Mold Inspection and Testing San Marcos TX you can trust
Mold Inspection and Testing San Marcos TX is how you find out whether that musty smell, ceiling stain, or post-leak dampness is actually mold - and how bad it is. We inspect, sample, and test, then hand you a written report with lab results and a straight answer about next steps. If you have had water damage, a roof leak, or high humidity in Hays County, this is where to start.
Service overview
What mold inspection and testing San Marcos TX really involves
Mold inspection and testing San Marcos TX is a two-part process: a visual and moisture assessment of the building, then laboratory analysis of air and surface samples. We start with a moisture meter and thermal imaging camera to map where water is hiding behind drywall, under LVP, or inside a wall cavity. Then we collect air samples with a calibrated pump and surface samples with swabs or tape lifts. Samples go to an accredited lab, and you get a written report with spore counts, species, and a comparison against outdoor baseline levels. San Marcos sits in a humid subtropical pocket of Central Texas where summer dew points sit in the 70s and spring storms dump inches of rain in hours. That combination keeps attics, crawl spaces, and slab-on-grade homes damp long after the storm passes. If you have had a burst supply line, an AC condensate pan overflow, or a roof leak and failed flashing, mold can start colonizing wet drywall and joint compound in 24 to 48 hours. That is why homeowners search for mold testing near me San Marcos after every big rain.
! Common warning signs
Musty odor with no visible growth
A persistent musty smell usually means mold is growing inside a wall cavity, under flooring, or in the HVAC system where you cannot see it. Ignoring it lets the colony spread and can aggravate allergies and asthma.
Ceiling stain after a roof leak
A ceiling stain means water reached the drywall from above - often a roof leak, failed flashing, or an AC condensate pan overflow. Drywall and joint compound stay wet and can grow mold within 48 hours, even after the stain dries.
Mold found during a real estate inspection
A buyer or seller who finds mold during a transaction needs fast, documented answers. Delays can kill a closing, and vague reports leave both sides arguing about scope and cost.
Scope of work
What our mold inspection and testing includes
Every inspection is built around finding the source, measuring the extent, and giving you a report you can act on. Here is what is included in a standard visit, and what we can add if your situation calls for it.
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01
Full visual and moisture assessment
We walk the property room by room with a moisture meter and thermal imaging camera, checking attics, crawl spaces, HVAC closets, under sinks, and around the water heater. A borescope inspection camera lets us look inside wall cavities without cutting. This phase usually takes 45 to 90 minutes.
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Air and surface sampling
We set up calibrated air sampling pumps for 5 to 10 minutes per location, typically one indoor sample per affected area plus one outdoor baseline. Visible growth gets surface samples via swab or tape lift. Most homes get 3 to 6 samples total, and every sample is labeled and logged.
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Accredited lab analysis
Samples ship to an accredited lab that reports spore counts by species. Turnaround is 24 to 48 hours, with rush options available for real estate deadlines. You get the raw lab data plus our plain-language explanation of what it means for your home.
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Written report and recommendations
The final report includes sample locations, lab results, moisture readings, photos, and a clear recommendation: no action, monitor, or remediate. If remediation is warranted, we outline the scope and can hand it straight to our IICRC AMRT-certified crew. It is also formatted for insurance adjusters.
Why get a professional mold inspection
A proper inspection tells you what you have, where it is, and whether it needs remediation - before you spend money on guesswork. Here is what that gets you.
Book an inspectionTools and methods we use
Thermal imaging camera
Detects temperature differences behind walls, under floors, and around windows to find hidden moisture that a visual inspection would miss. We use it on every inspection to map suspect areas before sampling.
Moisture meter
Measures moisture content in drywall, wood framing, and subfloor. Readings above 16 percent on wood or 1 percent on drywall indicate a problem. We log readings at every suspect location.
Borescope inspection camera
A thin camera that slips into wall cavities through a small hole, letting us see mold growth and moisture damage without cutting open drywall. It confirms what the thermal camera suggests.
Calibrated air sampling pump
Draws a known volume of air through a spore trap cassette for 5 to 10 minutes per location. The cassette goes to an accredited lab for spore count analysis by species.
