Vapor barrier installation in Hampton VA - ground moisture kept under the plastic
Musty air or torn plastic in your crawl space? We lay a vapor barrier that covers the dirt floor and holds up where people walk.
- Licensed and fully insured.
- Free in-person estimates.
- We respond within 1 business day.
Does my crawl space need a vapor barrier?
Vapor barrier installation in Hampton means our crew lays plastic sheeting over the dirt floor of your crawl space so the ground under your house is covered instead of open to the air down there. You'll also hear it called a vapor retarder or a plastic ground cover, and it's the same thing.
Most folks call us after crawling under to check a pipe and finding bare dirt or old plastic that's torn and bunched in a pile, or after someone told them the whole space has to be sealed up. The price mostly comes down to the size of the space, how many piers the liner has to fit around, how high the crawl space sits, how complicated the foundation's outline is, which liner you pick and whether we're covering the floor or closing the whole space, and those same things set how long we're down there. I'll look at it with you and write up each option, so you can see what you'd be paying for before you decide.
How our crew installs a vapor barrier
Before any plastic goes down, I look for anything that has to be fixed first, like a leak or standing water, because a liner laid over a wet problem just hides it. Our crew then lays the liner across the dirt floor, and since federal guidance calls for plastic at least 6-mil thick covering the whole floor or as close as is reasonably possible, we fit it around the piers and into the corners instead of leaving bare strips at the edges. If there's equipment down there that someone has to reach, we put a tougher liner along the path to it. If your crawl space has a pest treatment, we'll ask you to check with your pest company before we close anything up.
A covered crawl space is a good first step, and it's the right order, because insulation added over a moisture problem doesn't do its job. Once the floor is handled, attic air sealing closes the gaps that let air leak through the top of the house, and retrofit insulation adds what an older house is missing without starting over.
Ground cover with the vents open
This suits a crawl space that's mostly dry and doesn't hold ductwork or equipment you need to reach. The seams don't get sealed, because federal guidance only calls for that in a closed crawl space, which keeps the job smaller.
Closing the whole crawl space
This suits a house with damp problems or ductwork and equipment down there, since the vents get closed off and the liner's seams and the spots where pipes and piers pass through get sealed. It's the bigger job of the two, and we talk through whether yours needs it at the estimate.
Vapor barrier installation in Hampton and the city's permit rules
Hampton's Development Services Center handles city permits, and the city requires a permit for all proposed development in the 100-year floodplain, so a house in the floodplain is the clearest case where this work may need one. Outside that, I don't assume either way, so I check with the city for your address before we start, and when a permit is needed we apply for it as the contractor and set up the inspections. If you'd like to look into it yourself, the city has you register online for permitting and inspections or call 757-727-8311.
Under houses around here we usually find bare dirt, old plastic that's torn or pushed aside, and boxes stored right on the ground. We see the same kinds of crawl spaces on jobs in Newport News and Poquoson, and we plan the liner around whatever's down there.
Why Hampton homeowners call us about their crawl space
I write every estimate myself
I'm the one who looks under your house and writes up the estimate, and our lead installer runs the crew that does the work while I check in during the job. That way the person who told you what you'd get is still paying attention while it gets done.
Doing this work since 2017
I sold insulation jobs for another company before learning the trade beside the installers, and we've been on our own since 2017. I've seen the hard sell from the other side, so I'd rather lay your options out side by side and let you pick.
Licensed and fully insured
We're licensed and fully insured. Virginia's Board for Contractors licenses contractors in three classes, mostly by job size, with Class C covering single projects over $1,000 and under $30,000, and a licensed contractor also has to meet the licensing rules of each city where it works.
We're based in Hampton and work in the cities around it, so if you'd like me to take a look under your house, send us a request or call (757) 367-8752.
Request a quoteGet a written estimate for your crawl space vapor barrier
We respond within one business day to set up a time. I come out, look at your crawl space with you and go over what I find, then write up a free estimate you can look over with no obligation.
What happens after you call about a vapor barrier
Call or send a request
Call (757) 367-8752 or use the form, and we'll get back to you to set up a visit. Hours run late on weekdays and weekends, so you can reach us after work.
Look at the crawl space together
I come out, look at the crawl space with you and go over what I find, including anything that should be fixed before plastic goes down. Then I write up each option with its price, so you know what's in the number before you decide anything.
Fix first, then permits
When you're ready, we take care of anything that has to be fixed first and handle the permit if the city calls for one. Nothing goes down over a problem we already know about.
Install and walk through
Our lead installer's crew lays and fits the liner, and I check in while the job is going on. At the end the crew walks you through the finished crawl space, including the walking path and any sealed seams.
Frequently asked questions
What does a vapor barrier do for my crawl space?
It covers the dirt floor so ground vapor and soil gases can't come straight up into the crawl space, which is what bare dirt lets happen. Torn or patchy plastic acts a lot like bare dirt wherever the gaps are, so the cover only helps if it actually covers.
Should I close my crawl space or keep the vents open?
If moisture is the reason you're calling, closing it is usually the better choice, because national guidance finds a properly closed crawl space can control moisture much better than a regular vented one in temperate, humid climates. A ground cover alone costs less and still beats bare dirt, and I'll tell you at the estimate which one your crawl space actually needs.
How much does vapor barrier installation cost near Hampton, VA?
Closing up a 1,500 sq ft crawl space with a barrier and a dehumidifier usually costs about $5,000 to $10,000 per job in Norfolk and Virginia Beach, and that's the going rate for the full job, not our price. A ground cover alone in a vented crawl space is a smaller job than that, and your own figure comes from the written estimate after I've seen the space.
Who handles the permit for a vapor barrier in Hampton?
We do, whenever the city requires one for your job, so you don't have to file anything yourself. Homes in the 100-year floodplain are the main case to watch, and I check your address with the city before we start.
What is the best way to protect a crawl space vapor barrier where people walk?
Use a thicker, reinforced liner along the walking path, because national guidance says thin 6-mil plastic without reinforcement needs protection where people walk to service equipment, and the reinforced sheet holds up better. If nobody goes down there, the thinner sheet can make sense for the rest of the floor and keeps the cost down.
How do I get my crawl space ready for a vapor barrier?
Clear out everything stored down there, along with any loose debris, so the liner can reach the whole floor. If something's too heavy or awkward to move, tell me at the estimate and we'll plan around it.
Other work that goes with a vapor barrier
Attic air sealing
Closes the gaps around can lights, pipes and the attic hatch so your attic insulation isn't fighting a draft.
Retrofit insulation
Adds insulation to the house you already live in, best done once the crawl space below it is covered.
Hampton, VA
Have us look under your house
If you have the rough size of your crawl space, whether it has vents and any pest warranty handy, we can set up the visit on the first call.