Sebastian Spray Foam
Open- and closed-cell foam

Spray Foam Insulation

Our specialty. Expanding open- and closed-cell foam bonds to every stud, gap, and corner, forming one continuous barrier against air, moisture, and heat loss.

Framed wall cavities sealed with closed-cell spray foam, before drywall

Why homeowners choose it

  • Seals drafts other insulation leaves behind
  • High R-value in a thinner profile
  • Adds rigidity and resists moisture & mold

How we install it

1

In-home assessment

We inspect your attic, walls, or crawl space and find exactly where your home is leaking energy.

2

A clear, fair quote

You get a straightforward plan and price, the right material for each space, no upsell.

3

Clean, expert install

Our expert crew seals the envelope, protects your home throughout, and leaves it spotless.

Open-cell and closed-cell

Spray foam comes in two forms, and the right one depends on the space. We specify it during your assessment.

Questions homeowners ask

Open-cell or closed-cell: which one does my space need?

Open-cell foam is softer, expands more to fill gaps, and is excellent for sound control in interior walls and roof decks. Closed-cell foam is denser, water-resistant, adds structural rigidity and gives a higher R-value per inch, which makes it the standard for crawl spaces, rim joists and tight rafters. Many homes use both. We specify the one that fits each space during the assessment.

Is spray foam safe once it is installed?

Yes. Once cured, spray foam is inert. It seals out dust, pollen and outdoor pollutants, which is part of why a sealed home has cleaner indoor air. Our crew installs it at the correct ratio and thickness, protects your home throughout, and cleans up completely.

How long does a spray foam job take?

Most residential attic or crawl space jobs are finished in a single day. Larger whole-home or new-construction projects take longer. You get a clear timeline with your quote.

Best for

Attics, roof decks, rim joists, cavity walls, crawl spaces

Not sure if spray foam is right for your space? We'll assess your home for free and recommend the material that actually fits.

Request an estimate

Done properly the first time.

Request an estimate and we'll assess your home or building, specify the right material for each space, and give you a clear plan. On time, and spotless when we leave.

Call nowRequest an estimate