Local execution
San Marcos sits in a humid subtropical pocket of Central Texas where summer dew points stay in the 70s and spring storms drop inches of rain in hours. That climate keeps attics, crawl spaces, and slab-on-grade homes damp long after the storm passes. We see the same patterns repeatedly: AC condensate pan overflows in July and August, roof leaks and failed flashing after spring hail, and slab leaks that run silently under engineered hardwood for weeks. Homes near the Blanco River Basin Corridor deal with flood intrusion, while older housing stock near Downtown and Dunbar often has pier-and-beam foundations where crawl space standing water and elevated humidity wick into subfloor and insulation. We follow the ANSI/IICRC S520 Standard for Mold Remediation on every job and hold the TDLR Mold Remediation Contractor License for Texas. If you are searching for mold air quality testing San Marcos TX after a water event, we cover ZIP codes 78666, 78656, and 78667 with same-day and next-day appointments.
How mold inspection and testing runs in San Marcos
- • Blanco Vista
- • Downtown San Marcos
- • Sunset Oaks
- • La Cima
Recent work
Same-day mold inspection when you need it
We answer when you call
Mold does not wait, and neither do we. Our San Marcos team offers same-day and next-day appointments for mold inspection and testing in most cases, and we keep air sampling pumps, moisture meters, thermal cameras, and borescopes loaded on every truck. If you call before noon, there is a good chance we can be at your door the same afternoon. For real estate deadlines, we offer rush lab turnaround so you get results in 24 hours or less. Our on-call crew covers San Marcos and Hays County seven days a week, and we answer the phone after hours. When you book, we confirm a two-hour arrival window and call you when we are on the way. If you are searching for mold testing near me San Marcos and need answers fast, call 512-325-0105.
How our mold inspection process works
Phone intake
You call or book online and tell us what you are seeing or smelling - a stain, a musty odor, a recent leak, or a failed DIY test kit. We ask about the age of the home, recent water events, and whether anyone in the house has allergy symptoms. Takes about 10 minutes, and we schedule the visit, often same-day or next-day.
On-site assessment
A licensed assessor walks the property with a moisture meter, thermal imaging camera, and borescope. We check the attic, crawl space, HVAC closet, under sinks, around the water heater, and any area with a history of leaks. This visual and moisture phase usually takes 45 to 90 minutes depending on square footage and how many suspect areas you have.
Sample collection
We set up air sampling pumps for 5 to 10 minutes per location, typically one indoor sample per affected area plus one outdoor baseline. Surface samples come from visible growth using swabs or tape lifts. Every sample is labeled, logged, and shipped to an accredited lab. Most homes get 3 to 6 samples total.
Frequently asked questions
How much does mold inspection and testing cost in San Marcos TX?
Most residential mold inspection and testing in San Marcos TX runs $350 to $850 depending on square footage and how many samples we collect. A basic inspection with two air samples and one outdoor baseline sits at the low end. Larger homes, crawl spaces, or multiple suspect areas push the price up because each additional sample carries a lab fee. You get the full price before we start.
How long does mold testing take?
The on-site visit takes 45 to 90 minutes, and lab results come back in 24 to 48 hours. If you need same-day results for a real estate closing, tell us when you book and we will check rush availability with the lab. The written report usually reaches you within a few hours of the lab results.
Do I need mold inspection before remediation?
Yes, in almost every case. Remediation without testing is guesswork - you do not know which materials are affected or how far contamination spreads. A proper inspection gives the remediation crew a documented scope, and it gives your insurance adjuster the evidence needed to approve the claim. It also protects you from paying for work you do not need.
How do I know if I have mold in San Marcos?
The most common signs are a musty odor that will not go away, visible dark spots on drywall or ceiling tiles, warped baseboards, and allergy symptoms that ease when you leave the house. If you have had a leak, flood, or high humidity in the past year, testing is worth it even without visible growth. Air quality mold testing near me searches spike after every big storm for good reason.
Related services
Water Damage Restoration
When a leak or flood soaks your San Marcos home, water damage restoration dries the structure before mold can take hold. If growth has already started, we fold mold inspection and testing into the same visit so you get one report and one plan.
Emergency Water Removal
Standing water is a mold clock. Emergency water removal pulls it out fast, and we follow with moisture readings to confirm the structure is dry. If readings stay high after 48 hours, we recommend mold inspection and testing San Marcos TX before closing the job.
Book mold inspection and testing San Marcos TX today
If you have a musty odor, a recent leak, or a ceiling stain you cannot explain, do not wait for it to spread. Call San Marcos Water Restoration Pros at 512-325-0105 and we will schedule your inspection, often same-day or next-day. Lab-backed answers, honest recommendations, and a written report you can use.