What To Do If You Find Mold in an HVAC System

For HVAC specialists, spring is a busy season. Pre-summer system cleanings are plentiful, as nobody wants poor indoor air quality – especially during summer months when the air conditioning is running and likely recirculating your air around the clock. Many times, you’ll discover mold in drip or condensation pans, in ductwork, or around vents.

HVAC moldAs you know, dust and debris collect in HVAC and heating units over time. When those materials absorb moisture, mold can form quickly.

If you find mold on a job, stop work immediately so that you don’t spread the mold and cross-contaminate other areas of the residence. Then call RTK for a mold assessment. Since RTK only tests and never remediates, you can be assured our results are unbiased and accurate.

How does mold impact the homeowner? During summer months, condensation often occurs in HVAC units and ducts, and this can lead to mold growth. Then, once the heat or A/C is turned on, microscopic mold spores can easily spread and contaminate clean spaces anywhere else in the building.

Signs of HVAC Mold:

  1. There is a musty smell in the dwelling.

  2. The homeowner is experiencing allergic symptoms, which may include a runny nose, trouble breathing, rash, or watering eyes.

  3. When the homeowner turns on the heat or A/C, they complain that their nose, throat, and eyes feel irritated.

  4. The homeowner suffers from unexplained headaches that go away when they leave the premises.

  5. They feel nausea, fatigue, and dizziness only when they are home or at the office.

  6. You see mold growing in the intake vents and around the air ducts and drip pans.

  7. There is staining around the vents.

mold iaqIf you find mold in an HVAC system, the best course of action is to have the system tested. An independent company, like RTK, can assess whether your client will be spreading mold spores when the heat is turned on.

Mold and VOCs (volatile organic compounds) are the most common causes of indoor air pollution and can easily be tested for and treated. Call us at 800.392.6468 to schedule a test or learn more.

Each year mold destroys more wood than all the fires and termites combined. (Luke Armstrong, 2016)
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charles morgan
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John was great. Explained everything along the way. Took 9 samples. Look forward to getting full report
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leo pasten
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Excellent services from the beginning to the performance of the test. Thanks for all the time spent in our job. John and Oscar we are very grateful. Leo
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R R (RR)
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Tom was extremely helpful, informative, thorough, and polite. Thank you!
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Angela Welcome
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The expert was prompt and extremely o knowledgeable. He explained every step as he performed the test. Also gave good tips on cleaning the air and safe products.
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Heather Sherman
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Our tech was very knowledgeable and explained everything to us regarding his assessment in a way that was way to understand.
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Mike McCready
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Ron was knowledgeable, professional, and explained things very clearly.
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Matt Wang
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Ron was very thorough and knowledgeable - we appreciated his expertise, demeanor, and professionalism. Would call again
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Carol Dominick
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Tom was great! On time, professional . Cant say enough about him. Many thanks
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Kevin Corbin
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Great guy, professional and social.
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