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.
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 ApenaTrustindex verifies that the original source of the review is Google.
Came to an almost new carpet. Great job!![]()
Jeri AnnTrustindex verifies that the original source of the review is Google.
I am beyond pleased with Extreme Air Duct. Sam and Jorge couldn’t be more professional and proficient.![]()
Tasha Schwikert MoserTrustindex verifies that the original source of the review is Google.
Excellent service! Removed all the clogged lint in my dryer filter.![]()
Radka JTrustindex verifies that the original source of the review is Google.
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.![]()
Kaelee CarleyTrustindex verifies that the original source of the review is Google.
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!![]()
Ben DrorTrustindex verifies that the original source of the review is Google.
I work with many company before the people come do the job professional picture before and after Great service![]()
Gwen JohnsonTrustindex verifies that the original source of the review is Google.
Pleasant to work with. Efficient and knowledgeable! Used them before and highly recommend them!![]()
Doug DopperTrustindex verifies that the original source of the review is Google.
On time, professional, and did a great job.Google rating score: 4.8 of 5, based on 665 reviewsVerified by TrustindexTrustindex verified that these reviews were published on Extreme Air Duct Cleaning and Restoration Services's Google Business Profile. Learn more
Frequently Asked Questions About Mold
Straight answers for Houston homeowners.
Suspect mold in your home? We will take a look.
Call (832) 699-0888