How often should I have my HVAC system serviced?

We recommend servicing your heating and cooling system at least once a year—your air conditioner in the spring and your furnace in the fall. Regular maintenance helps improve efficiency, extend the lifespan of your unit, and prevent costly breakdowns.

What are the signs that my HVAC system needs repair?

Common signs include uneven heating or cooling, strange noises, increased energy bills, weak airflow, and frequent cycling on and off. If you notice any of these issues, it’s best to schedule a professional inspection to prevent further damage.

How can I improve my HVAC system’s efficiency?

To maximize efficiency, replace air filters regularly, keep vents unblocked, seal any drafts in your home, and schedule routine maintenance. Upgrading to a programmable thermostat can also help regulate temperatures more efficiently.

How do I know if I need to replace my HVAC system?

If your system is more than 10-15 years old, requires frequent repairs, struggles to maintain consistent temperatures, or causes high energy bills, it may be time to consider a replacement. Inquire for more details.

Do you provide electrical services?

Yes, we offer minor residential electrical work. If you need assistance with small electrical projects, we’re happy to help! Inquire for more details.

Correa Heating & Air Conditioning

Professional Service With A Personal Touch

(815) 910-9876

Established in 2009

Located in Mendota, IL

- Roy B. 1/17/2026

"Fast service on a cold weekend. The quality, knowledge and value are all the best. I highly recommend Correa Heating and Cooling for any of your HVAC needs."