Mark Jackson

Company Owner

Mark Jackson is the hands on owner of All Air Systems. He has a passion for business and technology, two areas that serve him well in his efforts to help customers have the best HVAC experience possible. He believes that quality, comfort and efficiency are important components of each customer experience and he goes out of his way to make sure that these expectations are met.

Mark grew up in Webster Groves, MO, and has lived in Kirkwood for more than 30 years. He and has lived in and renovated several older homes, giving him well rounded experience with the unique heating and cooling needs of older houses. He and his wife Judy have five children—two sons whom are both pilots in the United States Air Force, and three daughters; they also have a daughter-in-law, a son-in-law, and two grandchildren.

Mark and the staff at All Air Systems invite YOU to experience the All Air Difference.

Kathy Ebert

Office Manager

Kathy has been managing operations for all Air since 2002, ensuring that the day to day operations of All Air contribute to the well being of our customers and the professional growth of employees. Kathy oversees all aspects of human resources, technology, marketing, and customer relations. She has a BSEd from the University of MO, Columbia. She is a creative, versatile, and valued asset to the organization.  Kathy enjoys spending her free time with her family and friends, gardening, and traveling as much as possible.

Donna Zamarripa

Administrative Assistant

Detail oriented, professional, and friendly are just few words that describe Donna. She is able to multi-task and balance numerous responsibilities that keep the office running smoothly. Donna has a strong accounting background and excellent customer service skills which make her a valued member of the All Air Systems team. In her leisure time, Donna is usually cooking, listening to music or beating someone at a game of pool.

Mark Jones

Lead Service Technician and Installer

Mark started in HVAC in 1980. He is an excellent service technician and installer. As a former HVAC instructor, Mark has a wealth of knowledge and expertise that he shares with the other members of the team. He has an HVAC Certificate from Ranken Technical College. When he is not running service, Mark enjoys hunting, fishing and playing golf. Mark and his wife have 2 grown sons.

Nick Goers

Lead Service Technician and Installer

Nick joined the All Air Systems team in 2011, but he has been working in heating & cooling since 2001. He brings a great deal of knowledge and experience in HVAC to All Air, and is a welcome addition to the team. Nick is an avid outdoorsman who enjoys hunting, 4 wheeling and hanging out in the country with his family when he is not pranking the office staff.

Harry Hill

Lead Service Technician and Installer

Harry brings his positive attitude and pride in his work to the All Air Systems team. Harry is a member of both our install and service departments. He has an HVAC Certificate from Vatterott College. Harry has a great work ethic and our customers love him! In addition to sports, Harry enjoys cooking and paintball in his spare time.

Feng Gao


Feng graduated with a 4.0 GPA and perfect attendance earning his Associate’s degree in HVAC from Vatterott College. Prior to entering the HVAC field, Feng earned a Bachelor of Science degree in Application Electronic Technology from Harbin University of Science & Technology. He is a dedicated and hardworking member of our install team. Feng enjoys reading, fishing and playing with his kids in his free time.

Ryan McCormick

Service Technician and Installer

Ryan started in HVAC in 2013 and is a graduate of Ranken. He brings his “can do” attitude and to both our service and install teams. Ryan has quickly built his skills in service, installation, and customer relations. When not working, Ryan enjoys paintball, fishing, bowling and working on cars.

Mike Brown

Service Technician/ Installer Apprentice

Mike brings his easy-going personality and attention to detail in his work to the All Air Systems team. For 9 years Mike worked for a concrete company before deciding to make the switch to HVAC. Mike is a Ranken graduate who eager and quick to learn. He is a member of both our install and service departments. In addition to spending time with his wife, Mike enjoys fly fishing, video games and DIY projects when he is not working.