Houston heat and humidity make mold one of the most common problems we run into. It shows up inside walls, under flooring, in attics, and in the HVAC system, where the AC can carry spores from room to room. Our crews find it on duct cleaning and water damage jobs every week, and we make sure it gets handled the right way.

How mold remediation works with us: when mold is growing in walls, floors, or attic materials, we refer the remediation to a TDLR-licensed mold remediation contractor, as Texas law requires. We stay on the job for the work that is ours: drying out water damage, cleaning the HVAC system and ducts, and replacing contaminated attic insulation.

Signs of Mold in a Houston Home

  • A musty or earthy smell from the vents or walls
  • Dark spots or staining on ceilings, walls, or around vents
  • Allergy symptoms that ease up when you leave the house
  • Water damage or a leak that was not fully dried within a day or two
  • Recent storm or flood water in the house, attic, or ductwork

If any of that sounds familiar, call (832) 699-0888 and we will set up a visit.

Air Duct Cleaning Humble TX - Extreme Air Duct Cleaning and Restoration Services

Why Houston Homes Get Mold

Houston air stays humid most of the year, and our AC systems run nine or ten months of it. Cold coils and ducts meet damp air, condensation forms, and dust settling on those wet surfaces gives growth something to feed on.

Add hurricane season, heavy rain, and slab leaks, and water ends up in places it cannot dry out on its own. Mold can start growing within a day or two of that, often before anyone sees it.

Mold in Walls, Attics, and Floors

When mold is growing in building materials like drywall, insulation, subfloor, or framing, that is mold remediation. In Texas, larger jobs have to be done by a licensed mold remediation contractor following a written protocol from a licensed mold assessor, and the assessor and remediator have to be separate companies. That way nobody grades their own work.

We connect you with a licensed contractor and stay on the job for the parts that are ours:

  • Drying out the space after a leak or flood through our water damage restoration service
  • Cleaning the duct system after remediation, so spores do not get blown back into clean rooms
  • Removing and replacing contaminated attic insulation when the protocol calls for it
  • Before-and-after photos of everything we touch, which help with insurance claims

Mold in the HVAC System and Ducts

If the smell starts when the AC kicks on, the problem is often in the air handler: the coil, the drain pan, the plenum, or the first few feet of duct. That is where our crews spend most of their time. Our HVAC mold removal page explains how we inspect, clean, and treat the system.

Keeping It From Coming Back

Mold returns when the moisture does. The cause is usually one of a few things: a clogged condensate line, a sweating coil, a leak that never got repaired, or an attic that traps heat and humidity. We show you what we found and what needs to change. For systems with a history of moisture at the coil, a UV light system can help keep that area cleaner between visits.

Why Homeowners Call Us First

  • Family-owned and serving Houston since 2002
  • 600+ Google reviews and an Angi A+ rating
  • One call covers duct cleaning and water damage, plus a referral to a licensed mold remediation contractor when you need one
  • Photo documentation on every job
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Shakirah Apena
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Came to an almost new carpet. Great job!
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Jeri Ann
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I am beyond pleased with Extreme Air Duct. Sam and Jorge couldn’t be more professional and proficient.
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Tasha Schwikert Moser
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Excellent service! Removed all the clogged lint in my dryer filter.
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Radka J
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We got scammed with another company called “Refresh Air-duct”. I found Extreme Air Duct and asked them to do the return vent cleaning, which the previous company didn’t do… They cleaned all the return vents and a return box. They cleaned the bathroom vents too. They used special spinning brush (kind of like a chimney sweeper), they vacuumed everything, cleaned all the grills. It was so good to have it done properly. They took photos before and after and answered all my questions. They send message 30min before they came. Everything was top!!! I highly recommend them. Photos before and after.
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Kaelee Carley
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Been using them for 2 years now super nice technicians, my vacuum broke and he single handedly picked up the dog hair with his hands. Super fast in an out within 15 min for 2 br and always on time!
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Ben Dror
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I work with many company before the people come do the job professional picture before and after Great service
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Gwen Johnson
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Pleasant to work with. Efficient and knowledgeable! Used them before and highly recommend them!
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Doug Dopper
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On time, professional, and did a great job.
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Frequently Asked Questions About Mold

Straight answers for Houston homeowners.

What is the difference between mold removal and mold remediation? +
Removal usually means wiping up what you can see. Remediation means finding the moisture source, containing the area, removing contaminated material, cleaning what is left, and fixing the cause. In Texas, remediation of larger areas has to be done by a licensed mold remediation contractor.
Do you do mold remediation yourselves? +
When mold is growing in walls, floors, or attic materials, we refer the remediation to a TDLR-licensed mold remediation contractor. We handle the water damage drying, duct cleaning, and insulation work around it, plus the HVAC mold cleaning covered on our HVAC mold removal page.
Is mold in the air ducts dangerous? +
It can make things worse for anyone with allergies or asthma, because the AC spreads whatever is in the system through the whole house. Not every dark spot is mold, though. We look at it, photograph it, and tell you honestly what we see.
Does homeowners insurance cover mold? +
It depends on the cause. Mold from a sudden covered event, like a burst pipe or storm damage, is often covered. Mold from long-term humidity or a slow leak usually is not. Our photos and notes can support your claim, so call your insurer early.
How long does mold remediation take? +
Small areas can be finished in a day. Larger jobs that involve several rooms or walls can take several days, plus drying time. The licensed contractor gives you the timeline and price before work starts.

Suspect mold in your home? We will take a look.

Call (832) 699-0888

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