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 estimateTrusted Mold Remediation for San Antonio Homeowners
Mold Remediation in San Antonio typically costs between $1,500 and $6,000 for a standard residential project, and most jobs in Bexar County are started within 24 to 48 hours of the initial call. We’re Tidemark Water Damage San Antonio, an independently owned and operated location of the Cedarwell Care Promise network, led by Rick Sumner. Since 2006, our IICRC, RIA, and IFA credentialed technicians have helped homeowners across Alamo Heights, Castle Hills, and Leon Valley get their homes back to clean and dry. If you’ve spotted discoloration on a wall, caught a musty smell that won’t leave, or had water damage in the last year, call (325) 230-0537 and a real person will answer, day or night.
We handle mold the way we’d want it handled in our own homes. That means a written price before any work starts, shoe covers at the door, drop cloths on the floor, and a photo of the clean-up before we leave. No drama, no pressure. Just an honest assessment and a careful plan.
Key Takeaways
- Written price first. You see the number before we touch anything, and that’s the number you pay.
- Same-week scheduling in most San Antonio neighborhoods. We answer live, 24/7, and dispatch quickly.
- Credentialed technicians. IICRC certified, background-checked, uniformed, and trained on Dri-Eaz, Phoenix, XPOWER, B-Air, and Injectidry equipment.
- 365-Day Done Right Promise. If the remediation isn’t done right, we make it right.
- Pet-safe products where a choice exists. Families with kids and animals should not have to choose between safety and speed.
Mold Removal Service
Mold Removal Service is the physical removal of visible mold growth from building materials, surfaces, and contents, followed by treatment to prevent regrowth. In San Antonio, the warm, humid climate from May through October means mold can establish itself quickly after a water event, a roof leak, or even a long-running air conditioning condensate drip. Tidemark Water Damage San Antonio provides mold removal service as part of a complete remediation plan, and most removal-only jobs in a single bathroom or closet run between $500 and $1,800, depending on the surface area and material type. We start every removal service with a written scope and a price you approve before the first tool comes off the truck.
Surface Removal and Content Cleaning
Hard surfaces like tile, glass, and sealed concrete can often be cleaned and treated rather than replaced. We use HEPA-filtered vacuums and EPA-registered antimicrobial treatments that are safe for homes with kids and pets when used as directed. Every item we move is documented, and we ask before touching anything personal.
Containment and Disposal
When mold is disturbed during removal, spores can spread to unaffected rooms. That’s why we set up containment barriers and negative air pressure before scraping or cutting begins. Removed materials are bagged, sealed, and disposed of according to San Antonio and Bexar County protocols, not tossed in the household trash bin.
Restoration work we handle
Mold Remediation Services
Mold Remediation Services cover the full scope of work from identifying the moisture source through removing contaminated materials, treating affected areas, and verifying the job is complete. It’s different from simple removal because it addresses why the mold grew in the first place, not just what you can see. In San Antonio, full mold remediation services for a typical single-room issue run between $1,500 and $4,000, while multi-room or crawl space projects often land between $4,000 and $10,000; see our Mold Remediation cost guide for more detail. Tidemark Water Damage San Antonio provides remediation services with a written price first and a 365-Day Done Right Promise behind every job.
Moisture Source Correction
If the water source isn’t fixed, the mold comes back. Maybe it’s a slow leak under a bathroom vanity, a pinhole pipe behind a wall in Terrell Hills, or condensation around a poorly insulated chase. Our technicians find the tide mark, the line water leaves on a wall, and dry past it. That’s the difference between remediation and repainting over a problem.
Post-Remediation Verification
After removal and treatment, we run drying equipment until moisture readings in the affected materials match the surrounding areas. We want the humidity and moisture percentages to be satisfyingly boring before we call it done. A photo of the finished clean-up is taken and shared before we leave, so you see exactly what was done and how it was left.
What happens when you call
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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.
