If you are experiencing excess dust, black stuff blowing out, mold or fungus on your vent covers/registers, odors, allergies, health concerns, people complaining, moving into a new home, or doing a remodel or renovation project, you should have your entire air conditioning system and air ducts cleaned.

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Excess Dust

Have you noticed that dust is accumulating around your home or office more quickly than it used to? It’s possible that your HVAC system is responsible for your extra housework! If your ductwork is filled with dust, the air flying through your ductwork is picking up that dust and depositing it on your kitchen counters, on your shelves, creating a fine layer of dust over your cup of coffee in the morning.

Over time, all that dust that has settled into your ductwork builds up. Then when the air conditioner kicks on, the airflow sends the extra dust all the way out of the ductwork and out of the vent, where it lands on your computer screen, your desk, your shelves, and everywhere.

Debris/Stuff Blowing Out

When you get into your office or kitchen table in the morning, do you find little particles of dust or black stuff scattered all over your desk? When you look up, do you see blacks stuff dangling from the A/C vent overhead? If so, then it’s definitely time to have those ducts cleaned.

Ductwork in commercial buildings is often lined with fiberglass insulation, which not only helps the cold air stay cold as it moves from the A/C unit to your office but also reduces the humming mechanical A/C noise from traveling through the ductwork. Over time, the insulation can deteriorate, especially if it has been infected with mold. Once the insulation starts deteriorating: it starts blowing out, leaving little specs of dirt and mold.

If this sounds like your office or home, give Power Vac America a call to solve these problems.

Request a Quote   713-645-4611


Sometimes the fungal growth in the HVAC system is so pervasive that it literally begins to climb out of the air conditioning system and into your home.  This is a surefire sign that you need to have your ducts cleaned.  It’s important to note that this fungal growth can’t be solved by simply cleaning the outside of the vents.  The inside of the ductwork is going to be just as infected.

One of the hazards of living in Houston, or anywhere along the Gulf Coast, is that along with all that moisture that we get in the air, we’re also getting a lot of mold spores. For the most part, this isn’t a big deal, it’s just a fact of life—there will be mold spores in the air. But, if those mold spores end up settling in your air ducts, and the conditions are right for them to become comfortable there, then you’ve got problems.

An obvious sign that moldy locks is on the loose in your home or office is that you’ll find little specks of black stuff growing around the air vents. Or maybe you’ll see little specks of black stuff on your desk when you get into the office in the morning.


In the photo above, mold has begun to grow on the tiles surrounding the ceiling register. And while those ceiling tiles might look bad from the outside, that type of growth is a good indication that the inside is much worse. Over time, the dust that settled into this ductwork becomes contaminated with bacteria and fungal matter, which then becomes a food source for the mold. If untreated, the bacteria and fungi will continue to grow until it forms an almost solid layer of mold like the one that you see below.


After a construction project, it is critical to have your HVAC system cleaned. For both residential and commercial, the General Contractor will be running the air conditioning system for both temperature and humidity control. With the systems running, the construction dust is pulled into the return air system and circulates throughout the system. When the systems are not running, the dust simply settles inside of the supply ductwork.

Even if your building has great air filters installed, you’re still going to get some particles that escape the filters and settle into the ductwork. Dust can also build up in your HVAC system if you’ve done construction in your office or building, such as replacing carpet or sanding floors. Are you constantly dusting off your computer screen? Do you notice a layer of fine dust on your shelves?


Are there musty odors wafting through the air, and do they mysteriously disappear when the A/C is off? If so, it’s possible that there is fungal or bacterial growth in your A/C’s air handler unit or in the insulation just inside the vent covers. These odors are caused by mold or mildew inside the HVAC system. Power Vac America can clean and treat these areas and make sure that your home or offices stops offending your olfactory senses.

Allergies and Health

Have you noticed that you’re sneezing more, or getting headaches for no reason when you are at home or at your office, and then whenever you leave, those symptoms tend to disappear? This is a good indication that there is something in the inside air that’s making you ill, something like mold or dust build-up. Dirty ducts won’t always cause indoor air allergies, but it is more likely with people have more sensitive respiratory tracts, like babies, the elderly, asthmatics, people recovering from surgery or hospitalizations, or anyone else whose immune system is otherwise compromised. In these situations, it’s very important to make sure that the air they are breathing is not causing them to be more vulnerable.

Besides mold, another allergy irritant frequently found in ductwork is pet dander. Even if you do not own a pet, if the previous owners of your home had a dog or cat then you may be suffering from allergies from residual pet dander that is entering the air in your home every time you turn on your A/C.

