Mold Testing in Brentwood, TN

Our subdivision flooded in 2010. Is testing still worth it?

It can be, if the house was repaired fast and you've never checked behind the new finishes. In the May 2010 flood, about 16.6 inches of rain fell on Brentwood over two days. The Little Harpeth River flooded the far west side and Mill Creek and Owl Creek flooded the far east side, both areas made up mostly of subdivisions. Homes that were dried quickly and rebuilt properly are usually fine. But if you notice a stale smell in a lower-level room, or a finished basement feels damp in summer, targeted air or wall-cavity sampling can tell an inspector where to look. Williamson County's flooding page also reminds owners that a standard homeowner's policy doesn't cover flood damage.

How do I know the lab results are meaningful?

Ask three questions before anyone samples. What question will this answer? Will you take an outdoor sample for comparison? What will you recommend if the results come back high, or normal? There are no federal limits for mold spores, so results are judged by comparison and by what the tester sees. A report that only lists spore counts, with no outdoor baseline and no moisture readings, leaves you guessing.

Should the tester be a different company from the remover?

That's the better approach. Tennessee doesn't require it, but Angi recommends separate companies for testing and remediation, especially for clearance testing after the work. Angi's national range for a mold test is about $250 to $500, with extra samples costing more, and Williamson County prices vary.

A local note

Repairs after remediation that need a permit go through the City of Brentwood Planning and Codes Department on Maryland Way, which also runs an online permitting portal. Tenants with unrepaired leaks can report suspected property maintenance violations to the city's Codes Enforcement Section through the Citizen Comment Form. If testing leads to a remediation job of $25,000 or more, Tennessee requires a contractor's license before the company can bid, and the mold remediation (S-F) classification is the one to look for; check any company on TDCI's Verify a License search. For health questions, the Williamson County Health Department is on West Main Street in Franklin.