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

Attic & Roof Insulation

Attic air sealing that closes the hidden gaps where conditioned air escapes into the attic

Lights, wires, chases and top plates leak house air into the attic all day. Sealing them first makes any insulation work harder and better.

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Attic Air Sealing

Insulation slows heat, but it does not stop air. In most attics, conditioned air leaks through recessed lights, wire holes, plumbing chases, top plates and the gaps around chimneys and ducts. That leak pulls humid air into the house and wastes the work your HVAC does.

We air-seal attics across Nashville and Middle Tennessee before we add insulation. Our crews use foam, caulk, fire-rated materials and covers to close leaks safely, and we respect clearances around flues and recessed fixtures.

What you get

Done right, from the first walk-through

01

Top plates and chases

The biggest leaks closed first.

02

Wires, pipes and lights

Penetrations sealed with the right material.

03

Fire-safe details

Flues and fixtures handled correctly.

04

Pairs with insulation

Sealed first, insulated second.

The process

How your service comes together

  1. 1

    Find the leaks

    We inspect the attic floor and look for dust trails and gaps.

  2. 2

    Seal and cover

    Leaks are sealed with foam, caulk and covers.

  3. 3

    Insulate on top

    New insulation goes over a sealed floor.

FAQ

Common questions about attic air sealing

Is air sealing really necessary?

Yes. Without it, insulation can be bypassed by air that moves around it.

Is it safe around recessed lights and flues?

Yes, if done correctly. We use covers and clearances that match the fixture and code.

Does sealing first add time to the job?

It adds some time, and it also makes the insulation work much better. We explain what is worth doing.

Related services

Often planned together

Whole-Home Air Sealing Whole-Home Air SealingLeaks closed from the attic to the crawl space.Learn more Blown-In Attic Insulation Blown-In Attic InsulationFluffy, even coverage over the attic floor, corner to corner.Learn more Blower Door Testing Blower Door TestingA fan test that measures and finds your house's air leaks.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 attic air sealing

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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