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 Universal City
Mold remediation in Universal City usually runs between $1,500 and $5,500 for a typical contained removal, and most jobs can be started within one to three days of your call. If you’ve found black staining along a wall, smelled something musty in a back bedroom, or had water push up through a floor drain during a storm near Cibolo Creek, we can send a Threshold Verified technician to your home. Call (325) 252-3917 and a live person answers, day or night.
We know Universal City’s streets, and we know what the clay soil under your pier-and-beam foundation does when a fast-moving storm drops three inches in an hour. Our Mold Remediation team works on the older ranch homes east of Pat Booker Road every week, along with the split-levels off Kitty Hawk and the neighborhoods around Olympia Elementary. You’ll get a written price before any work starts, not after we cut drywall.
Why Marsh Water Damage San Antonio Is Universal City’s Preferred Mold Remediation Company
Marsh Water Damage Restoration has been restoring homes since 2005 as part of the Threshold Group family, and our San Antonio office dispatches crews into Universal City daily. Every technician who arrives at your door is background-checked, identity-verified, and sent to you by name and photo before the visit. That’s the Threshold Verified standard, and it applies to every single job, not just the big ones.
Homeowners here tell us the same thing: the water was already stressful, and then a stranger showed up with a truck and a clipboard. We remove that second fear. You’ll know who’s coming. They’ll show a photo ID badge at the door. Tobias Reyner, who leads our team, sets the standard that every Universal City job follows: written scope, written price, and a 365-Day Done Right Promise printed on the work order. If something isn’t right within a full year, we make it right, including a free second visit. No argument, no fine print.
Restoration work we handle






Mold Inspection in Universal City
A mold inspection in Universal City typically costs $350 to $600 when moisture mapping and air sampling are both needed, and it’s the step that stops recurring mold from coming back. On older streets east of Pat Booker Road, Universal City’s storm sewer system ties into aging clay tile lines that were never fully upgraded for current runoff volumes, so during heavy rain, water can push up through original floor drains. This backs contaminated water into pier-and-beam crawl spaces, creating hidden mold reservoirs that standard inspections miss. Our inspectors use moisture meters and thermal imaging to find what a visual walk-through never will.
Moisture Mapping Under Pier-and-Beam Homes
We check the crawl space first in Universal City because that’s where mold hides in homes built on clay soil. Cibolo Creek flooding and storm-drain backups saturate the ground, and that moisture wicks upward through the subfloor. Readings above 20% wood moisture equivalent almost always mean mold is already active, even if you can’t see it.
Air Sampling and Lab Analysis
When you have a musty smell but no visible staining, we collect air samples from the living space, the suspected source area, and one outdoor control. The lab reports spore types and concentrations, and we walk you through the results in plain English. You’ll know exactly what’s growing and where it’s coming from before any remediation quote is written.
Mold Removal Specialist in Universal City
Hiring a mold removal specialist in Universal City for a contained remediation job runs $1,800 to $5,200 for most single-room projects, and larger multi-room jobs on slab foundations can reach $7,500. A specialist matters because removing visible mold without fixing the moisture source means it returns in weeks. The expansive clay soil under Universal City homes holds water long after the surface looks dry, so our approach always starts with stopping the moisture, then containing and removing the mold, then drying the structure to pre-loss condition.
Containment and Source Repair
We set up negative air pressure and physical barriers before cutting into any wall cavity that shows mold. This keeps spores from spreading into your living room during the removal. On pier-and-beam homes, we also inspect the crawl space and repair the source, whether that’s a slab leak, a backed-up clay tile drain line, or a failed sump pump near Cibolo Creek.
One-Trip Remediation for Large-Acreage Properties
Universal City has real acreage lots, detached workshops, and oversized outbuildings, and you don’t want a crew making four trips to finish one job. We bring enough equipment on the first truck to handle the full scope: commercial-grade XPOWER air movers, Dri-Eaz dehumidifiers, HEPA vacuums, and antimicrobial treatment in one mobilization. On a 1960s ranch off Pat Booker Road, our mold inspection found elevated moisture readings behind baseboards after a slab leak. We set up containment, ran XPOWER air movers and a Dri-Eaz dehumidifier, and removed saturated drywall that had wicked moisture from the clay soil. Because the homeowner needed it done in one trip, we completed structural drying, applied antimicrobial treatment, and documented the scope of work to restore pre-loss condition before the weekend.
Trusted Brands We Service in Universal City
We stock replacement parts and materials for the major equipment brands Universal City homeowners already own, including Dri-Eaz dehumidifiers, XPOWER air movers, B-Air units, and Injectidry drying systems. If your Injectidry mat setup fails during a crawl space drying job under a pier-and-beam home, we can get you moving again quickly. Our IICRC, RIA, and IFA credentialed technicians service these systems daily across Universal City, and we keep common parts on hand so you’re not waiting on a distributor shipment from San Antonio.
