NYC's Full-Service Insulation Contractor

Professional insulation NYC homes and businesses count on: spray foam, fiberglass, rockwool, cellulose & soundproofing. Serving Brooklyn, Queens, Manhattan, the Bronx, Staten Island & Long Island.

As National Grid and Con Edison approved contractors, we help NYC homeowners and businesses lower installation costs through available utility rebates.

National Grid Partner

Con Edison Approved

NYSERDA Certified

18+

Years Serving NYC

3,450+

Completed Projects

88+

5-Star Reviews

5

Boroughs Served

Why NYC Buildings Need Better Insulation

New York’s buildings face unique challenges. Pre-war brownstones, post-war co-ops, and modern high-rises each have different insulation needs. The insulation NYC buildings were originally built with is often thin, settled, or missing altogether.

Add in our extreme temperature swings from freezing winters to humid summers and most NYC buildings are losing 30-50% of their heating and cooling through poor insulation and air leaks.

The result? Sky-high energy bills, uncomfortable rooms, and HVAC systems working overtime.

We solve this by treating each building individually. Our certified technicians assess your property and pinpoint exactly where you’re losing energy.

We then recommend the insulation solution that makes sense for your building type, budget, and goals.

Insulation Solutions for Every NYC Building

We install every major type of insulation NYC properties call for, each with specific advantages. Our experts help you choose the right material based on your building’s construction, your energy goals, and available rebates.

Where We Insulate

From attic to crawlspace, we install the insulation NYC brownstones, co-ops, and commercial spaces need:

Attic Insulation NYC

Attic Insulation

Stop heat loss through your roof. Attics account for up to 25% of home energy loss.

Basement Insulation

Basement Insulation

Control moisture and temperature in below-grade spaces for a comfortable finished basement.

Wall Insulation

Wall Insulation

Upgrade existing walls without major demolition using our drill-and-fill method.

Crawlspace Insulation

Crawlspace Insulation

Seal and insulate crawlspaces to prevent cold floors, moisture problems, and pest entry.

Air Sealing

Air Sealing

We seal gaps around windows, doors, pipes, and wires before insulating for maximum efficiency.

Firestopping

Firestopping

Meet NYC fire codes with proper firestopping around penetrations and between units.

Professional Spray Foam Insulation Installation Brooklyn NY

Spray Foam Insulation​

The gold standard for air sealing and insulation in one application. Spray foam expands to fill every gap, crack, and cavity, creating a complete thermal barrier. Available in open cell and closed cell.

Batt and Roll Insulation

Fiberglass Insulation

The most widely used insulation material, available in batts, rolls, and blown-in formats. Cost-effective and proven, fiberglass works well for standard wall cavities, attics, and floors.
Professional Batt and Roll Insulation Installation Brooklyn

Cellulose Insulation

An eco-friendly option made from recycled paper products, treated for fire and pest resistance. Blown-in cellulose fills irregular cavities completely and provides excellent coverage.

Rockwool Insulation Brooklyn NY

Rockwool Insulation

Made from natural stone, rockwool offers excellent thermal performance plus superior fire resistance and soundproofing. It won't burn, doesn't absorb moisture, and maintains R-value over time.

Sound insulation on walls nyc

Sound Proofing

Reduce noise transfer between floors, walls, and from outside. We install specialized acoustic insulation including rockwool, mass-loaded vinyl, and K-13 spray-on acoustic coating.

K-13 Acoustic Spray

A spray-applied cellulose finish for exposed ceilings and walls. K-13 absorbs sound and cuts echo in restaurants, offices, gyms, and parking garages while adding thermal insulation.

Serving All NYC Boroughs & Long Island

Professional insulation NYC residents can book in every borough, plus Nassau and Suffolk on Long Island

Brooklyn

Park Slope, Bay Ridge, Williamsburg, Flatbush, DUMBO, Bushwick, Crown Heights, Greenpoint, Bensonhurst, Borough Park, Sunset Park

Manhattan

Upper East Side, Upper West Side, Chelsea, Tribeca, Harlem, East Village, West Village, SoHo, Financial District, Midtown

Queens

Astoria, Forest Hills, Flushing, Jamaica, Long Island City, Bayside, Rego Park, Jackson Heights, Woodside, Ridgewood

Staten Island

St. George, Tottenville, New Dorp, Great Kills, Staten Island North Shore, Eltingville, Annadale, Huguenot, Travis, Westerleigh

Long Island

Nassau County (Hempstead, Garden City, Great Neck, Manhasset), Suffolk County (Huntington, Babylon, Islip, Smithtown)

Bronx

Riverdale, Fordham, Pelham Bay, Throggs Neck, Morris Park, Kingsbridge, Wakefield, Co-op City, Hunts Point, Mott Haven

Lower Your Cost with NYC Utility Rebates


As an approved contractor for National Grid, Con Edison, and NYSERDA programs, we help you find the rebates you qualify for and handle the paperwork.

What Our Customers Say

They insulated our 1920s Brooklyn brownstone with a combination of spray foam in the basement and cellulose in the attic. The difference is incredible, our heating bills dropped by 35%.
Michael J.
Park Slope, Brooklyn
We needed soundproofing between units in our Queens rental property. Insulation Builders recommended rockwool in the walls and ceilings. The tenants are thrilled, noise complaints have stopped completely.
Sarah L.
Forest Hills
Insulation Builders was the only one that took time to explain why spray foam wasn't the best choice for my situation. They recommended fiberglass batts for my attic and costs were half what others quoted.
David K.
Bay Ridge

Frequently Asked Questions

It depends on your building type, the area being insulated, your budget, and goals. Spray foam excels at air sealing and works well in crawlspaces and rim joists. Rockwool offers fire resistance and soundproofing.

Fiberglass is cost-effective for large attic spaces. Cellulose is eco-friendly and fills irregular cavities well. We assess your specific situation and recommend the best option. With years of experience in both historic and modern NYC homes, we can guide you to the right choice.

Costs vary based on the insulation type, area size, and accessibility. However, with utility rebates from National Grid and Con Edison, many homeowners pay less than the quoted price. Ask us which rebates your home qualifies for. We provide detailed estimates and help you understand available rebates before you commit.

Yes. As approved contractors for National Grid, Con Edison, and NYSERDA, we manage the entire rebate process. This includes required pre- and post-testing, documentation, and utility coordination. You get the rebate without the hassle.

Most residential projects take 1-2 days. Larger homes or commercial properties may take longer. We provide a timeline during your estimate and work efficiently to minimize disruption.

Spray foam costs more upfront but provides superior air sealing and the highest R-value per inch. For areas with significant air leakage, spray foam often delivers the best long-term value. For simpler applications, traditional insulation may be more cost-effective. We help you weigh the options.

Yes. We provide insulation services for office buildings, retail spaces, warehouses, restaurants, and multi-family properties. Commercial projects may qualify for different rebate programs and building code requirements—we’re experienced with both.

Ready to Improve Your Building's Comfort & Efficiency?

Get a free, no-obligation estimate for insulation NYC property owners trust.

Home Page Quick Estimate

Or call us directly at
(347) 200-5089
Email: info@insulation.builders
3701 Bedford Avenue, Brooklyn, NY 11229