When a Pegram home's vents smell musty or show growth, the cause is almost always moisture inside or around the system, from a backed-up drain pan to ducts sweating in a damp crawl space. Turn the system off, then have the whole air path inspected. Call the number on this page to be connected with a local mold remediation company in Pegram.

Signs the system may have mold
- A musty smell that gets stronger once the blower has been running a few minutes
- Fuzzy or spotty growth on supply registers, the return grille or the filter frame
- Water in or around the air handler, or a condensate line that never drips in summer
- Duct wrap under the house that is damp, torn or hanging loose
- Ceiling stains in a ring around a vent
Local conditions in Pegram
Pegram is a small Cheatham County town along the Harpeth River on U.S. Route 70, about 16 miles from Nashville. River valleys like this one hold humid air through the summer, and Middle Tennessee houses often run ductwork through a vented crawl space where that air settles. When chilled supply air passes through those ducts, water beads on the outside and soaks the insulation. Add a heavy spring storm or a slow plumbing leak and the crawl space may stay wet for weeks. EPA's rule of thumb applies: dry wet areas within 24 to 48 hours, and fix the moisture or the mold will return.

What affects cost
Angi reports national ranges of about $600 to $2,000 for air duct mold cleaning and $3,000 to $10,000 for mold work on a whole HVAC system. Middle Tennessee prices vary. Expect the scope to depend on:
- How many feet of duct are affected, and whether it is bare metal or insulated duct, which EPA says generally has to be replaced
- Whether the coil, blower or drain pan need cleaning or replacement
- Crawl space clearance and attic access
- Moisture fixes such as duct sealing, new insulation or drainage
Cheatham County isn't one of the counties where the state Home Improvement license applies, but jobs of $25,000 or more need a Tennessee contractor's license with the right classification; for mold remediation that's S-F.
What happens when you call
You'll be connected with an independent company serving the Pegram area. They'll ask where the air handler and ducts are, what you've noticed and whether anything has been wet recently, then set up an inspection. If ducts or framing get replaced, Pegram's town building inspector is the official who issues permits under the town code, so ask the company to confirm whether one is needed.
HVAC & Air Duct Mold Removal questions in Pegram
Can I keep running the AC if I think the ducts have mold?
Why do ducts under the house sweat in summer?
Should the air handler and coil be checked, not just the ducts?
Should the inspector be a different company from the one doing the removal?
More mold services in Pegram
HVAC & Air Duct Mold Removal nearby
Sources
- Cheatham County, Tennessee (Wikipedia)
- Town of Pegram Municipal Code, Title 12 (MTAS, pdf)
- EPA: Mold Cleanup in Your Home
- EPA: Should You Have the Air Ducts in Your Home Cleaned?
- EPA: A Brief Guide to Mold, Moisture and Your Home
- Angi: How Much Does Mold Remediation Cost? (2026 data)
- Angi: How to Hire a Mold Remediation Company
- Tennessee Contractor Classification Outline (TDCI)
- TDCI: Bidding FAQs
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