The independent family-run garage, which currently employs father, son and daughter among its staff, scooped a prize fund worth over Â£6000.
Owner Keith Kingham said: â€œWe work hard to provide our customers with excellent service and value for money.
â€œWe came up against a lot of strong competition and the Golden Garages campaign goes to show that our industry is full of high-quality, trustworthy garages.â€
Vicki Butler-Henderson presented the top prize after 54 days of nominations, 9000 public votes and the opinions of a judging panel.
â€œWe would like every motorist to receive service from a garage like Kinghams,” said Chris Mason, Motor Codes director.