San Marcos Flood Cleanup and Water Damage Repair, Day or Night

Where the Blanco Meets the San Marcos

San Marcos is built around water. San Marcos Springs, the third-largest group of springs in Texas, feed Spring Lake and the San Marcos River, which has never run dry in recorded history. Just outside town, the Blanco River joins it after an 87-mile run down from the Hill Country. Purgatory, Sink, Cottonwood and Willow Springs creeks also cut through the city.

At about 574 feet, the city straddles the Balcones Fault. Hills rise to the west, and flatter prairie stretches to the east. Rain that falls on the thin, rocky soils upstream can race into the Blanco and arrive in San Marcos hours later, sometimes in the middle of the night.

The city averages about 36.55 inches of rain a year. Inside, the usual suspects still cause most damage: leaking dishwashers, failed water heaters, overflowing upstairs units and AC drain lines. When any of these hits, call (888) 817-5061 to reach a local provider for water damage repair.

Memorial Day 2015 and Other Hays County Floods

The flood many residents still remember came over Memorial Day weekend in 2015. Upstream at Wimberley, the Blanco River jumped from about 5 feet to more than 40 feet in a few hours, going from below flood stage to major flood stage in 45 minutes. The surge reached San Marcos just before 3 a.m. on May 24, and the San Marcos River crested at 43.08 feet a little after 5 a.m.

• Across Hays County, 321 homes were destroyed and hundreds more were heavily damaged. Ten deaths were reported in the flood, including one in San Marcos.
• Water covered Interstate 35 for the first time.
• A second flood on October 30, 2015 pushed the Blanco River gauge at Kyle to 37.24 feet, higher than the May crest there.

Earlier, in October 1998, more than 30 inches of rain was estimated over a small area just south of San Marcos in only 36 hours. These events show why river water in a home calls for professional flood damage restoration: it is contaminated and leaves silt and debris deep inside walls.

What to Do in the First Hours

1. Leave if water is rising outside. River floods here can arrive fast and at night. Do not drive across flooded roads or low-water crossings.
2. Stop indoor leaks at the valve. Close the fixture shutoff or the main water valve. Apartment residents should alert management right away.
3. Avoid shock hazards. Keep away from wet outlets and appliances, and switch off breakers only from a dry spot.
4. Separate clean from dirty water. A clean supply line (Category 1) carries far less risk than river water or a sewage backup (Category 3).
5. Photograph everything. Capture the source, the water line on walls and damaged belongings.
6. Request extraction. Dial (888) 817-5061 and ask to be put in touch with a San Marcos-area provider for emergency water removal.

Measuring, Drying and Rebuilding

Water hides. It slides under laminate, wicks up drywall and soaks the bottom plates of walls. A methodical process keeps small leaks from becoming big repairs.

Inspection and moisture readings

Technicians use moisture meters and thermal cameras to map wet areas, including spaces you cannot see. Readings are recorded as a baseline.

Water removal and tear-out

Extractors remove standing water. After river flooding, saturated drywall, insulation and carpet pad are usually cut out and discarded, and surfaces are cleaned and disinfected.

Drying to target

Air movers and dehumidifiers run while readings are checked each visit. This structural drying log supports your claim and shows when repairs can safely begin.

Repairs

Drywall, flooring, trim and cabinets are replaced or refinished last. Ask the company about its licensing, insurance and training, such as IICRC certification, before you sign a contract.

Students, Renters and Apartment Leaks

San Marcos is a young city. The median age is 23.7, shaped by Texas State University, and many residents rent. In apartment buildings, a leak in one unit can quickly reach the units below, so speed and communication matter.

• Tell your landlord or property manager in writing as soon as you find water.
• Take photos of your own belongings. Renter's insurance, if you have it, is generally for your possessions, not the building itself, and typically does not include flood.
• Do not start removing drywall or flooring in a rental without the owner's approval.

Property managers and owners can call (888) 817-5061 any time to be connected with a restoration company that handles multifamily and commercial work.

Mold After Flooding: What Texas Requires

Following EPA guidance, mold can appear on damp materials in as little as 24 to 48 hours. Flooded wall cavities and wet carpet pad are prime spots, so drying quickly matters after any water event.

Texas regulates mold work through TDLR, which licenses assessment and remediation professionals at the technician, consultant, contractor and company levels. Mold areas of 25 contiguous square feet or more generally require licensed professionals, and Texas does not allow one company to handle both the assessment and the remediation of the same job. Expect a Certificate of Mold Remediation within 10 days after the work wraps up.

Look up any company on the TDLR License Search, and learn more about mold cleanup in San Marcos and how containment works.

Flood Policies, Leak Claims and Record Keeping

• Buy flood coverage early. Most homeowners and renter's policies exclude flood. The NFIP and private carriers offer flood insurance, and NFIP coverage typically has a 30-day waiting period.
• Leak coverage has limits. The Texas Attorney General cautions that most Texas homeowner policies cover only sudden and accidental leaks and may exclude or cap mold remediation.
• Watch the rivers. The Guadalupe-Blanco River Authority lists flood resources, and TexasFlood.org offers guidance before, during and after a flood.
• Save your file. Keep photos, receipts, moisture logs and a list of discarded items.

Thorough records will not decide a claim on their own, but they make the adjuster's review clearer.

Storm Leaks and Frozen Pipes Along I-35

Heavy thunderstorms can damage roofs, break windows and drive water into attics and walls. Prompt tarping and drying are central to storm damage cleanup. Hard freezes are less common, but in February 2021 pipes burst across the state. Wrap exposed lines and know where your shutoff is before cold weather arrives.

WaterQ also connects callers in nearby New Braunfels and Austin.

San Marcos Areas and Hays County Communities

WaterQ's free 24/7 referral line connects callers across San Marcos and nearby Hays County towns with independent local restoration providers.

Neighborhoods

• Historic Downtown / the Square
• Texas State University area
• Spring Lake / Aquarena area
• Sewell Park and riverside area
• Wonder World area
• East San Marcos
• West San Marcos (Hill Country side)

Nearby communities

• Kyle
• Buda
• Wimberley
• Woodcreek
• Martindale
• Uhland
• Niederwald
• Dripping Springs
• Driftwood
• New Braunfels

Local emergency and flood resources

Official sources for alerts, flood maps and preparedness in and around San Marcos:

• City of San Marcos
• Hays County
• Guadalupe-Blanco River Authority flood resources
• TexasFlood.org