Canyon County, Idaho
Crawl space repair in Nampa
Nampa has a little of everything: older homes around downtown and the north side, and new subdivisions going in on what used to be farm ground. Indian Creek runs through town, and irrigation canals and drains run all through the area.
That mix means we see everything from an old house with no barrier at all to a ten-year-old crawl space that takes on water every July.
What we run into in Nampa
No barrier, or close to it
Older homes where the ground is mostly bare dirt, or the plastic has broken down to scraps.
Canal-season water
Homes near canals, drains, or Indian Creek can see the water table rise while irrigation runs.
Rentals and flips
Investors and landlords who need the crawl space fixed right once, with photos to show for it.
A recent Nampa job
[A real Nampa job: neighborhood, what you found, what you did, one photo]Why it’s dry in March and wet in August.
From roughly April to October the canals run full for irrigation. In parts of Nampa, that pushes the water table up, and it comes into the crawl space from underneath, not through the walls.
Exact dates vary by irrigation district and by year. So does how much it affects a given street.
What that means for you: a crawl space that looks fine at a spring inspection can have standing water by midsummer. If you put a new barrier down without handling that, the water ends up trapped under the plastic.
If yours is wet in summer and dry in winter, it’s probably groundwater, not a leak. That’s the first thing we check. Water removal and sump pumps
What we do in Nampa
Selling a Nampa home and the inspector flagged the crawl space? Here’s how home-sale repairs work.
Water removal and sump pumps
Pump it out, find where it comes from, and give it a permanent way out.
Call when: Standing water, wet dirt, or a pump that runs all summer.
Vapor barrier replacement
Pull the old plastic, fix what’s under it, and put down a barrier that’s sealed and fastened.
Call when: Torn, thin, or missing plastic, or an inspector’s note about the barrier.
Crawl space encapsulation
Sealed liner on the ground and walls, vents closed, and the air dried.
Call when: Repeat moisture, ductwork in the crawl space, or you want it done once.
Mold remediation
Clean and treat the framing, then fix whatever kept it wet.
Call when: Dark staining or growth on joists and subfloor, or a musty smell.
Crawl space insulation
New insulation under the floor or on the walls, with old, wet, or damaged insulation pulled out first.
Call when: Cold floors, no insulation at all, or batts hanging down, wet, or torn up by rodents.
