About Us


  • USB3.jpg
  • USB8.jpg
  • USB6.jpg
  • IMG_1865.jpg

Platinum Garage is a locally owned and operated, full-service mechanic shop in Gillette, Wyoming. Our technicians are ASE-certified and sure to treat you and your vehicle with respect every time you come to see us. Our services reach every town or city within a 200-mile radius of our shop. We are also the only AAA-approved auto repair facility in a 100-mile radius.

We have been in business since 2006. Our highly trained and experienced mechanics are the lifeblood of our service shop. At Platinum Garage, your car, truck, or SUV tune-up starts with an oil change followed by a system check. If we discover any significant problems along the way, we'll walk you through your options for repair. Our comprehensive service list includes:

  • Oil change, lube, and filter check

  • Air filter replacement

  • Spark plugs and wire replacement

  • Brake check

  • Brake system repair

  • Transmission fluid check and replacement

  • Emergency brake adjustment

  • Air conditioning system check

  • Engine repair

  • Heating and air conditioning repair and service

  • Steering, suspension, and drive train inspection and replacement

  • Diesel repair

  • And more!

Please note that we are not a body shop, and we are not equipped to work on semis.

No job is too big or small for our team to handle! We sell and install B&W hitches and we are a distributor for Thunderstruck Bumper Guards. Whatever your automotive needs, Platinum Garage is ready to help!

We are large enough to serve and small enough to care. Contact us to schedule your appointment today.


Our service advisor team is the liaison between you and our technicians. These ladies are the face of the shop and strive to provide you with the best customer service this industry has to offer every time!

Schedule Today



A mother of 5 with 3 grandchildren, Mandy began writing service in 1994 for her dad at a small independent shop in Moorcroft, WY called Williams Auto Repair. Since that time she has also written service for Thunder Basin Ford in Gillette, WY and Spradley Barr Ford in Fort Collins, CO before coming to Platinum Garage in 2017.

Spending time with her family is at the top of what Mandy likes to do in her free time. When not with them, she can often be found on the banks of the Powder River with her fishing line in the water hoping to catch a record-breaking catfish or sturgeon. She also enjoys spending time in her garden, tending to her animals, and working in her yard.

When it comes to customer service, Mandy says “Communication and honesty are the two most important factors in providing superior customer service.”



With over 20 years of experience in the automotive industry, Tedi Sutherland is a great asset to Platinum Garage Team. She began her career detailing cars at an autobody shop in Buffalo, WY and eventually moved into the office where she learned to write work orders and dispatch work. Tedi spent 14 years at Thunder Basin Ford as both a Senior Master Service Writer and a Certified Service Manager. She also managed the service department at Chuck Deluxe Harley Davidson for 1.5 years.

Family and friends are very close to Tedi’s heart and she enjoys spending time with them every chance she can. When she is not working, Tedi likes to spend time in the Big Horn Mountains camping, riding the Can Am, and riding Harley Davidson Motorcycles. Floating Sand Creek is another favorite past time along with touring the back roads of Wyoming and South Dakota.

When it comes to customer service, Tedi feels “It is imperative to give excellent customer service.”



With 14 years in the customer service industry, Sireena comes to the Platinum Team from The Coffee Cup in Moorcroft, WY where she spent the past 4 years.

A mother of 2 boys, spending time with her children is important to Sireena. Together they enjoy spending time at her parent’s property north of Recluse, WY where they ride horses and go four wheeling. Sireena also enjoys camping, fishing, and hanging out with her 2 dogs.

When asked her feelings about customer service, Sireena says, “Customer service is all about building a relationship with the customer and keeping that relationship, making them feel like part of the family.”


Our highly trained and deeply experienced mechanics are the lifeblood of our service shop. They service all of your automotive repair needs in Gillette, Wyoming, and the surrounding communities. Contact our shop now for all your service needs.

Schedule Today





Platinum Full Service Garage 2014-Current

Avalanche Motors 2008-2014

Newcastle Motors (Service Manager) 2003-2008

Certifications / Awards:

ASE Certified

Air Conditioning Certified

Ed moved to Gillette in the 80’s however he considers Gillette his home and calls himself a native. During his time away from work he enjoys spending time with his children and grandchildren, working around his cabin, ATV’ing, and on many of the UW home games, you can find him in Laramie using his Green Mountain Grill to tailgate. He donates his time (and his grill) in the summers to compete in the Smokin’ on the Prairie Charity Cook-Off. Ed not only works on all makes and models of vehicles but he also repairs trailers, replaces windshields, RV and boat winterization/repair, and some fabrication. If it has nuts and bolts Ed can fix it!

Gage Markve.jpg




Thunder Basin Ford

About Gage:

Gage Markve grew up on a farm in the Gillette area and graduated from Campbell County High School. If he's not working Gage can be found hunting, fishing, riding his motorcycle, or simply enjoying the view from his front porch. Gage is very family-oriented and spends every possible minute he can with his son. While Gage's passion is diesel engines, he enjoys a challenge and is willing to work on whatever may come his way.





ASE & ATRA Certified

Associates Degree in Automotive/Diesel

About Bob:

A Campbell County High School Graduate, Robert Burke received his Associates Degree in Automotive/Diesel from Universal Technical Institute while serving as a Motor Transport Operator in the United States Army Reserve.

Both ASE and ATRA Certified, Bob has extensive expertise with both automatic and manual transmissions and is skilled in all aspects of auto repair. Bob is experienced with both foreign and domestic vehicles and enjoys working on both.

When he is not busy turning wrenches, spending time with his wife and children ranks #1 with Bob. He also enjoys hunting, shooting, and riding his motorcycle.

With 30 years of experience, Bob’s focus has always been on customer satisfaction.





Platinum Garage: July 2021 – Present

Firestone Complete Auto Care (Lead Technician): 2019 – July 2021

Agfinity, Inc Greeley Car Care Center (Service Manager): 2017 – 2019

Agfinity, Inc Eaton Car Care Center (Store Manager): 1998 – 2017

Army National Guard (63X Maintenance Supervisor): 1997 – 2013

United States Army (63B Light Wheel Mechanic): 1993 – 1997


ASE A1 Engine Repair

ASE A4 Steering and Suspension

ASE A5 Brakes

ASE A6 Electrical/Electronic Systems

ASE A7 Heating and Air Conditioning

About Glenn:

A retired 20-year Veteran, Glenn Marshall comes to Platinum Garage with over 25 years of experience in the automotive industry. Glenn is well versed in all areas of automotive repair including tires, diagnostics, basic maintenance, inspections, brakes, steering and suspension, heating & air conditioning, as well as both engine and electrical repairs.

Glenn’s wife, children, and grandchildren are at the top of his list of favorite things. During his off time, you will most likely find Glenn with his family. Whether it be working around their home, cheering on the local hockey team, or exploring a new fishing hole, Glenn values the time he spends with his family. Glenn is also a huge supporter of any team that his grandchildren are playing on.

When it comes to customer service, Glenn feels that “The needs of the customer come first helping to ensure the total health of the vehicle.”