Crawl space vapor barrier in Hollister CA - a ground cover that reaches every corner
Bare dirt under the house, a musty smell or cold floors? We cover the whole crawl space floor and run it up the walls.

I look under your house myself
When you call, I'm the one who crawls in with a flashlight, not a salesperson with a tablet. If plastic isn't the fix your crawl space needs, I'd rather tell you that than sell you a job.
Running our own crew since 2017
I started on insulation crews as a kid and opened this business in 2017. Nine years in, we're still known for finding the gaps and the problems before any new material goes down.
Fully licensed and insured, start with a call
We're fully licensed and insured, which is the first thing to check on anyone you let under your house. When you're ready, call (831) 245-4007 or send the form and tell us whether the crawl space is vented and if you store things there.
Crawl space vapor barriers in Hollister
A crawl space vapor barrier is a plastic sheet laid over the bare dirt under your house. Without a good one, ground vapor and soil gases come right up into the crawl space. We put them in across Hollister and the cities around it.
Before any plastic goes down, it pays to know where the water comes from. In a vented crawl space, most of it gets in from ground that slopes toward the house, missing drainage around the foundation or sprinklers soaking the wall. Plastic over the dirt won't fix any of that, so I look at the yard as well as the crawl space before I tell you what the job is.
Price turns on how big the crawl space is, how much has to come out before the cover goes down and how thick a sheet you pick. Thin plastic costs less and wears out sooner, while a heavy reinforced sheet lasts far longer for more money, so that's the main call you'll make. The schedule turns on how tight the access is and whether a water problem has to be fixed first. Your estimate shows what comes first.
Crawl space covers and the work around them
Covering the floor, walls and piers
We clear the floor first, then lay the sheet over all of it and run it up the foundation walls and the piers, because the edges are where a ground cover usually fails. Federal guidance calls for covering the whole floor, or as close as you reasonably can, and treats 6 mil as the thinnest plastic that counts. The same guidance says the cover shouldn't block the way water already drains under the house, which is a fair thing to ask anyone who bids the job.
A tougher sheet if you use it
Thin plastic can do for a crawl space nobody visits, but boxes, knees and a plumber dragging a toolbag will tear it. If you store things down there or crawl in often, we'll talk about a tougher sheet before we price it. The national work standard for this also calls for fastening the cover down with durable fasteners or weight where people go in for storage or upkeep, or where the ground slopes, so it stays put.
Fixing the rest of the house too
A crawl space cover is one piece of keeping a house dry and comfortable. If you need a moisture barrier somewhere other than the crawl space floor, that's our vapor barrier installation work. If the house still feels drafty after the floor is covered, the leaks are often up top around can lights, pipes and the hatch, and attic air sealing closes those gaps before insulation goes over them. I'd rather point you at the fix that matters than sell you more plastic.
Get a free on-site crawl space estimate
Send the form and we'll reply within one business day to set a time for me to look under your house. The estimate is free, done on site and comes with no obligation.
(831) 245-4007How a crawl space job goes
I come out and look
After you call or send the form, we get back to you and I come out to look at the crawl space myself. Have a rough idea of what's stored down there and how often anyone goes in, since that helps decide the sheet.
Written estimate and permit check
You get a written estimate listing what needs fixing first and what we'd do, so you can see whether a water problem should come before the plastic. If the job needs a permit, we sort it out with the right office before we start.
Crew installs, I check it
Our crew does the install, then I crawl in and check the edges, seams and piers before we call it done. Then we walk through it with you, and you're welcome to look for yourself if you don't mind the spiders.
Crawl space vapor barrier questions
Does a vented crawl space in Hollister still need a vapor barrier?
Yes, the floor should be covered whether the crawl space is vented or closed. Closing the vents is a separate decision, one we can talk through at the estimate. If you do close it up, one federal guide suggests checking with your pest control company first so their treatment and any warranty stay unaffected.
How long does a crawl space vapor barrier last?
By one cost guide's estimate, a 6-mil contractor-grade sheet lasts about 3 to 5 years and a 20-mil reinforced barrier 25 years or more. The thicker one costs more for materials, so you're weighing the price now against how soon you want someone back under the house. I'll tell you which I'd pick for yours.
How do I get my crawl space ready for a vapor barrier?
Move whatever you've stored down there so the cover can reach the whole floor, and tell us about anything that can't come out. Our crew clears the debris and leftover junk as part of the job. It also helps if the access hatch is easy to reach, so we're not unloading your garage to get in.
What does a California home improvement contract have to include?
State law requires notices and disclosures that protect you, and any change must be in writing, easy to read and state your right to cancel. The state licensing board caps the down payment at $1,000 or 10 percent of the price, whichever is less, and later payments must be listed and match work done or materials delivered.
