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 estimateRestoration work we handle
See the difference
Before
After
Before
After
Before
AfterFlood Cleanup in San Antonio, TX
Flood cleanup in San Antonio means removing standing water, drying out the structure, and preventing mold before it takes hold. A fast, thorough response typically costs between $1,800 and $4,500 for a single-room flood, and most jobs can be started the same day you call. If you’re standing in water right now, call (325) 252-3917 and a live person will answer, day or night.
This is what we do at Marsh Water Damage San Antonio. The name fits the work: a marsh is low, wet ground, water where it shouldn’t be. We deal with that every day. Our crews handle everything from a burst supply line in Alamo Heights to creek overflow in Stone Oak after a hard rain. And unlike a crew you’ve never met, you’ll know exactly who’s coming to your door before they knock. Since 2005, we’ve been the restoration brand of the Threshold Group family, and every job starts with a written price and a written guarantee. You can learn more about the full scope of what we do on our Water Damage Restoration in San Antonio page.
Key Takeaways:
- Flood cleanup in San Antonio typically runs $1,800 to $4,500 per room, depending on water category, affected materials, and drying time.
- We answer calls 24/7 with a live person – no voicemail, no callback queue.
- Every technician is background-checked, identity-verified, and sent to you by name and photo before the visit.
- Every job includes a written price before work starts and our 365-Day Done Right Promise in writing.
- Equipment from Dri-Eaz, Phoenix, XPOWER, B-Air, and Injectidry – the same gear used on commercial losses.
When You Need Flood Cleanup
Not every wet floor calls for full flood cleanup. Here’s what tells us you’re dealing with a genuine flood situation rather than a small spill or condensation issue:
- Water covers a significant area of flooring – in San Antonio homes, that’s frequently a slab foundation with carpet, tile, or laminate. Once water spreads beyond a few square feet, wicking into baseboards and drywall begins within hours.
- The water came from outside – flash floods along Salado Creek, Leon Creek, or the San Antonio River can push muddy, contaminated water into homes in low-lying neighborhoods. This is Category 2 or Category 3 water and requires sanitizing, not just drying.
- A supply line, water heater, or washing machine failed while you were away – water that sits for even 8 to 12 hours in a warm San Antonio house starts growing microbial colonies in drywall and padding.
- You smell must or earth – that odor is the first sign that moisture has saturated materials you can’t see. By the time you smell it, drying needs to start that day.
- Baseboards are swelling, paint is bubbling, or tile feels loose – moisture has wicked up into walls and under flooring. This is structural saturation, not surface dampness.
- You can’t identify the source – if water is appearing with no obvious cause, you may have a slab leak. We’ll locate it and stop it before cleanup begins, because drying a house with an active leak is pointless.
In neighborhoods like Terrell Hills, Castle Hills, and Helotes, we see the same pattern repeatedly: a slow leak behind a wall goes unnoticed for weeks, and by the time water shows up on the floor, the damage is already significant. The sooner you call for Water Damage Restoration services, the less we have to remove.
Our Flood Cleanup Process
Here’s exactly what happens when you call Marsh Water Damage San Antonio at (325) 252-3917:
- You talk to a live person. No phone tree, no answering service. You describe what happened, and we give you an honest assessment of whether this needs immediate professional response or can wait until morning. We’ll also tell you what to do right now to stay safe – like whether to shut off a breaker or avoid a room entirely.
- You receive a technician’s name and photo before we arrive. This is the Threshold Verified standard at work. Every tech is background-checked and identity-verified. The person who shows up at your door in a uniform with a photo ID badge is exactly who we said was coming. If you’re home alone, have small children, or just don’t like surprises, this matters.
- We assess and write the price before touching anything. Using moisture meters, thermal imaging, and psychrometric readings (measuring the moisture in the air) we map exactly how far the water has traveled. Then we put a dollar figure in writing. That number doesn’t change unless we find additional damage – and if we do, we stop and get your approval before proceeding.
- Extraction and removal. Standing water comes out first with commercial extraction units. Then we remove saturated materials that can’t be saved – carpet padding, affected drywall, insulation. We don’t tear out anything that can be dried, and we show you what we’re removing and why.
