If you’re ready to schedule an HVAC tune-up in Winston-Salem, NC, look no further than Thermo Direct for all your HVAC maintenance needs. Most HVAC manufacturers recommend that homeowners schedule a tune-up for their units at least once annually (or even once in the spring and once in the fall). A tune-up helps keep your unit operating at optimal efficiency. Tune-ups also identify any issues with the HVAC system prior to the commencement of summer or winter weather.