Mold Inspection & Remediation in Round Rock, TX

Round Rock straddles Williamson and Travis counties along Interstate 35 north of Austin, and takes its name from a rock in Brushy Creek, which still runs through the city. NOAA's 1991–2020 normals for Austin, the nearest station, show about 36 inches of precipitation a year, with May the wettest month at about 5 inches. Storms along the Balcones Escarpment can drop heavy rain quickly, and creeks rise fast.

The area keeps growing: neighboring Georgetown ranked among the five fastest-growing large cities in the country from 2015 to 2016, according to the Census Bureau. Most homes in Round Rock and Georgetown are newer, slab-on-grade houses with air handlers and ducts in the attic. Condensation on ducts, overflowing drain pans, and plumbing fittings behind walls are the usual sources of hidden moisture in homes like these.

East of I-35 the land turns to the dark clay soils of the Blackland Prairie, which swell when wet and shrink in drought and can crack plumbing beneath slabs. Hail and hard freezes, like the February 2021 winter storm, add roof leaks and burst pipes. The EPA recommends drying wet materials within 24 to 48 hours to keep mold from taking hold.

Round Rock sits inside the Austin pricing market, so the table uses Austin contractor guides: inspection prices from guides published in 2026, the job range from a 2026 Austin guide, and per-square-foot pricing from a 2025 Austin cost guide. Ask whether a quote includes putting back drywall and insulation, because some remediation bids stop at removal and leave the rebuild to you. Our cost guide explains the main price drivers.

Mold work in Round Rock follows the same state system as the rest of Texas, run by the Texas Department of Licensing and Regulation. In a newer slab home the problem is usually small at first, a damp spot around an attic drain pan or a wet wall behind a laundry hookup, but once the affected area reaches 25 contiguous square feet, removal legally requires a licensed mold remediation contractor.

Hire the inspection and the cleanup from separate companies; a license holder may not assess and remediate the same project. Each firm should hand you the Consumer Mold Information Sheet before starting. Since September 1, 2025, their employees on the job need TDLR credentials too, and you can confirm any name at tdlr.texas.gov. When the clearance report passes, the contractor has 10 days to give you a Certificate of Mold Damage Remediation, a document worth keeping with the house records.

In a suburb of mostly newer homes, the common claim is not a flood but a failure: a supply line that bursts, a water heater that lets go in the garage, or a pipe that splits in the attic during a hard freeze. The Texas Department of Insurance says most homeowners policies cover that kind of sudden and accidental water damage, along with mold on items it damaged. Slow leaks that went on for weeks, such as a sweating duct over a bedroom ceiling, usually are not covered, and many policies cap mold remediation.

Homes near Brushy Creek and its tributaries face another gap: rising water is excluded from homeowners coverage and needs a separate flood policy, which under FEMA rules usually starts 30 days after purchase. Keep the Certificate of Mold Damage Remediation from any job, because it bars an insurer from using the corrected mold damage in an underwriting decision. See does insurance cover mold.