Mold in the walls of a Cottontown home usually means a cavity stayed wet, whether from a slow plumbing leak, rain working in around windows or siding, or flash flooding like the May 2017 storm that hit this part of Sumner County. Fixing it means stopping the water, cutting out moldy drywall and insulation and drying the framing before rebuilding. Call the number on this page to be connected with a local mold remediation company in Cottontown.

Warning signs in Cottontown homes
- An earthy, closed-up smell that is worse when the house has been shut for a while.
- Paint that puckers, cracks or flakes in one area.
- Gray or brown blotches near the floor or under a window.
- Caulk lines or grout that stay damp around a tub or shower.
- Drywall tape lifting at the seams.
- A baseboard or door casing that feels spongy when pressed.
Local conditions in Cottontown
Cottontown is a small unincorporated community along State Route 25 northwest of Gallatin, about 24 miles from Nashville. On the morning of May 19, 2017, flash flooding hit Cottontown during a wider Sumner County storm, and the water had begun to recede by later that day. Even when floodwater leaves quickly, wall cavities don't dry on their own: drywall pulls water upward and insulation holds it. EPA's disaster guide says that if a flooded home couldn't be dried within 24 to 48 hours, you should assume mold has grown. The county Flood Insurance Study adds that headwater streams rise fast in intense local rain, with major floods usually in late winter and early spring.
Day to day, most wall mold starts inside the house: a drain line behind a vanity, a washing machine hose, or an ice-maker line running through a kitchen wall.

Cost factors
Angi reports a national range of about $1,000 to $20,000 for removing mold from walls, and Middle Tennessee prices vary. Price follows the amount of drywall removed, the wet insulation, the containment needed, how many rooms are involved and whether new drywall and paint are part of the quote. Jobs of $25,000 or more need a Tennessee contractor's license, and mold remediation is the S-F classification. Check the company on TDCI's Verify a License search.
What happens when you call
The number on this page connects you with an independent local mold remediation company. They'll want to know where the problem is, what water the wall may have had, and whether the house took on water in a storm. Expect moisture readings and a written scope. If studs or sills need replacing, unincorporated Sumner County permits go through the Sumner County Building & Codes Department in Gallatin.
Mold in Walls & Drywall questions in Cottontown
Water got into my walls in a storm. How fast does mold start?
How much of the wall will be cut out?
Will homeowners insurance pay for mold inside my walls?
Do I need a permit to rebuild walls after mold removal?
More mold services in Cottontown
Mold in Walls & Drywall nearby
Sources
- Wikipedia: Cottontown, Tennessee
- NewsChannel 5: Dramatic rescues play out in Sumner County
- Sumner County Flood Insurance Study, Volume 1 (pdf)
- Sumner County Building & Codes Department
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- Angi: How Much Does Mold Remediation Cost? (2026 data)
- Tennessee Contractor Classification Outline (TDCI)
- TDCI: Bidding FAQs
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