Heavy-gauge vapor barriers, sealed foundation vents, and a dedicated sump discharge line so your Chapel Hill, NC crawl space stops feeding moisture into the floor joists above it.

A rushed encapsulation job with unsealed seams or unwrapped piers looks fine on day one and fails within a season. We treat seam sealing and pier wrapping as core parts of the install, not optional add-ons that get skipped to save time.
Every crew member is trained specifically on liner installation, seam sealing, and vent encapsulation, not general basement work.
Our technicians carry encapsulation materials on the truck for most standard-size crawl spaces, cutting down on return visits.
No hourly billing — the number we quote is the number on the final invoice.
We measure relative humidity before and after installation to confirm the space is actually staying below the threshold where mold and wood rot take hold.

We scope every Crawl Space Encapsulation job in person before quoting it, since two properties with the same symptom rarely need the same fix.
Before any liner goes down, we pump out existing standing water and remove debris left behind by prior drainage failures.
We install heavy-duty liner rated for crawl space conditions, sealed at every seam and pier to stop ground moisture from reaching the floor joists.
Open foundation vents pull in humid outside air, which is often the real driver of Chapel Hill, NC crawl space condensation — we seal them as part of encapsulation.
We route discharge lines well away from the foundation so pumped water doesn't just cycle back in.
Exposed ductwork inside an unencapsulated crawl space collects condensation, which we address by insulating and sealing ducts while the space is open.

We ask about standing water, musty odor, and vent condition to gauge scope before scheduling the inspection.
We take humidity and moisture readings to establish a baseline before recommending a system.
You'll see square footage, liner grade, vent sealing, and dehumidifier specs broken out in the written estimate.
We re-test humidity after installation to confirm the space is holding at a healthy level before we consider the job done.

"Our crawl space had standing water and a mold smell we couldn't get rid of no matter what we tried. Full encapsulation with a dehumidifier fixed it in one visit."
— Chapel Hill Homeowner
"Wood floors upstairs were starting to cup from crawl space humidity. Encapsulation plus a dehumidifier stopped it before we had to replace flooring."
— Chapel Hill Customer
"Access to our crawl space is tight and awkward, but the crew didn't seem bothered by it at all."
— Chapel Hill Homeowner
"Musty smell in our upstairs hallway is completely gone now that the crawl space is sealed."
— Chapel Hill Customer
We can scope either option depending on your budget and how severe the existing moisture problem is.
We'll recommend a thickness based on how the space is actually used, not just a default.
In most Chapel Hill, NC climates, yes — open vents pull in humid air that undoes a lot of the benefit of the liner alone.
Often yes, if the crawl space is the source — sealing and dehumidifying typically resolves musty odors within a few days of installation.
Yes — we extract existing water first, then proceed with liner and vent sealing once the space is dry enough to work safely.
Spaces with extensive prior water damage or debris may take longer — we'll give you a realistic estimate up front.
We encapsulate crawl spaces throughout Chapel Hill and the surrounding Chapel Hill, NC service area, including the zip codes listed below.



Zip codes we serve in Chapel Hill, NC: 27599 27514 27516 27517 27515
Call now for a free inspection and a flat-rate quote before anything gets worse.
Call +1-866-476-1348© SGP Waterproofing. All rights reserved.