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 Alamo Heights
Mold remediation in Alamo Heights typically costs between $1,800 and $6,500 depending on how far moisture has traveled through plaster walls, crawlspaces, and original wood framing. Most jobs in the 78209 zip code can be assessed within 24 hours, with containment and drying equipment staged the same day. If you’ve spotted discoloration on a wall, caught a musty smell near original wood casement windows, or had water enter during a Flash Flood Alley storm, call (325) 230-0537 and a live person will answer. We know these homes. We know what hides behind lime plaster and under pier-and-beam floors.
Alamo Heights isn’t a suburb of generic drywall boxes. It’s a city of 1920s Craftsman bungalows, 1930s Spanish Colonial Revivals, and mid-century limestone ranches, each with construction details that demand a different approach to drying and mold removal. The Mold Remediation team at Tidemark Water Damage San Antonio works with those details instead of against them.
Why Tidemark Water Damage San Antonio Is Alamo Heights’s Preferred Mold Remediation Company
We’re independently owned and operated, working to the Cedarwell Care Promise, and led by Rick Sumner. That means the crew that shows up at your Alamo Heights home answers to one standard: written price before any work starts, pet-safe products where there is a choice, and a 365-Day Done Right Promise that stays in effect long after the equipment is loaded back on the truck.
Our technicians are IICRC-, RIA-, and IFA-credentialed, background-checked, and uniformed. Shoe covers go on at the door. Drop cloths cover the floor before the first piece of equipment comes in. We ask before we move furniture or remove a section of baseboard. For families with kids and pets, we run lower-decibel settings during nap time and school hours, and we tell you exactly which products we’re using and why they’re safe for the rooms your children sleep in.
Call volume in Alamo Heights spikes after those intense spring and fall thunderstorm cells roll through. When that happens, we stage response crews out of the San Antonio office so Alamo Heights homes get assessed fast, not added to a queue behind a dozen other zip codes. Dispatch coordinates locally. The crew that arrives understands the difference between a 1940s limestone exterior that looks dry and the wet crawlspace underneath it.
We also photograph the clean-up before the crew leaves. You’ll see exactly what was remediated, what was protected, and how the room was left.
Restoration work we handle






Black Mold Removal in Alamo Heights
Black Mold Removal in Alamo Heights often means addressing stachybotrys growth that started in a pier-and-beam crawlspace or behind original wood trim and spread upward through wall cavities. These homes were built without modern vapor barriers, so a thunderstorm that drops three inches in an hour can saturate the soil under the house. That moisture wicks into joists, subfloor, and eventually into the plaster walls themselves.
Most black mold removal jobs in Alamo Heights run between $2,200 and $5,800. The range depends on square footage of affected material, whether the crawlspace needs full antimicrobial treatment, and whether original plaster can be saved or must be carefully cut back. You see that number in writing before any work begins.
Containment and Air Scrubbing
We set up physical containment with negative air pressure so spores don’t migrate into clean rooms while we work. HEPA air scrubbers from B-Air run continuously during removal. For homes with central HVAC, we seal return registers and, where needed, clean duct runs that pass through affected areas.
Safe Disposal of Contaminated Material
Moldy drywall, insulation, and trim are bagged inside the containment area and carried out through the nearest exterior door, not through your living room. We protect the path with floor covering and wipe down exit routes before the final photo is taken.
Mold Removal Contractor in Alamo Heights
Choosing a Mold Removal Contractor in Alamo Heights means finding someone who knows the difference between drying a modern drywall cavity and drying a 1930s lath-and-plaster wall. Standard dehumidification can crumble lime plaster. Aggressive demolition destroys historic finishes that cannot be matched at any price. Our approach is slower and more deliberate, and that protects the character of your home while eliminating the mold.
General mold removal in Alamo Heights runs $1,800 to $4,500 for contained areas like a single room, closet, or crawlspace section. Larger multi-room jobs with structural drying range higher. Every job includes a written scope, moisture mapping, and a clear explanation of what gets removed, what gets dried in place, and what gets treated with antimicrobial products.
Moisture Mapping Before Demolition
We map moisture in walls, floors, and subfloor framing before we cut anything. Thermal imaging and penetrating moisture meters from professional-grade equipment show us where water actually traveled. That means we remove only what’s necessary and dry the rest in place.
