Why Choose Hillmuth?

  • Experience. We have been in the automotive business since 1978.
  • Convenience. Hillmuth has four Maryland service locations to better serve you.
  • Friendly. As a family-owned auto repair business, our staff strives to be personable and courteous.
  • We Care. Hillmuth doesn't just fix cars, we're eager to offer advice and have maintenance programs available to help extend the life of your vehicle.


"Hillmuth always does quality work in a courteous and professional manner."
W. Coopersmith
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Hillmuth Certified Automotive, Inc., Auto Repair & Service, Columbia, MD

Maryland’s Leading Automotive Repair Specialists

Hillmuth Brothers

Doug & Billy Hillmuth

Hillmuth Certified Automotive is a family-owned auto repair business, proudly serving Maryland since 1978. We have four convenient auto service locations in Gaithersburg, Columbia, Clarksville, and Glenwood, MD. Each of our locations is staffed with experienced mechanics and technicians to provide you with quality automotive repair and maintenance for all makes and models of cars, trucks, SUVs, and RVs.

Automotive services we provide include:

  • Replace Turn Drums
  • Complete Automatic Transmission Services
  • Check Brakes, Clean and adjust
  • Brake Fluid Flush and Change
  • Power Steering Fluid Service
  • Maintenance, Replace Spark Plugs
  • Fuel Motorvac Service
  • and more…
  • Emissions
  • Maryland State Inspection
  • Complete Fuel Systems Services
  • Four Wheel Alignment
  • Induction System Cleaning
  • Complete Cooling System Service
  • Air Conditioning Service
  • Brake Service
  • Replace Brake Shoes

Our goal at Hillmuth is to build long-term relationships with our customers and we strive to provide you with the best automotive care in Maryland. For all your automotive service needs, trust Hillmuth Certified Automotive, where your satisfaction is guaranteed!

Thanks for visiting, and we look forward to serving you,

Doug & Billy Hillmuth
Owners, Hillmuth Certified Automotive

Click here to view the areas that we serve

Maryland Auto Repair and Auto Service Areas:

  • Howard County Auto Repair and Auto Service: Columbia (21044, 21045, 21046), Clarksville (21029), Cooksville (21723), Dayton (21036), Elkridge (21075), Ellicott City (21042, 21043), Fulton (20759), Glenelg (21737), Glenwood (21738), Guilford (20763), Hanover (21075, 21076), Highland (20777), Marriottsville (21104), Savage (20763), West Friendship (21784), Woodbine (21797).
  • Montgomery County Auto Repair and Auto Service: Ashton (20861), Bethesda (20814, 20815, 20817), Brookville (20833), Cabin John (20818), Chevy Chase (20815), Damascus (20872), Derwood (20855), Gaithersburg (20882, 20878, 20879), Germantown (20876), Kensington (20895), Olney (20832), Potomac (20854), Rockville (20850, 20851, 20853), Silver Spring (20904, 20905, 20906)