Water damage drying
Fire & smoke cleanup
Mold remediation
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 Kirby
Mold remediation in Kirby, TX usually runs between $1,800 and $6,500 for a contained removal job, with inspections starting around $295. We know Kirby’s homes better than most because we work them every week: 1950s brick ranches off Ackerman Road, modest frame houses near Old Seguin Road, and slab-on-grade builds east of FM 78 where old cast-iron plumbing quietly fails. Our crews reach any Kirby address in under 45 minutes, and a live person answers the phone 24/7 at (325) 252-3917. The climate here, with its clay-heavy soil and stormwater runoff patterns, creates specific mold problems that generic remediation checklists never address.
Why Marsh Water Damage San Antonio Is Kirby’s Preferred Mold Remediation Company
Kirby homeowners call us because we show up with a name and a face before the knock. Every technician is background-checked, identity-verified, and sent to you by photo before the visit, then shows a photo ID badge at the door. That’s the Threshold Verified standard, and it’s printed on every work order we write in Kirby.
Our crews have handled mold in more Kirby ranch homes than we can count, and the pattern is almost always the same: a slow slab leak or a drainage easement issue that let moisture sit behind drywall for weeks before anyone noticed. We know what to look for in this city’s specific housing stock. We also know that Kirby homeowners want a straight answer about scope and cost before we cut into anything, so you get a written price before any work starts. No exceptions. Tobias Reyner, who leads our team, set that rule in 2005 and it hasn’t changed since.
Restoration work we handle
Professional Mold Removal in Kirby
Professional Mold Removal in Kirby is what you need when visible mold covers more than about ten square feet, when it’s growing behind walls or under flooring, or when a recurring musty smell tells you something is living in a wall cavity. The process involves containment (sealing off the affected area), negative air pressure to keep spores from spreading, removing contaminated drywall and insulation, sanding and treating wood framing, and running commercial drying equipment until moisture readings match the dry standard for that specific wall assembly. Most residential removals in Kirby run $2,200 to $5,800 depending on how many rooms are involved.
Containment and Air Filtration
We set up containment barriers and run HEPA-filtered air scrubbers before any demolition starts. This keeps mold spores from drifting into your kitchen, bedrooms, and HVAC system during the removal. In Kirby’s smaller ranch homes, containment is especially important because the living spaces are close together and a single contaminated wall can affect the whole footprint.
Removal and Structural Drying
We pull wet, mold-affected drywall and insulation, then dry the framing with Dri-Eaz dehumidifiers and air movers. The goal is simple: get the wood dry enough that mold can’t return, then rebuild. If the moisture source was a slab leak, which is common in Kirby homes from the 1950s and 1960s, that plumbing issue has to be fixed before we close the wall back up. We don’t do plumbing repairs ourselves, but we’ll tell you exactly what we found and coordinate with your plumber so the job gets done in the right order.
Mold Inspection in Kirby
Mold Inspection in Kirby starts at $295 and includes a visual assessment of the entire home, moisture readings in walls and floors, and air or surface sampling when needed. Most Kirby homeowners call us for an inspection when they smell something musty but can’t see mold, when they’ve had a water leak or roof damage, or when they’re buying or selling a home in the area. Our inspectors know what this city’s older homes hide: mold behind original wood paneling, in wall cavities fed by slow slab leaks, and under carpets in rooms far from the first visible stain.
Moisture Mapping
We use moisture meters and thermal imaging to find damp areas inside walls and under slabs before we recommend any demolition. This matters in Kirby because the clay-rich soil expands and contracts with every wet-dry cycle, cracking original cast-iron and galvanized pipes and sending moisture into places you’d never suspect. A moisture map tells us where the water is, not just where the mold is.
Air Quality Testing
Air sampling tells us whether mold spores are circulating through your home’s air, even if the colony itself is hidden. We take an outdoor baseline sample and compare it to indoor levels. If indoor spore counts are significantly higher, you have an active colony somewhere. This is standard practice for our Mold Remediation work in Kirby, and we’ll walk you through the lab results line by line.
