Spray Foam Insulation in San Lorenzo, CA

Spray Foam Insulation in San Lorenzo usually means a house from San Lorenzo Village. The David D. Bohannon Company began building the Village in 1944 under a U.S. Navy contract, with two- and three-bedroom homes for East Bay war-industry workers; construction continued into the 1950s. Bohannon's pre-cutting methods, called the California method, were later used in Levittown, Pennsylvania.

What Village homes need

Houses built fast in the 1940s and 1950s had little insulation by today's standards. Attics usually need sealing and depth, and walls often need dense-pack fill. Many owners have added rooms over the years, and additions need their own check.

Large households

San Lorenzo households are large, averaging 3.37 persons, and 94.2% of residents lived in the same house a year earlier (Census ACS). Families who stay put get years of comfort from insulation work.

Housing

San Lorenzo had 29,581 residents and 9,198 housing units at the 2020 census, and is governed directly by Alameda County.

Zone

OpenEI lists Alameda County in climate zone 3C. ENERGY STAR recommends adding R-38 over three to four inches of existing attic insulation in zone 3.

Additions

Small original houses often gained a family room, bedroom or garage conversion. Those spaces were insulated by different builders at different times and are often the least comfortable rooms.

Garage conversions

If you are converting a garage into living space, it must meet current codes, including the Energy Code. We install insulation to the values on your plans.

Owners who stay

With so many residents staying in the same house year after year, insulation pays back in comfort over a long time. Our itemized quotes let you phase the work.

We visit and quote each area in writing. Get a free estimate