Crawlspace Encapsulation in Jasper, TN

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Crawlspace Encapsulation for Jasper Homes in the Sequatchie Valley

Prince Insulation does crawlspace encapsulation in Jasper the same way we do it at home in Franklin County: a 10 mil vapor barrier over the dirt, every seam taped, every pillar wrapped, and R10 closed-cell foam on the perimeter foundation. Jasper sits low in the Sequatchie Valley, and the air under these houses stays damp more often than not. Seal the space and that air stops getting in. Our crawlspace encapsulation system is the same on every job, installed by our own full-time crew, and Prince Insulation has served Marion County for years.

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Why Jasper Crawlspaces Stay Damp Down in the Valley

Come down the mountain on I-24 from Monteagle on a fall morning and you'll see it: fog sitting on the valley floor around Jasper well after sunup. That cool, wet air settles into vented crawlspaces. Summer flips it. Warm, humid air pulls in through the foundation vents, hits the cooler ground and block, and condenses. Joists stay damp. The old fiberglass batts between them soak it up and sag. By August the hallway smells like the crawlspace.


An encapsulated crawl space puts a sealed barrier between the house and the wet ground, and foam on the walls where outside air comes through the block. Jasper homeowners searching crawl space encapsulation near me will turn up a few crawl space contractors. We're the one coming over the mountain from Decherd, and we've been insulating homes in this part of Tennessee since 1980.

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Encapsulated crawl space with a vapor barrier running under the plumbing

Inside a Prince Crawlspace Encapsulation in Jasper

Encapsulated crawl space with a white liner over the ground and up the block piers and walls

10 Mil Vapor Barrier and Wrapped Pillars

The ground gets a 10 mil crawl space vapor barrier, and every block pillar gets wrapped so no bare dirt or block is left breathing moisture into the space. Pillars are where shortcuts show. One loose cut at the base of a pier and the damp comes right back. The material itself is covered on our vapor barrier installs page.

Finished crawl space encapsulation with a white liner over the ground and foil-faced wall insulation

Taped Seams for Tight Crawl Space Sealing

Every seam in the liner gets taped. That step is most of what crawl space sealing comes down to. Untaped overlaps let ground moisture wick up between the sheets, and after a wet spring week in the valley, the dirt under a Jasper house can stay soaked for days.

Framed room interior with spray foam on one wall and fiberglass batts on the next and overhead

R10 Closed-Cell Foam on Jasper Foundation Walls

The perimeter foundation gets R10 closed-cell spray foam. That's crawl space insulation and an air seal in one coat, and it keeps January air off the block when the cold settles down into the valley. We run three spray rigs out of Decherd, so the foam isn't waiting on somebody else's schedule. More on our open and closed-cell foam.

Worker rolling a grey liquid moisture-barrier coating across a tiled floor

Replacing a Torn Crawl Space Moisture Barrier

Plenty of older houses near downtown Jasper already have plastic on the ground. Usually it's thin, torn up by whoever last crawled under to fix a pipe, and pulled back from the piers. At that point it isn't a crawl space moisture barrier anymore. We replace it with the full encapsulation setup: new liner, taped seams, wrapped pillars, foam on the walls.

Jasper Crawlspace Work From a Decherd Shop Running Since 1980

Prince Insulation started in 1980 as a fiberglass-only outfit. Dewayne Hill took it over in 2008, started spraying foam in 2010, added a second rig in 2017 and a third in 2021. Today it's 12 full-time employees working out of the warehouse on Hill Coulson Road in Decherd. Every project is handled by those employees, the company is licensed and insured, and Jasper is part of our regular territory, not a town we squeeze in. If the attic needs work too, ask about re-insulating the attic while we're there.

Encapsulated crawl space with a white liner underfoot and a trunk duct and drain line overhead

Quick Quotes and On-Time Crews for Jasper Homeowners

We try to answer every call live, and missed calls get returned within an hour. Quotes come back quick. When we put you on the schedule, we show up when we said we would. All work is guaranteed. On a Jasper crawlspace, one crew handles the liner, the tape, the pillars, the foam, and a crawlspace dehumidifier if the space calls for one. That's the whole set of crawl space services under one company.

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Crawlspace Encapsulation Around Jasper and Marion County

From Jasper the work runs down the river to crawlspace jobs in South Pittsburg, up Highway 28 to Whitwell homes, and back up the mountain through Monteagle and Sewanee on the way home to Decherd. Anyone in the valley searching crawl space encapsulation near me gets the same system and the same crew Jasper does.

Jasper Crawlspace Encapsulation Questions

Talk to Prince Insulation About Your Jasper Crawlspace

Call (931) 580-0088 or use the form at the top of the page. Tell us what you're seeing under the house: a musty smell, wet dirt, sagging insulation, torn plastic. We'll take it from there.

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Learn More About Prince Insulation

Serving Winchester, TN, Tullahoma, TN, Manchester, TN, Jasper, TN, and surrounding areas. Prince Insulation specializes in residential insulation and commercial insulation. Quick response times. Competitively priced. Free estimates. Call us today.

Get In Touch

(931) 580-0088
dewaynehill382@gmail.com
187 Hill-Coulson Rd, Decherd, TN 37324, United States