Crawl space encapsulation that seals the floor, walls and vents with a heavy liner and controls humidity, so the air under your house stays dry and clean.
A crawl space is a big, dark room under your house that connects to every floor above it. In Middle Tennessee's humid summers, warm air can enter a vented crawl space, cool on the dirt and wood and leave moisture behind. Over time that moisture feeds mold, rot, musty smells and pests. Encapsulation turns the space into a sealed, controlled area, which is why many Nashville homeowners ask about it after a damp inspection report.
We begin with a full look at the crawl space, the grade outside, the vents, the pipes and the framing. We clear debris, correct drainage problems and lay a heavy polyethylene liner across the floor and up the walls, taping seams and sealing around piers and penetrations. We close or seal the vents when appropriate, insulate walls where it makes sense and add a dehumidifier or conditioned air supply sized for the space. You see photos of each stage. We also leave access points clear for service and explain how to check the space each season.
Floor, walls and vents are closed off from damp outside air.
Standing water and leaks are dealt with first so the liner is not laid over a problem.
A dehumidifier or conditioned air keeps the space in a healthy range.
Clear access, a monitor and a care guide help you check the space each season.
Drag the handle to compare.
BeforeAfterWe look at framing, wiring, plumbing, grade, vents and signs of moisture.
A thick liner covers the floor and runs up the walls with taped seams.
Vents and penetrations are sealed so humid outside air stays out.
A dehumidifier or conditioned air keeps the space in range.
Standing water is dealt with before any liner goes down.
You see each stage before the liner is covered.
Every topic has its own page with what to expect and how we approach it.
Comparison guideEncapsulation vs VentsHow a sealed, controlled crawl space differs from a vented one in moisture, air movement, insulation and upkeep.Learn more 
ResourceStegoA maker of vapor barriers and wraps for slabs, crawl spaces and below-grade walls.Learn more 
Comparison guideDehumidifier SizingHow room size, dampness and sealing decide the dehumidifier you need, and how drains, monitors and airflow help.Learn more Enter floor area, lift, pipe run, ceiling height and dampness to see a planning pump flow or dehumidifier capacity for a basement or crawl space.
You tell us what you have seen, where and when, and we set a visit that fits your day.
We walk the outside and inside with a moisture meter, take photos, measure slopes and call for utility marking.
You review the cause, the options and a plain written scope with every line and the schedule before anything is ordered.
We handle permits, protect your property and prepare the work area, from the floor edge to the trench.
We install drains, pumps, liners or repairs, restore floors and lawns and test every system with water.
We walk the job with you, share a care guide and schedule a first checkup.
Many, but not all. Standing water, very low clearance or a failing structure may need other work first.
Usually. A sealed space still needs humidity control.
Closing vents is part of most encapsulations, subject to local code and the site.
Often yes, because the damp, musty air comes from the crawl space.
Many projects take a few days, depending on size, condition and drainage.
Crawl Space Vapor Barrier InstallationCrawl space vapor barrier installation with heavy poly sheeting that covers the dirt floor, overlaps and tapes at…Explore 
Crawl Space DehumidifiersCrawl space dehumidifiers sized for the area and the moisture load, with a drain line to a pump…Explore 
Crawl Space Vent Sealing and ClosingCrawl space vent sealing and closing with rigid foam, vent covers or framed infill, done as part of…Explore 
Crawl Space InsulationCrawl space insulation with foam board or spray foam on the foundation walls, or batts in the floor…Explore Tell us about your property and we will call you back to set up a visit.
Or call (615) 357-7797 to talk now.
