Vapor barrier installation in Norman OK - a drier crawl space under your floor
Musty smell, damp floors or bare dirt under the house? We cover the ground right, after fixing whatever has to come first.
- Service
- Vapor barrier installation
- Call
- (405) 561-8031
How can you tell the ground under your house needs covering?
A musty smell indoors
If the house smells like a damp basement, especially on humid days, that smell is usually coming up from the dirt under your floor. Left alone, the damp works into the floor framing and any insulation down there, and that's a bigger repair than a new ground cover.
Torn or missing ground plastic
A lot of crawl spaces I go into have thin old plastic that's been ripped by whoever last ran a pipe and is bunched up in the corners. Bare patches let ground moisture straight up into the space, so the longer they sit, the more the wood above them soaks up.
Puddles after a hard rain
Water sitting on the crawl space floor usually means a pipe is leaking or the ground is draining toward your house, and a sheet laid over it just hides the problem. Every rain that collects there keeps the joists damp, so it's worth a look before the next wet spell.
Does my crawl space need a vapor barrier?
Vapor barrier installation in Norman, OK means covering the dirt floor of your crawl space with a heavy sheet, so less ground moisture and fewer soil gases like radon rise into the space under your house. Done well, it keeps the area beneath your floors drier and the air coming up from it cleaner.
Most people call me because of a smell, a cold floor or a note from a home inspector, and the first thing I'll ask is what you've noticed. The price moves with the size of the crawl space, how much old plastic and rubble has to come out, whether a water problem has to be fixed first, and whether a plain ground cover will do or the whole space should be sealed. The schedule mostly turns on that water repair and on getting stored things out of the way. When I come out, I walk the crawl space, show you what I find and write it up so you can compare it with anyone else's estimate. We're based in Norman and work in many cities around it across the Oklahoma City area.
Details to note before an estimate
- Rough size of the crawl space
- Any standing water or damp spots
- Age of the house
- Condition of any old plastic
How we handle vapor barrier installation
I start under the floor, looking at the dirt, the vents, the plumbing and where water goes when it rains, and then I tell you whether a simple ground cover is enough or sealing the space makes more sense. Anything wetting the floor gets fixed first, because a new sheet over a wet floor is like a rug over a spill. Then our crew pulls out the old plastic and clears the sharp rocks, broken block and other rubble, so the new sheet doesn't get punctured the first time someone crawls across it. We lay the barrier, and I go back under to check it before we call the job done.
A covered floor handles what comes up from the ground, but warm air also leaks out the top of the house, so it's worth asking about attic air sealing to close the gaps around light fixtures, pipes and the hatch. If an older house came up short on insulation when it was built, retrofit insulation adds what's missing to the walls and attic you already have.
Work that often goes with it
Attic air sealing
Air escaping through the attic pulls air up from below, so closing those leaks overhead helps the space under your floor too.
Retrofit insulation
Older houses often have thin or missing insulation, and adding it now is how you stop paying to heat and cool the outdoors.
What happens after you call about your crawl space?
Call or send a message
Call (405) 561-8031 or use the form, and tell us what you've noticed, like a smell, a soft spot in the floor or water after rain. We get back to you to set a time for me to come out.
I look under the house
I come out myself, go through the crawl space and take photos, then show you what I found before I suggest any work. Your estimate spells out what needs fixing first and whether a ground cover or a sealed space fits your house.
Our crew does the work
Please clear out anything you keep down there before we arrive, because the crew needs a bare floor to work on. Our insured crew fixes whatever has to come first, clears the rubble and puts the barrier down.
I check it before we're done
Before we call it finished, I go back under the house and check the work against what we agreed on. Then I walk you through what we did, so you know what's down there.
Questions about vapor barrier installation
Do older houses in Norman need a crawl space vapor barrier?
If there's bare dirt or torn plastic under an older house, it's usually worth putting a good one down. A crawl space without a proper cover over the soil can wear on a home's comfort, energy use, durability and indoor air, often before you see anything wrong. That's why I'd rather take a look even when nothing seems off.
How much does crawl space encapsulation cost in Norman, OK?
Sealing up a crawl space of about 1,500 square feet with a vapor barrier and a dehumidifier usually runs about $4,300 to $8,000 in Norman. That's what the work typically costs around here, not a quote from us, and a plain ground cover in a vented space is a smaller job, while a bigger space, more rubble or a water repair pushes it the other way. You'll see your own number in the written estimate, and on the work itself, it's your satisfaction, guaranteed.
Does standing water in a crawl space have to be fixed before a vapor barrier goes in?
Yes, standing water has to be gone and its source found and repaired before the barrier goes down. The source is typically a leaking pipe or groundwater. Floods can happen in Oklahoma any time of year, but the big ones tend to come in spring and fall, so tell me if you see water down there after a wet season.
What is the best way to install a vapor barrier in a crawl space?
For a sealed crawl space, a U.S. Department of Energy guide calls for a poly sheet of a set minimum thickness, or a puncture-resistant cross-laminated sheet, over the entire floor. The same guidance seals the seams and pipe openings only in a sealed space, and lays the sheet so the floor still drains the way it did. When you compare quotes, ask whether the sheet covers the whole floor and how it stands up to punctures.
How do I know if my crawl space should stay vented or be sealed?
It comes down to the conditions under your house, and some vented crawl spaces can be converted to sealed ones when those conditions call for it. Before anyone closes the vents, they should make sure your furnace or water heater gets the air it needs some other way than through those openings.
Do I need a permit for a vapor barrier in Norman, OK?
The city's permit list doesn't name vapor barrier work, so it doesn't settle the question, and we check with the city's office before we start. If you'd like to look yourself, Norman's Development Services page has the residential building permit applications, contractor licensing information and fee schedules for trade permits. We're licensed, and when a job calls for a permit, we pull it or walk you through getting one.
Get a written estimate for your crawl space floor
Send the form and we reply within one business day to set a time for me to come out. The visit and the written estimate are free, with photos of what I find, and there's no pressure to book.
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Get the space under your floor checked
Damp under a house rarely dries out on its own, so call (405) 561-8031 or use the form and I'll come see what's going on.