Hansen Super Techs | HVAC, Electrical & Plumbing Mobile AL
Home » Air Conditioning » HVAC and the Mold Menace

HVAC and the Mold Menace

Jul 8, 2021 | Air Conditioning, General

One of the last things any homeowner wants to hear, you have a mold infestation in your air conditioner. While it’s nice to think we could remove a hundred percent of mold & spores from the home it just isn’t possible. Spores are always present floating around the air & aren’t generally a major problem unless moisture conditions are met allowing for growth. Three main conditions that create the perfect environment for it to take hold are inadequate ventilation, condensation, & humidity. 


Poor ventilation makes it difficult for stagnant damp air to leave your home. These pockets of air filled with moisture settle leaving mold a place to develop. Common areas to have this problem are the bathroom, windows, and closets. A big red flag, condensation consistently developing on cooler surfaces like windows.


Condensation occurs when the air is cooled to a certain point or there is enough moisture to create droplets. Normally as it runs, HVAC systems remove vapor and send it through the condensate drain line. If there is a problem with this function due to clogs or a breakdown, the water pools making it a very suitable place for mold to grow.


Consistently high humidity along the coastline makes preparing for and preventing mold growth a top priority. Daily activities such as cooking, laundry, and showering also contribute to the amount of moisture within the home. These two factors are considered the number one reason for HVAC mold.

How can you tell if there’s mold in your HVAC system?

One of the most obvious signs is a musty stagnant odor especially near vents, ducts, and the unit itself. You or your family have symptoms that include allergic responses, headaches, nausea, and fatigue that clear when you are away from the home. Growth may also be spotted near vents, air ducts, or around the indoor unit. It’s important to call professional assistance to quickly take care of the issues to prevent further health issues for you & your family and damage to the home. They’ll be able to quickly find the source of the problem and either fix the issue or be able to recommend a solution that works for you. Preventing mold growth before it ever starts is even better.

What can help prevent mold in the air conditioner?

Semi-annual routine maintenance will keep your system running at its peak and find trouble before it begins. Indoor air quality systems are designed to purify the air with up to 99% removal of particles and spores. Dehumidifiers are a mechanical system that is suited for whole-home moisture control while also removing volatile organic compounds & particulate matter. Ultraviolet lights eliminate & stop growth on problematic areas of the HVAC system.

If you think you may have a mold problem in your AC system or need maintenance, give us a call today!