Professional Mold Removal
Professional Mold Removal means hiring credentialed technicians who use containment, HEPA filtration, moisture measurement, and proper disposal methods, rather than attempting a DIY clean with bleach and a sponge. In San Antonio, where humidity and limestone slab construction can trap moisture in surprising places, professional removal is the difference between treatment and a recurring problem. Tidemark Water Damage San Antonio provides professional mold removal informed by IICRC standards and performed by RIA and IFA credentialed technicians. Most professional mold removal jobs in a single room run between $800 and $2,500, with full perimeter or crawl space work ranging higher.
HEPA Air Filtration During Work
Opening a moldy wall releases spores into the air even if you can’t see them. We run HEPA air scrubbers during the removal process to capture airborne particles before they settle into carpet, furniture, or ductwork. This matters if you’ve got kids crawling on floors or a dog that sniffs everything.
Why DIY Mold Removal Usually Falls Short
Bleach can discolor surface mold on non-porous material, but it doesn’t penetrate drywall, wood, or insulation where mold roots live. Worse, scrubbing without containment can spread spores into adjoining rooms. We’ve seen homeowners in Live Oak and Fair Oaks Ranch spend a weekend on a bathroom wall, only to have the musty smell return within a month.
Mold Inspection
Mold Inspection is a systematic assessment of a home to locate visible mold, identify moisture sources, and determine whether hidden growth exists behind walls, under flooring, or inside ductwork. In San Antonio, an inspection is often the right first step after a water event or before buying a home, and it costs between $250 and $600 depending on the property size and whether air or surface sampling is needed. Tidemark Water Damage San Antonio provides Mold Inspection & Testing as a standalone service and as part of every remediation project. We don’t inspect with a flashlight and a shrug; we use moisture meters, thermal imaging, and relative humidity readings to find what is wet that should not be.
Moisture Mapping and Thermal Imaging
Mold grows where water lingers, so the inspection starts by finding water that isn’t obvious. Thermal imaging can reveal temperature differences behind walls that suggest trapped moisture. Paired with pin-type and pinless moisture meters, we build a map of the wet areas before we ever open a wall. This protects your home from unnecessary demolition.
When Air and Surface Sampling Makes Sense
If you see mold, you usually don’t need a lab test to know it’s there. Sampling becomes useful when we need to confirm whether spores have spread beyond the visible area, or when a medical provider has asked for species identification. We can collect samples and coordinate with accredited labs, and we’ll explain what the results mean in plain English.
Mold Removal Specialist
A Mold Removal Specialist is a technician with specific training and field experience in identifying mold types, containing affected areas, safely removing contaminated materials, and treating surfaces to prevent recurrence. In San Antonio, hiring a specialist means the person doing the work holds credentials like IICRC Applied Microbial Remediation Technician and works to established industry standards. Tidemark Water Damage San Antonio employs mold removal specialists who are background-checked, uniformed, and trained on professional equipment from Dri-Eaz, Phoenix, and XPOWER. Specialist-led remediation for a standard San Antonio home project typically falls between $1,800 and $5,500.
What Sets a Specialist Apart
A specialist knows how to stage the work so it’s contained, sequenced properly, and documented. The sequence matters: contain, remove, treat, dry, and verify. Skipping the containment step or sanding a surface before it’s fully dry creates problems that show up months later. Our specialists follow that order on every job, from Floresville to Castle Hills.
Ongoing Training and Credential Maintenance
Credentialing isn’t a one-and-done event. Our specialists maintain IICRC certifications through continuing education, and our network shares field findings across locations. That means when a new product or technique proves itself, our San Antonio team learns about it from people who use it in real homes, not just from a spec sheet.