- Drying and monitoring. We set professional drying equipment – air movers and dehumidifiers from Dri-Eaz, Phoenix, XPOWER, B-Air, and Injectidry – then monitor daily until psychrometric readings confirm the structure is genuinely dry, not just dry on the surface. This typically takes 3 to 5 days in San Antonio’s climate, where humidity levels work against you most of the year.
- Sanitizing and verification. Floodwater isn’t clean water. We apply antimicrobial treatments to affected surfaces and verify the space is safe before we call the job done. Then we hand you a written guarantee covering the work for 365 days.
Flood Cleanup Pricing in San Antonio
Most residential flood cleanup in San Antonio runs between $1,800 and $4,500 per affected room, with whole-home floods from creek or storm overflow reaching $8,000 to $15,000 or more depending on what was submerged and for how long. Here’s a realistic breakdown of what you’re paying for:
- Initial assessment and moisture mapping: $150 to $350. This includes thermal imaging and a written scope of work. We apply this toward your total if you proceed.
- Water extraction: $400 to $1,200 per room, depending on water volume and flooring type. Carpet over slab extracts faster than wood or tile with water trapped underneath.
- Removal and disposal of saturated materials: $500 to $1,800 per room. This includes cutting drywall, pulling carpet and pad, and hauling debris. San Antonio landfill fees are part of this line.
- Drying equipment and monitoring: $300 to $700 per day for the full equipment set, with most jobs requiring 3 to 5 days. In high-humidity months (May through September), drying can take a day or two longer.
- Antimicrobial treatment and final cleaning: $200 to $600 per affected area. Floodwater is Category 2 or Category 3 water, and this step is not optional.
What changes the price? The biggest factor is how long the water has been sitting. A flood caught in the first hour is often a $2,000 extraction and dry-out. The same flood left overnight is a $5,000 job with drywall removal and flooring replacement. San Antonio’s clay-heavy soil also means slab homes can hold moisture in unusual ways, and we account for that in our assessments. The number we give you is the number you pay. If we find additional damage during the work, we stop and present a written change order before any additional cost is incurred. Call (325) 252-3917 for a free estimate – you’ll get a straight answer, not a sales pitch.
FAQs – Flood Cleanup
How much does flood cleanup cost in San Antonio?
Flood cleanup in San Antonio typically costs between $1,800 and $4,500 per affected room, with whole-home floods ranging from $8,000 to $15,000 or more. The biggest cost drivers are how long the water has been present, the water category (clean, gray, or black), and what materials were affected. Call (325) 252-3917 for an exact written quote – estimates are free, and the price we quote is the price you pay.
Can you come today?
Yes. We answer calls 24/7 with a live person, and in most San Antonio neighborhoods, including Alamo Heights, Stone Oak, Leon Valley, and Helotes, we can have a crew on-site within 2 to 4 hours of your call. Flood cleanup is time-sensitive work, so we staff for same-day response every day of the year. Call (325) 252-3917 and we’ll get moving.
Is floodwater dangerous to clean up myself?
Yes, floodwater from outside sources (rain runoff, creek overflow, sewage backup) carries bacteria, chemicals, and contaminants that make it unsafe to handle without proper protective equipment and sanitizing agents. Even clean-water floods become hazardous within 24 to 48 hours as microbial growth begins. We recommend leaving flood cleanup to trained professionals near you in San Antonio, TX with the right gear.
Do you work with my insurance company?
Yes. We document everything – photos, moisture readings, material logs, and a written scope of work – in the format insurance adjusters expect. We can bill your carrier directly in many cases, and our team will walk you through the claims process step by step. The written price we give you stays the same whether insurance pays or you pay out of pocket. Call (325) 252-3917 and we’ll help you figure out what your policy covers.
If you’re dealing with standing water, wet walls, or a floor that’s been soaked by San Antonio storms, don’t wait. Every hour that passes moves water deeper into materials and pushes the job from cleanup toward mold remediation. Call Marsh Water Damage San Antonio at (325) 252-3917 for a free estimate. A live person answers. You’ll get a written price, a written guarantee, and a technician you already know by name and face before anyone sets foot in your home.
Written by Tobias Reyner, Owner at Marsh Water Damage San Antonio, serving San Antonio.