Crawl space vapor barrier in Gastonia NC - ground covered edge to edge, water fixed first
Damp smell, muddy dirt floor or torn old plastic under the house? We fix the water, then cover the ground completely.
Does my Gastonia crawl space need a vapor barrier?
A crawl space vapor barrier in Gastonia, NC is heavy plastic laid over the dirt under your house. It works in a vented or a sealed crawl space, keeps ground moisture down where it belongs and helps keep soil gases from coming up into your home.
Most calls start with a musty smell, cold floors or a crawl space you'd rather not look at. Fair enough. Nobody puts it on the house tour. Under houses around Gastonia we usually find water getting in, poor drainage and an old liner that leaves dirt showing and was never sealed to the walls. The price moves with the size of the space, how much has to come out before we can work, whether water has to be fixed first and whether you want a plain liner or a sealed crawl space with crawl space insulation on the walls. The schedule turns on the same things plus any permit, and your estimate spells out which of them apply to your house.
What happens after you call about a crawl space vapor barrier in Gastonia?
Call or send a message
Call (980) 745-0005 or use the form, and give us your address early because we work in Gastonia and the cities around it on both sides of the state line. We'll set a time for me to come out.
I look under your house
I come out myself, get into the crawl space and look at the vents, any water and anything stored down there that's in the way. You get an estimate I write myself that says whether water work comes first and whether I'd go with a basic liner or a sealed crawl space.
We fix water, then lay plastic
Once any paperwork is done, our own crew takes care of drainage and wet spots before any plastic goes down. Then they cover the ground and work through the crawl space access, so most of the house stays out of it.
I check it before we leave
I go back under and check the crew's work, and we clean up before we pack the truck. Satisfaction guaranteed.
How we put in a crawl space vapor barrier
First I find where the water comes from, whether it's a gutter dumping at the foundation, dirt sloping toward the house or a leak, because plastic laid over a wet spot just hides it. We fix drainage and site moisture before anything goes down, and we lay the liner so water still drains the way it already does instead of pooling on top. Then our crew covers the dirt completely, with no bare strips at the walls or around the piers. The usual guidance is to run the plastic up the walls and piers and fasten it where needed so it stays there for the long haul. After that I tell you plainly whether that liner is enough for your house or a sealed crawl space makes more sense, and why.
Damp doesn't always stop at the crawl space, so we also do vapor barrier installation in other parts of the house that need it. Air also tends to rise through a house and leak out the top, which pulls crawl space air up behind it. That's why attic air sealing, which closes the gaps up there before any insulation goes in, often goes with this job.
Get an estimate for your crawl space vapor barrier
Send the form and we'll get back to you within 1 business day to set up a visit. I come out, look at your crawl space and give you a free quote on site, with no pressure and no obligation.
Crawl space vapor barrier questions in Gastonia
What does a crawl space vapor barrier cost in North Carolina?
A basic crawl space vapor barrier, installed on its own, usually costs about $1,500 to $4,000 per job in North Carolina. That's the going rate for a plain liner across the state, not our price, and where your house lands depends on the size of the space, what has to come out first and any water work. The estimate I write on site gives you your own number.
Should I seal my crawl space vents in Gastonia?
Only as part of a full plan for sealing the crawl space, not on their own. Warm outdoor air can carry moisture in through the vents and leave it on the cooler framing, which is why building scientists recommend insulated, unvented crawl spaces in humid climates. If vents get closed without handling the other details, moisture can climb, and it can be deadly when a furnace or water heater that burns fuel and depends on natural air flow sits down there, so the plan has to cover any equipment before a vent gets closed.
How do I choose between a vapor barrier and crawl space encapsulation?
I usually point people to a basic liner when the space stays dry once the water is fixed, and toward full encapsulation, sealing and insulating the whole crawl space, when moisture keeps coming back or the ductwork lives down there. Encapsulation is a bigger job than a liner alone and costs more for most homes. If you go that way, ask whether the seams and the spots where pipes pass through the plastic will be sealed, since guidance calls for that in sealed crawl spaces, and guidance also recommends watching temperature, humidity and moisture in the floor joists for a while afterward, preferably a year.
Who issues permits for crawl space work in Gastonia?
Gaston County's permitting office issues construction permits for Gastonia projects, after you provide a zoning permit from the City of Gastonia approving the project. The county's building inspections department then enforces the state building codes in the city. If you're not sure your job needs a permit, the city's permits and inspections office is the place to ask, and when one is needed, we check which city and county offices cover your address and handle the paperwork before work starts.
Does a contractor need a license to install a crawl space vapor barrier in NC?
North Carolina's general contractor licensing board says a general contractor has to be licensed by law when the total project cost is $40,000 or more. That line is about the size of the whole project, so a smaller liner job can fall under it. We're licensed and insured either way.
How do I get my crawl space ready for a vapor barrier?
Clear out anything stored down there, along with old boards and debris, so the plastic can cover the ground completely. If there's more than you want to haul out or you can't reach it, point it out when I'm there for the estimate and I'll note it.
Other work that pairs with a crawl space liner
Vapor barrier installation
Worth it when damp is getting into a part of the house beyond the crawl space, so the moisture stops at the barrier instead of the framing.
Attic air sealing
Worth a look if upstairs runs hot or drafty, because leaks at the top of the house keep drawing air up from underneath.
Book a look at your crawl space
Call (980) 745-0005 or use the form, and if you can, jot down whether your crawl space has vents, any standing water and any gas furnace or water heater down there, since those decide which job makes sense.