A&J Insulation Inc.
“Jacob and Jesse are exceptional in their communication from beginning to end, providing high quality spray foam products and ensuring a safe and thorough job to completion.”
Best Insulation Contractors in Brooklyn, NY
24 contractors listed · all 24 in Brooklyn · 1 open 24/7 · 17 open weekends · all 24 rated 4.5+
Data verified October 21, 2026
SAS Roofing & Waterproofing
“Mohamad was kind and flexible with us,and we had him come the following week in 1 day to redo our roof and skylights.”
Aslam & Sons General Construction Inc.
“The work was completed within the timeframe we agreed upon and the job site was left clean.”
BNP Consulting Roofing
“We are very satisfied with the work performed by BNP, particularly how they dealt with the persistent problem by working with the coop to try to find a solution, without trying to take advantage of the situation.”
Go Go Green Insulation
“Devon was a pleasure to work with and was able to handle my last minute addition like a true professional.”
Prime Foam Insulation Inc
“We recently had the pleasure of working with Prime Foam Insulation for insulating my home attic and home office, and we must say, they exceeded my expectations in every way.”
The 24 contractors listed for Brooklyn, NY insulate attics, walls, crawl spaces and rim joists. Details under each one about materials, hours and the services advertised are copied from the company's own site; star ratings and comments come from public reviews.
Area overview: Brooklyn, NY
All 24 contractors we list here are in Brooklyn itself. We have 28 contractors in Brooklyn on file; this page shows the highest-rated 24. The contractors on this page are rated from 4.5 to 5.0 across 758 reviews; 7 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), responsiveness (86%) and quality (84%). The topics that come up most in reviews of the contractors on this page are "price", "efficient" and "cleanliness". 1 is open around the clock; 12 are open on Saturdays and 12 on Sundays. 6 show a license on their websites. Domain records put 13 websites of the contractors on this page at ten or more years old; the oldest dates from 2007. 1 offers emergency call-outs; 1 offers financing or payment plans; 11 give free estimates; 2 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 24 of the contractors on this page; 22 publish a contact page; 22 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
Will anyone assess the house at no charge?
No charge assessments are advertised by 11 of the 24 contractors on this page. A free look usually means someone measures the attic and writes a proposal. A paid energy audit with a blower door and a camera is a different product and tells you far more about where your house is leaking.
Insulation Builders
“Very professional company did amazing job,and this is after I change 2 different company that start the job and didn't know how to finish it,also as customer service very nice And the price was very reasonable”
Hush Soundproofing
“He provided some practical solutions to a challenging situation and then implemented them in a very professional manner with a nice respectful crew.”
Foam Insulation Solution
“Their team was in and out in three hours and barely left a trace except for a couple pieces of foam that I was easily able to vacuum up.”
Ecowise Insulation Inc.
“The quality of their work exceeded my expectations, and I've already noticed a significant improvement in the energy efficiency of my home.”
Prime Stucco Supply
“Very good quality material, you can find everything related to stucco with very good prices”
Premier Roofing
“I also had an independent roof inspector out and he said the roof was in the top 10% of all roofs he's seen in Brooklyn — even 12 years after the installation.”
TOP Insulation NY
“My home used to be freezing in the winter and now it's so nice and comfy, winter and summer.”
NYS Energy Audits
“The staff were all well trained,polite and professional as they went about doing their chores.”
Zavza Seal LLC
“My project ran into issues (not the fault of Zavza--sometimes it happens), and the team was committed to help me resolve.”
Spray Foam Experts
“This company did sprayfoam installation in my walls and in my attic crawl space and I couldn't be more happy with the work and professionalism, it's already making a difference with the summer weather.”
Foam Masters USA
“Eli and his team were super professional and great throughout the entire process.”
Energy Plus NY
“The best experience ever highly recommended you'll thank me later so don't waste your time and money and give them a call.”
Spray Foam Midwood
“Their integrity in business is commendable, and I would recommend them to anyone seeking reliable insulation services.”
Ecorite Insulation Solutions
“Ecorite always provides a very professional atmosphere and arrived on time for both the measurement appointment and the insulation.”
Spray Foam Insulation NYC
“I am very satisfied with the results of their work and happy to report that I feel more privacy in my space.”
New York Enviro-Foam
“They were super helpful in explaining exactly what the process of spray foam insulting for the entire house entailed.”
RYB
“He made such an effort to keep everything clean, put plastic over everything that we owned so that no dust was getting on our storage.”
Puza Construction Inc.
“Would recommend price was better then three other quotes I got, would recommend.”
Why these companies made our list
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