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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
146 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%
18 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

23 neighbors recently requested a quote
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Showing 1-10 of 136
Insulation FAQs, answered by experts

Through R-value assessments based on climate and existing insulation.

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.

Vapor barriers in attics are a bit outdated and most areas no longer recommend them for attic spaces. For vented attics, the best method is usually to install drywall and cover it with latex paint before attaching insulation fiberglass, cellulose, or foam insulation. When renovating an attic to use as a living space, a contractor can guide you on the best way to cover insulation.

Yes. Bathroom insulation requires a vapor barrier. As a matter of fact, bathrooms and kitchens are the two areas of the home that should always get a vapor barrier because of the excess moisture. If you don’t have a vapor barrier in place in these rooms, the moisture will build up and eventually lead to mold and bacteria, not to mention the destruction of the insulation.

Upgrading insulation offers several benefits, including improved energy efficiency, which leads to lower heating and cooling costs. It also enhances indoor comfort by regulating temperature and can provide noise reduction. Additionally, better insulation has a reduced environmental impact and can increase your home's value and overall livability.

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.