Spray Foam Insulation in Watertown, MA

Spray Foam Insulation in Watertown covers one of the first Massachusetts Bay Colony settlements, organized by Puritans in 1630 according to Wikipedia. The city had 35,329 residents in 2020 and includes the neighborhoods of Bemis, Coolidge Square, East Watertown, Watertown Square and the West End. The Charles River runs along its southern side, and the historic Watertown Arsenal operated from 1816 to 1995.

Typical housing

Watertown has many two-families and older single-family homes from the late 19th and early 20th centuries, along with mid-century houses. Older homes typically have empty walls, thin attic insulation and bare rim joists. Two-families add shared walls, stacked porches and a top unit under the roof.

Near the river

Homes near the Charles and on lower ground can have damp basements. Closed-cell foam on the rim keeps humid air off cold framing. Water entry needs drainage work first.

Two-family plans

In a two-family, we usually start with the basement rim and the attic or roof cavity, then fill the walls. Each part is priced separately so owners can phase the work.

Mass Save

Mass Save lists no-cost assessments for one- to four-unit homes and 75 to 100 percent off approved insulation. Start there if you want those incentives; for work outside the program, we price directly.

Checks first

We check wiring, vermiculite and moisture before planning.

Costs for a two-family

HomeGuide lists rim joist foam at $2,000 to $2,500, air sealing at $350 to $3,000 and blown-in exterior walls at $1,900 to $7,800 nationally for single-family houses. A two-family has a larger footprint and two sets of walls, so we measure and price each area. Many Watertown owners start with the rim and the attic, then add walls later. The written estimate after our visit is the actual price.

Get started

We visit and send a written quote. Get a free estimate