Crawl space vapor barrier in Lafayette IN - bare dirt covered and sealed tight
Musty smell or damp dirt under the house? We cover it with heavy plastic sealed to the walls and piers, so ground moisture stays down.
Do I need a vapor barrier in my crawl space?
A crawl space vapor barrier is heavy plastic laid over the dirt floor under your house and sealed to the walls and piers, so water and water vapor stay out of the crawl space and soil gases have a harder time getting up into your rooms. We put them in across Lafayette, IN and the cities around it.
Most calls I get for this start with a musty smell, cold floors, or a look under the house that turns up bare dirt or old plastic torn and shoved into a corner. The price moves with how big the crawl space is, how much has to be hauled out first, how many piers and pipes the sheet has to fit around, how heavy a sheet you need, and whether you want just the floor covered or the whole crawl space closed off. The schedule mostly turns on whether water's getting in that has to be fixed first and whether your address needs a permit. When I come out, I walk the crawl space with you and write out what I'd do and why, and if the floors above still feel cold once the dirt is covered, crawl space insulation is usually the next thing we talk about.
How we put in a crawl space vapor barrier
I start by looking for where water's getting in, because if it's coming from grading or drainage, I'll tell you before we lay any plastic, since a cover won't stop that. Then our crew clears out stored items and debris so the sheet can cover the whole floor, knocks down anything sharp that could poke through, and rolls the plastic out with the seams lapped and sealed. We run it up the walls and around each pier and seal it there, because a cover that stops at the edge of the floor leaves moisture a way around it. Where someone has to crawl to the furnace or other equipment, we use a tougher sheet and fasten it to the walls so it holds up to knees and tool bags.
A crawl space cover is one part of keeping moisture out of a house, and we handle the other parts too. If damp is showing up on basement walls or behind finished surfaces, our vapor barrier installation work covers those spots. And since air that comes up from below tends to leak out through the top of the house, attic air sealing, where we close the gaps around lights, pipes and the attic hatch, often goes hand in hand with a new cover in a drafty house.
Floor cover with the vents left open
This suits a crawl space that stays dry once any outside water problem is dealt with, since the plastic does the main work and the vents stay as they are. It's the simplest setup, with the fewest parts to buy and keep up.
Fully sealed crawl space
This suits a crawl space where you'd rather close the vents and treat the space more like part of the house, which often makes sense when ductwork or a furnace lives down there. Guidance for closed crawl spaces calls for plastic sealed across the floor and up the walls, fastened mechanically because tape or adhesive alone may not hold, plus a way to dry the air such as a dehumidifier or conditioned air.
Crawl space vapor barrier permits and jobs in Lafayette
Inside Lafayette city limits, the City Engineer's Office issues all building permits, and the city requires one for any alterations, repairs or changes to an existing building. The city's permit page doesn't say whether laying a crawl space cover falls under that, so I don't guess. Before we schedule, I look up which office covers your address, since that can be the city, the county or another office, and if the job needs a permit, we handle the paperwork and tell you what the office needs from you.
Under a lot of older houses here, we find bare dirt, plastic that's torn or bunched against one wall, boxes stored right on the ground, and often a furnace or ductwork someone has to reach. We run into the same mix on jobs in West Lafayette and Frankfort, so the order stays the same everywhere, clear it out, find the water, then cover it.
Crawl space covers up close
Why call us for vapor barriers
The owner walks your crawl space
I come out to look at the job and write the estimate myself, and once our install crew finishes, I check the work over with you. You deal with the same person from the first look to the last, so what was written down is what gets checked.
Commercial training, own crew since 2017
I spent years spraying foam and blowing fill on warehouses, offices and new buildings at a big commercial outfit before starting this business in 2017. That's where I learned to get the prep right first, so nothing gets covered up that should have been fixed.
Close by, licensed and insured
We're based in Lafayette and work across the cities around it, including West Lafayette, Frankfort and Monticello, and I still answer the phone myself. We're licensed and insured, and the work is backed by our satisfaction guarantee.
Before you reach out, jot down whether you've seen standing water down there, whether the crawl space has vents and what equipment sits in it, then send us a note or call (765) 250-8263.
(765) 250-8263Get a written plan for your crawl space
I'll get back to you within one business day to set a time, then come out, walk the crawl space with you and write out what I'd do and why. The estimate is free, done at your property and comes with no obligation.
Crawl space vapor barrier questions in Lafayette
Does a vented crawl space need a vapor barrier?
Yes, national building guidance says the plastic ground cover should go in whether the crawl space is vented or unvented. Open vents don't keep moisture from coming up out of the dirt, so the cover belongs in the plan either way.
What causes a crawl space to stay wet with plastic already down?
Usually it's water getting in from outside, not vapor from the ground. Guidance says most moisture in vented crawl spaces comes from poor grading, no drainage around the foundation or watering habits that soak the ground near the house. Plastic can't fix that, so the water source gets handled first, and I'll point you to the right trade if it isn't us.
How much does a crawl space vapor barrier cost in Lafayette?
It's priced job by job, because no two crawl spaces have the same size, clearance or amount of junk to clear. A floor cover alone is the lower-cost way to go, while closing the crawl space adds more parts to plan and pay for, since guidance pairs it with a drying system. Your written estimate spells out which one I'd recommend and why.
Can I put down a crawl space vapor barrier myself in Lafayette?
Yes. When a residential job needs a city permit, the City of Lafayette lets homeowners do all the work themselves if they submit a copy of their homeowners insurance, live there or plan to, and use a state licensed plumber for any plumbing. If you hire a general contractor instead, the city may require a $5,000 bond from them.
How long does a residential building permit review take in Lafayette?
Residential reviews may take up to seven days, and that clock only starts once every required document has been submitted. If your job turns out to need a permit, getting the paperwork complete the first time is what keeps the wait short.
How do I get my crawl space ready for a vapor barrier?
Clear out stored items and loose debris so the plastic can cover the whole floor with nothing sitting on it. Work specifications also call for a sign at the crawl space warning against storing hazardous or flammable materials there and noting that any damage to the cover needs repair right away.
Talk through your crawl space, from drainage to plastic
We take calls until 11 PM every day, so you can reach us at (765) 250-8263 once you're home and can look under the house.
