You stop wondering why your floors are cold in winter or why your energy bill keeps climbing. A properly encapsulated crawl space cuts energy costs by 15-20% annually—that’s $300 to $600 back in your pocket every year for most homes in Lewisville.
The musty smell disappears. The air gets cleaner because you’re not pulling humidity, mold spores, and allergens up through your floorboards anymore. Around 50% of the air you breathe on your main floor comes from below, so what’s happening down there matters more than most people realize.
Your home becomes easier to sell when the time comes. Buyers in Lewisville, NC know what humidity does to a house, and an encapsulated crawl space with a transferable warranty can add roughly 10% to your home’s value. That’s real equity you can bank on.
We’ve spent over 30 years fixing indoor air quality problems in the Greensboro area, including right here in Lewisville. We’re not new to North Carolina’s humidity issues or what happens when moisture gets trapped under a home built in the late ’80s or early ’90s—which describes most of the housing stock around here.
We handle crawl space encapsulation and HVAC duct cleaning as connected services because they are. Sealing your crawl space without addressing your ductwork is like fixing half the problem. We use commercial-grade vapor barriers, professional dehumidifiers, and a process that’s backed by a lifetime warranty.
You’re not getting a crew that learned this last year. You’re getting people who’ve seen every version of crawl space damage this climate can create.
First, we inspect your crawl space to assess moisture levels, existing damage, and what prep work is needed. If there’s standing water, mold, or rotted insulation, that gets handled before we seal anything. You can’t encapsulate over a mess and expect it to hold.
Next comes vapor barrier installation. We use heavy-duty liners—not the thin stuff that rips when you look at it—and seal them across your crawl space floor and up the foundation walls. Every seam gets taped. Every pier gets wrapped. This creates a complete moisture barrier between the ground and your home.
Then we address ventilation and humidity control. In most cases, that means installing a crawl space dehumidifier designed to run in tight, sealed environments. We also seal off old foundation vents because leaving them open in an encapsulated space defeats the entire purpose.
Finally, we inspect the work, test humidity levels, and walk you through what we did. You’ll know how to monitor it, what to expect, and how the warranty works if anything ever needs attention.
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Crawl space encapsulation in Lewisville, NC isn’t a one-size-fits-all job. Homes here deal with clay soil, high water tables, and humidity that regularly pushes past 70% in summer. Your encapsulation needs to account for that.
We include full vapor barrier installation with sealed seams and proper overlap. We seal foundation vents and install insulation where it makes sense for your specific setup. If your crawl space needs a dehumidifier—and most do in this climate—we install units rated for the square footage and moisture load you’re dealing with.
You also get a thorough cleaning before encapsulation starts. That means removing old insulation, debris, and anything that shouldn’t be there. Some companies skip this step to save time. We don’t, because sealing in contaminated air or materials just locks the problem inside.
The result is a crawl space that stays dry year-round, doesn’t smell, and doesn’t drag down your HVAC system. It’s the kind of work that pays for itself in energy savings within 7 to 10 years, and it makes your home healthier the day it’s done.
Most crawl space encapsulation projects in the Lewisville area run between $3,500 and $15,000, depending on the size of your crawl space, the condition it’s in, and what needs to be done before we can seal it. A 1,200-square-foot crawl space in decent shape will cost less than a 2,000-square-foot space with standing water and mold remediation needs.
The price includes vapor barrier installation, sealing foundation vents, cleaning out old insulation or debris, and installing a dehumidifier if your space requires one. We don’t give ballpark quotes over the phone because every crawl space is different. What we do is come out, assess the space, and give you a clear number based on what your home actually needs.
Most homeowners recover the cost within 7 to 10 years through lower energy bills and avoided repair costs. When you factor in the potential 10% increase in home value, the math usually works in your favor.
Yes, but the savings depend on how bad your crawl space situation is right now. If you’ve got open vents, no vapor barrier, and insulation that’s falling down or soaked through, you’re probably losing 15-20% of your conditioned air. Sealing that up can cut your heating and cooling costs by the same percentage.
For a typical 2,000-square-foot home in Lewisville, that translates to around $300 to $600 per year in savings. Your HVAC system won’t have to work as hard to maintain temperature because you’re not constantly fighting outside air and ground moisture seeping in from below.
The other benefit is comfort. Floors stay warmer in winter. Rooms feel less humid in summer. Your system cycles less, which means it lasts longer and needs fewer repairs. The energy savings are real, but the overall improvement in how your home feels is what most people notice first.
In North Carolina, yes. Encapsulation stops outside air and ground moisture from getting in, but it doesn’t eliminate humidity that’s already present or that enters through small gaps. A sealed crawl space without a dehumidifier can still hit 60-70% humidity during our summer months, which is high enough for mold growth and wood damage.
A crawl space dehumidifier is designed to run in a confined, sealed environment. It’s not the same as a basement dehumidifier you’d buy at a hardware store. These units are built to handle higher moisture loads and operate efficiently in tight spaces with limited airflow.
We size the dehumidifier based on your crawl space square footage and the typical humidity levels in Lewisville. Once it’s installed, it runs automatically and keeps humidity between 40-50%, which is the range where mold can’t grow and wood stays stable. It’s a small upfront cost that protects the larger investment you just made in encapsulation.
Most crawl space encapsulation jobs in Lewisville take 1 to 3 days, depending on the size of the space and what condition it’s in when we start. A straightforward encapsulation on a clean, dry 1,200-square-foot crawl space might be done in a day. A larger space that needs mold remediation, debris removal, or structural drying could take closer to three days.
We don’t rush the work to hit a timeline. Vapor barrier seams need to be sealed correctly. Dehumidifiers need to be installed and tested. Vents need to be properly sealed, not just stuffed with foam. Cutting corners to save a few hours creates problems you’ll pay for later.
You’ll have full access to your home during the work, and we clean up completely when we’re done. Most homeowners are surprised by how little disruption there is. We’re working underneath your house, not tearing through your living room.
You keep dealing with the same problems, and they get worse. Moisture leads to mold, mold leads to health issues and wood rot, and wood rot leads to structural repairs that cost exponentially more than encapsulation ever would. Homes in Lewisville sit on clay soil and deal with above-average rainfall, so moisture problems don’t fix themselves.
Your energy bills stay high because your HVAC system keeps fighting humidity and temperature swings from below. Your indoor air quality stays poor because you’re pulling musty, contaminated air up through your floors. If you ever try to sell, a home inspector will flag the crawl space, and buyers will either walk or demand a price reduction that’s larger than what encapsulation would have cost.
The longer you wait, the more expensive the fix becomes. Encapsulation is a preventive measure that stops damage before it gets out of hand. Once you’re dealing with sagging floors or compromised floor joists, you’re not just paying for encapsulation anymore—you’re paying for structural repairs on top of it.
Yes. Our crawl space encapsulation system is backed by a lifetime warranty, which covers the materials and the installation. If the vapor barrier fails, the seams come apart, or the system doesn’t perform the way it should, we come back and make it right at no cost to you.
The warranty is transferable, which matters if you sell your home. A buyer knowing the crawl space is professionally encapsulated and covered for life adds real value during negotiations. It’s one less thing they have to worry about, and it’s documented proof that the work was done correctly.
We’ve been in business for over 30 years, so when we say lifetime warranty, we’re not a fly-by-night company that might not be around in five years. We’re local, we’re established, and we stand behind the work we do. That’s not something every crawl space contractor in the area can say.
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