Experienced Technicians

Experienced TechniciansYou can have total peace of mind when one of our service technicians comes to service the equipment in your home.

  • The average experience of our field technicians is 17 years. 
  • All lead technicians are NATE certified, a nationally recognized 3rd party Technician Excellence Program. 
  • We provide an average of 530 hours of ongoing training per year. 
  • Our home comfort technicians are certified by the US Environmental Protection Agency for the proper handling of refrigerants.
  • We are one of only a few Lancaster area contractors certified in carbon monoxide and combustion analysis by the National Comfort Institute.


“I’ve been a Ranck customer for over 20 years; the technicians are unfailingly polite, helpful and respectful, and perform thorough, professional work. Also Ranck responds in a very timely manner — including emergency situations. I wouldn’t go anywhere else at this point.”  —Barb U., Willow Street

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