Bayou flooding and slab leaks soak Houston homes. We extract the standing water, set up dehumidifiers and air movers, and take moisture readings every day until the floors and framing test dry.
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Available 24/7 · Houston and nearby areas
Mold Remediation in Houston, TX
Gulf humidity, a blocked condensate drain, or floodwater in a wall can lead to mold. Our crew handles mold remediation in Houston, TX, finds the moisture behind it, and dries the space out. Call any time, day or night.
Call (346) 451-675745minutes
IICRC Certified Firm#70120685
We work with all major insurance carriers
Mold help
Mold in Houston homes
Houston’s Gulf Coast humidity is relentless, and mold takes advantage of any break in the routine. When Hurricane Beryl knocked out power to millions of CenterPoint customers in July 2024, homes sat for days without AC. Many found mold on walls, furniture, and clothes when the power came back.
Flooding leaves a long tail. Drywall and insulation left wet inside a Houston wall after a flood can grow mold long after the water recedes.
Even in a normal summer, attic AC systems run constantly. A clogged condensate line can drip onto ceilings for weeks, while bayou flooding or a slab leak soaks walls from below.
Homeowners, property managers, and business owners across Harris, Fort Bend, Montgomery, Galveston, Brazoria, and Waller counties call us about mold all year round.
Call Now (346) 451-6757Mold remediation at a glance
What’s included
Moisture control, containment, removal by remediators, flood cuts, HEPA cleaning, drying, and repairs.
Typical timeline
A spot under a sink can take a day or two.
How cost is set
Your estimate depends on how much wall area needs flood cuts, whether Texas rules call for an assessor, and how much has to be rebuilt.
First visit
Call (346) 451-6757A free inspection and estimate before any work starts.
Found mold?
What to do when you find mold
Finding mold is stressful, but you have time to do this right. Acting in the first day or two keeps it from spreading.
Not sure how big the problem is? Call and talk it through with our crew.
Call (346) 451-6757What to do
Look for the water
Check above and around the mold for a drip, a damp spot, or a stain. Stopping the water stops the mold from growing.
Bring the humidity down
Run the air conditioning or a dehumidifier. The EPA recommends keeping indoor humidity below 60%, ideally between 30% and 50%.
Take photos
Photograph the mold and any water damage before anything is cleaned. Your insurance company may ask for them.
Clean small spots the right way
For a patch under about 10 square feet, the EPA says you can usually clean it yourself with detergent and water. Wear gloves, eye protection, and a mask.
Keep sensitive people away
Anyone with asthma, allergies, or a weak immune system should stay out of the area until the mold is gone.
What not to do
Don’t scrub or sand it dry
Dry mold sends spores into the air and through the house. Keep the surface damp while you clean it, or leave it for a pro.
Don’t bleach it and paint over it
Bleach can whiten the surface, but on drywall and wood it doesn’t reach the mold growing inside. Paint over mold peels, and the mold keeps growing underneath.
Don’t point fans at it
Fans blowing across mold carry the spores into other rooms.
Don’t run the heat or air if the mold is in the ducts
The system will blow spores through the whole house. Leave it off until it’s been checked.
Don’t buy a test kit first
If you can see mold, the EPA says testing usually isn’t needed. Spend the money on finding the leak.
Where mold hides
Where we find mold in Houston homes
In Greater Houston, mold usually traces back to humidity, flooding, or the AC system.
Walls After Flooding
Drywall and insulation left wet above the flood line grow mold inside the walls.
Attic AC Systems
In a Houston summer the attic unit barely rests. A clogged line or rusted pan can soak the ceiling below for weeks.
Bathrooms and Kitchens
Leaks under Houston sinks and around tubs grow mold fast in humid air.
Homes Without AC During Outages
Without cooling, Houston homes get so humid that mold creeps over walls and furniture.
Bayou and Street Flooding
Floodwater soaks lower walls, cabinets, and floors.
Slab Leaks
Leaks under slab foundations wet flooring and baseboards from below.
How we remove mold
How we remove mold
In Houston, mold returns if humidity, an AC leak, or wet walls aren’t handled. We find and stop the moisture first.
Texas licensing applies. Texas requires mold remediation to be done by a licensed mold remediator, regulated by the Texas Department of Licensing and Regulation.
We contain, cut, and remove. HEPA air scrubbers and plastic barriers protect the house while flood cuts remove moldy drywall and insulation above the wet line.
We dry thoroughly before rebuilding. In Gulf humidity, dehumidifiers keep going until the readings are back to normal.
