Mold remediation
Water damage drying
Fire & smoke cleanup
Storm response
Sewage cleanup
ReconstructionFree visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Get your free estimateFast, Reliable Mold Remediation Across San Marcos
Mold Remediation in San Marcos homes typically costs $1,800 – $6,500 depending on square footage affected, containment needs, and whether crawlspace or subfloor treatment is required. Most jobs we handle start within 24 hours of your call because San Marcos’s hot, humid summers turn a small water intrusion into a full-blown mold problem fast. We know the creek corridors, the pier-and-beam homes near downtown, and the newer slab construction by Texas State. That local knowledge means we check for problems other companies skip. Call (325) 237-2088 and a live person answers, day or night.
Key Takeaways:
– Mold begins growing within 24 – 48 hours after water intrusion in San Marcos’s humid climate
– Pier-and-beam homes (common in downtown and older neighborhoods) hide mold in crawlspaces that slab homes don’t have
– Written price before any work starts, guaranteed in writing
– Before-and-after photos sent by text so you see exactly what was done
Why Wendell Restoration Austin Is San Marcos’s Preferred Mold Remediation Company
San Marcos homeowners call us because we show up when we say we will, with a live arrival time you can track like a rideshare. No vague four-hour windows. No phone tag. We have been doing Mold Remediation work across San Marcos since our founding in 2006, and the reviews from San Marcos customers consistently mention two things: the price we quoted was the price they paid, and the crew treated their home like it was their own. Blake Sorensen leads our team, and every technician who walks through your door is background-checked and wearing a Wendell uniform so you know exactly who you’re letting in.
We work under IICRC, RIA, and IFA standards. That means containment barriers, negative air pressure, HEPA filtration, and moisture mapping on every job, not just the big ones. When we hand you a written scope, it includes drying logs and moisture readings, so you have proof the mold is actually gone, not just painted over. We serve San Marcos from our Austin dispatch office, which keeps response times tight without losing local familiarity with the neighborhoods, the soil conditions, and the building styles that create mold problems here.
Restoration work we handle






Professional Mold Removal in San Marcos
Professional mold removal in San Marcos means more than spraying bleach on a wall and hoping for the best. The job involves setting up containment to keep spores from spreading to clean areas, running HEPA air scrubbers, removing affected drywall and insulation, treating framing with antimicrobial products, and drying the space to verified moisture levels using equipment from Dri-Eaz and Phoenix. San Marcos homeowners need this level of work because the humidity here means surface cleaning alone leaves enough moisture behind for mold to return within weeks.
Containment and Air Filtration
Before we pull down any drywall, we seal off the work area with plastic sheeting and run negative air machines so mold spores don’t drift into your living room or kitchen. This is standard on every job we do in San Marcos because opening up a wall cavity full of mold without containment spreads the problem through the whole house. Your family breathes easier when the spores stay put.
Drying to Pre-Loss Moisture Levels
Mold can’t come back if the moisture is actually gone. We use moisture meters and psychrometric readings (tracking the air’s moisture level so we know when your home is truly dry, not just surface-dry) to verify the framing, subfloor, and drywall are back to pre-loss conditions. Every job includes drying logs you can review.
Mold Inspection in San Marcos
Mold inspection in San Marcos starts with a visual walkthrough and moisture mapping of your entire home, not just the room where you see the black spots. We check crawlspaces, behind baseboards, inside closet walls, under sinks, and around windows. Because San Marcos has so many pier-and-beam homes, a lot of mold problems start under the floor where you never see them until the odor gets bad or the floors start to sag. A typical mold inspection in San Marcos runs $250 – $500 depending on home size and whether lab testing is requested.
Moisture Mapping With Readings
We don’t guess. Every inspection includes moisture readings from walls, floors, and the crawlspace recorded into a report you keep. If we find elevated moisture behind a wall with no visible mold, we flag it before it becomes a $15,000 problem. That early warning is why inspections catch issues remediation alone might miss.
What Triggers a Call
A musty smell that won’t go away, unexplained allergy symptoms, water stains on ceilings, or that distinctive earthy odor after a San Marcos thunderstorm. If you have had a roof leak, a drain backup, or a washing machine overflow in the past year, an inspection now can find mold before it spreads into hidden cavities.
