Yes, HVAC maintenance services are worth it. A maintenance service has proven to be beneficial to a unit because:
It will extend the lifespan of your HVAC. Keeping it running smoothly for longer will save you money on expensive replacement costs.
It helps the unit to run more efficiently, which will help keep your power bills low.
It helps the unit to run more effectively as well, keeping you comfortable through the harshest weather conditions.
It prevents breakdowns and malfunctions from happening later down the road, saving you money by avoiding costly emergency repairs.