Our experts recommend scheduling preventative maintenance at least once a year, especially before summer or winter as the fluctuations in temperature arrive. HVAC systems require consistent tune-ups and maintenance to make sure they last and continue to run optimally. According to Today's Homeowner, an HVAC system should be inspected twice per year.

Residential HVAC systems that may need servicing will often include unusual noises, inconsistent temperatures throughout your home, increased energy bills, and strange odors. If any of these are happening, it’s important to find a licensed HVAC technician and get it checked out.

There are many factors that can influence this decision such as the age of the unit, how often it is used, has regular maintenance has been performed, and more. Finding a reputable, licensed HVAC company to walk you through the options after inspecting your system is key. Generally speaking, our experts agree that HVAC systems over 15 years old that need to be fixed often should probably be replaced.

Here at D & D Heating & Air Conditioning Inc, we suggest regular HVAC maintenance, changing air filters regularly, and keeping furniture away from vents to allow full air flow can all be factors in improving the efficiency of your heating or cooling. 

Your furnace when set at a warm temperature should never blow cold air and may be a sign of an issue. Possible issues could be a thermostat malfunction, being low on fuel, the pilot light not being on, or a clogged filter. It’s best to call someone for HVAC repair if you’ve addressed these issues and the issue continues. 

Your furnace should not be very loud and if it is, we suggest contacting an HVAC company for a cleaning and/or maintenance check. Dirty burners, loose blower components, or failing bearings can all create loud noises in your furnace. 

Sealing air leaks in your existing HVAC ductwork. Make sure all vents are not obstructed, windows are locked, and a programmable thermostat is used. Click on the AeroSeal tab of our website to learn more. 

This may be a sign of low refrigerant levels, dirty unit coils, a clogged condensate drain, or thermostat issues. If these issues have been addressed and the problem continues, it’s best to call a licensed HVAC company to investigate. 

In our experience, most air conditioning filters need changing every one to three months. This can depend on whether there are pets in the home and how often the unit is used.