What the signs usually mean
Spots on walls after a power outage
What it usually meansHigh indoor humidity while the AC was off
What to doRestore cooling and have the walls checked.
Mold above an old flood line
What it usually meansWet drywall or insulation left inside the wall
What to doHave the walls opened above the flood line.
A sour smell from the attic AC
What it usually meansMold in the air handler, pan, or ducts
What to doHave the AC system and attic inspected.
Brown rings on ceilings in summer
What it usually meansAn overflowing condensate pan
What to doClear the line and have the ceiling checked.
Baseboards swelling in a dry room on a slab home
What it usually meansWater rising from a leak under the foundation
What to doHave a plumber leak-test the lines and the walls checked for growth.
A stale Gulf Coast odor with no visible mold
What it usually meansGrowth behind drywall, under cabinets, or in the ductwork
What to doBook an inspection so we can take moisture readings behind the surfaces.
What can be saved
What can be cleaned and what gets replaced
In Houston homes, cleaning versus replacing depends on the material, whether floodwater was involved, and how long Gulf humidity fed the growth. The inspection confirms each item.
Tile, concrete, metal, and glass
Usually cleanedHard surfaces clean and disinfect well, even after floodwater.
Wall studs
Usually cleanedStuds with surface growth are cleaned and treated after flood cuts.
Brick veneer
Depends on how deep it goesExterior brick usually dries; the wall behind it needs checking.
Drywall above a flood line
Depends on how deep it goesDrywall that wicked water is cut out to a set height above the wet line.
Wood and laminate floors
Depends on how deep it goesLaminate that swelled is replaced; some hardwood can be dried.
Carpet
Depends on how deep it goesCarpet touched by floodwater or with growth on the backing is replaced.
Furniture and clothing
Depends on how deep it goesSolid furniture often cleans; upholstery and clothing with deep growth may not.
Photos and documents
Depends on how deep it goesA specialist can sometimes save them if handled quickly.
Wall insulation
Usually removedInsulation inside flooded or moldy walls is removed.
Carpet pad
Usually removedPad with floodwater or growth is replaced.
Cabinets with particleboard
Usually removedParticleboard that soaked up floodwater is usually replaced.
Do You Need a Mold Test?
Usually not, if you can see the mold. The EPA says that in most cases, testing isn’t needed when mold is visible. What matters is removing it and fixing the moisture.
Testing can help when you smell mold but can’t find it, or to confirm a cleanup worked. There are no federal limits for mold levels, so results need someone experienced to read them. We’ll tell you whether a test is worth it for your situation.
Stop the water behind the mold
Other restoration services we offer in Houston
Every job starts with a free inspection and estimate. Here’s how the 24 Hour Flood Pros team helps with each type of damage.
Generators and grills during outages can start fires. Soot is acidic and keeps staining surfaces, so cleanup starts early. We remove soot, treat odor at the source, clean what can be saved, and rebuild what can’t.
More about Fire and Smoke Damage
Hurricanes and derechos damage roofs and windows across the region. We dry the structure, remove damaged materials, and repair the ceilings and walls inside.
More about Storm Damage
Mold in a Houston office, restaurant, or apartment complex needs fast, well-planned work. We extract, dry, and clean on a plan built around reopening, and we document each step for your carrier.
More about Commercial Restoration
When you’re ready to rebuild, the same crew puts it back together, from drywall to cabinets to the final coat of paint, so there’s no second contractor to hire.
More about ReconstructionDealing with one of these?
Call (346) 451-6757Call and talk to our crew about what happened. The call is free, and so is the inspection.
Our process
What happens after you call
- 1
You call, we send a crew
Call (346) 451-6757 any time, day or night, including weekends and holidays. Tell us what you’re seeing or smelling, and where. We’ll send a crew right away.
- 2
We inspect and find the source
The 24 Hour Flood Pros team looks for the moisture feeding the mold. We use moisture meters to find water hiding inside walls, under floors, and in the crawlspace. We take photos for your insurance. The inspection is free.
- 3
We close off the area
We seal the work area with plastic and set up HEPA air scrubbers, so spores don’t spread to clean rooms. The heat and air stay off in that area while we work.
- 4
We stop the moisture
We dry out the water and show you what’s causing it. If a plumber, a roofer, or an HVAC tech needs to fix a leak, we tell you before we go further.
- 5
We remove moldy materials
Drywall, insulation, and carpet pad with mold growing in them are cut out, bagged, and carried out. That way we only remove what really needs it.
