Thoughts and recommendation for heat pump servicing

[Satha Palani]

Hi,

Any recommendation on a company / person that does HVAC / heat pump service?  I have 1 rental that i manage myself and everything has been great so far. I am able to take care of minor things myself but HVAC is beyond me. Any thoughts on the pros/ cons of signing up for a annual service contract? 

thanks,

satha