Vapor barrier installation in Summerville SC - a covered, drier crawl space floor
Damp, musty air coming up from the crawl space? We cover the dirt floor with a liner so less ground moisture rises toward your house.
I come out for every estimate
I do every estimate visit myself. That means the person who gets under your house and looks at the floor, the walls and any equipment down there is the same person who writes up what we'd do.
Based in Summerville since 2020
I started this business in Summerville in 2020. We're known for doing the dull prep first, because a liner laid over a wet spot or a pile of debris just hides the problem instead of fixing it.
Licensed and fully insured for this work
We're licensed and fully insured, and that matters in a cramped crawl space full of wiring and pipes. Your satisfaction, guaranteed. Call (843) 285-6022 or use the form, and I'll come take a look.
Vapor barrier installation in Summerville
Vapor barrier installation in Summerville means laying a plastic ground cover, also called a vapor retarder, over your crawl space floor. It cuts down the ground moisture and soil gas, such as radon, that rise under your house. It's for homes with bare dirt, torn plastic or damp air below.
The first thing we settle is whether you need a plain liner on the ground or a fully sealed crawl space, because that choice moves the price more than anything else. After that, cost depends on the size of the space and how far up the walls and piers the liner runs. It also depends on how heavy a liner you pick and on anything that has to be fixed or hauled out before it goes down.
The schedule mostly comes down to that prep, since a wet spot, torn old plastic or a crawl space full of boxes gets dealt with first. I'll put what I'd do, and in what order, in writing at the estimate. Whoever you hire, ask about licensing. Summerville requires the state license that fits the work plus a city business license, and the state's residential builders board counts anyone hired for specialized trade work over $500 as a residential specialty contractor.
How we do vapor barrier installation
Plain liner or sealed crawl space
The big decision is how far to go. A plain ground liner covers the dirt, and it's the smaller job. A sealed crawl space puts a sealed liner on the floor and the outer walls, then adds a drying system such as conditioned air or a dehumidifier, so it's a bigger project. I'll tell you which one your house calls for. If the space is just damp and no ductwork or equipment lives down there, a good liner is usually enough, and I won't talk you into more.
The liner covers the whole floor
A liner only works where it actually lies. Federal installer guidance calls for covering the whole crawl space floor, or as close to it as you reasonably can, and running the liner up the walls, the columns and the footings under them. The same guidance says to lay it so the space's existing drainage keeps working. In a sealed crawl space, it also says to close the seams and openings with a sealant that suits the liner. When you compare quotes, ask whether each one covers the full floor and goes up those surfaces.
A heavier liner where people crawl
If someone has to get under your house to service a furnace, a water heater or ductwork, I lean toward a heavier liner. Basic 6-mil plastic, the thin standard sheet, needs protecting along the paths workers crawl, while thicker, reinforced plastic is more durable and stands up to that traffic. A liner takes care of the ground. If the rooms above still won't hold their temperature, attic air sealing closes the gaps up top, and retrofit insulation adds insulation to the house you already have.
Get a written plan for your crawl space liner
Send your address and tell us whether any equipment sits in your crawl space. We'll reply within one business day to set up a free estimate at your home, and there's no obligation.
(843) 285-6022What happens after you call
I come out and look
Once you call or send the form, I come out myself. I get under the house, check the floor, the walls and any equipment, and look for anything that has to be fixed before a liner goes down.
You get the plan in writing
At the visit I tell you what I'd do and in what order, whether that's a plain liner or a sealed crawl space, and which liner I'd use. You get all of it in writing to look over.
Our installers lay the liner
Our installers do the work. Inside Summerville, the city allows construction between 7 AM and 9 PM, so that's when we're working there. When the crew finishes, I look it over myself before we call the job done.
Vapor barrier questions in Summerville
How much does a vapor barrier cost in South Carolina?
A basic vapor barrier, meaning a ground liner only, usually costs about $1,200 to $3,800 per job in South Carolina. Sealing the whole crawl space costs more, because it adds the wall moisture, air sealing and humidity control that a liner alone leaves out. I'll put the plan for your house in writing at the estimate.
Should I seal my crawl space or just cover the ground?
A plain liner is usually enough for a damp crawl space, and sealing is worth the bigger job when you want it drier. In the humid Southeast, a field study found a properly closed crawl space ran substantially drier and cut yearly heating and cooling energy use significantly. Sealed designs send dryer, kitchen and bath exhausts outside the crawl space, so ask where yours end.
What should I do before the vapor barrier crew comes out?
Clear out whatever you've stored in the crawl space, because the liner has to cover the whole floor and can't do that around boxes. Installer guidance calls for taking out stored items and debris as needed, so moving your own things first gets install day off to a quicker start.
Who handles permits and inspections in Summerville?
The Town of Summerville Building Department handles permits and inspections through CitizenServe, an online service for scheduling inspections and tracking projects to completion. Which office covers your job depends on your address, so we sort that out before we start and take care of any permit the job needs.