the long-term relationships we build with our clients. \nWe guarantee quality and complete satisfaction, featuring a 10 year warranty at no additional cost on all of our services. We set ourselves apart from our competitors by offering the highest quality of work combined with experience, guaranteed. Find another company with a lower price and we will beat the competitor’s price by 10%. Call today for a free estimate! \n

Crawlspace encapsulation
Crawlspace encapsulation
Crawlspace encapsulation
Crawlspace encapsulation
Crawlspace encapsulation

+11

Response time3 hrs
29 neighbors recently requested a quote
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Avatar for Solution Zero LLC
Solution Zero LLC
5.0(
4
)

Serving Chapel Hill, NC and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Solution Zero was exceptionally professional and punctual. Their crew worked efficiently, maintained a clean workspace, and was consistently courteous throughout the process. I would highly recommend them to friends and family for any insulation needs."
New build open cell
New build open cell
New build open cell
Metal Building
Metal Building

+1

Response time2 days
12 neighbors recently requested a quote
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Insulation questions, answered by experts

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.

Expect your home insulation project to take between five and 12 hours to complete on average for batts or boards and two to five hours for spray foam or blown-in insulation. It might take longer if you need to remove your home’s existing insulation, you have a higher-than-average square footage, or accessibility is limited.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: 

  • If the insulation is over 15 years old

  • If the insulation is wet or moldy

  • If it is vermiculite insulation

  • If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

The Chapel Hill, NC 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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