HVAC & Air Duct Mold Removal in Brentwood, TN

Why would only one system in my Brentwood house smell musty?

Many larger homes run separate systems for the main floor and the upstairs, often with one air handler in a crawl space or basement and another in the attic. Each has its own coil, pan and drain, and each faces different conditions. The lower unit sits in damp air near the ground, where ducts can sweat. The attic unit works in extreme summer heat, where a leaky duct joint or a drain pan that overflows can wet insulation and drywall below. When only one zone smells, that tells the company where to start. Shut that system off, since EPA advises against running one you suspect is contaminated.

Did the May 2010 flood affect homes here?

Yes. About 16.6 inches of rain fell over two days, the Little Harpeth River flooded Brentwood's far west side, and Mill Creek and Owl Creek flooded the far east side, both areas mostly subdivisions. Williamson County notes that flash floods can come with little warning and that standard homeowner's policies don't cover flooding. If your house is near one of those streams and ductwork or equipment sits below the main floor, check FEMA's Flood Map Service Center for your property and have the system looked at after any serious high water.

What does a proper remediation job look like?

A sound scope starts with inspecting each air handler and the duct runs the company can reach, then explains what caused the growth. Metal ducts and plenums can usually be cleaned. EPA says wet or moldy duct board and internal duct liner generally can't be, so those get replaced, as does moldy flex duct. The drain, insulation or humidity problem is fixed before the system restarts. Angi reports national ranges of about $600 to $2,000 for duct mold cleaning and $3,000 to $10,000 for HVAC system mold work; prices around Brentwood vary.

Local permits and complaints

Replacing ductwork or equipment may need a permit from the City of Brentwood Planning and Codes Department, which has an online permitting portal. Its Codes Enforcement Section handles property maintenance and nuisance code violations, reported through the city's Citizen Comment Form.