Crawl space vapor barrier in Wildomar CA - a dry crawl space, covered wall to wall
Musty smell coming up through the floor or damp dirt under the house? We cover the crawl space floor so ground moisture stays down there.
- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
What does a crawl space vapor barrier do for a Wildomar house?
A crawl space vapor barrier in Wildomar, CA is a plastic sheet we lay across the dirt floor under your house, so ground moisture and soil gases stay down there instead of getting pulled up through gaps around the subfloor into your rooms.
Most people call because the house smells musty, the floors feel damp or the old plastic down there is torn up, and the cover alone isn't always the whole answer. The price mostly turns on how big the crawl space is, how hard it is to move around in, which liner it needs and whether water from the yard has to be dealt with first. The schedule turns on clearing out what's stored under the house, any repairs that have to come first and the permit step, and you'll get the figure for your own house once I've been under it.
How can you tell your crawl space needs a vapor barrier?
A musty smell indoors
Air from the crawl space gets pulled up through gaps in the floor, so damp dirt under the house often shows up as a stale smell in the rooms above. The longer it goes, the longer the wood under your floor sits in that damp air.
Wet dirt after watering
Dark, wet soil or standing water along the foundation wall after the sprinklers run usually means water is coming in from the yard. Plastic alone won't stop that, and waiting lets the framing near the wall stay wet.
Torn or bunched-up plastic
Old sheeting that's shredded along the path to the furnace or pulled back from the walls leaves bare dirt putting moisture into the air again. A few torn spots are cheaper to deal with now than a whole crawl space of damp wood later.
How we put in a crawl space vapor barrier
I go under the house first and look at the dirt, the wood, the vents and any furnace, ducts or pipes down there, then I walk the outside, because a ground cover only does its job if water isn't coming in from the yard through bad grading, missing drainage or sprinklers aimed at the foundation. We ask you to clear out anything you keep under the house so the plastic can run end to end, then our crew clears the debris, lays the sheet across the whole floor, overlaps the seams and carries it up the walls and around the piers so no dirt is left bare.
A few jobs sit right next to this one. If damp shows up beyond the crawl space, our vapor barrier installation work handles moisture in the rest of the house, and attic air sealing closes the gaps up top that keep drawing air up from below. Sealing the crawl space vents is a separate step, and we won't just close them up, because sealing vents without other changes can raise the moisture down there. If a gas furnace or water heater under the house draws its air from the crawl space, closing it off could be deadly, so that equipment gets checked first.
Standard 6-mil plastic
This suits a crawl space nobody goes into except to take a look, because plain unreinforced 6-mil sheeting, the thinner standard plastic, holds up when it's left alone. Anywhere people crawl, it needs protecting or it tears and leaves dirt showing.
Thicker reinforced liner
This suits a house with a furnace, ducts or plumbing under the floor that someone has to service, because thicker reinforced plastic stands up to knees and tools much better. It costs more, and it's what we use wherever people go under the house.
Get a free crawl space vapor barrier estimate in Wildomar
Send the form and we'll get back to you within one business day to set up a visit. I come out and look at the crawl space myself, the estimate is free, and there's no obligation to go ahead.
- Based in
- Wildomar, CA 92595
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 8 AM–9 PM
What happens after you call about your crawl space?
Here's how a crawl space job runs from your first call to the final walk-through, and who you'll be dealing with at each step.
Call or send the form
You call (951) 417-1017 or send the form, and we get back to you to set up a visit. It helps to tell us whether your crawl space has vents and what equipment sits down there.
I go under the house
I come out myself, look at the crawl space and the yard around it, and before I leave I tell you what I'd do, what has to be fixed first and what I'd skip. That's where you hear what drives the price on your house, so you know what you're paying for before you decide.
We handle permits and install
Once you say go, we check the permit step with the building office for your address, file it if one is needed and keep you posted. Wildomar allows construction Monday through Saturday from 6:30 am to 7:00 pm, with none on Sundays or city holidays, so we book your install inside those hours.
Walk the finished crawl space
When the cover is down, we walk the crawl space with you so you can see the plastic reaches every wall and pier. If something outside still needs fixing, like a sprinkler head soaking the foundation, I'll tell you plainly.
Why Wildomar homeowners call us for crawl space work
The owner plans every job
I come out myself, go under the house and plan the work, and the small crew I work alongside does the install. The person who saw your crawl space is the same one down there on install day.
In business since 2013
I grew up following my dad through attics and crawl spaces, and I've run this business since 2013. That's taught me to do things in the right order, because plastic laid over a water problem just hides it.
Licensed and insured in California
We're licensed and insured. In California, the Contractors State License Board licenses and regulates the construction industry, and that's the licence that counts for work on your house.
On a crawl space, the water gets stopped before the dirt gets covered, so tell us about yours and I'll come take a look.
Vapor barriers and permits for Wildomar crawl spaces
In Wildomar, the city's Building & Safety Department issues building, electrical, plumbing, mechanical and related permits, and that list doesn't name crawl space ground covers, so whether your job needs one isn't settled up front. We check the permit step with the building office for your address, whether that's the city or the county, and if one is needed we file it and keep you posted. The same city page rates termites here as Very Heavy, so if anything on the wood worries me while I'm under your house, I'll tell you before any plastic goes down.
Often the damp we find traces back to lawns and planters watered right up against the foundation, and we run into the same thing on jobs in Murrieta and Lake Elsinore. We point out which sprinkler heads to move before the cover goes in.
Crawl space vapor barrier questions in Wildomar
Does a vented crawl space still need a vapor barrier?
Yes, the plastic cover belongs on the floor whether the crawl space has vents or not. So a Wildomar house with open vents still gets one, and the vents only change the steps around it.
What causes a damp crawl space in Wildomar?
In a vented crawl space, most of the water usually comes from outside, through grading that slopes toward the house, no drainage along the foundation or sprinklers set wrong. That's why the yard is part of the plan, or the plastic just ends up with water sitting on top of it.
How much does a crawl space vapor barrier cost in Wildomar?
Across the US, installing a vapor barrier in a crawl space usually costs about $1,200 to $4,000 per job. That's a national range, not our quote, and where your house lands depends on what I find once I'm under it.
How much can a contractor ask for up front in California?
On a California home improvement job, the down payment can't be more than $1,000 or 10 percent of the total contract price, whichever is less. Every other payment has to be listed in the contract and tied to work done or materials delivered, so check any contract you sign against that.
Should I test for radon before putting in a crawl space vapor barrier?
Yes, if you never have, because the EPA says all homes should be tested for radon no matter what zone they're in. Knowing where you stand before we cover the floor tells you whether other work belongs in the plan.
How long does a crawl space vapor barrier take to install?
The install is usually the short part, and the prep around it is what stretches the schedule. Clearing out the space, fixing water coming in from the yard and any permit step come first, and I'll tell you at the visit how much of that your house needs.
Related services for a drier, tighter house
Vapor barrier installation
If damp is showing up somewhere other than the crawl space, like a wall or a new addition, this covers moisture control in the rest of the house.
Attic air sealing
Closing the gaps around pipes, can lights and the attic hatch stops house air leaking out the top, which cuts how much air gets drawn up from below.
Service areas for crawl space work
Premium Wildomar Spray Foam Insulation is based in Wildomar, California, and we do crawl space work in the cities around it. The 12 cities below have their own pages, including Temecula and Menifee, and we work in other cities nearby too.
Book a look under your house
One visit tells you whether plastic alone will do it or the yard needs work first, so call (951) 417-1017 or send the form.