Common Mold Remediation Problems We See in Universal City Homes
- Clay soil wicking under pier-and-beam foundations. Universal City’s expansive clay expands and shrinks with every rain cycle. Water that pools under the home after a storm keeps subfloor moisture elevated for weeks, and mold grows even when the crawl space looks dry on top.
- Floor-drain backups during heavy rain. Older clay tile storm lines east of Pat Booker Road can’t handle current runoff. Water and sewage back up through original floor drains during fast-moving thunderstorms, and that contaminated water creates mold inside wall cavities and under flooring within 48 hours.
- Missed mold in cast-iron plumbing chases. Many homes built in the 1950s through 1970s still have original cast-iron drain lines. Slow slab leaks behind brick veneer keep wall cavities damp for months, and mold grows in the plumbing chase where no one looks until the smell becomes obvious.
- Improper containment by previous vendors. We’ve seen remediation done with no containment that spread mold spores into adjacent rooms and crawl spaces. Once that happens, the whole square footage has to be recleaned, which doubles the cost. Proper containment on Universal City homes is non-negotiable.
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AfterPricing for Mold Remediation in Universal City, TX
Expect to pay $350 to $600 for a mold inspection with moisture mapping and lab sampling. A contained mold removal in a single bathroom, closet, or wall cavity in Universal City runs $1,800 to $3,500. Whole-room remediations run $3,500 to $5,500, and crawl space treatments on pier-and-beam homes run $2,800 to $6,500 depending on square footage and the amount of saturated insulation. Homes with acreage lots and detached buildings cost more because of the additional square footage and equipment mobilization. We write the price before any work starts, and that number doesn’t change unless you add scope. Call (325) 252-3917 for a free estimate, and we’ll send you the line items in writing.
We Also Serve Cities Near Universal City
Our crews regularly run mold remediation and water damage jobs in Universal City and across the northeast San Antonio metro, including Converse, San Antonio, and Boerne. If you live just outside the Universal City limits near Randolph AFB or along the Cibolo Creek corridor, call us and we’ll get a technician to you quickly. The same Threshold Verified standard applies no matter which neighborhood you’re in.
Serving Universal City, TX - Our Local Coverage Area
We’re based in the Universal City 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 Universal City
Within 24 to 48 hours. Mold can begin colonizing wet drywall and subfloor materials in as little as 48 hours after a Category 2 water event, and Universal City’s clay tile storm lines east of Pat Booker Road make floor-drain backups a regular occurrence during heavy rain. Call (325) 252-3917 the day it happens and we’ll get a technician out with moisture meters to check your crawl space and wall cavities before mold takes hold.
Yes, and in Universal City this is common. Moisture wicks up through the clay soil under pier-and-beam foundations and keeps the subfloor and wall cavities damp for months after a rain event. Mold grows inside those cavities where you can’t see it. A $350 to $600 inspection with moisture mapping and air sampling will find it, and we’ll show you the readings with photo documentation before we recommend any remediation scope.
Yes, containment is needed even for small patches. Any remediation activity, including cutting out a six-inch section of moldy drywall, releases spores into the air. Without negative air pressure and physical barriers, those spores settle into your carpet, furniture, and HVAC system. Most small contained remediations in Universal City split-levels run $1,800 to $3,200, and doing it right the first time costs less than recleaning a whole house later.
Any Category 2 or Category 3 water from Cibolo Creek flooding requires professional mold remediation, not just drying. Category 2 is contaminated water from storm-drain backups or sump pump failures, and Category 3 is sewage or creek water that carries pathogens. Both create the conditions for mold within 48 hours, and both require containment, antimicrobial treatment, and verification that the structure is dry before any rebuild. Call (325) 252-3917 and a live person will walk you through the category and the next step.
We map the plumbing chases and test moisture behind the brick veneer where cast-iron lines run, then we open only what needs to be opened. The real risk on Universal City’s east side is a slow slab leak that has been keeping a wall cavity damp for months without you knowing. We fix the source, contain the affected area, and dry the structure fully, using Dri-Eaz dehumidifiers and XPOWER air movers to hit true dry standard, not just surface dry. Every job gets a written scope and a 365-Day Done Right Promise printed on the work order.
Call Marsh Water Damage Restoration for Mold Remediation in Universal City
If you smell mold, see staining, or had water in your Universal City home after a storm, don’t wait. The 48-hour clock is running whether you can see the mold or not. Call (325) 252-3917 and a live person answers, 24/7, including holidays. Tell us what you’re seeing, and we’ll schedule a Threshold Verified technician to your home in Universal City by name and photo before they arrive. You’ll get a written price, a written guarantee, and a 365-Day Done Right Promise that we stand behind. If it’s not right within a year, we make it right, including a free second visit.
Written by Tobias Reyner, Owner at Marsh Water Damage Restoration, serving Universal City since 2005.