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

Walls, Floors & Crawl Spaces

Blown-in wall insulation that fills closed walls without tearing off the drywall

Dense-pack insulation is blown through small holes into the stud cavities of finished walls, filling them completely and sealing the gaps.

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Blown-In Wall Insulation

Many older Middle Tennessee homes have little or no insulation in the walls. Opening the walls would be a huge job, but dense-pack insulation can be blown in through small holes drilled in the siding or the drywall, filling each stud cavity from top to bottom.

We insulate existing walls with dense-pack cellulose or fiberglass for homes across Nashville and Middle Tennessee. We find the cavities, work around blocking and fireblocks, fill to a measured density and patch the access holes so the wall looks like new.

What you get

Done right, from the first walk-through

01

Fills closed cavities

No need to open the walls.

02

Measured density

Packed firmly so it will not settle.

03

Holes patched

Siding or drywall restored.

04

Quieter rooms

Dense fill dampens outside noise.

The process

How your service comes together

  1. 1

    Scan the walls

    We map the cavities and check for blocking and obstacles.

  2. 2

    Drill and fill

    Insulation is blown into each cavity to density.

  3. 3

    Patch and finish

    Holes are patched and we clean up.

FAQ

Common questions about blown-in wall insulation

How do you know the wall is full?

We use density checks and keep filling until the hose pressure and the weight of the material show the cavity is packed.

Will it make a mess inside?

We protect floors, drill small holes and patch them afterward, so the mess is limited.

Is dense-pack safe with old wiring?

Dense-pack is installed around wiring, and we recommend an electrician check old cloth-covered wire first.

Related services

Often planned together

Batt & Roll Insulation Batt & Roll InsulationFiberglass and mineral wool batts fitted snugly, not stuffed.Learn more Wall Spray Foam Wall Spray FoamFoam in open stud walls that seals gaps batts leave behind.Learn more Soundproofing Insulation Soundproofing InsulationDense fill and sealed gaps for quieter rooms.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 blown-in wall insulation

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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