Guest Controls is a multi-faceted service and supply company operating in the oil and gas industry. We build and supply equipment to the oilfield for combustion, electrical and instrumentation, SCADA, valves, and so much more. Our business is built completely upon customer service, and we pride ourselves on looking after our valued customers. We treat our staff and customers like family.

MEET Our Office Team


Fred Sirett


Fred has been with Guest Controls for 16 years and is a former Bob Jack's Sheet Metal employee. He takes great pride in providing customers with the highest quality of service.
“I am passionate about setting the standard for high-quality work and making my staff feel like family.”
Fred's greatest pleasure is being the BEST Dad possible to Lilly, Luke, and Ben.


Sheldon Sirett

Operations Manager

Sheldon has been with Guest Controls for 11 years and is a former Bob Jacks Sheet Metal employee. Sheldon lives in Lloydminster with his son Daxton, and is privileged to work under the same roof as his oldest son Wyatt.  

He believes in committed customer service and craftsmanship. “This is the OUR standard”.

Tanya Reid

Executive Assistant

Tanya joined our team just shy of a year ago but mostly it feels like she has always been with us.“I take pride in being apart of a business/team that is constantly evolving with the industry. It’s a breath of fresh air to know the work you do is appreciated and doesn’t go unnoticed. I am Happy to call this team my second family.” Tanya and her boyfriend Alex have a son named Jax!

Marilyn Glencross

Account Manager

Marilyn has been with Guest Controls for 11 years. She grew up in Maidstone and now lives in Lloydminster with her husband Greg and dog Diesel. “I am happy to be a part of a caring team that treat me like family.”

Chad Guest

Safety Manager

Chad grew up around Guest Controls. His father, Brian Guest, started the company in 1978. Chad has been around or involved with the company his entire life. He obtained his Mechanical Engineering Degree from the University of Saskatchewan and has utilized it in the design of several products for the company. Chad came back to the company as an owner in 2001 and now enjoys working alongside is oldest son Chase. He believes in, "Exceeding customer expectations everyday."

Kelly Kobes

Service Manager

Kelly has been with Guest Controls for 24 years. Kelly has his Journeyman Instrumentation and also a Bachelor’s Degree in Education. Kelly has been married to his wife Marlisa for 27 years and they have 3 sons, Terix, Aden, and Jaks. When Kelly isn’t at the office he can be found at Bright Sand Lake, enjoying his time with his family or running to the rink to watch one of the boys play hockey.

“I like working at Guest because it’s a very laid back dynamic and the people are great.”

Leah Davidson


Leah has been with Guest Controls for 1 ½ years and in the oil and gas industry for 8 years. Outside the office Leah loves being active and embarking on new adventures with her 5 year  old son Deacon.

“I am very proud to be apart of the Guest Controls Team. I truly feel no matter what we as a business and company are always evolving.”

Jenna Dixon


Jenna has been with Guest Controls for 2 years. She lives in Hillmond with her boyfriend Cole and their French Bulldog Duke. When Jenna isn’t at the office she is coaching Cheerleading at Explosion Gymnastics. “I love coming to work everyday. I feel like I am a part of one big family”

Mel Milford


After joining the Guest/Shield Family in a temporary, data-entry position, I was lucky enough to have them ask me to stay permanently. I  am originally from Big River, SK and have been living in Lloydminster with my husband, Larry for 15 years. we like to travel whenever we get the opportunity, but while at home, life on the acreage keeps us busy. “I'm grateful to be part of this team and look forward to learning and growing with everyone here.”

Riley Weinrauch


Riley is originally from Taber, Alberta but has spent most of his life in Lloydminster. Riley has been in the oil/gas industry for almost 9 years and comes from a shipping/receiving back round. Riley is a huge sports fan and enjoys spending time at the lake with friends. 

“I look forward to coming to work everyday. The team at Guest Controls/Shield Mechanical are great!"

Cole Payne

Valve Shop Manager

Cole has been with Guest Controls for over 10 years and has been repairing PSV’s for 16 years. Cole enjoys the challenges of the fast and efficient turn-around time Guest provides on PSVs to ensure that customers are back up and running as quick as possible. When Cole is away from the office he enjoys trips with his wife Angie and their 3 kids Cobi, Kylor, and Kinley. He also can be found taking the kids to events or helping out on the family farm, “Payne Livestock”.

“I take pride in providing top quality service to all of our PSV customers. I also enjoy my co-workers, everyone works together as a team to help out in whatever way possible.”