Mon–Fri: 7 AM–10 PM, Sat–Sun: 8 AM–9 PMoffice@lakehavasucitysprayfoaminsulation.com
Lake Havasu City Spray Foam Insulation
(928) 392-1018Request an estimate

Crawl space vapor barrier in Lake Havasu City AZ - ground covered edge to edge

Bare dirt, old torn plastic or a musty smell under the house? We cover the ground completely and find where the water comes from.

Request an estimate(928) 392-1018
A crawl space has black plastic vapor barrier across the ground, with white insulation around the ceiling, ducts and wooden supports.

Does my Lake Havasu City crawl space need a vapor barrier?

A crawl space vapor barrier is a plastic ground cover our crew lays over the dirt under your house in Lake Havasu City, covering it completely so moisture coming up from the soil is slowed and soil gases have a harder time getting into your rooms.

Most people call after they've opened the crawl space hatch and found bare dirt, an old sheet that's torn or bunched up, or boxes sitting right on the ground. The price mostly moves with the size of the space, how many walls and piers the plastic has to run up, whether you keep the vents open or seal the crawl space, and any grading or drainage work that should come first. The schedule turns on how easy the access is and whether a leak or another trade needs to go before us, and the written estimate after my visit gives you the figure for your own house. If the floors above get cold in winter too, we can talk about crawl space insulation on the same visit.

Choosing us for your crawl space vapor barrier

You can count on us to look at what's causing the damp before we cover it, and to tell you plainly if something else should be fixed first.

  • The owner on your job

    I do the estimates myself and work beside our installers, so whoever looked under your house is on the job.

  • In business since 2023

    I started the business in 2023 after learning the trade under a boss who checked every attic I worked in.

  • Fully licensed and insured

    We carry both on every job, and you're welcome to ask about them when I come out to look.

  • Problems fixed before plastic

    If there's a leak or a drainage problem, I'll tell you to fix it before we lay anything down.

  • Satisfaction guaranteed

    That's our word on every job, and it starts with a call to (928) 392-1018 or the form on this page.

How we lay a crawl space vapor barrier

The right setup depends on whether you keep your vents open, what's running through the crawl space and where the water comes from, so we start with the yard before the plastic.

  • Clearing out and checking the water

    We ask you to move out whatever's stored down there, because the plastic has to cover the ground completely, and we haul out loose debris before it goes down. A ground cover by itself won't keep water from getting under the house, so we look at your yard's grading, the drainage around the foundation and how often the sprinklers run near the walls, and we lay the plastic without blocking the paths water already uses to drain away.

  • Cover with the vents left open

    If you're keeping the vents, our crew usually runs the plastic up the walls and around the piers, the posts holding up your floor, and fastens it there, or stakes it to the ground at the edges. If the house also runs hot upstairs, it pairs well with attic air sealing, which closes the gaps up top so your cooled air stays in the rooms.

  • Cover for a sealed crawl space

    A sealed crawl space takes more than a cover, because the seams and every spot where a pipe or post comes through get sealed with a lasting sealant that suits the plastic, and we only go this way after checking what's installed down there. It's the same careful sheet work we bring to vapor barrier installation in other parts of a home.

What happens after you call about your crawl space?

We plan the work around what's under your house and what's stored there, so you'll know what to clear out and what needs fixing before the crew shows up.

  1. Call or send a message

    Call (928) 392-1018 or fill out the form, and tell us a little about the crawl space and how you get into it.

  2. I look underneath

    I come out, go into the crawl space, check the ground, vents, piers and the yard around it, and talk through what I find with you.

  3. Your written estimate

    You get it in writing, spelling out the prep, any repairs that should happen first, like a leak or drainage fix, and what goes down after.

  4. Work and walk-through

    Once the space is cleared, our crew lays the barrier and cleans up, and then I walk through the finished crawl space with you.

Questions about a step? Call and talk it through.

(928) 392-1018

Crawl space questions we hear

Do I need a crawl space vapor barrier if my vents stay open?

Yes, the ground cover belongs in a crawl space whether it's vented or sealed, so keeping your vents open doesn't take it off the table. The cover deals with the ground itself, and the vents are a separate choice we can talk through while I'm down there.

Can I just seal my crawl space vents in Lake Havasu City?

No, closing off the vent openings by themselves isn't the same as properly sealing a crawl space. It can raise the moisture down there, and if a furnace or water heater that burns fuel and draws air naturally sits in the crawl space, it can turn deadly. If you want a sealed crawl space, we plan the whole change around what's installed under your floor.

How much does a crawl space vapor barrier cost in Arizona?

Full crawl space encapsulation with a vapor barrier and a dehumidifier in Arizona usually costs about $4,800 to $8,900 per home. A ground cover on its own is a smaller job than that, and the size of the space, the number of piers and any repairs first set where yours lands. The free on-site estimate gives you the number for your house.

Should I test my house for radon?

Yes, the EPA advises testing every home, and the test is easy and inexpensive. If it comes back at 4 picocuries per liter or higher, the EPA advises fixing the house, which is worth knowing before you plan crawl space work.

How long does a crawl space vapor barrier take to install?

It depends mostly on the size of the space, how easy it is to get into and how many piers the plastic wraps, so I give you a timeframe once I've been under the house. Most folks stay home while we work, because we're laying plastic sheeting under the floor, not spraying anything.

How do I know if the vapor barrier plastic is good enough?

Federal guidance sets a minimum thickness and a low perm rating for the plastic, and the perm rating measures how much vapor gets through. Ask any contractor whether the sheet they're quoting meets that guidance, and our written estimate names what goes down so you can check.

Crawl space vapor barriers in Lake Havasu City

Lake Havasu City's permit list names jobs like electrical rewires and moved plumbing fixtures and doesn't mention vapor barriers, so it doesn't settle whether your job needs one. We check each job with the city's Building Division, and when a permit is needed we file it with our contractor's license and city business license numbers on the application, because the city won't issue a permit without both. If anyone does permitted work on your house, it's fair to ask for those two numbers up front.

Older federal research found that in dry Western climates like ours, vented and closed crawl spaces both handled humidity and energy use well enough when the ducts ran outside the crawl space. So on jobs around Lake Havasu City and the cities nearby, the bigger questions are usually ducts under the floor and water from the yard, and we weigh both before suggesting you seal anything.

Get your crawl space looked at

Call (928) 392-1018 any day of the week, evenings included, or send the form and I'll set up a time to look under your house.

Request an estimate(928) 392-1018