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TRUSTED BY WILLIMANTIC, CT HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon25
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Willimantic, CT

*The Angi rating for Insulation Service companies in Willimantic, CT 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 Willimantic, CT 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 March 17, 2026

Find Insulation pros in Willimantic

Avatar for AWC Energy
AWC Energy
5.0(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Willimantic, CT and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Fantastic. Responded to my request and provided quote quickly. Work was exceptional. Workmen were friendly, professional and repaired my insulation perfectly. Couldn't be happier."
Insulation Project
Insulation Project
Painting - Exterior Project
Insulation Project
Insulation Project

+33

Response time2 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
31
)
Spray Foam Insulation - Install

Serving Willimantic, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Small family business. Pleasant C.S.and scheduling experience with back office. Partners were very accommodating and their workers were friendly, neat and completed the full attic 50 year old insulation removal and new batt insulation install in a timely manner."
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Open Cell Spray Foam

+5

Response time1 day
32 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for Koala Insulation of Eastern CT
Koala Insulation of Eastern CT
4.7(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Willimantic, CT and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"They clean up their mess when they leave very courteous"
Batt Rolled in Insulation
Spray Foam Insulation
Blown In Insulation
Vernon Crawl Space
Vernon Crawl Space

+21

Response time1 day
11 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Ortiz Spray Foam Insulation, LLC
Ortiz Spray Foam Insulation, LLC
5.0(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - InstallInjection Insulation - Install

Serving Willimantic, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Very professional and treat customers as if they were their family, very personalized attention and work. Excellent work!"
Insulated attic
Insulated attic
Spray foam was installed
Living room after insulation
Living room

+26

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Connecticut Home Solutions, LLC
4.1(
32
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Willimantic, CT and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I liked that the first questions we were asked was "Have you had a home energy audit done? Did you know you can get a rebate on your insulation project?" Before even knowing the scope of our project, they were looking to help make it more affordable for us."
17 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for Eco Energy Solutions, LLC
Eco Energy Solutions, LLC
3.5(
25
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Willimantic, CT and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"The initial contact and meeting with the contract was very friendly and informative. The crew members and supervisor kept us informed throughout the installation and left the space immaculate."
Before and After
Insulating Knee Wall
Before
Moldy Insulation
Before

+22

Response time1 day
Recommended by92%of homeowners
Request Quote
Avatar for Perfect Wall LLC
Perfect Wall LLC
4.7(
13
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Willimantic, CT and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Perfect wall did a excellent job with spray foam insulation also had installed the drywall that is still perfect 6 years later i would definitely hire them again highly recommend them for all your drywall & insulation needs"
rockwool
fiberglass
spray foam
open cell foam
fiberglass

+1

Response time10 hrs
Response rate93%
7 neighbors recently requested a quote
Request Quote
Avatar for Fogarty's Home Services
Fogarty's Home Services
5.0(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInsulation - Install or Upgrade+1 more

Serving Willimantic, CT and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Great job on basement insulation."
The finished basement!
We now are a National Radon Defense authorized dealer!
Our staff at a recent trade event in Hartford, CT
Some of our production teams!
Before and After, Total Basement Finishing

+5

Response time10 hrs
Response rate100%
7 neighbors recently requested a quote
Request Quote
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
223
)
Blown-In Insulation - Install or Upgrade

Serving Willimantic, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"the product was excellently done. I am a contractor and I needed the job done quickly to get it on the market. they finished it in one day and left the cellar cleaner than when they came.arrtco llc James stablein project manager t t"
Finished basement in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT

+13

Response time10 hrs
115 neighbors recently requested a quote
Recommended by90%of homeowners
Request Quote
Avatar for EnLight.Energy
EnLight.Energy
3.5(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Willimantic, CT and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"They were very thorough and professional. Very personable."
Multi-Layer Insulation
Cellulose Insulation Job
Solar Install
Solar Installation
Solar Fan

+4

Response time1 day
23 neighbors recently requested a quote
Recommended by66%of homeowners
Request Quote
Showing 1-10 of 45
Insulation questions, answered by experts

Insulating a detached garage won't reduce your home's heating or cooling bills—and insulating an attached garage will only have a small effect on your home's energy efficiency. However, insulating an attached garage can reduce the transfer of heating and cooling to and from the outdoors, which can reduce the amount of energy your home needs to stay comfortable. Also, having an insulated garage is just more pleasant. Balance the cost of insulating your garage with how you'll use the space to determine if the project is worth it.

A radiant barrier is a form of insulation topped with a reflective material designed to keep homes cool during hotter months. It is generally considered worth the investment if you live in a hot, sunny climate, as the cost can be recouped over time through lower energy bills. Installation costs typically range from $0.10 to $1 per square foot. After installation, homeowners in warm climates may save between $7 and $15 per month, potentially reducing their electric bill by 5% to 10%. The exact savings will vary depending on your location and the type of barrier chosen.

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem. 

Buying a house with vermiculite insulation is not recommended without going through a proper testing process. Vermiculite insulation can potentially contain asbestos, which poses health risks when disturbed. While it is possible to purchase a home with vermiculite insulation, you should have it tested for asbestos, and ensure proper containment if asbestos is present. If asbestos is present, you will want to hire a professional to remove it, ideally before you move in.

The R-value is a rating that measures an insulation's thermal resistance—in other words, how well it insulates. A higher R-value provides more protection for your pipes, and all pipe insulation materials should have an R-value listed on the product description or label. Each insulation type has its own R-value, which typically falls between one and five for most pipe insulation. When making a selection, Energy.gov recommends choosing a pipe wrap that is at least one inch thick, and the International Code Council (ICC) suggests choosing a material with an R-value of at least 3.

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