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615 Insulation, insulation company in Nashville TN 615-431-3789

Spray Foam Insulation

Crawl space spray foam that seals the walls and rim joist and keeps the damp out

Foam on the foundation walls and rim joist turns a leaky, humid crawl space into a sealed, conditioned buffer under the house.

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Crawl Space Spray Foam

Vented crawl spaces pull in humid outdoor air all summer, and that moisture lands on cool ducts, joists and subfloors. Foam on the walls and rim joist, combined with a ground liner, closes the crawl space so floors stay warmer in winter and the house stays drier in summer.

We insulate crawl spaces with closed-cell spray foam across Nashville and Middle Tennessee. We clear the space, seal vents, foam the walls and rim joist to depth and coordinate a vapor barrier on the ground so the whole space works together.

What you get

Done right, from the first walk-through

01

Foam on foundation walls

Sealed from the sill down.

02

Rim joist sealed

A common air leak closed tight.

03

Vents closed off

Humid outdoor air kept out.

04

Works with a ground liner

Walls and floor handled as a system.

The process

How your service comes together

  1. 1

    Survey the space

    We check moisture, access, vents and the condition of the floor above.

  2. 2

    Seal and spray

    Vents are closed, the walls and rim joist are foamed to depth.

  3. 3

    Add the ground cover

    We install or confirm the vapor barrier and review the space with you.

FAQ

Common questions about crawl space spray foam

Do I need a vapor barrier too?

Almost always. Foam on the walls and a liner on the ground work together to stop moisture.

Should the crawl space vents be closed?

With sealed walls and a ground liner, yes. We explain how conditioned crawl spaces are dried and monitored.

How long does it take?

Many crawl spaces take a day or two, depending on size, moisture and prep.

Related services

Often planned together

Crawl Space Encapsulation Crawl Space EncapsulationA sealed liner, dehumidifier and foam for a clean, dry crawl space.Learn more Rim Joist Spray Foam Rim Joist Spray FoamFoam on the rim joist that stops drafts and cold floors.Learn more Crawl Space Vapor Barrier Crawl Space Vapor BarrierA heavy ground barrier that stops soil moisture from rising.Learn more

Service areas

Nashville and the cities all around it

From Clarksville to Shelbyville and Dickson to Cookeville, pick your city to see the insulation, spray foam and air sealing work we handle in your part of Middle Tennessee.

Nashville Antioch Arrington Bellevue Brentwood Clarksville College Grove Columbia Cookeville Dickson Fairview Franklin Gallatin Goodlettsville Hendersonville Hermitage La Vergne Lebanon Madison Mt. Juliet Murfreesboro Nolensville Shelbyville Smyrna Spring Hill Springfield Thompson's Station White House

Not on the list? Call 615-431-3789. We take projects across Middle Tennessee.

Let us help with your crawl space spray foam

Call, text or send the form. Tell us about the building, what bothers you and when you hope to start, and we will take it from there.

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