Black Mold Removal
Black Mold Removal refers to the removal of Stachybotrys chartarum and other dark-pigmented molds that can grow on chronically damp drywall, wood, or ceiling tiles. In San Antonio, black mold often appears after slow leaks, roof flashing failures, or repeated condensation events that went unnoticed for weeks. Black mold removal requires the same containment and removal discipline as any mold remediation, but homeowners should know that color alone is not a reliable indicator of toxicity. Tidemark Water Damage San Antonio provides black mold removal as part of complete remediation, with most single-room projects running between $1,500 and $4,500. We do not test your patience and we do not inflate the scope; we test the materials, treat what’s there, and give you a written price before any work starts.
Health and Safety Considerations
Some people react to black mold exposure with congestion, coughing, headaches, or skin irritation, while others notice nothing at all. If anyone in your household has asthma, allergies, or a compromised immune system, professional removal with proper containment matters more, not less. We can recommend an industrial hygienist if you need independent third-party verification before or after work.
Containment Protocols for Black Mold
Black mold removal in a home with kids and pets means we’re extra careful about containment barriers, shut-down HVAC zones, and HEPA air scrubbing. We tape off the work area, run negative air pressure, and change out of contaminated gear before stepping into clean parts of the house. The goal is that you never smell the work zone in the living room.
Mold Removal Contractor
A Mold Removal Contractor is a licensed, insured company that accepts responsibility for the full mold remediation project, from initial assessment through final verification. In San Antonio, hiring a contractor instead of a handyman means the work is covered by written scope documents, industry-standard protocols, and accountability if something isn’t right. Tidemark Water Damage San Antonio works as your mold removal contractor with one clear promise: a written price before any work starts, every time, with no exceptions. Typical contractor-led mold remediation in San Antonio homes runs from $2,000 to $7,000 depending on square footage, material type, and access.
Written Scope, Written Price, Written Promise
Every mold removal contractor’s reputation lives or dies by what happens when the unexpected shows up. We write down the scope, the price, and the plan before we begin. If we open a wall and find more widespread growth, we stop, show you what we found, and agree on any change before continuing. No surprise line items at the end.
Insurance Coordination and Documentation
If your mold issue began with a covered water loss, your homeowner’s insurance may contribute to the remediation cost. We document every step with photos and moisture readings, and we coordinate directly with adjusters when that’s helpful. You shouldn’t have to spend your evenings translating an estimate into insurance language; we handle that conversation.
Bathroom Mold Removal
Bathroom Mold Removal focuses on the single most common mold problem in San Antonio homes: mold on shower walls, ceilings, around toilet bases, and under vanities where plumbing drips. It’s usually the first place homeowners notice mold because it’s the room with the most consistent moisture and the least consistent ventilation. Tidemark Water Damage San Antonio provides bathroom mold removal for projects ranging from a simple ceiling treatment around $400 to $900, to full shower pan or subfloor remediation between $1,200 and $4,000. We’ve worked in bathrooms across Alamo Heights and Leon Valley where the exhaust fan vented into the attic instead of outside, and we fixed that too.
Surface Mold versus Subsurface Growth
Bathroom mold is often just on the surface: soap scum, skin cells, and condensation create a food source on paint and grout. But if water has penetrated behind tile, into drywall, or under vinyl flooring, the problem requires more than cleaning. Our technicians use moisture meters to tell the difference in minutes, so you don’t pay for demolition you don’t need.
Ventilation Correction and Prevention
The best bathroom mold removal is the kind you only do once. After we remove and treat the affected materials, we’ll check the exhaust fan, the ducting, and the condensation patterns. Upgrading an underpowered or improperly vented fan is often the difference between five years of clean walls and another call next spring. It’s usually a small addition to the scope and a big return in peace of mind.
See the difference
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AfterBrands We Service
Our San Antonio technicians work with professional-grade drying and remediation equipment from Dri-Eaz, including the Revolution LGR dehumidifier and HEPA air scrubbers. We’ve been running these machines in crawl spaces, attics, and finished basements across Bexar County for years, and we know their maintenance schedules and performance curves well enough to catch a filter issue before it slows the job. Whether the job calls for low-grain refrigerant drying or desiccant dehumidification, we’ll deploy the right tool.
