Mold remediation
Water damage drying
Fire & smoke cleanup
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 $1,800 to $6,000 for a full-scope project, with crawl space treatment under pier-and-beam homes running $2,500 to $8,500 depending on structural drying needs. Most jobs take 3 to 7 days from containment to final clearance. You’ll get a written price before we touch a single tool. If you’re seeing mold on walls, smelling mustiness near baseboards, or noticing warped hardwood floors over a crawl space, call (325) 413-9949 and we’ll have a technician out to Alamo Heights the same day.
Why Wendell Restoration San Antonio Is Alamo Heights’s Preferred Mold Remediation Company
Alamo Heights homes aren’t like the slab-on-grade houses you see in newer parts of San Antonio. The 1920s through 1950s cottages along Argyle Avenue, Patterson Avenue, and the streets branching off Broadway were built on pier-and-beam foundations with original cast iron plumbing, plaster walls, and wood siding that hold moisture differently than modern construction. Our technicians know exactly what that means when mold shows up behind a bathroom wall or under a hallway floor. Blake Sorensen has built the team around this specific kind of work, and we answer every call with a live person, 24/7.
We’ve pulled mold out of crawl spaces under gumwood-trimmed bungalows, treated plaster walls in brick veneer homes off Arcadia, and dried out subfloors in houses near the Olmos Basin after flash floods. Every job includes our 365-Day Done Right Promise in writing and a free second visit if the repair fails. The price is set before we start, and a background-checked, uniformed technician shows up with a live arrival time you can track, not a four-hour window. That’s the standard for Mold Remediation work in this city.
Restoration work we handle
Bathroom Mold Removal in Alamo Heights
Bathroom mold removal in Alamo Heights usually starts around $600 for a contained removal on a single wall cavity, and runs $1,200 to $3,500 when original plaster, built-in cabinetry, or subfloor under older tile needs to be pulled out and rebuilt. The homes in this area weren’t framed with green board or moisture-resistant drywall. Half the bathrooms we treat were built before exhaust fans were standard, which means humidity has been soaking into plaster and wood framing for decades before the mold ever becomes visible.
What We Actually Do
We set up negative air containment so spores don’t spread into the hallway while we cut out affected material. If the mold extends behind original plaster on lath, we often have to remove a section carefully, treat the framing with an antimicrobial, and then match the wall texture and thickness. In older Alamo Heights bathrooms, that usually means a plaster skim coat rather than drywall, which is a detail slab-home crews miss.
Cost Drivers on Older Bathrooms
Galvanized supply lines behind 1930s and 1940s bathroom walls are frequently at the end of their service life. When we open a wall for mold and find corroded galvanized pipe, you’ll get a written scope for the optional replacement before we cut anything further. Built-in cabinetry and original tile work also change the approach. We pack out what can be saved and reuse it if it’s structurally sound, which keeps restoration costs down versus tearing everything to the studs.
Mold Removal Service in Alamo Heights
A full mold removal service in Alamo Heights typically runs $2,000 to $6,000, and the biggest variable is whether the source is a crawl space issue under a pier-and-beam foundation or a contained wall cavity above grade. Homes here sit on expansive clay soils that shift with drought and rain cycles. That movement cracks original cast iron drain lines, which leak slowly into the joist bays and subfloor for months before anyone sees mold on the surface. That’s the real reason so many Alamo Heights mold problems require structural drying plus removal, not just surface cleaning.
Moisture Mapping First
We use professional-grade meters to map moisture across the entire affected area, including the crawl space if you have one. The number we get tells us how far the rot extends and what the drying scope should be. IICRC protocol on a pier-and-beam Alamo Heights home means we treat the joists and subfloor as part of the remediation, not as an afterthought. If we skip that, the mold comes back even after the visible wall is cleaned.
Containment and Drying Standards
Our crews run Dri-Eaz dehumidifiers and air movers under full containment. We track daily moisture readings, not guesses. Once framing reaches dry standard, we apply an antimicrobial treatment and rebuild. You get before-and-after photo updates by text the entire time. That’s the Relay Standard: price in writing, a live arrival time, photos delivered to your phone, and a digital invoice you can pay from a link.
We were called to a 1930s pier-and-beam cottage off Argyle Avenue after a bathroom remodel revealed black mold behind original plaster walls. Our techs set up containment and used a Dri-Eaz dehumidifier plus air movers while moisture readings showed the crawl space held 28% moisture in the floor joists from a hairline crack in the cast iron drain line. We performed pack-out of the affected built-in cabinetry, cut out the rotted subfloor, and treated the framing with an antimicrobial before rebuilding to pre-loss condition, all without disturbing the home’s original gumwood trim.
