Crawl Space Encapsulation in Dunlap, TN

Dunlap sits on the floor of the Sequatchie Valley, a narrow trench that cuts sixty-five miles through the Cumberland Plateau. The escarpment rises more than a thousand feet just west of town, Walden Ridge walls the valley in on the east, and the Sequatchie River runs along the southeastern edge of the city. Water comes off those walls with nowhere to go but the valley floor — and that floor is limestone, riddled with caves, sinkholes and springs. A vented crawl space here stays damp until it's properly sealed — no dehumidifier required.

A LOT OF PEOPLE DON'T NOTICE THIS

Why Dunlap crawl spaces stay wet

Dunlap is hemmed in by thousand-foot walls on both sides, and every hard rain drains off the plateau onto the valley floor where the town sits. The Sequatchie Valley was carved out of limestone, so the ground under your house is cave country — it holds and moves water long after the rain stops, and the river runs right along the edge of town. A vented crawl space pulls that damp air straight in through the foundation, where it condenses on the cooler ground and framing under your floor. The result is mold, wood rot, soaked insulation, and musty air pulled up into the house through the floor.

WE CAN DO THEM BOTH

Older homes and newer builds — both need sealing

Dunlap is rural country — farm homes out in the valley, older houses left from the coal and coke days, and newer builds scattered between. Whatever the age, our system seals the humidity out of the crawl space instead of trying to dry it after the fact. We line the walls and rim joists with closed-cell spray foam, cover the ground, and seal the vents — so the damp air never gets in to begin with. That's why we don't hand you a dehumidifier and a power bill to run it forever.

With the vents sealed and the ground fully covered, the crawl space stays dry and stable year-round — no standing humidity, no musty air rising into the house, and no dehumidifier running up the power bill. The space under your floor finally works with your home instead of against it.

Benefits

Once sealed, the crawl space joins your home's conditioned envelope, and your HVAC stops fighting humid air rising through the floor. Ductwork under the house runs in a sealed, moderate space instead of a damp one, air leakage through the floor system drops, and the system cycles less to hold the same temperature. And because our encapsulation needs no dehumidifier, there's no extra appliance under there adding to your power bill month after month.

Energy Savings

  • Why don't you install a dehumidifier when other companies do?

    Because we actually seal the crawl space. We line the walls and rim joists with closed-cell spray foam — it's the insulation and the moisture-and-air barrier in one. Most companies don't run closed-cell foam, so they can't fully seal the space; they drop in a dehumidifier to manage the moisture they can't keep out. That's a bigger bill up front and an appliance running on your power for years. We're one of the only crews in Catoosa County that truly seals it, so it stays dry on its own — no dehumidifier.

  • Is this more or less expensive than a dehumidifier system?

    Less, once you look past day one. Ours is a one-time seal with nothing to run — no dehumidifier on the power bill, no filters, no unit to replace in eight or ten years. Systems built around a dehumidifier usually cost more overall once you add the equipment, the electricity, and the upkeep.

  • It rains a lot here — can encapsulation really handle it?

    Yes. Heavy rain and ridge runoff are exactly why we seal with closed-cell foam and a heavy ground barrier, and add a sump pump where the water table or runoff calls for it.

  • Will it lower my energy bills?

    Yes. A sealed, conditioned crawl space stops your heated and cooled air from leaking into the ground and eases the load on your HVAC — which shows up on the power bill.

FREE ESTIMATE