We also run Injectidry systems for drying wall cavities and under-cabinet spaces without demolition, and XPOWER air movers when we need focused air speed in a tight space. For larger structural drying jobs, Phoenix and B-Air equipment gives us the capacity to handle full-room and multi-room projects in San Antonio’s summer humidity. Whether your home has a mold issue in one bathroom or a crawl space problem across the whole footprint, the equipment we bring is selected for the specific job, not whatever happens to be on the truck that day.
Signs You Need a Pro Right Now
- A musty smell that doesn’t go away. That odor is usually microbial volatile organic compounds, and it means mold is actively growing somewhere you may not see. If airing out the room and running a fan doesn’t change the smell within a day, you’re likely past the DIY stage.
- Visible discoloration on walls, ceilings, or baseboards. Black, green, gray, or even pink staining that spreads or returns after cleaning is a sign of a moisture source behind the surface. Paint covers it temporarily; it doesn’t fix the water that’s feeding it.
- Past water damage that was never professionally dried. A slab leak, an overflowing toilet, a roof leak, or a burst supply line can soak drywall and framing. If the area wasn’t dried with professional equipment within 48 hours, mold has had time to establish.
- Peeling paint or warped drywall in one isolated area. When drywall swells, softens, or the paint starts to bubble in a specific spot with no apparent cause, water is moving through or behind the material. That’s a mold invitation.
- Unexplained respiratory or allergy symptoms that ease when you leave home. If you or a family member notices congestion, coughing, or headaches that improve when you’re away from the house, hidden mold is worth investigating. It’s one of the most common reasons we get called for an inspection.
Our Process, Step by Step
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Assessment and moisture mapping. We start with the tide mark: the line water leaves on a wall, the stain on a ceiling, the condensation ring around a register. Moisture meters and thermal imaging help us map the full extent of the wet area without opening more walls than necessary. You get a written scope and a price before any work starts.
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Containment setup. We seal off the work area with plastic sheeting, run negative air pressure, and shut down affected HVAC zones to prevent spores from moving into clean rooms. Shoe covers go on at the door, and drop cloths cover the floor before the first piece of equipment comes in.
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Removal and treatment. Contaminated drywall, insulation, carpet pad, and trim are cut out, bagged, and removed from the home. Remaining structural surfaces are treated with EPA-registered antimicrobials and HEPA-vacuumed. We use pet-safe products where there is a choice, and we explain what’s being applied before it’s applied.
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Structural drying. Professional-grade Dri-Eaz and Phoenix dehumidifiers and XPOWER air movers run until moisture readings in the affected materials match the surrounding building envelope. In San Antonio’s humidity, this step matters more than in drier climates; incomplete drying is the single most common cause of recurring mold.
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Verification and clean-up. We re-test moisture levels, remove containment, and clean the work area thoroughly. A photo of the finished clean-up is taken and shared before the crew leaves, so you can see exactly what was done and how the space was left. The 365-Day Done Right Promise applies from that moment forward.
How Much Does Mold Remediation Cost in San Antonio?
A typical single-room mold remediation project in San Antonio runs between $1,200 and $3,500. A bathroom-only job with surface mold and minor drywall replacement often lands between $500 and $1,800. Full crawl space or multi-room remediation, the kind we see after slab leaks in older Terrell Hills homes or roof failures in Alamo Heights, commonly runs $4,000 to $10,000 or more. The variables that drive cost are square footage of affected material, whether structural framing needs treatment, accessibility of the space, and whether ductwork or HVAC components are involved.
What affects the price most directly is how far the moisture traveled and how long it sat. A small leak caught within days is usually a contained, inexpensive fix. A slow leak that’s been feeding mold for months means more demolition, more drying time, and more material disposal. That’s why we always say: get an inspection when you first suspect a problem, not when the wall starts crumbling.
