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 South Houston
Mold remediation in South Houston typically costs $1,800 – $6,500 for a full job, with crawlspace treatment and structural drying accounting for the largest share. Most homeowners call us after a hard rain reveals a damp smell coming from the floor or after a leak that sat for more than 48 hours. We’re the local crew that gets into South Houston the same day, usually within 90 minutes of your call to (325) 423-6800.

South Houston is different from the newer subdivisions around Pearland or Deer Park. The housing stock here runs older, smaller, and sits on pier-and-beam foundations that hold water underneath long after the yard looks dry. That changes how mold work has to be done. Our Mold Remediation team works from the tidemark out, not the other way around.
Why Tidemark Water Damage Houston Is South Houston’s Preferred Mold Remediation Company
We’re independently owned and operated, working to the Cedarwell Care Promise. That means a written price before any work starts, pet-safe products where there’s a choice, and a 365-Day Done Right Promise behind every job. Rick Sumner leads the crew with a simple rule: explain the price before the work, and treat every South Houston home like it’s our own.
South Houston homeowners deal with mold differently than people in slab-on-grade cities. Your floors sit on wood joists over open air. When mold takes hold below, it travels upward through the subfloor into the living space. We find the tide mark, dry past it, and never stop at what’s visible.
Every technician who arrives at your door in South Houston is background-checked, uniformed, and credentialed through IICRC. Shoe covers go on at the door. Drop cloths cover the floor before the first piece of equipment comes in. A photo of the clean-up is taken and shared before the crew leaves.
Restoration work we handle






Mold Removal Service in South Houston
Mold Removal Service in South Houston means treating the full path of water, not just the stain you see on the wall. In a pier-and-beam home, that path runs from the crawlspace up through floor joists, subfloor, and into wall cavities. Surface cleaning alone leaves the reservoir below intact.
Containment and Removal
We set 6-mil containment around the work area, run HEPA air scrubbers, and remove mold affected drywall, insulation, or flooring on a written scope you approved before we start. Every removal job in South Houston includes antimicrobial treatment of the framing left behind. We don’t ask you to sign off on more work after the walls are open.
Crawlspace Treatment
Crawlspace treatment runs $1,200 – $3,800 depending on square footage and how much moisture is trapped underneath. We remove standing water, treat joists and subfloor with antimicrobial, and install or repair vapor barrier. In South Houston, this step is not optional. It’s the difference between a one year fix and a five year fix.
Mold Remediation Services in South Houston
Mold Remediation Services in South Houston cover the entire cycle: inspection, moisture mapping, containment, removal, structural drying, treatment, and verification. We test wood moisture content with meters, not guesswork. The job isn’t done until readings drop below 16% in the wood.
Air Quality Restoration
After structural work, we run HEPA air scrubbers for 24 – 48 hours and can schedule post-remediation air sampling. For South Houston homes with kids or anyone with respiratory issues, we recommend this step every time. Pet-safe drying agents are used where there’s a choice.

Moisture and Humidity Control
South Houston’s near constant high dew points mean a crawlspace can climb back above 80% humidity within days of drying if the vapor barrier is compromised. We install barrier, vent sealing, and in some cases a crawlspace dehumidifier. You get a plan in writing, with dollar numbers, before we touch anything.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in South Houston
Our trucks carry XPOWER low-profile air movers, B-Air drying equipment, and Injectidry systems for hard to reach cavities. For South Houston customers, that means we don’t have to wait on a rental house or a parts run across town. We stock what we need, and we service the equipment between jobs. Fast turnaround comes from having the right machine on the truck when the crew rolls up.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in South Houston Homes
- Standing water under the east side’s 1950s wood-frame homes. After any hard rain, water collects under the pier-and-beam crawlspace and holds humidity above 80% for days. Mold colonizes the joists from below while the living room carpet looks completely dry.
- Single-pane windows and uninsulated attics holding dew point moisture. South Houston’s older homes swing through big temperature and humidity changes. Condensation forms inside wall cavities and on drywall long after a visible leak is extracted.
- Contractors treating category 2 grey water like clean water. When a washing machine or dishwasher leaks, that water carries organic material. Skipping full antimicrobial treatment leaves mold food in the wall cavity. It flash-dries on the surface but stays damp inside.
- Mold regrowing within weeks after a surface-only cleanup. This happens when remediation stops at the living space and ignores the raised pier-and-beam crawlspace. We see this pattern regularly in homes near Braes Bayou where humidity never really drops.
Pricing for Mold Remediation in South Houston, TX
A typical mold removal job in a South Houston single-story home runs $1,800 – $3,200. Add crawlspace remediation with vapor barrier replacement and you’re at $3,000 – $5,500. Full structural drying, containment, air quality restoration, and post-remediation verification on a heavily affected pier-and-beam home runs $5,000 – $6,500.
What moves the number: square footage of affected area, whether the crawlspace has ample clearance or is tight, how long water sat, and whether wood framing needs treatment or replacement. You see the written number before we start. No surprises on the final invoice.
We Also Serve Cities Near South Houston
Our crews work across South Houston and into Pasadena, Galena Park, Deer Park, and Pearland. If you’re just outside the city line, call us anyway. We know the difference between a slab home in Pearland and a pier-and-beam home on Avenue L, and that changes how we dry it. Read more about our South Houston service area.
Serving South Houston, TX - Our Local Coverage Area
We’re based in the South Houston 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 South Houston
In South Houston’s humid subtropical climate, mold can start colonizing wet wood and drywall within 24 – 48 hours of a water intrusion. The crawlspace under a pier-and-beam home accelerates this because standing water holds humidity against the joists for days. Call (325) 423-6800 the day you notice the leak, not the day the smell appears.
In most pier-and-beam homes built in the 1950s – 1970s, yes. The crawlspace is the reservoir that keeps re-wetting the wood above. If mold is in the floor or lower walls, we almost always treat the crawlspace as part of the written scope. In newer slab-on-grade infill homes, we may be able to skip it.
Category 1 is clean water from a supply line or rain. Category 2, or grey water, carries organic material from appliances or sump failures. Category 3 is sewage or floodwater containing pathogens. Each requires a different level of antimicrobial treatment and material disposal. South Houston homes near Braes Bayou should assume any flood event involves category 2 or 3 water.
Because the crawlspace was never addressed. A surface-only cleanup in a pier-and-beam home leaves standing water, humid air, and untreated joists underneath. The mold comes back through the subfloor within months. Our job isn’t done until the crawlspace is dried, treated, and sealed, and wood moisture reads below 16%.
Yes. Slab homes have different failure modes: water wicking up through the slab, wall cavities holding condensation, and slow leaks inside uninsulated walls. We use Injectidry systems to dry closed cavities and B-Air equipment for structural drying. The process is different, but the standard is the same: written price first, done right, verified after.
Call (325) 423-6800 for a free estimate. A live person answers, day or night. We’ll walk you through what we see, what it costs in writing, and what we’ll protect. Rick Sumner and the crew at Tidemark Water Damage Houston have been doing this work since 2006.
Written by Rick Sumner, Owner at Tidemark Water Damage Houston, serving South Houston since 2006.