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TRUSTED BY NORTHPORT, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon291
    Verified insulation services reviews

Top-Rated Insulation pros in Northport - Updated Nov 2026

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

Serving Northport, 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 Northport, 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
144 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Ecowise
Ecowise
4.5(
24
)
Spray Foam Insulation - Install

Serving Northport, 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%
16 neighbors recently requested a quote
Chortani Services HVAC
4.6(
193
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Northport, 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 Northport, 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%
2 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.1(
63
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Northport, NY and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"We just had a roof done by home genius exteriors. We started with Justine at our door setting up an appointment for someone to tell us about the process. The next day Dan came and explained how the company works. He even crawled around our attic to show us the damage. Within 2 days our roof was in the process of being installed. Zach the project manager stopped by 3 times during that day to see how the work was being done. What a professional company. Everyone that we spoke to or met was very professional and friendly,. I would highly recommend this company for installing a roof."
my jobs
my jobs
my jobs
my jobs
my jobs

+87

Recommended by93%of homeowners
Thomas Construction Services LLC
New to Angi
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Northport, 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

21 neighbors recently requested a quote
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Insulation FAQs, answered by experts

Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.

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.

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they’re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It’s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.

The best R-value for home insulation depends on where you live and where you’re installing the insulation. Your climate zone plays the biggest role in determining the correct R-value, so be sure to know which zone you live in when determining the R-value you need.

The Northport, NY homeowners’ guide to insulation services

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