A tenant in unit 6 reports a musty smell and a stain creeping across the bedroom ceiling. Or a health inspector points at dark spotting spreading up the wall behind your kitchen line and gives you a date to fix it by. Commercial mold removal in Brownsville comes with a second problem stacked on top of the mold itself: people are counting on the space. You have customers, tenants, staff, or an inspector waiting, and every hour the place is closed or flagged is costing you.
We handle commercial mold removal for property managers, restaurant and retail owners, offices, and multi-family landlords across Brownsville and the Rio Grande Valley. We plan the work around your operations, contain it so the rest of the building keeps running, and document it for your insurance and your records. The on-site estimate is free.
Call 956-203-0552 for a free on-site quote. We answer the same day whatever hour you call or send the form, and scheduling the disruptive work for nights and weekends is normal here, not an exception.
What a mold problem costs a business
For a home, mold is a health and repair problem. For a business it is also a revenue and liability problem. A restaurant with mold behind the line can be closed by an inspector. A retailer loses the stockroom and the sales floor around it. An office sends staff home. And a landlord with a mold complaint faces something worse than a repair bill: a tenant dispute, a vacancy, and real exposure if the problem was ignored. Mold does not pause for any of that. In Brownsville’s humidity, wet material left inside a wall keeps feeding growth for weeks, so a problem you postpone to avoid closing today becomes a larger closure later.
Removal that keeps the rest of your building open
The reason an owner hesitates to call is the fear of shutting everything down. Done right, that is not what happens. Proper containment seals off the affected area under negative air pressure, which keeps spores from drifting into the rest of the building, so the dining room, the other suites, or the unaffected units can often stay in use while the work area is handled. We schedule the disruptive parts for off-hours where we can, you get one person to call rather than a rotating cast, and you know at the end of each work day what was done and what happens next.
What we bring beyond the crew is the paperwork discipline a commercial job needs. Every step is documented for your insurer, for code, and for your own protection if a tenant or a buyer raises the question later. We are local, we answer the same day, and you can reach us by phone or through the quote form on this page at no cost.
Our commercial mold removal process
- On-site assessment. We walk the building, find the moisture source, and scope how far the mold has spread, then map the work around how the space is actually used.
- A plan sized to the job and the law. On any area of 25 contiguous square feet or more, Texas requires the work to run to a written plan, under sealed containment, with the state notified before the start and a notice posted at the work area. Larger commercial jobs almost always cross that line, so we plan for it from the first visit.
- Contain and work in phases. We isolate the active area, and where the building has to keep running, we phase the work so one section is handled at a time instead of closing everything at once.
- Remove, treat, and dry. The porous materials the mold has colonized come out, the surfaces that stay are HEPA-vacuumed and treated, and the structure is dried to a verified moisture level before anything is rebuilt.
- Independent clearance and documentation. For jobs that need it, an independent licensed assessor confirms the area is clean before you reopen, and you get the certificate and the file for your records. Texas does not let the company that removes the mold also be the one that clears it, which we explain on our mold inspection and testing page, and which is your assurance the sign-off is honest.
What drives the cost
Commercial jobs price out on the same logic as any mold work, with the building’s use added in. Size is the biggest factor, and the 25-square-foot line that turns a job into licensed work with containment and clearance is crossed more often on commercial buildings than on homes. Beyond that: how far the mold traveled, how much material and finish has to be removed and rebuilt, whether the work has to run after hours or in phases to keep you open, and what kind of space it is, since a kitchen, a clean retail floor, and an occupied apartment each carry different requirements. We give a free on-site estimate, because a commercial quote worth trusting comes from walking the actual space, not from a phone call. The scope and the number reach you in writing before any work starts, and if something changes mid-job, you hear it from us before it shows up on an invoice.
Call 956-203-0552 to get a straight on-site estimate before a small problem closes part of your building.