Trusted Brands We Service in Alamo Heights
We deploy equipment from Injectidry, Dri-Eaz, Phoenix, XPOWER, and B-Air, and our work follows IICRC, RIA, and IFA standards. That matters in Alamo Heights because drying a 1950s pier-and-beam home is not the same as drying a 2005 slab house. We stock the mats, dehumidifiers, and air movers needed for low-clearance crawl spaces, so we don’t wait on equipment rental or out-of-town parts when a job starts. The same brands used on commercial loss sites run in your living room.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Alamo Heights Homes
- Hidden cast iron drain line cracks. Expansive clay soil shifts the piers under these older homes, and hairline cracks in the original cast iron drains leak into joist bays for months. By the time mold shows on a wall or floor, the structural drying scope is often twofold: dry the subfloor and treat the framing, plus fix the pipe.
- Unventilated crawl spaces after Olmos Basin floods. When the Olmos Basin overflows during a heavy rain, water sits under pier-and-beam homes with nowhere to go. DIY attempts at drying skip containment entirely, and the spores spread from the crawl space into the living areas through floor gaps and old HVAC returns.
- Plaster walls hiding mold behind paint and wallpaper. Older Alamo Heights homes have multiple layers of paint and wallpaper over original plaster. Mold can grow in the plaster’s gypsum core for months behind those layers. You won’t see it until it bleeds through or a remodel pulls the wall open.
- Galvanized pipes bursting during freeze events. Freeze events are rare in this part of Texas, but when they hit, uninsulated galvanized supply lines in crawl spaces go first. That water saturates plaster walls, and plaster holds moisture far longer than drywall, creating the perfect environment for mold behind the surface.
Pricing for Mold Remediation in Alamo Heights, TX
Here’s what you can expect to pay for mold work in Alamo Heights:
- Bathroom mold removal (contained): $600 to $2,500 depending on whether original plaster or tile is involved
- Full mold removal service (1-2 rooms): $2,000 to $4,500 with containment and drying
- Crawl space mold treatment under pier-and-beam: $2,500 to $8,500, with structural drying of joists and subfloor as the main cost driver
- Whole-home mold remediation with pack-out: $6,000 to $15,000+, depending on square footage and contents handling
The biggest cost variable in Alamo Heights is whether the mold source is a plumbing leak under the house or a contained wall cavity. Cast iron drain line replacement adds $1,500 to $4,000 on top of the mold scope if the pipe itself is the problem. You’ll get the full written price before any work starts, and the number on your invoice is the number you pay. Call (325) 413-9949 for a free estimate.
We Also Serve Cities Near Alamo Heights
Wendell Restoration San Antonio handles mold work throughout the surrounding area, including Alamo Heights, San Antonio, Windcrest, Helotes, and Cibolo. Dispatch and scheduling are coordinated from our San Antonio office, and crews serve Alamo Heights locally. If you’re in a neighboring city and dealing with mold, the same written-price 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
In almost every case, the mold source wasn’t the wall you cleaned. It’s moisture in the crawl space, usually from a cracked cast iron drain line or trapped humidity under the house. If you don’t map the moisture across the joists and subfloor, you’re treating the symptom. We find the source and fix it before we close the wall. Call (325) 413-9949 and we’ll inspect the full structure, not just the visible stain.
Plaster can often be saved if the mold is on the surface and the lath is intact. If the gypsum core is saturated and crumbling, we cut out the affected section and rebuild to match the original thickness and texture. In Alamo Heights, that usually means a lime-based plaster skim coat rather than drywall. We’ll show you exactly what we’re cutting and why before the saw comes out.
For contained single-room jobs, no. You can usually stay in the house while we run negative air and HEPA filtration. For whole-home remediation, especially when we’re packing out contents or treating a large crawl space, you’ll likely want to relocate for 3 to 7 days. We’ll tell you the day-based timeline upfront, in writing, before we start.
We work from the crawl space whenever possible. The subfloor can be treated from underneath, and the joists dried with Injectidry mats and air movers positioned below the floor. We only cut out hardwood when rot has compromised the boards themselves. The goal in Alamo Heights is always to preserve what’s original, and the written scope will show what’s salvageable versus what has to come out.
Most jobs run 3 to 7 days from setup to final clearance. A single bathroom takes 2 to 3 days. A crawl space job with structural drying runs 5 to 7 days because moisture readings have to hit dry standard before we rebuild. You’ll get daily photo updates, so you can see the progress without guessing. Call (325) 413-9949 for an exact timeline based on your house.
Written by Blake Sorensen, Owner at Wendell Restoration San Antonio, serving Alamo Heights and the surrounding area.