Crawl Space Repair in Portland, OR

"Crawl space repair" is one phrase covering a handful of very different jobs. Whatever happens in the gap between the soil and the floor framing under your house tends to get filed under this label, but in the Portland metro it almost always comes down to three problems: moisture (encapsulation, vapor barriers, drainage, sump pumps), heat loss (insulation replacement, rim joist sealing), and what the moisture eventually grows or attracts (mold remediation, rodent exclusion).

Different homes in the metro have different needs. A 1925 craftsman in Sellwood with a dirt floor and original cedar joists is a different project from a 1985 ranch in Beaverton with sagging fiberglass batt and a torn 4-mil vapor barrier. The soil matters too: Willamette silt loam in the lowland neighborhoods holds winter water at the foundation for months, while Cascade clay in the West Hills sheds it downhill toward whoever lives below. A licensed Oregon CCB contractor inspects the actual conditions, identifies the moisture source, and recommends the specific combination of services your home needs. Most homes need two or three of the seven services listed below, not all of them.

A recent example of how scopes actually combine: one referred contractor reported on a 1992 Beaverton split-level where the owners had noticed cold floors. Under the house, the original 4-mil poly was in tatters, all the R-19 batt was lying on the dirt, and one corner held standing water traced to a kicked-off downspout extension. Three days of work, around $10,000 finished, and the owners reported their gas bill dropped roughly 18% the following winter. That project touched four of the seven services; it needed zero of the other three.