HVAC ductwork is the perfect secluded spot for pests. Those that nest may leave droppings and other debris that taint the air. It’s essential to take preventive steps and schedule an HVAC cleaning and pest control services to get the problem under control.

How to Prevent Pests in Your HVAC System

1. Keep Foliage Off Your Outdoor Unit

Trim back vegetation to maintain a 3-foot barrier of clear space around your central air unit. Insects won’t be able to climb branches to enter the vents or be tempted to nest nearby. It’s also helpful to mount the system on a concrete slab so that ants and other pests won’t build against the side.

Apply an AC cover during the winter if you use a separate heating system and make sure there’s a low slope on all sides of the unit to drain rainwater. Pests require a water source, so remove standing water and perform essential HVAC cleaning by clearing the condensation drip pan if it’s full.

2. Seal Your Ducts

Small breaks in your ductwork are all spiders, ants, and mice need to enter. You can either spot visible breaks during an inspection or find them by listening for light whistling sounds when air is passing through. Apply a small strip of aluminum foil tape to splits or paint on a mastic seal with a brush.

A tight duct system also improves system efficiency. Eliminating air leaks means more cool air circulates throughout your home. You’ll be more comfortable, and your system won’t have to overwork to maintain the programmed temperature.

3. Install Screens

Many pests sneak in through ventilation caps and duct grates. You can seal these without preventing airflow by installing fine aluminum mesh. These holes in these filters are small enough to keep insects and rodents out and strong enough so that they can’t be broken or chewed through.

If you want a clean HVAC system that doesn’t attract pests, contact Air Pro Duct Cleaning in Columbia Falls, MT. These HVAC cleaning professionals will carefully inspect your ducts and remove contaminants trapped inside. Call (406) 752-0652 to schedule an inspection, or visit their website to learn more about their residential duct cleaning services.