Crawl space vapor barrier in Castle Rock CO - a dry crawl space covered wall to wall
Damp dirt, a musty smell or puddles under the house? We trace the water first, then cover all the ground we can reach.
Do I need a vapor barrier in my crawl space?
A crawl space vapor barrier in Castle Rock is a plastic ground cover laid over the dirt under your house. When it's installed well, it helps limit the moisture and soil gases, radon among them, that rise out of the ground and into the space.
Most people call after they notice a musty smell, damp dirt or puddles down there, or an old torn sheet that only covers half the ground. The price turns on the size of the space, how much has to be cleared out, whether there's water to chase down, and whether you want a basic ground cover or a fully closed crawl space with a heavier sheet. The schedule mostly depends on that water, because a leak gets fixed before any plastic goes in, and the estimate gives you your own figure. If you're also thinking about crawl space insulation, I'll look at both on the same visit.
How we install a crawl space vapor barrier
We start by clearing out stored items and debris, because the plastic can't cover ground it can't reach. If there's standing water, we trace it to its source before the sheet goes down, since plastic laid over a wet floor just hides the problem. Then we run the plastic over all the ground we can reach and up the walls and piers. That's also how the Department of Energy's guidance describes a finished barrier, so you can look for yourself and see that it's complete.
A crawl space is only one place a house picks up moisture, so when damp walls or a basement are part of the picture, our vapor barrier installation work covers those areas too. Air leaking out the top of a house can pull air up from below, which is why attic air sealing is often worth doing around the same time.
Why Castle Rock homeowners call Reliable Castle Rock Insulation Services for crawl space vapor barriers
I write every estimate myself
I come out, crawl the space with a flashlight and write the estimate myself, and our own installers do the work. You hear what I'm seeing from the person who's pricing the job, and I'll explain it as many times as you need.
Doing this work since 2017
I started this business in Castle Rock in 2017 after my first years with a big commercial insulation company, so we've been at it for 9 years. That background is why we work in a set order, because plastic laid over a leak only hides it.
Licensed and insured on every job
We're licensed and insured. Crawl spaces are tight, awkward places to work, and you shouldn't have to take on that risk by letting a crew under your house.
Permits checked for your address
Before we start, I check which city or county office covers your address, and inside town limits that's the Town of Castle Rock, which issues building permits for work that needs one. When your job needs a permit, we apply for it and set up the inspections.
What matters most under a house is the order of the work, water first and plastic second. When you're ready, call (720) 408-0974 or send us a request and I'll come take a look.
Get a crawl space vapor barrier estimate
We'll reply within one business day to set up a time, and I'll come out to look at your crawl space and write the estimate myself. It's free, done on site and comes with no obligation. If you've seen standing water down there, or there's a furnace or water heater in the space, mention it in the form.
Crawl space vapor barriers up close
Questions before you book a vapor barrier
What does a crawl space vapor barrier cost near Castle Rock?
Crawl space encapsulation in the Denver area usually costs about $2 to $11 per square foot. Where your job lands depends on the square footage, how much has to come out first, whether there's water to fix and whether you're closing the space up with a heavier sheet. I'll measure and look it over before giving you a number.
What causes standing water in a crawl space, and does it need fixing before a vapor barrier?
Standing water usually comes from a leaking pipe or groundwater getting in, and yes, it has to be removed and the source repaired first. Otherwise the moisture just climbs back up after the plastic is in. It's best to plan for that repair as part of the job, and I'll show you what I find.
Should I seal my crawl space vents when I put in a vapor barrier?
Not by themselves, because sealing the vents alone can raise moisture, and it can turn deadly if fuel-burning equipment that vents naturally sits in the crawl space. Closing up a vented crawl space has to be planned as one job with that equipment included. One federal guide recommends covering the whole floor with a thicker sheet or a cross-laminated, puncture-resistant one when you go that route.
Will a crawl space vapor barrier help with radon?
It can help limit radon and other soil gases when it's installed well, but it isn't a radon system on its own. A radon test tells you whether your home needs a mitigation system, and Colorado residents can order a free test kit through Douglas County, limit one per household. If you do need one, a fan can lower the pressure under a sealed membrane so soil vapors don't move up into the house.
Who is allowed to do crawl space work in Castle Rock?
Contractors doing building work covered by the Town's code have to apply, pay a fee and register with the Town before they start, and homeowners may act as their own contractor on residential additions, alterations or repairs. Either way, the Town charges building use tax on the cost of materials, with or without a permit.
How do I keep a crawl space vapor barrier from getting damaged?
Stay off it as much as you can and don't store things on it, because walking on a sealed membrane or setting boxes on it can damage it and cut down how well it works. A label at the crawl space access helps remind anyone heading down there.
Other work that often goes with it
- Vapor barrier installation
For moisture showing up on basement walls or other parts of the house beyond the crawl space floor.
- Attic air sealing
Closes the gaps at the top of the house so warm air stops escaping and drawing air up from below.