Water damage repair and restoration in San Marcos, TX
In San Marcos, TX, the most common water damage sources are leaking appliances and plumbing, roof leaks and storm runoff. 48% of San Marcos's 29,892 homes were built in 2000 or later, so most water damage starts with supply lines, water heaters, appliances and roof or window leaks rather than old pipes. Restoration companies in our network serve 2 San Marcos ZIP codes in Hays County.
Quick answer
For water, fire or smoke damage in San Marcos, TX, shut off the water or power if it's safe, then call (833) 462-1975. We connect you with an independent restoration company that serves your ZIP; 2 San Marcos ZIP codes are covered. In newer homes here, appliance and supply-line leaks are the most common cause.
Census data
San Marcos homes by the numbers
- Homes
- 29,892
- Median year built
- 1998
- Built before 1960
- 11%
- Owner-occupied
- 30%
Among the 69 Texas cities with pages on this site, San Marcos ranks #33 by number of homes and has older housing than 34% of them (median build year 1998). Its share of pre-1960 homes (11%) is close to the 8% average for those cities.
Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates (tables B25034, B25035, B25003); 74,316 residents per the 2024 population estimate.
Local risks
What causes water damage in San Marcos
Hidden leaks in newer construction
Newer San Marcos houses often hide water heaters, air handlers and laundry on upper floors or in attics, so a failed fitting or condensate line can soak ceilings and walls below before anyone notices.
Apartments and shared walls
Renters occupy about 70% of San Marcos's homes. In multi-unit buildings, water from one unit travels through floors and shared walls, so report leaks to the landlord or association in writing right away.
Flash flooding
Houston's flat terrain and heavy rain flood streets and homes, as in Harvey (2017).
Seasonal risks, licensing and FEMA history across the state are on the Texas page.
Common calls
Most requested in San Marcos
Disaster history in Hays County
Since 2000, FEMA has included Hays County in 9 major disaster declarations: 3 severe storms, 2 floods, 1 winter storm, 1 ice storm, 1 fire, 1 hurricane. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in 2024 (DR-4781).
Source: OpenFEMA disaster declarations, retrieved October 5, 2026.
FAQ
San Marcos water damage questions
Who do I call for water damage in San Marcos?
For water, fire or smoke damage in San Marcos, TX, shut off the water or power if it's safe, then call (833) 462-1975. We connect you with an independent restoration company that serves your ZIP; 2 San Marcos ZIP codes are covered. In newer homes here, appliance and supply-line leaks are the most common cause.
How old are homes in San Marcos?
The median home in San Marcos was built in 1998. About 11% of its 29,892 homes were built before 1960 and 48% in 2000 or later, according to the Census Bureau's American Community Survey. Older homes are more likely to have corroded pipes and drains; newer homes see more appliance and supply-line leaks.
Has Hays County had federally declared disasters?
Yes. Since 2000, FEMA has included Hays County in 9 major disaster declarations for storms, floods, fires and similar events, most recently Severe Storms, Straight-Line Winds, Tornadoes, and Flooding (2024). Federal assistance is only available for declared events; most water damage is handled through homeowners or flood insurance.
Do you cover all of San Marcos?
Restoration companies in our network cover 2 San Marcos ZIP codes. Coverage is set ZIP by ZIP, so enter yours in the ZIP checker or call to confirm a company serves your address.
ZIP codes covered in San Marcos
78666, 78667
Water damage help near San Marcos
- Water damage restoration in Kyle, TX9 mi
- Water damage restoration in New Braunfels, TX16 mi
- Water damage restoration in Canyon Lake, TX19 mi
- Water damage restoration in Schertz, TX29 mi
- Water damage restoration in Austin, TX31 mi
- Water damage restoration in Pflugerville, TX44 mi
- Water damage restoration in San Antonio, TX45 mi
- Water damage restoration in Cedar Park, TX45 mi
Also covered in Hays County: Maxwell · Kyle · Buda · Dripping Springs · Wimberley · Driftwood
Guides for San Marcos homeowners
Water damage in San Marcos?
Stop the source if you can, then call. We'll connect you with a local restoration company that serves your ZIP.
Fast callback on emergency requests