Crawl spaces

Crawl space waterproofing in Columbus

A damp crawl space sends moisture up into the house above it. Liner, sealed seams and the right moisture control turn it into a dry, clean space.

(380) 261-2333 Free inspection

Crawl space fully lined with a white reinforced vapor barrier on the floor and walls, seams taped

What encapsulation includes

The work is scoped to the space, but a full job usually covers:

Clearing debris, old plastic and fallen insulation.
Dealing with standing water first: a drain or small sump if water collects.
A heavy reinforced liner over the dirt floor and up the foundation walls, seams overlapped and taped.
Closing or sealing foundation vents and the rim joist gaps where outside air pours in.
A dehumidifier where the space needs active drying, drained to a sump or outside.

Damp crawl space with a bare dirt floor, torn old plastic and a puddle under the joists — Before: bare dirt, torn plastic, standing water.

Compact dehumidifier sitting on a white liner inside an encapsulated crawl space — After: sealed liner and a dehumidifier sized for the space.

Why it matters upstairs

Air moves up through a house. A wet crawl space feeds humidity into the floor above, softens wood framing and gives mold and pests what they need. Many houses in central Ohio pair a basement with a crawl space under an addition or a porch, and the crawl space is the part nobody looks at.

What we check first

Is water getting in, or is it condensation from humid outdoor air?
Do the downspouts and grade send water toward the crawl space walls?
Is there wood damage that needs attention before the liner goes in?

See typical prices on crawl space encapsulation cost.

Price a crawl space

We call back the same day to set a time. The inspector walks the basement and the outside grade with you, then you get the price in writing before any work starts.

Water in the basement?

Our phone line runs every minute of the year. Say where the water shows up and we set the inspection.

(380) 261-2333

Crawl Space Waterproofing

Common questions

Should crawl space vents be closed?

In a sealed, encapsulated crawl space, yes: humid summer air coming in through vents is a major moisture source. In an unsealed one, closing vents alone can make things worse. It is part of the whole plan, not a standalone fix.

Do I need a dehumidifier?

Not always. Some spaces stay dry once the liner is down and the vents are sealed. Where readings stay high, a dehumidifier finishes the job.

Can you work in a very low crawl space?

Usually, yes. Very low or obstructed spaces take longer and may cost more; we note that on the estimate.

Does the liner help with storage?

A reinforced liner is clean and tough enough for light storage, which many owners use it for.