- 6
We clean and dry what stays
Framing, subfloor, and other solid surfaces are HEPA-vacuumed, cleaned, and treated. Then we dry them until they read close to a dry room elsewhere in the house.
- 7
We make the repairs
When you’re ready, the 24 Hour Flood Pros team fixes the damage. We replace drywall, install cabinets, and finish with fresh paint. Our goal is to make your home look the way it did before.
- 8
Final check with you
Before we take the plastic down, we check the area for any mold or dust left behind. Then we walk through it with you and send the final records to your insurance company to close out the claim.
Mold after days without power?
Call (346) 451-6757A Houston summer without AC lets mold spread through the house. Call us for a free inspection.
Insurance and claims
Mold remediation and your insurance claim
Sometimes. Many homeowners policies cover mold when it comes from a sudden, covered water event, like a burst pipe or a water heater that gives out. Mold from a slow leak or ongoing humidity is often excluded, and some policies cap mold coverage at a set amount.
Your policy decides what’s covered, not us. We work with all major insurance carriers, including State Farm, Allstate, Liberty Mutual, Farmers, American Family, Travelers, and Nationwide, and we keep the paperwork clear enough that your claim doesn’t stall.
Report it soon after you find it. Waiting can make it harder to show the mold came from a sudden event.
If a claim stalls, you can file a complaint with the Texas Department of Insurance, (800) 252-3439.
What your adjuster will ask for
- When you first noticed the mold or the smell
- What caused the moisture, and when it started
- Photos of the mold and any water damage
- Receipts for any work already done on the leak
What we send them
- Date-stamped photos of each affected area
- Moisture readings showing where the water is
- A line-by-line estimate for removal and rebuild
- One point of contact for your adjuster
Where we work
Areas we serve around Houston
We serve Houston and communities across Greater Houston.
Counties
- Harris County
- Fort Bend County
- Montgomery County
- Galveston County
- Brazoria County
- Waller County
Nearby cities
- Katy
- Sugar Land
- Pearland
- Pasadena
- The Woodlands
- Spring
- Cypress
- Humble
- Baytown
- League City
- Missouri City
- Conroe
Don't see your area listed? Call us and we'll tell you right away.
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Nearby locations
Looking for a different location?
On the wrong page, or is another location closer to you? Here are our nearest locations.
Austin, TX
View Austin mold remediation services →San Antonio, TX
View San Antonio mold remediation services →Dallas, TX
View Dallas mold remediation services →Common questions
Houston mold remediation FAQs
How fast can 24 Hour Flood Pros get to me?
A crew can be there within 45 minutes. We work 24/7, including nights, weekends, and holidays, so you can call the moment you find mold or a leak.
Is black mold dangerous?
Any mold growing indoors should be removed, whatever its color. The CDC’s advice is that you don’t need to know the type of mold to deal with it. Mold can trigger allergies and asthma, so people with breathing problems or weak immune systems should stay away from it.
Can I clean mold myself?
For a small area, yes. The EPA says a patch under about 10 square feet, roughly 3 feet by 3 feet, can usually be cleaned with detergent and water while you wear gloves, eye protection, and a mask. Call a professional for anything larger, mold in the heating and air system, mold after sewage or flood water, or mold that keeps coming back.
Do I need a mold test before remediation?
Usually not if you can see the mold. Testing is most useful when you smell mold but can’t find it, or to confirm the cleanup worked.
Will the mold come back after remediation?
Not if the moisture is fixed. Mold comes back when the leak, the drainage problem, or the humidity is still there. That’s why every job starts with finding the source, and why we dry everything before the walls are closed.
Do I need to leave my home during mold remediation?
Usually not. We seal off the work area and filter the air, so most people stay home. For large jobs, or if someone in the house has breathing problems, we’ll tell you in advance if staying somewhere else makes sense.
How much does mold remediation cost in Houston?
It depends on how big the area is, what has to be removed, how hard it is to reach, and what it takes to stop the moisture. A bathroom wall costs far less than a whole crawlspace or attic. The inspection and estimate are free, so you know the cost before any work starts.
How long does mold remediation take?
A small area can take a few days. Crawlspaces, attics, and rooms that need rebuilding take longer. Your estimate includes a schedule.
Does Texas require a license for mold remediation?
Yes. Texas requires mold remediation to be done by a remediator licensed through the Texas Department of Licensing and Regulation. Ask to see a current license before you hire anyone.
Available 24/7
Get a free inspection
Day or night, weekend or holiday, call (346) 451-6757. A crew can be there within 45 minutes to start your free inspection.
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