Crawl space vapor barrier in Bryan, TX - a dry, sealed space under your house
Damp, musty crawl space or cold floors over it? We clear it out, fix what comes first and seal the ground with a sturdy liner.
Should I put a vapor barrier in my crawl space?
A crawl space vapor barrier is a continuous, sealed ground cover, usually taped plastic sheeting laid over the dirt under your house, and in Bryan, TX it's one of the most direct ways to keep ground moisture out of the crawl space and lower the moisture in your home.
Most people call me because the floors feel cold, the house smells musty, or they looked under there and found damp dirt and sagging insulation. The price turns mostly on the size of the space and on what has to be fixed before the liner goes down, and the schedule turns on those same fixes, since water problems and any gas appliance work come first and a permit adds a city step when the job needs one. I'll put all of it in writing after I've been under your house, and if what you really need is crawl space insulation or old material pulled out first, I'll tell you that too.
What happens after you call about your crawl space?
Call or send the form
You call (979) 393-7011 or send the form, and we set a time for me to come out. It helps to know where the crawl space access is before I get there.
I come look underneath myself
I crawl the space and tell you what I see, including any water getting in, any furnace or water heater down there and anything else that has to be fixed first. Your written estimate spells out that work, which liner goes where and the dehumidifier, so you can see where the money goes and what can wait.
We take care of permits
If the job needs a permit, we apply for it with the city and handle the inspections. If you're not sure whether yours does, I find out before we start.
We install, then walk through
My crew does the work with me on site, with the fixes on the estimate done before the liner goes in. Before we pack up, I go over the finished space with you.
How we put in a crawl space vapor barrier
First we clear the space out, old debris and anything stored down there, so the liner can cover every bit of bare ground. Then we deal with any water coming in and work out any gas appliances under the house, because sealing a space with either problem still there just traps it. The liner goes down and gets sealed at the seams, and where somebody will be crawling to a furnace or ducts, we use a tougher liner so a knee or a toolbox doesn't tear it. We plan a dehumidifier into the job from the start, so the space stays dry after we leave. We're fully licensed and insured, and the work is backed by our satisfaction guarantee.
A crawl space liner is one kind of moisture barrier, and when the moisture problem is in a wall or somewhere else in the house, that's our vapor barrier installation work. Once the floor is sealed, the attic is usually where a house loses the most air next, so attic air sealing closes the gaps around lights, pipes and the hatch up there.
Get a written estimate for your crawl space
Expect a reply within 1 business day, and most of the time it's me calling you back to set up a visit. I look at the crawl space myself and give you a free written estimate on site, with no pressure to book.
Crawl space vapor barrier questions in Bryan
How do I know if my crawl space is ready for a vapor barrier?
Your crawl space is ready when no major water is getting in and no gas or oil furnace or water heater is drawing its air from the space, because those are the cases where a crawl space should stay open. Both can be fixed, the water first and the appliance with the right safety work, and then the space can be closed. I check for both on my first visit.
What is the best vapor barrier liner for a crawl space?
Thicker, reinforced polyethylene holds up better than thin, unreinforced 6-mil plastic, and it's the sturdier choice anywhere a technician will crawl to equipment under your house. Published guidance on closed crawl spaces also says liner on the walls should be held with fasteners as well as sealed, since tape or glue alone may not support it. Ask any installer how they'll hold the wall liner in place.
Do I need a dehumidifier with a crawl space vapor barrier?
Yes, a permanent dehumidifier is highly recommended, because it holds the relative humidity down there, the share of moisture in the air, at 45% to 55%. The liner stops moisture coming up from the ground and the dehumidifier handles the rest, so I put it on the estimate from the start instead of adding it later.
How much does a crawl space vapor barrier cost in Bryan, TX?
There's no honest number until I've been under the house, because the cost comes from what's down there more than from the liner itself. The biggest swings are water work that has to happen first, changes to a furnace or water heater, a reinforced liner along the paths people crawl, and the dehumidifier. Your written estimate lists each one separately.
What causes gaps in hardwood floors after sealing a crawl space?
Drier air causes them, because sealing a crawl space can dry a house enough that hardwood shows gaps and sheetrock joints crack. It works the other way too, and some buckled hardwood floors have laid back down after sealing. If your floors already move with the seasons, tell me when I'm out so you know what to watch for.
Do I need a permit for a crawl space vapor barrier in Bryan?
I check with the city before we start, and when a job needs a permit, we apply through Bryan's online permit portal and handle the inspections. Bryan also requires contractors to register with the city every year before they can apply for permits, so that's a fair thing to ask anyone you're considering. If you'd like to ask the city yourself, the Bryan Development Services Permit Center is at 979-209-5010.
Other work that goes with a sealed crawl space
Vapor barrier installation
If moisture is reaching a wall or another part of the house, a barrier there stops it before it soaks the insulation.
Attic air sealing
Once the bottom of the house is tight, closing the gaps at the top keeps your cooled air from slipping out through the attic.
Book a look under your house
Call (979) 393-7011 or use the form, and have a few notes ready on any water you've seen down there, gas appliances under the house and any pest treatment warranty, since your pest company may want to know whether a closed crawl space affects it.