Trusted Brands We Service in San Marcos
We run Dri-Eaz dehumidifiers, Phoenix air movers, and XPOWER air scrubbers on every San Marcos job because these are the brands that hold up under sustained use in restoration work, not the consumer-grade stuff from a big box store. We keep a stocked inventory of replacement filters, HEPA cartridges, and parts so we aren’t waiting on a shipment when your San Marcos home needs equipment running today. The same gear we use on large commercial loss sites is what we bring to a three-bedroom house near the Blanco River.
See the difference
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After
Before
After
Before
AfterCommon Mold Remediation Problems We See in San Marcos Homes
- Pier-and-beam crawlspace mold after flash floods. Homes built in the 1920s through 1970s near downtown San Marcos sit on raised foundations with dirt crawlspaces that trap moisture. After a heavy rain, water pools under the house and wicks into subflooring, and mold grows inside the floor system before you ever see it.
- Mold behind walls in student housing near Texas State. Fast-built apartment and rental units from the 1990s and 2000s often have shallow roof pitches and tight framing. Small leaks go unnoticed because tenants don’t own the property and landlords don’t live in it. By the time we’re called, mold has spread through multiple wall cavities.
- Simultaneous roof and drain failures in creek-corridor homes. The 1970s ranch-style homes along the Sink Creek and Blanco River corridors frequently have original galvanized plumbing. A summer thunderstorm overhead floods the roof while the drain lines back up from saturated ground, creating two separate water sources that both need remediation.
- Mold returning after a paint-over job. We see this constantly in San Marcos: a landlord or handyman scrubs visible mold, paints over the stain, and calls it done. Moisture stays in the drywall, and within months the mold is back, usually worse. Real remediation requires removal, antimicrobial treatment, and verified drying.
Pricing for Mold Remediation in San Marcos, TX
We Also Serve Cities Near San Marcos
Beyond our mold remediation work in San Marcos, we serve Buda, Austin, Manor, and Pflugerville. If you live in one of those communities and need mold removal or inspection, the same written-price guarantee and live-answer phone line apply.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Mold Remediation in San Marcos
Mold begins growing on wet drywall within 24 to 48 hours, and San Marcos sits in Flash Flood Alley with hot, humid summers that accelerate growth faster than in drier regions like West Texas. The moment water intrudes, the clock starts. Call (325) 237-2088 the same day you notice water to prevent a minor intrusion from becoming a major remediation.
Yes, and most companies only check one. The 1970s ranch homes in those creek corridors often have original galvanized plumbing, and a storm that overwhelms the roof also backs up the drain lines. We check both before quoting so you don’t pay for a partial fix that leaves hidden water under your floors.
Pier-and-beam homes have a crawlspace under the floor that traps moisture and hides mold inside the subfloor system. Slab homes don’t have that cavity, so mold usually shows up in walls and flooring instead. Remediation on pier-and-beam means accessing the crawlspace, treating subfloor framing, and drying the under-house air, which adds labor but prevents regrowth. Call (325) 237-2088 to have your crawlspace evaluated.
Category 1 is clean water from a supply line or rain. Category 2 contains some contaminants, like a drain backup or sump overflow. Category 3 is sewage or floodwater from outside. The category affects how much material we remove and how aggressive the antimicrobial treatment needs to be. Floodwaters from San Marcos creeks are category 3 and require full containment plus demolition of affected porous materials.
We remove the affected drywall and insulation, treat the framing with antimicrobial products, and dry to verified moisture levels with Dri-Eaz and Phoenix equipment. Then we give you a written 365-Day Done Right Promise: if mold returns in the treated area within a year, we come back and fix it at no charge. That is in writing on every San Marcos job.
Mold problems in San Marcos don’t wait, and neither do we. Call (325) 237-2088 now and a live person answers. You’ll get a written price before any work starts, a live arrival time you can track, and before-and-after photos by text so you know the job is done right. Written by Blake Sorensen, Owner at Wendell Restoration Austin, serving San Marcos since 2006.