Structural Drying With Injectidry
For original wood casement windows, built-up trim, and wall cavities, our technicians often use Injectidry systems to pull moisture from inside walls and under floors without tearing them apart. It’s slower than demolition, but it’s the only way to save original millwork and plaster that defines an Alamo Heights home.
Trusted Brands We Service in Alamo Heights
Our crews service all residential mold and water-damage situations regardless of the equipment brand originally installed or the building materials involved. We work with professional-grade drying and remediation equipment from Dri-Eaz, Phoenix, XPOWER, B-Air, and Injectidry. That matters because restoration in older Alamo Heights homes requires precision control, not brute-force airflow. Local parts and supplies are staged through the San Antonio office, which keeps turnaround on containment supplies, HEPA filters, and antimicrobial treatments fast for Alamo Heights homeowners.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Alamo Heights Homes
- Hidden moisture behind lime plaster: Original plaster wicks water vertically. We regularly find mold colonies 3 to 4 feet above the visible water line in Alamo Heights homes. Surface cleaning alone never fixes this.
- Wet pier-and-beam crawlspaces after Flash Flood Alley storms: Stone exteriors shed rain, but the ground underneath the house stays saturated. Without targeted drying of the under-floor cavity, joist mold returns within weeks.
- Original wood windows that trap condensation: Single-pane casement windows in Craftsman and Spanish Colonial Revival homes sweat during humid San Antonio summers. Moisture settles into sash pockets and trim, feeding slow mold growth that homeowners often miss until the smell appears.
- Mismatched repairs by previous contractors: We see drywall patches where lime plaster used to be. The patch cracks, moisture finds the seam, and mold blooms behind the repair. Matching historic materials matters for both appearance and durability.
Pricing for Mold Remediation in Alamo Heights, TX
Expect mold inspection and testing in Alamo Heights to run $350 – $700 depending on the number of air and surface samples. Crawl space treatment after a flood typically costs $1,500 – $3,200. Full black mold removal with containment in a 1930s home averages $3,800 – $5,800 when the plaster can be saved, and more if the crawlspace and wall cavities both require treatment. Air quality restoration, including HEPA scrubbing and duct cleaning, adds $700 – $1,400 for a standard single-story home. Rick Sumner approves every written scope that leaves the office. There’s no pressure line and no surprise on the final invoice. The price you see is the price you pay.
We Also Serve Cities Near Alamo Heights
Tidemark serves Alamo Heights and the surrounding communities, including San Antonio, Schertz, New Braunfels, and Fair Oaks Ranch. If you’re in one of those areas and dealing with mold after a storm or a slow plumbing leak, the same written-price-first standard applies.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
We use Injectidry panel drying systems that pull moisture through small access points without removing the plaster face. Antimicrobial treatment is applied in the wall cavity, not just on the visible surface. This method preserves the lath and the historic finish while still addressing the moisture that feeds mold. Call (325) 230-0537 if you suspect hidden mold in original plaster walls.
Yes. The crawlspace is almost always the source of ongoing mold problems in these homes because the soil stays wet long after the living space looks dry. We treat it as a separate zone with its own containment, dehumidification, and antimicrobial application. Skipping this step is the most common reason mold returns in Alamo Heights homes.
No. Wiping visible mold off the surface does nothing for spores embedded in the wood grain or moisture trapped in sash pockets and trim joints. Within 48 hours in Alamo Heights humidity, the colony re-establishes. Structural drying with targeted airflow and dehumidification is the only way to actually stop the growth cycle.
Black mold removal focuses on stachybotrys colonies that often start in crawlspaces or behind trim and requires full containment, HEPA air scrubbing, and careful disposal of contaminated materials. General mold remediation covers broader fungal growth, including surface mold on plaster, wood, and drywall. Both jobs start with moisture mapping and end with a written scope and a photo of the finished clean-up.
Not if it’s done right. We dry in place wherever possible using Injectidry and controlled dehumidification. When material must be removed, we cut clean lines, save original trim where salvageable, and match historic plaster rather than patching with modern drywall. The goal is to leave the house looking like it did before the water, minus the mold. Call (325) 230-0537 for a free estimate on mold remediation in Alamo Heights.
Written by Rick Sumner, Owner at Tidemark Water Damage San Antonio, serving Alamo Heights and surrounding communities with written-price-first mold remediation since 2006.