Charleston · Mount Pleasant · Summerville · James Island · West Ashley

Crawl space encapsulation & repair in Charleston, SC

Tell us about your crawl space once. We match you with a vetted local pro for a free inspection and written quote. Free for homeowners, no obligation.

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Free for homeowners, no obligation
One vetted local pro, not a bidding list
Real Charleston price ranges, with sources

Get free crawl space quotes

Takes about 2 minutes. A vetted local pro will contact you, usually within one business day.

Your name *Phone *Email *ZIP code *Town / area *What do you need? *Approx. crawl space size (sq ft) *Main problem *Property *Roughly when was the home built?When do you want the work done? *Project details *

I agree that Charleston Crawl Space Quotes may share my request with up to one or two local pros who may contact me about it. Privacy · Terms *

Free, no obligation. Charleston Crawl Space Quotes is a referral service, not a contractor: how it works.

How it works

Tell us about the crawl spaceSize, what you've noticed (musty smell, standing water, sagging floors) and your town. About two minutes.
We match you with a local proWe pass your request to one vetted crawl space pro who serves your area, usually within one business day.
Get a free inspection and quoteThe pro contacts you to inspect and give you a written quote. You decide; there's no obligation.

Crawl space services we can match you with

Crawl space encapsulationSeal the crawl space with a heavy liner, closed vents and controlled humidity.Vapor barrier installationReplace torn or thin plastic with a sealed ground barrier.Crawl space repairSagging floors, rotted joists, beams and sill plates.Crawl space dehumidifiersA sized dehumidifier to keep humidity in check year-round.Drainage & sump pumpsFor crawl spaces that hold water after rain.Crawl space insulationWall or subfloor insulation that tolerates moisture.Crawl space mold remediationClean and treat mold before sealing the space.

What crawl space work costs in Charleston

Item	Published range	Source
Full encapsulation, Charleston installer range	$4,500–$12,000	Fortress Moisture Seal Charleston, crawl space encapsulation page
Full encapsulation, national average	$5,500	Angi, How Much Does Crawl Space Encapsulation Cost? (updated Oct 28, 2026)
Ground vapor barrier, 1,500 sq ft	about $1,050–$2,100	Coastal Crawlspaces (Charleston installer), published price list
Dehumidifier, installed	$1,000–$3,000	HomeGuide, How Much Does Crawl Space Encapsulation Cost? (Jan 14, 2026)
Crawl space repair	$1,500–$15,000	Angi, How Much Does Crawl Space Encapsulation Cost? (updated Oct 28, 2026)

Read the full Charleston cost guide →

Why crawl spaces struggle in the Lowcountry

Charleston's warm, humid air and low-lying, often wet ground give crawl spaces a hard time. When humid outside air meets the cooler space under your floor, moisture condenses on wood, ducts and insulation. Over time that can mean musty smells upstairs, sagging insulation, mold on joists, soft floors and pests that like damp places. The fix depends on the cause: sometimes a new vapor barrier, sometimes full encapsulation with a dehumidifier, sometimes drainage or wood repair first. A good pro will show you photos of what's actually down there.

Areas we cover

We accept crawl space requests across the Charleston metro, from the peninsula and the islands to Summerville, Goose Creek and Moncks Corner.

Downtown Charleston West Ashley James Island Johns Island Mount Pleasant Daniel Island North Charleston Summerville Goose Creek Hanahan Ladson Moncks Corner Isle of Palms Folly Beach Kiawah Island Sullivan's Island

Common questions

Is this service really free?

Yes. You never pay us. The pro may pay us a referral fee if you hire them. That fee never costs you anything extra, and you are never obligated to hire anyone.

Are you a crawl space company?

No. We are a referral service. We don't do the work. We pass your request to an independent, vetted local pro who inspects and quotes the job.

How much does crawl space encapsulation cost in Charleston?

A Charleston installer publishes $4,500–$12,000 for full encapsulation (Fortress Moisture Seal Charleston, crawl space encapsulation page). The national average is $5,500 (Angi, How Much Does Crawl Space Encapsulation Cost? (updated Oct 28, 2026)). See our cost guide.

How fast will someone contact me?

Usually within one business day, by phone or email. If there's active water under the house, say so in the form.

How many companies will call me?

One pro for your area. If they can't help, we may pass your request to one other. We don't sell your details to lead lists.

All questions →

Referral service disclosure. Charleston Crawl Space Quotes is not a contractor. We pass your request to an independent local pro who may pay us a referral fee if you hire them. That never costs you anything extra, and you are never obligated to hire anyone. Full disclosure.