Spray Foam Insulation in Wyomissing, PA

Spray Foam Insulation in Wyomissing works mostly on homes from the 1970s through the 1990s. Census estimates compiled by Point2Homes put Wyomissing's median year built at 1976, with 21.0% of homes from the 1970s, 15.5% from the 1980s and 15.8% from the 1990s. About 47.4% are single-family detached, 19.1% are attached, and 66.9% of occupied homes are owner-occupied.

Mill-owner roots

Thomas P. Merritt bought 600 acres here in 1896, and Ferdinand Thun and Henry K. Janssen, founders of Textile Machine Works and Berkshire Knitting Mills, led the push for incorporation. The older parts of the borough have houses from that era, with stone foundations, plaster walls and thin attics.

1970s to 1990s homes

Colonials, split-levels and ranches from those decades usually have some attic insulation, often thin and settled, plus bare rim joists and leaky attic hatches. Attic sealing, cellulose to R-49 or more and rim joist foam are the usual plan. Bonus rooms over garages may need floor and kneewall work.

Growing

The 2020 census counted 11,114 residents, up from 10,461 in 2010. Wyomissing merged with Wyomissing Hills in 2002.

Code and zone

Pennsylvania's 2021 UCC took effect January 1, 2026. Berks County is in PHRC's Central zone and OpenEI's Zone 5A. DOE recommends R-60 for an uninsulated Zone 5 attic, or adding R-49 over 3 to 4 inches.

A typical Wyomissing job

For a 1970s colonial, a common plan is: seal the attic floor, top up to R-49 or more with cellulose, foam the rim joist and fix any cold bonus room. For an older house near the mills, add wall dense-pack and sill foam.

Older mill-era homes

For the older houses near the original mill district, we check for knob-and-tube wiring and vermiculite before anything else, then seal the attic floor, blow cellulose to depth, foam the sill and rim, and dense-pack frame walls.

Costs

HomeGuide lists an average attic job at $1,000 to $2,700 and rim joist foam at $2,000 to $2,500. Your written estimate is the price. Get a free estimate