Why mold is common in New Braunfels
New Braunfels, the largest city in Comal County, sits on Interstate 35 between San Antonio and Austin, where the Comal River meets the Guadalupe about 20 miles below Canyon Lake. NOAA's 1991–2020 normals for New Braunfels show about 34 inches of precipitation a year, with May, June, and September the wettest months.
The rivers brought two major floods within four years. On October 17, 1998, floodwaters displaced thousands of people and destroyed hundreds of homes and businesses across Comal County, causing nearly $385 million in damage. Less than four years later, on July 4, 2002, water poured over the Canyon Lake spillway for the first time since the dam was completed in 1964, and hundreds of homes downstream were severely damaged, some of them rebuilt after 1998.
Away from the rivers, the usual Central Texas problems apply: hail-damaged roofs, attic air handlers that overflow, slab plumbing that cracks as clay soils move, and pipes that burst in freezes like the February 2021 winter storm. The EPA recommends drying wet materials within 24 to 48 hours to keep mold from taking hold.
Source: NOAA climate normals
Mold services in New Braunfels
What mold work costs in Comal County
| Service | Typical range |
|---|---|
| Mold inspection, San Antonio area | $200–$600 |
| Post-remediation clearance test | $150–$400 |
| Remediation, priced per square foot | $9–$43 per sq ft |
| Typical residential remediation (national data) | $1,150–$3,400 |
| Extensive or whole-house growth | Up to about $20,000 |
New Braunfels prices here are borrowed from the San Antonio market to the south: inspection and clearance figures from San Antonio-area guides published in 2026 and a per-square-foot range from a 2026 San Antonio estimate, with typical and extensive job figures from national homeowner data. A flood cleanup that removes drywall and flooring from several rooms can push toward the top of these ranges. Compare written bids built on the same assessor protocol, and see the mold remediation cost guide.
Texas mold licensing: what to check
After a river flood, the first contractor at the door is not always a licensed one. In Texas, mold assessment and remediation are licensed by the Texas Department of Licensing and Regulation, and any removal covering 25 contiguous square feet or more must be done by a licensed mold remediation contractor. Check names and license numbers at tdlr.texas.gov, and since September 1, 2025, expect the workers themselves to hold TDLR credentials.
The assessor and the remediator must be separate: a license holder may not do both on one project. The assessor writes the protocol, the contractor follows it, and a post-remediation assessment must pass before the job is closed. You should receive the Consumer Mold Information Sheet before work starts and a Certificate of Mold Damage Remediation within 10 days of the passed clearance. A homeowner working on a property with fewer than 10 units does not need a license.
Will insurance cover it?
Homes along River Road, near Landa Park, or below Canyon Dam face real flood risk, and flood water is outside a standard homeowners policy. It takes a separate flood policy, and FEMA says a new National Flood Insurance Program policy usually has a 30-day waiting period. In July 2025, as the Hill Country flood moved down the Guadalupe, residents along River Road in New Braunfels were evacuated on July 5, a reminder that the river can rise with little warning.
Water that starts inside the home is handled differently. According to the Texas Department of Insurance, most homeowners policies cover sudden and accidental water damage, such as a burst pipe, and mold on items it damaged, but not gradual leaks, and many cap or exclude mold remediation. Take photos before cleanup, report promptly, and keep the Certificate of Mold Damage Remediation from the finished job, since an insurer may not base underwriting on mold damage the certificate shows was corrected. See our mold insurance guide.
Areas we connect you in
Downtown New Braunfels, Gruene, Landa Park, River Road, Oak Run, Canyon Lake, Schertz, Cibolo, Seguin, and surrounding neighborhoods of New Braunfels.