How do you avoid overpaying? Hire a contractor who gives you a written price before work starts and doesn’t change it without written approval. Don’t pay for testing you don’t need; if you see mold, you don’t need a lab to confirm it’s there. And be wary of a scope that seems to demo more than the moisture map justifies. A mold removal contractor who uses moisture meters and thermal imaging can often save rooms that a less careful company would gut.
Every Tidemark estimate is free, and it includes the written scope, the equipment plan, and the full price. Call (325) 230-0537 and we’ll walk you through it. No pressure, no obligation.
Our Service Area Near San Antonio
We serve the full San Antonio metro and the surrounding communities, including Mold Remediation in Schertz and Mold Remediation in New Braunfels. We also regularly work in Fair Oaks Ranch, Live Oak, Floresville, Castle Hills, Leon Valley, Alamo Heights, Terrell Hills, Kirby, and Lackland AFB. Typical response time for an inspection or emergency assessment is same day or next morning, depending on your location and the time of day you call. A live person answers the phone 24/7 at (325) 230-0537.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Mold Remediation in San Antonio
Mold remediation is the complete process of finding and fixing the moisture source, containing the affected area, removing contaminated materials, treating surfaces, drying the space, and verifying the job is done. It’s different from simple mold removal because it addresses the water problem that caused the mold in the first place. In San Antonio, remediation often includes correcting ventilation, drainage, or plumbing issues so the mold doesn’t return. Call (325) 230-0537 for an assessment and a written plan.
Most single-room mold remediation projects in San Antonio are completed within 2 to 5 days, including drying time. Larger projects involving multiple rooms, crawl spaces, or HVAC systems can take 7 to 14 days. The drying phase is what takes the most time, and we won’t rush it, because incomplete drying is the number one reason mold returns. We’ll give you a clear timeline in the written scope before we start.
Single-room mold remediation typically costs between $1,200 and $3,500, bathroom-only jobs run $500 to $1,800, and multi-room or crawl space remediation often falls between $4,000 and $10,000. The main variables are how much material is affected, how far moisture traveled, and whether HVAC or structural framing is involved. We provide a free written estimate before any work begins, and that’s the price you pay. Call (325) 230-0537 to schedule an inspection.
Yes. Where there is a choice, we use EPA-registered antimicrobial treatments that are safe for homes with children and pets when used as directed. We’ll explain what’s being applied before we apply it, and we can adjust our product choices if anyone in the home has specific sensitivities. Shoe covers, containment, and careful clean-up are standard on every job.
Yes. Our live phone support is available 24 hours a day, 7 days a week, and you’ll always speak with a real person, not a voicemail. Emergency assessments and containment can often be scheduled the same day in most San Antonio neighborhoods. If you’ve got an active water leak feeding mold growth, call us right away at (325) 230-0537.
It’s our commitment that if the mold remediation work isn’t done right, we’ll come back and make it right within 365 days of project completion. It’s a written part of every mold remediation job we do in San Antonio. Most national franchises don’t offer anything close to that. We can because we’re independently owned and operated, and Rick Sumner’s name is on the work.
Clear the affected room of small items, valuables, and anything fragile, and keep pets and children out of the work area while containment is in place. Don’t try to clean or paint over the mold before we arrive; that can spread spores and complicate the assessment. We’ll handle the rest, including moving furniture with your permission and protecting floors before equipment comes in. Just be ready to point us to the water source if you know where it is.
Schedule Your Mold Remediation Service in San Antonio Today
If you’ve found mold, smelled mold, or just want an honest answer about what’s happening behind your walls, call us at (325) 230-0537. We’ll schedule a free, no-pressure assessment, give you a written price, and walk you through the plan before we start. Live support is available 24/7, and every job is covered by the 365-Day Done Right Promise. You’ll know the price, the timeline, and exactly how we’ll leave your home – clean, dry, and protected.
Written by Rick Sumner, Owner at Tidemark Water Damage San Antonio, serving San Antonio and surrounding communities since 2006.