Sebastian Spray Foam
Fairfield County · CT

Spray Foam Insulation in Greenwich

Greenwich holds some of the oldest and largest homes in Connecticut, most built long before anyone thought about air sealing. Stone colonials, converted carriage houses, and waterfront estates share the same problem: beautiful construction with almost no barrier against the cold.

Sailboats moored off Greenwich Point Park on Long Island Sound in Greenwich, Connecticut

Insulation built for Greenwich homes

Homes around Greenwich 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 Greenwich homes are built like

Much of the housing here predates 1940, with plaster walls, balloon framing, and unfinished attics that were never designed to hold heat. Renovations routinely uncover wall cavities with no insulation in them at all.

Working in Greenwich

Backcountry Greenwich sits on large wooded lots where the homes tend to have deep attics and unconditioned crawl spaces. Those two spaces are where we find most of the heat loss on properties in that part of town.

In the trade since 2007

Nineteen years of experience, a Brookfield family business, not a call center.

Licensed & insured

CT HIC.0660083, licensed in Westchester & Putnam Counties NY, and insured to $2 million.

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.

Serving Greenwich & nearby

Free assessments across Fairfield County. We're probably already working nearby.

Request an estimate(203) 546-7800

Commercial project in Greenwich?

We handle offices, retail, warehouses, and new construction across Fairfield County, with a schedule you can build around.

See commercial insulation
What you can count on

We arrive when we said we would.

We do not reschedule.

We usually finish a day early.

We leave it cleaner than we found it.

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 schedule, spotless, and finished when we said we would.

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