Spray Foam Insulation in Washington
Washington is one of Litchfield County's most affluent towns, a collection of estates, antique colonials, and country retreats set in the hills above the Shepaug River. The homes are refined and often historic, and they ask for insulation that performs without disturbing the character.

Insulation built for Washington homes
Sebastian Spray Foam is a Brookfield, CT insulation contractor working in Washington and across Litchfield County. We install open- and closed-cell spray foam, attic, crawl space and rim joist insulation, air sealing, blown cellulose and fiberglass, and batt insulation in Washington homes. Homes around Washington lose the most energy where you can't see it, the attic, the rim joists, and the gaps inside finished walls. Our licensed, insured crew seals those leaks so your home holds its temperature through every Connecticut season, with lower bills to match.
What Washington homes are built like
Much of Washington's housing is 18th- and 19th-century, with post-and-beam framing, plaster walls, and attics and cellars that were never sealed for modern comfort. Even the newer estate homes carry large volumes that are expensive to heat when the envelope leaks.
Working in Washington
Around Washington Depot and the outlying estates, the older houses hold their value in their character, so we seal the attic, walls, and foundation carefully, keeping the original fabric intact.
In the trade since 2017
Nine years of experience, a Brookfield family business, not a call center.
Licensed & insured
CT HIC.0660083, licensed in Westchester & Putnam Counties NY, and fully insured.
A crew, not a subcontractor
Fifteen people and four rigs, so the work is ours from start to finish.
Spotless job sites
We mask, protect, and leave it cleaner than we found it.
Questions from Washington homeowners
Do you work in Washington?
Yes. Sebastian Spray Foam is based on Federal Road in Brookfield, CT and works across Litchfield County, including Washington and nearby Roxbury, Litchfield and New Milford. Call (203) 546-7800 or request an estimate and we will set up an in-home assessment.
Why are the floors in Washington homes near the water so cold?
Cold floors and musty air usually start under the house. In a vented crawl space or at an open rim joist, damp outside air moves up into the living space. Closed-cell spray foam on the crawl space walls and rim joists blocks ground moisture and the drafts that come with it, which is why it is the material we specify there.
What happens when I request an estimate in Washington?
First, an in-home assessment: we inspect your attic, walls or crawl space and find where the house is leaking energy. In Washington that usually means the crawl space and rim joists first, for the moisture, and then the attic. Then a clear quote, with the right material for each space, the same way we quote in Roxbury, Litchfield and New Milford. Then the install: our own crew seals the envelope, protects your home throughout, and leaves it spotless, anywhere in Litchfield County.
Serving Washington & nearby
No-obligation assessments across Litchfield County. We serve Washington and the towns around it.
Request an estimate(203) 546-7800Commercial project in Washington?
We handle offices, retail, warehouses, and new construction across Litchfield County, with a schedule you can build around.
See commercial insulationNearby areas
We leave it cleaner than we found it.
We show up when we say we will.
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.
