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TRUSTED BY LONG ISLAND, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon73
    Verified insulation services reviews

Find Insulation pros in Long Island

Avatar for Triple H Insulation
Triple H Insulation
4.6(
41
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Long Island, NY and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"ABSOLUTELY RECOMMENDED ð ¯, WORKERS ARE RESPECTFUL, WORKED HARD ð ð , ADDED NEW & BETTER INSULATION IN THE ATTIC, ADDED INSULATION INTO THE GARAGE WALLS & CEILING, VERY PLEASED WITH THE WORKERS & JOB, WOULD HIRE TRIPLE H INSULATION AGAIN FOR THE FUTURE."
Spray Foam -Rim Joist
Cellulose Insulation
Cellulose Insulation
SilverGlo -Crawl Space
Cellulose Insulation

+152

Response time12 hrs
Response rate93%
6 neighbors recently requested a quote
J.C. Home Care Center, Inc.
4.0(
946
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallInjection Insulation - Install+1 more

Serving Long Island, NY and surrounding areas

Approved

In business since 1982

Free estimates

Warranties offered

"They did a great job of blowing the insulation in my attic. They were efficient and courteous of our needs very happy with the work performed. I would highly recommend it. I will be calling them to insulate my walls this spring."
Attic hero
Energy savings
Attic hero
Response time11 hrs
150 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Zavza Seal, LLC
Zavza Seal, LLC
4.8(
52
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Long Island, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"This was the second time I hired zavza seal. This time I needed help with attic insulation for my parents house. Starting with setting up the free appointment, ending with the crew and quality of the work - they deliver a great experience and I highly recommend them for anything waterproofing, insulation, concrete and foundation fixes. If you are looking for a contractor and donâ t know who is trustworthy and professional, go with Zavzaseal, you ll be in a very good hands."
Flooring
Flooring
Flooring
Flooring
Response time7 hrs
Response rate98%
4 neighbors recently requested a quote
Avatar for Ecowise
Ecowise
4.5(
24
)
Spray Foam Insulation - Install

Serving Long Island, NY and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I needed spray foam done in my warehouse and lots of people kept turning me down, I found this company called Ecowise Insulation and I had a great service with them. They were very nice on the phone, doing there Job clean, respectful and fast. taking care of me like no other company has ever done before. I would recommend."
Response time1 day
Response rate98%
20 neighbors recently requested a quote
Chortani Services HVAC
4.6(
193
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Long Island, NY and surrounding areas

Approved

In business since 1992

Offers commercial services

Customers say: Quick response

"-came on time - curteous service Answer all question Discussed proble with ac system Duscussed reasonal replacement Curtesy check other ac unit for tune up Through in doing job Checked amp usage of ac Checked wire securely Remove old unit Clean up after job done No argument as reasonable offer Overall satisfied service Would recommand to use again for air condition service"
Response time4 hrs
Response rate100%
Recommended by97%of homeowners
MAT General Contracting
4.6(
17
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Long Island, NY and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"These guys are great! Manny showed up on time for his estimate, gave me a price on the spot, and talked things out with me to make sure that I understood exactly what he was including in the insulation project. He was able to meet my timeline, which was quick, and finish the project on time and as promised. He was very communicative throughout the process and pleasure to deal with. His crew was polite and worked hard. I am VERY satisfied with the crew and the workmanship."
Response time7 hrs
Response rate98%
3 neighbors recently requested a quote
Thomas Construction Services LLC
New to Angi
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Long Island, NY and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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. Call us today.\n

14 neighbors recently requested a quote
Avatar for Stone Quality Contracting
Stone Quality Contracting
5.0(
3
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Long Island, NY and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

Stone Quality Contracting is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 5 years of experience serving Suffolk County, NY and surrounding areas. There is no job too big, or too small for our team. Call today for a Free Estimate and let us put our experience to work for you!\nFollow us on Instagram @stone_quality_contracting and Facebook Stone Quality Contracting\nCall/Text (631) 978-3387\nEmail [email protected]

Front Door painted
Ceiling Painted
Shed Stained Door Painted
Deck Staining
Concrete Staining

+17

Response time6 hrs
Recommended by66%of homeowners
Avatar for Go Go Green Insulation
Go Go Green Insulation
5.0(
28
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Long Island, NY and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"They showed up exactly when they said they would. They were efficient, neat and made sure to send me pictures in the various stages of execution. And they cleaned up better than when they found the area. I would highly recommend them. I wish he did more than insulation because he would be my go-to guy for all house related needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+119

Recommended by100%of homeowners
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Insulation questions, answered by experts

For your Long Island home, you can use caulk to seal small cracks, add weatherstripping to doors, and install foam gaskets behind outlet covers to improve energy efficiency. Check attic insulation depth and look for visible air leaks. Avoid disturbing older insulation, especially in homes built before 1980, due to possible asbestos. For any signs of water damage, electrical hazards, or mold, contact a local NY insulation professional.

Helpful?

Insulation service in Long Island provides immediate improvements in comfort and indoor air quality, while reducing drafts and controlling humidity. Over time, you’ll notice lower energy bills, less strain on your HVAC system, and protection against mold or moisture damage. Proper insulation can also boost your home’s value and may qualify you for NY energy efficiency rebates or tax incentives, making it a smart investment for long-term savings.

Helpful?

Long Island’s coastal NY climate means insulation must withstand high humidity, salt air, and frequent temperature swings. Materials should be moisture-resistant and suitable for attic insulation in both cold winters and hot, humid summers. Nor’easters and hurricane threats require insulation that can handle heavy precipitation and potential flooding. Scheduling installation in late spring or early fall helps avoid peak humidity and ensures optimal performance.

Helpful?

In Long Island, homeowners often neglect air sealing before installing new insulation, which can lead to persistent drafts and reduced energy efficiency. Choosing insulation unsuited for NY’s coastal humidity or failing to address moisture in crawl spaces can cause mold issues. Overlooking local permit requirements or Nassau and Suffolk County building codes may result in delays or costly corrections after the project is underway.

Helpful?

When hiring a Long Island insulation contractor, prioritize experience with NY’s coastal climate and knowledge of Nassau and Suffolk County building codes. Confirm they carry liability insurance and offer clear warranties. Ask about their approach to moisture control and attic ventilation, especially for older homes. Request recent local references and ensure you receive a detailed written contract outlining the scope of work before any project begins.

Helpful?

The Long Island, NY homeowners’ guide to insulation services

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