Crawl space services
Sealing the crawl space, drying it, and fixing what the damp has already done, each priced on its own line.
The price list
Ballpark prices. The firm one comes after a look under the house.
Sealing it
Full encapsulation$3.50 a sq ft
Liner on the ground and walls, vents and door sealed, plus a dehumidifier.
Vapor barrier installation$2 a sq ft
A 12 mil liner over the dirt, seams taped, run up the walls and fastened
Insulation and vent sealing$2.75 a sq ft of wall
Wet batts out, foam board on the walls, vents and access door sealed
Drying it
Dehumidifier installation$1,600
A dehumidifier sized for your closed crawl space, with a condensate drain
Drainage and sump pumps$2,200
Gutters and grade first, then a drain line and sump pump for what still gets in
Fixing what’s there
Mold remediationfrom $900
Mold treated on the framing, and the moisture that fed it fixed
Crawl space repairafter a look
Rot, sagging joists and sill damage, priced after we see the framing
Each service
- Vapor barrier installationCrawl space vapor barrier installation in Seneca and Oconee County. A 12 mil liner, seams taped, run up the walls and fastened. See our ballpark price.
- Dehumidifier installationCrawl space dehumidifier installation in Seneca, SC: a unit sized to the maker's specs, a condensate drain and a humidity setpoint. See our ballpark price.
- Insulation and vent sealingCrawl space insulation in Seneca, SC: we pull down sagging, wet floor batts, fit foam board to the walls with a termite inspection gap and seal the vents.
- Drainage and sump pumpsStanding water in your crawl space? Fix the outside water first, then add an interior drain line and sump pump. Ballpark prices for Seneca and the Upstate.
- Mold remediationCrawl space mold remediation in Seneca, SC: we treat mold on joists, sills and subfloors and fix the damp air and water that let it grow. Ballpark prices.
- Crawl space repairCrawl space repair in Seneca, SC for wood rot, sagging joists and sill damage. We measure wood moisture, price after a look and fix the damp behind it.
Before you choose
- Crawl space encapsulation cost in SCWhat crawl space encapsulation costs in Upstate SC: national price ranges, our ballpark by crawl space size, add-on prices and what pushes a job up.
- Is crawl space encapsulation worth it?An honest look at whether crawl space encapsulation is worth it: when it pays off, when it does not, the real downsides and what a field study found.
- Encapsulation vs. a vapor barrierThe difference between a crawl space vapor barrier and full encapsulation, what each one costs, and why a plastic sheet alone rarely keeps a crawl dry.
- Crawl space vents: open or closed?Should crawl space vents be open or closed in SC? What Upstate dew points and a vented crawl space study show, and why closing the vents is not enough.
What crawl space trouble looks like
Price your crawl space
Set the size and what you see down there. The slip adds up a ballpark in a minute.
