Mr. Roque Lopez Gutierrez is an excellent and highly knowledgeable Air Conditioning and Heating Technician!! I am thoroughly satisfied with the service he rendered to my heating system within the Heat Pump as well as his advice on upkeep which I can do regularly to prolong the existence of my current heating system within the Heat Pump. Mr. Gutierrez is a very thorough and knowledgeable technician which Alaskan Air Conditioning and Heating should do everything within the CEO's power to keep on staff as a Service Technician as well as a trainer of incoming Service Technicians. Because of Mr. Gutierrez's thoroughness in servicing the heating sytem here, I will regularly call on Alaskan Air Conditioning and Heating for upkeep on the system and request that Mr. Gutierrez be the Technician. Also, I will highly recommend Alaskan Air Conditioning and Heating to all of my neighbors due to Mr. Gutierrez diligence and professionalism.