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How to Keep Pests Out of Your HVAC System

Season changes in Southern California mean unwanted visitors. No, we’re not talking about your in-laws, we mean bugs. When the weather heats up outside, pests look for protection inside. Although it may be tempting to just go to the beach and leave all your worries behind, ignoring pest problems can have major consequences.


Most homeowners do not realize that their HVAC system is usually the path of least resistance for bugs. Taking measures against pests can help to prevent structural damage and health hazards that can be left behind by these unwanted guests.


There are simple things you can do to prevent pests from making themselves at home in your system:


Check Your Ducts

The quickest way for pests to enter your home is through holes, or gaps in your duct system. Vermin, especially mice, can squeeze through holes the size of a dime. In addition to possibly damaging equipment, droppings left behind by pests can lead to serious indoor air quality issues.


If you are worried about the state of your ducts, we recommend scheduling for a professional inspection. Consider adding routine pest control services to your seasonal checklist. It is the most effective way to prevent infestations. If you have recently suffered a pest infestation, make sure to have your ducts professionally cleaned immediately after the pests have been eradicated. This will ensure that the air quality in your home has been restored.


Protect Your Vents

Pests love the darkness of flue pipes and exterior vents, especially when they need a place to build a new nest. Protect your thresholds by installing vent covers on all exterior flues, intakes and exhaust pipes. An added bonus is that vent covers will keep rain water out, which will keep your vents/flues dry and prevent any future mold issues.


Keep Your Condenser Safe

Protect your HVAC system by keeping your air-conditioning condenser out of harm’s way. Insects and vermin can cause damage to your exterior condenser if they have access to the outdoor unit. They are free to chew and scratch the unit if they have access to it. This can lead to expensive repairs or replacements.  


Keep your condenser safe by regularly cleaning the surrounding area and removing any debris.


For more HVAC tips, follow us on Facebook. If you have any questions or would like to schedule a maintenance appointment, please contact us at (866) 830-5444.


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Gladd Heating and Air Conditioning is a family owned and operated company. Gladd team members have service Orange County/South Los Angeles areas

Our goal is to “Simply be the best”. We provide expert, professional and personable service because our technicians are focused on fixing your equipment and not on upselling you with unnecessary repairs or new equipment.


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