Trusted Brands We Service in Kirby
Our Kirby customers get the same professional restoration equipment that large commercial contractors use: Dri-Eaz dehumidifiers and air movers, Phoenix axial fans, and XPOWER air scrubbers. We stock replacement filters, containment sheeting, and HEPA cartridges for these brands at our San Antonio supply hub, so parts for your Kirby job don’t wait on a freight truck. If you’ve had mold remediation done before with borrowed or undersized equipment, upgrading to a proper Dri-Eaz or Phoenix drying setup makes a measurable difference in how fast your home dries and how completely the mold is removed.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Kirby Homes
- Slow slab leaks that hide for weeks. Cast-iron drain lines under 1950s and 1960s slab foundations corrode from the inside out, leaking small amounts of water into the soil and wall cavities. By the time you see a stain or smell something, mold has usually been growing behind drywall for weeks.
- Military-era drainage easements that misdirect runoff. Homes built near the old Kelly AFB boundary, especially on the east side of Kirby, often have drainage easements from original military construction that don’t follow modern subdivision logic. Stormwater gets channeled under foundations into rooms far from any visible water source.
- Clay soil movement cracking original pipes. Kirby sits on expansive clay that swells when wet and shrinks when dry. That movement cracks rigid cast-iron and galvanized plumbing, creating recurrent moisture problems that return mold even after a surface cleaning.
- Mold behind original wood paneling. Many Kirby homes still have the original 1960s wood paneling on living room and den walls. Panel trap moisture against the drywall behind them, and mold can bloom there without any musty smell reaching the room for months.
Pricing for Mold Remediation in Kirby, TX
We Also Serve Cities Near Kirby
While this page focuses on Mold Remediation in Kirby, our crews also work in San Antonio, Selma, Boerne, and Converse. If you live just outside Kirby in one of those cities, the same Threshold Verified technicians and written-pricing guarantees apply. Call the same number, get the same standard.
Serving Kirby, TX - Our Local Coverage Area
We’re based in the Kirby 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 Kirby
Because Salatrillo Creek’s floodplain backs up into older Kirby neighborhoods during intense downpours, and that water can enter homes through foundation cracks, weep holes, and drainage easements without ever showing a visible stain on the floor. The first sign of a problem is often a musty smell or increased humidity in a room that used to feel dry. After any heavy rain event, a $295 inspection is far cheaper than a $5,000 remediation six months later. Call (325) 252-3917 and we’ll schedule one the same week.
We identify the moisture source before we touch the mold. In a 1950s Kirby home, that almost always means checking for corroded galvanized supply lines or failed cast-iron drains inside the slab. If the pipe is still leaking, any mold removal we do will be temporary. We’ll find the leak, tell you what plumbing work is needed, and schedule our remediation after your plumber finishes the repair. That sequencing matters, and we won’t skip it to make a quick sale.
Category 2, or gray water, is the most common classification for slab leaks because the water has been sitting in soil and cast-iron drain lines before it seeps into your walls. That means the affected materials aren’t just wet, they’re contaminated, and they need to be removed and replaced, not just dried. A slower leak that has been festering for weeks often supports mold growth on top of the water damage itself.
Yes, and we see it in Kirby more than almost anywhere else. Original wood paneling acts as a vapor barrier, trapping moisture and mold spores behind it. The mold can colonize the drywall and framing for months before any smell penetrates the panel face. By the time you notice it, you’re typically looking at a multi-panel removal, not a small patch job. If your home still has original paneling from the 1960s, an inspection after any plumbing repair is worth the cost.
Yes. Homes on Kirby’s east side near the old Kelly AFB boundary have drainage patterns that don’t follow modern residential engineering. We pay extra attention to the foundation perimeter, the grade of the soil against the slab, and any easement lines that cross the property before we determine where water is entering. A standard remediation approach that ignores easement flow will miss the source, and the mold will come back. Our team has worked enough of these Kirby homes to know where to look first.
In a 1960s ranch off Ackerman Road, our crew found mold blooming behind original wood paneling after a cast-iron drain line under the slab finally gave out. We set containment, pulled wet drywall, and ran Dri-Eaz dehumidifiers plus air movers for four days until moisture readings matched the dry standard for that wall assembly. That’s the kind of job we do regularly in Kirby, and it’s the reason we write the scope and price before we touch a single wall.
Written by Tobias Reyner, Owner at Marsh Water Damage San Antonio, serving Kirby and surrounding communities since 2005.