Leaky basements are one of the four major
sources of builder callbacks, according to
the National Association of Home Builders
(NAHB).
In fact, a 1983 NAHB survey showed that
88 percent of all builders questioned had
received calls on leaky basements at some
point in their careers — and that 80 percent
of home owners questioned would spend
an extra $400 to have their basements guaranteed
not to leak.
Furthermore, a 1981 survey by Owens-
Corning of more than 31,000 families
nationwide showed that 44 percent of the
basements in new homes leaked, as did 60
percent of existing basements.
According to engineer Brent Anderson,
whose September 1985 article in Progressive
Builder is the source of these statistics,