Slightly different than the other HVAC replacement parts on this list, but no less important, your air filter should be checked regularly and replaced every three to six months as needed. If it isn't, the filter can become clogged, restricting airflow to your home. This in turn uses more energy and wears out the system more quickly, leading to costly repairs.

The start capacitor is what provides the electricity to turn the system on, and the run capacitor provides electricity to keep it going. In other words, the most vital of the HVAC replacement parts. The contactor controls the flow of electricity to the unit's components. They're very important — and also the most likely parts to break in your system.

The compressor is the most expensive HVAC part to replace. It's also one of the most important parts. Its failure can cause breakdowns throughout the rest of the system. If your HVAC system is eight years old or older, it's probably cheaper in the long run to purchase a new unit rather than replacing the compressor.

Your coils get covered with dirt and debris over time. As long as you clean them regularly, they should last a long time. If they're not cleaned, they can become corroded and need replacement. This also leads to a loss of refrigerant.

We stock our service vehicles with a laundry list of additional heating or air conditioning repair parts so that we can handle your heating or air conditioning repair with ease— usually in just one visit. We conduct repairs using only high-quality OEM and universal parts that are backed by factory warranties and our service guarantee.