We are extremely pleased with Ron's professional and thorough maintenance of our AC system on Friday Sept 4th, 2020!! His polite and friendly demeanor was also a huge plus!! We look forward to his excellent service for upcoming Oct/Nov heating system's yearly inspection. We have done business with Lartz for many years, during which they have taken great care of our central air conditioning and heating system... we attribute it's continued good performance to their topnotch yearly maintenance and inspection routine!!! Thank you, Ron! Thank you, Lartz Heating and Air Conditioning!