Spray Foam Insulation Brooklyn NY

Brooklyn is our home turf. From the brownstone blocks of Park Slope and Fort Greene to the brick rowhouses of Bushwick and Ridgewood-adjacent blocks, the brick-and-limestone stock of Bay Ridge, and the converted lofts of Williamsburg and Gowanus — we have foamed attics, basements, and wall cavities across the borough. Nobody understands Brooklyn's buildings like a contractor who works in them every day.

Brownstones & Rowhouses: Built Beautiful, Built Drafty

The classic Brooklyn brownstone is a 20-foot-wide heat sieve. Shared party walls help on the sides, but the front and rear exposures — tall windows, original wood framing, and zero cavity insulation — hemorrhage heat. The top floor is always the coldest: heat rises through uninsulated attic floors and out the flat roof. The basement is always the dampest: stone foundations wick moisture straight from the soil.

Our standard brownstone package targets the three biggest losses: spray foam on the attic floor or roof deck, closed-cell foam on the basement walls and rim joists, and air sealing at every penetration between. Most brownstone owners see 30–40% lower heating bills and finally get a top floor that's comfortable in January.

Neighborhood by Neighborhood

• Park Slope, Fort Greene, Boerum Hill: Landmark brownstones where we work carefully around historic plaster and woodwork. Attic and basement packages are the norm.
• Bushwick, Bed-Stuy, East New York: Brick rowhouses and wood-frames with big air-leakage problems. Whole-house residential foam during renovations pays for itself fast.
• Bay Ridge, Bensonhurst, Dyker Heights: Detached and semi-detached homes with full basements — closed-cell basement foam is the top request here.
• Williamsburg, Greenpoint, Gowanus: Converted lofts and new mixed-use construction. We handle both residential and commercial work, including code-compliant envelope insulation.
• Coney Island, Sheepshead Bay, Canarsie: Near the water, where closed-cell foam's moisture resistance and storm resilience matter most.

Rebates for Brooklyn Homeowners

National Grid customers in Brooklyn can often qualify for energy efficiency rebates on insulation upgrades, and federal tax credits may apply as well. We'll flag the current programs during your free estimate so you don't leave money on the table.

We also serve Queens, Manhattan, the Bronx, Staten Island, and Long Island. Wondering what it costs? See our Brooklyn spray foam cost guide.