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 typically costs between $1,800 and $6,500 depending on how far the water traveled and whether the slab needs to be opened. Most Kirby jobs we handle are completed within three to five days from initial assessment to final clearance. If you’re smelling musty air near the center of your home or seeing dark staining climbing your baseboards, call (325) 230-0537. We answer live, 24/7, and we’ll have a credentialed technician at your door fast.
Kirby homes have a specific failure pattern we know well. The older brick ranchers and frame houses built between the 1950s and 1980s sit on expansive clay soil that shifts with every wet-dry cycle. That movement cracks the original cast-iron drain lines under the slab. When those pipes split, grey water or sewage wicks up into the drywall and stud cavities, and mold follows within 24 to 48 hours. You need a team that starts by finding the water source, not just bleaching the stain you can see.
Why Tidemark Water Damage San Antonio Is Kirby’s Preferred Mold Remediation Company
We’re independently owned and operated, working to the Cedarwell Care Promise. That means a written price lands in your hand before any work starts. No open-ended invoices, no mid-job “discovery fees.” Our Kirby customers know that shoe covers go on at the door, drop cloths cover the floor before the first piece of equipment comes in, and a photo of the clean-up is shared with you before our crew leaves.
Our technicians are background-checked, uniformed, and credentialed through IICRC, RIA, and IFA. They run professional-grade drying equipment from Dri-Eaz and Phoenix. Rick Sumner leads our team with a simple standard: find the tide mark, dry past it, and verify nothing is left behind that could bloom again weeks later. We’ve worked on enough Kirby slabs to know that what looks like a wall stain is often a symptom of something moving under the foundation.
Response time to Kirby neighborhoods, whether you’re near Ackerman Road, Binz-Engleman, or one of the quieter streets off FM 78, is measured in hours, not days. We dispatch from our San Antonio office and crews reach Kirby quickly. When you call, a live person answers. Always.
Restoration work we handle
Mold Removal Service in Kirby
Mold Removal Service in Kirby begins with finding the water that’s feeding the colony. In a 1960s slab home, that usually means looking under the house, not just at the wall. We remove mold by containing the affected area, cutting out contaminated drywall and insulation, treating the framing, and drying the structure until moisture meters read normal. A typical mold removal job in a Kirby single-story home runs $1,800 to $4,200, depending on how many rooms are involved and whether the slab needs demolition.
Containment and Demolition
Before we open a wall, we seal the room with negative air pressure. That matters in Kirby’s small, single-story floor plans, where an open door between rooms lets spores travel through the whole house in minutes. We ask before we move furniture, and anything we do move gets covered and protected.
Cleaning and Antimicrobial Treatment
After the contaminated material is removed, we treat the framing and any salvageable surfaces with antimicrobial products that are safe for homes with children and pets. Where there’s a choice, we use pet-safe cleaning agents. The goal is not just to kill what’s visible, but to leave the stud cavities dry enough that mold cannot recolonize.
Mold Remediation Services in Kirby
Mold Remediation Services in Kirby go beyond surface cleaning. Remediation means resolving the moisture problem that started the mold and restoring the home so it stays mold-free. That often involves coordinating with a plumber to repair a broken cast-iron line before we rebuild, because treating drywall while sewage still seeps under the slab is just buying time. Full remediation in Kirby typically runs $3,500 to $6,500 when slab access and HVAC cleaning are required.
Post-Remediation Verification
We don’t call a Kirby job done until we’ve taken moisture readings from the same areas that were wet, including sub-slab readings where the water originated. Clay soil can re-saturate after a heavy downpour. A dry surface over a wet substrate means the mold comes back, and we won’t write a clearance for that.
