Doug and Karen Garner started Garner Heating & Air Conditioning, Inc. in late 1988. Doug currently serves as General Manager including securing projects and designing different systems to suit the needs of the customer. Doug and Karen have been married for 30 years and they have a grown son Reagan who serves in the Air Force who is married to Baeli, and a grown daughter Lauren married to Chris. Doug is N.A.T.E. certified in 4 areas of our trade.

Justin Sheffield oversees the day to day operations as the Office manager. Justin’s wealth of knowledge stems from years of managing local small business to large corporate business. Justin has a natural aptitude for management and has come to specialize in operations. Justin is originally from Wimberley, Texas and currently resides in Kyle with his wife Carol, daughter Fantasia and two dogs. His hobbies include disc golf, target shooting and anything outdoors. Email Justin

Ryan Peterson is our Field Supervisor. He will be seen on most system replacements and new construction jobs. He is N.A.T.E. certified in 4 areas of our trade. He has a wonderful family including wife Shannon, daughter McKayla, and son Jake. He attended Angelo State and Texas State University. His hobbies include Hunting, Fishing and Physical Fitness.

Max Bethke He will be seen doing Service Calls, Installation assessments and doing Quality Control. He was born and raised in San Marcos. Max has been with our company since 2005! He is a great father to his 10 year old son (Maddox). Max is a N.A.T.E. certified technician! E-Mail Max

Don Lee is a Senior Sales/Service Technician. His main responsibilities include running service calls & system replacement recommendations. Don is Veteran of both the Army & Navy and participated in operation Noble Eagle after 9/11. He is a N.A.T.E certified Technician. Don has over 12 Years in the trade!

Tad Renteria is our Warehouse Coordinator. He manages our Inventory and orders materials for each job as well as managing limited warranty returns. He also does Manual J load calculations to ensure proper equipment sizing for our new systems.

Ethan Deaver is one of our top Installation experts. His attention to detail and concern for quality is what makes him shine. Ethan is EPA certified and is working on his NATE certification!

Brittany Cupp is our CSR/Dispatcher and will most likely be the one who takes your call and gets you on our busy schedule. She is also in charge of maintaining our Maintenance Club! Brittany recently trained with the legendary Ruth King! Glad to have her on the team!