Insurance, liability, and documentation
Commercial policies differ from one another even more than homeowner policies do, so what yours covers is a question for your carrier and your specific plan. What holds across all of them is that documentation decides claims. In Texas the burden of proving what caused the damage falls on the policyholder, so dated photos taken before any work, moisture readings, and a clear record of the source are what turn a disputed loss into a paid one. For the underlying logic of how Texas treats sudden water, gradual leaks, and flooding, our water damage restoration page lays it out in full.
For a landlord, that same documentation does double duty. A mold complaint handled quietly with a wipe and a coat of paint leaves you exposed if it returns or if a tenant pursues it. A remediation done to the state’s standard, with a written record and an independent clearance on the larger jobs, is the version that protects the building and the owner.
Brownsville is hard on commercial buildings
Few places in Texas are as humid as the lower Valley, and the same conditions that grow mold in homes work on commercial buildings, sometimes harder. A large building with an oversized or short-cycling cooling system can run cold without actually pulling moisture out of the air, which leaves condensation on surfaces and inside the structure. A space that sits vacant between tenants with the air off is worse still, since nothing is managing the moisture at all, and mold can take hold before the next lease is signed.
Flooding reaches businesses too. In the historic March 2025 flooding, water got inside roughly a thousand buildings across the region, businesses among them, and the June 2018 flood damaged thousands of homes and businesses across Cameron and Willacy counties. Brownsville also carries a large stock of rental housing, with roughly four in ten homes renter-occupied and thousands of units in larger complexes, so one moisture problem in a Southmost fourplex or behind the shared wall of a downtown storefront can touch many tenants at once. A plan for a commercial or multi-family building has to account for all of that, not just the one wall you can see.
Frequently asked questions
Does a landlord have to remove mold from a rental property in Texas? Start with what is certain: once the affected area reaches 25 contiguous square feet, Texas requires the licensed process no matter who owns the building, and handling it properly and on record is what protects an owner if the issue is ever disputed. Where exactly a landlord’s repair duty begins is a question for a Texas landlord-tenant attorney. As a practical matter, though, a mold complaint is a liability and vacancy risk you want resolved quickly either way.
Does the 25-square-foot rule apply to commercial buildings too? Yes. The threshold that turns mold removal into licensed work with containment, notification, and an independent clearance is about the size of the affected area, not about whether the building is a house or a business. Texas builds its do-it-yourself exemptions around homes: an owner may handle their own house, and small residential rental properties get similar room, but nothing comparable exists for commercial buildings. On a large building, plan on the full licensed process.
How much lead time and disruption should we expect on a large job? For a job of 25 square feet or more, the state has to be notified before work starts, roughly five days ahead, so it is worth calling before a deadline rather than the day of. During the work, sealed containment and a posted notice keep the active area isolated, which is what lets the rest of the building keep operating while one section is handled. We tell you up front which areas are affected and for how long, so you can plan staffing and scheduling around it.
Can TDLR make a landlord clean up mold, or inspect our building? TDLR’s role is licensing and disciplining the assessors and remediators who do mold work, and its complaint process is about those licensed professionals, not about a landlord’s upkeep or the condition of a private building. So TDLR is where you verify a contractor’s license or report a bad one, not a landlord-tenant enforcer. For the building itself, the practical path is a proper, documented remediation.
What happens to mold in a vacant unit that has been closed up? It often gets worse, quietly. A vacant space with the air conditioning off has nothing managing the humidity, and in this climate that is exactly the condition mold needs, so an empty unit can develop a problem no one sees until the next tenant walks through. If you hold units between leases, it is worth keeping air moving and moisture in check rather than sealing them up and hoping.
If mold is threatening your building or your tenants, the sooner it is scoped the less it costs you in repairs and in closed hours. Call 956-203-0552 for a free on-site commercial mold removal quote, or send the quote form on this page and we will get back to you the same day. For a single-family home, start with mold removal in Brownsville or our mold remediation page instead.