Spray Foam Insulation in Dover, PA

Spray Foam Insulation in Dover covers a borough whose biggest building decade was the 1970s. Point2Homes' census summary shows 28.9% of homes from the 1970s, 15% from the 1990s and 15.9% from 1939 or earlier. About 66.6% of occupied homes are owner-occupied.

100 years to incorporate

Dover was incorporated in 1864, 100 years after its founding. The borough covers 0.5 square miles and had 790 housing units at the 2000 census.

1970s houses

These homes usually have a few inches of attic insulation, little air sealing and bare or batt-covered rim joists. Sealing and topping up the attic and foaming the rim are the main jobs.

Older core

Older homes near the center need wall insulation and attic work.

Code and climate

Dover is in York County's Climate Zone 4A, where Pennsylvania's code lists R-49 for ceilings and ENERGY STAR recommends adding R-49 to an attic with 3 to 4 inches. A 1970s attic usually has about that much, so the plan is to seal the ceiling and blow cellulose or fiberglass to depth. Rim joists in homes of that era are often bare or covered with a loose batt; closed-cell foam seals and insulates them in one step. Both jobs together usually take a day or two.

Older core homes

Dover's older homes near the square, built before 1940, often have empty walls, shallow attics and stone or block foundations. For those, we check wiring and moisture first, then dense-pack the walls, seal and insulate the attic, and foam the rim. Homes from the 1990s on the edges of the borough need different work: bonus rooms, knee walls and recessed lights. Each area is priced separately on the written quote, and we explain which areas give the most return so you can set the order.

Call (717) 864-6430 or get a free estimate for a visit and written price.