Building Envelope Solutions
Basement and crawl space insulation
Cold floors, damp basements and drafts at the baseboard usually start below the house. The rim joist, where the floor framing sits on the foundation, is one of the leakiest spots in a home.
Staten Island homes have full basements, crawl spaces and garages under living space, all of which can make the floors above cold.
What we insulate
- Rim joists: foam around the band on the foundation.
- Basement walls: for heated or finished basements.
- Crawl spaces: under additions and split-level wings.
- Garage ceilings: under bedrooms, where floors are coldest.
Why closed-cell foam
Closed-cell spray foam seals and insulates in one layer, and it doesn’t absorb water, so it suits concrete, block and stone foundation walls. Where a space needs a fire-rated covering, we tell you before we start.
Rebates
Staten Island has National Grid gas and Con Edison electric. Most one- to four-family homes now go through NYSERDA programs. For 2027, Con Edison and National Grid plan one joint weatherization program for market-rate homes and apartment buildings. We check what is open for your address before we price the job. See the NYC rebate guide.
Common questions
Do you insulate the basement walls or the ceiling? If the basement is heated or you use it, the walls and rim joist. If it is cold storage, sometimes the ceiling instead. We decide after we see it.
Is the estimate free? Yes. Call (347) 200-5089.