Read more on the health effects of poor indoor air quality on our website.

Buying a New Home

In the event that you are moving into a home that is new to you, but has had previous owners, it’s always a good idea to have the HVAC system cleaned first. Who knows how many critters have lived in that house over the years, or how many cigarettes were smoked in the various rooms; just as you shouldn’t use the previous owner’s toothbrush, you shouldn’t breathe the previous owner’s air either.

Materials that can accumulate in ductwork over the lifetime of a homeowner include: pet dander, human hair, human skin cells, pollen, dust mite parts, and mold and other fungal infections.

Better to start life in your new home fresh!

New Construction or Remodel

Given the fact that Houston knows only two seasons: summer (hot) and almost summer (not quite as hot), it’s very likely that your A/C will be on throughout any home or office remodeling projects, or perhaps just running as soon as possible as might be the case with a newly constructed home or office. While the cooling air is a necessity in an enclosed space where people are doing manual labor, it can cause big problems for you’re A/C system. The main issue is drywall dust, which is so fine that it doesn’t matter how often you change the filter—if the A/C system was on during construction, there will be dust in the air ducts.

It’s very important to make sure that all the dust and debris is removed; if it remains, drywall dust will build up and can then provide an excellent opportunity for mold or mildew growth… let’s just say, drywall dust is a superfood in the fungi world.

How do our Air Duct Cleaning customers rate us?

  • Your guys were absolutely awesome.

    They went out of their way to make sure I was completely satisfied, and they did a great job. Very good with customer relations and I’m in this business so it was a nice change to see someone who really cared about the customer. Thank you. I will definitely recommend you guys

    Home Owner

    Wendy F.

  • I will use them again for sure.

    I am very pleased with the service that I received from PowerVac America. Not only is my system working more efficient with less dust output in my home, Matt Minter explained everything regarding the process and was very polite.

    Home Owner

    Stacey C.

  • Definitely would recommend.

    Our duct and vent cleaning was done very thoroughly and both men communicated everything they did plus provided pictures to show us before and after. Very professional, and very friendly.

    Home Owner

    Rachana P.

  • Thank you for sending the very professional crew.

    Please let them know that we appreciate their hard work and professional attitude.

    Project: Supply Ductwork

    Building: Church in Wharton, Tx

    Commercial Customer

    Henry B.

  • Awesome dryer vent cleaning services!

    Just wanted you to know that Power Vac America, the company you sent to do the dryer vent cleaning were AWESOME! They were clean, professional and efficient…  great crew…

    Project: 10 Dryer Vent Risers

    Building: Eight-story mid-rise

    Commercial Customer


  • Excellent job performing air duct cleaning for our office.

    Power Vac’s work crew did a great job in cleaning our office’s air ducts and air handlers. They performed the work without any impact on our business operation. They cleaned up the work area after each evening and in the morning when we arrived to work the floors, desks, and surfaces were spotless – no mess at all. I am very please with the quality of their work.

    Project: Air handler unit cleaning, coil cleaning, and supply ductwork cleaning

    Building: Commercial Office Building

    Commercial Customer

    Candy K.

  • We plan to continue to keep Power Vac as a preferred vendor.

    The team at Power Vac have been cleaning our duct work for the past 5 years. The guys work with no supervision from the schools maintenance department. They have proven to be trustworthy, professional and prompt. Our teachers have reported a deduction in allergies and better air quality.

    Project: Air handler unit cleaning, supply and return ductwork cleaning

    Building: Garrison ISD school buildings

    Commercial Customer

    David C.

  • Timely Quality and Can Do Attitude!

    Servpro’s Extreme Response Team in Houston, TX has utilized Power Vac America for HVAC air handler and duct cleaning, deodorization and flex duct replacement on retail and commercial fire job losses. We have discovered that Doug Long and his Houston based service group is timely, provides high quality work and always works diligently to meet and exceed Servpro’s clients scheduling and expectations. I will recommend and utilize Power Vac America for ALL of my clients losses. Thanks Doug!

    Project: Multiple projects including air handler unit cleaning and duct cleaning

    Building: Retail and commercial buildings

    Commercial Customer

    Gary S.

  • I highly recommend their air duct cleaning services.

    I have been dealing with PowerVac America for over two years and have never had a bad experience. The owner and folks there have always treated me with respect and helped me understand the process.

    Commercial Customer

    Richard W.

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