Mold Remediation

All Star-Duct Cleaning provides the top services in Virginia, Maryland, Washington DC and West Virginia for indoor air quality, ventilation systems, air duct cleanings, mold remediation and more!

If you see black stuff on your air vents it is most likely mold and dust build up. Mold can be found where there is poor indoor air quality, moisture source and food source. An example is a dark damp place such as a basement with no ventilation and a leaky condensate drainpipe. That is the perfect place for mold to start. Preventive maintenance can save your health, property and a lot of money.

There are millions of mold types. Mold can be grey, pink, black, white, green and brown. Most humans contact mold through inhalation or direct contact. Mold can produce symptoms in humans in numerous ways. Part of the problem is that symptoms of mold exposure can be confused with colds, flu and pollen allergies etc. not realizing it could be your home or air ventilation system getting you sick.

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  • Sinus problems including sneezing and runny nose
  • Dry, itching or burning eyes
  • Headaches
  • Dizziness
  • Tremors
  • Fatigue
  • Depression
  • Memory loss
  • Low grade fever
  • Skin rashes or hives
  • Suppressed immune system
  • Nausea or digestive problems


We perform an onsite inspection with a contaminant swab to test first. This will tell us if there are any active contaminants. Any shade of green is not active and or living, and any shade of purple is active and living. Just because you see mold does not always mean it is alive. A sample is sent to a lab for diagnosis. This will tell us what kind of contaminants were found, where they come from and the side-effects in humans.

All-Star Duct Cleaning uses EPA registered microbial sanitizers to kill and treat active mold, contaminants, bacteria, feces, H1N1, Covid-19 and more. This is applied by a fogger device. This coats the entire air duct and vent system killing any living contaminants. We also have a microbial coating to treat and seal out mold/rusty surfaces. This product has been lab tested and certified by the EPA to effectively work for 10 years or more. This is an option instead of cutting out the damaged duct work, wood or hvac canvas and replacing it. This process is known as (bold) "Encapsulation"(bold). Significant amounts of mold growing on drywall may need to be removed instead of encapsulated. Sometimes mold will grow through the drywall and you can only see the surface side.


A "Mold Certification Clearance Document" certifies that the mold has been remediated or tested negative for active growth. And the air duct system is safe for operation and/or the dwelling is deemed safe for living occupancy. This document is a legal certified document that can only be signed by a licensed CRMI. Some insurance companies require this to cover a claim.