Rebuild and Finish
Once moisture readings are normal, we replace drywall, insulation, and trim to match the existing home. Many Kirby homes have original 1960s textures and trims, so we match what was there. The written price you approved includes the rebuild scope, so you know the finish line before we start pulling drywall.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Kirby
Our Kirby crews work with equipment and products homeowners recognize. We run Dri-Eaz LGR dehumidifiers and Phoenix air movers on most drying jobs. We’re credentialed through RIA and IFA, and our technicians train on current remediation standards. Because we stock common parts and supplies for Kirby’s older housing stock, we can start work the same day rather than waiting on shipments from out of state.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Kirby Homes
- Cast-iron drain lines cracked by shifting clay. Kirby’s expansive soil swells when wet and shrinks when dry, and after 50 plus years of that cycle, the original cast-iron pipes under a slab eventually split. That leak is the hidden water source behind most interior mold in this area.
- Moisture trapped in slab-on-grade construction. Unlike pier-and-beam homes, a Kirby slab house has no crawl space to ventilate. When water vapor rises through the concrete, it can condense inside wall cavities and feed mold for months before you see any staining.
- HVAC duct contamination from open demolition. Running air movers without proper containment in a small Kirby home spreads spores through the ductwork fast. We seal the work area and turn off the HVAC until the contaminated material is removed and the air is scrubbed.
- High humidity after summer storms. Kirby’s hot, humid summers slow structural drying. That’s why we use desiccant and LGR dehumidifiers and why we monitor moisture daily until readings stabilize, not just until the wall looks dry.
Pricing for Mold Remediation in Kirby, TX
You’ll see your written price before we start. A typical mold removal job in Kirby runs $1,800 to $4,200. Full remediation with slab access, drain line repair coordination, and rebuild work lands between $3,500 and $6,500. What moves the number: how many rooms are affected, whether the slab needs cutting, whether the HVAC needs cleaning, and how much drywall we remove. You’ll never see an addendum asking for more after the fact. Call (325) 230-0537 for a free estimate with real numbers, not a vague range.
We Also Serve Cities Near Kirby
Tidemark Water Damage San Antonio handles mold remediation across the northeast San Antonio corridor. If you’re in Kirby or any surrounding community, the same Mold Remediation standards apply: written price first, credentialed technicians, and the 365-Day Done Right Promise after every job. We serve San Antonio, Schertz, New Braunfels, and Fair Oaks Ranch.
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
Mold can begin colonizing within 24 to 48 hours of a cast-iron line leaking under your Kirby slab, especially in the warm, humid conditions common here. The water wicks up through the drywall and into the stud cavity, and by the time you smell musty air, the colony is usually well established. Call us at (325) 230-0537 as soon as you suspect a leak.
Yes. Kirby’s expansive clay soil shifts with seasonal moisture changes, cracking the cast-iron drain lines that run under 1950s to 70s slab homes. That means our remediation work here almost always starts with finding a hidden plumbing break, not just treating wall mold. If the pipe isn’t repaired, any mold removal we do will be temporary.
Most broken cast-iron lines under Kirby homes are sanitary drains, meaning they carry grey or black water, not clean water. That’s category 3 water, and it requires full containment, removal of contaminated materials, and antimicrobial treatment. We treat any interior slab leak in Kirby as potentially hazardous until testing confirms otherwise.
Because the water source is under the slab, we often need to open a section of concrete to reach the broken pipe and dry the sub-slab area properly. A surface treatment alone leaves moisture trapped under the foundation, and that moisture re-saturates the wall after a heavy rain. We coordinate the plumbing repair and the structural drying so the job is done in one pass.
We take moisture readings from the stud cavities, the drywall, and the sub-slab area where the water originated, and we compare them to pre-loss conditions. When readings return to normal and stay stable after a rain event, we issue clearance. Every Kirby job is backed by the 365-Day Done Right Promise, so if mold comes back, we make it right.
If you’re dealing with mold in a Kirby home, don’t wait for the staining to spread. Call (325) 230-0537 and speak with a live person who can walk you through what happens next. We’ll give you a written price before any work starts.
Written by Rick Sumner, Owner at Tidemark Water Damage San Antonio, serving Kirby and the surrounding communities since 2006.