As summer ends and a crisp chill returns to the air, it’s time to give your HVAC system some extra care. It has worked hard for you during the hottest days of the year, so ensure it’s ready for cooler temperatures to enjoy a comfortable home and low energy bills all season long. Use these HVAC maintenance tips specifically for the fall to minimize expensive repairs.

5 HVAC Maintenance Tips for Autumn Weather

1. Clear the Area Around the Outdoor Unit

If applicable, keep the area around your outdoor unit clear of debris. Sweep away any leaves and twigs, remove all debris from the unit itself with gloved hands, and wipe it down to clear pollen buildup. Debris on and around the outdoor unit interfere with airflow.

2. Insulate Your Attic

Add insulation to your attic to prevent fall and winter heat loss. Heat rises and easily escapes uninsulated attics, something especially detrimental during snowstorms. Attic heat melts snow on your roof, only to refreeze along the edge, forming dangerous ice dams.

3. Clean the Filter & Vents

HVAC maintenanceDirty, clogged filters cause the HVAC system to work overtime and shorten its life span, in addition to lowering the air quality in your home. Replace the filter once per season for optimal HVAC system performance.

Use the brush attachment on your vacuum to clear the registers around your home of dust buildup, so air can circulate throughout the space quickly and easily.

4. Program Your Thermostat

Program your thermostat in light of the fluctuating fall temperatures, or get a programmable thermostat installed. Changing the thermostat several times a day causes energy bill spikes. You can always wear extra clothing or use blankets if you do not want to change the thermostat setting.

5. Schedule a Professional Inspection

Schedule a professional HVAC system maintenance check to identify any potential issues now. HVAC contractors routinely recommend annual inspections in the fall, so they can make repairs before the cold weather starts. Depending on the age of your system and the number or scope of repairs, you may need a replacement.


Schedule an HVAC maintenance appointment today with Denning Sheet Metal for the best service in Flathead County, MT. As a commercial and residential HVAC service company for over 40 years, they provide 24/7 emergency repairs, as well as personalized solutions to your heating and cooling issues. Call (406) 892-0111 to speak with a friendly representative, or visit them online to learn more about their services.