We are a STAR Certified Smog Station in Concord, CA

Today’s vehicles are sophisticated, computer-integrated machines that are engineered to reduce smog emissions when in proper operating condition. California State regulations require smog testing every two years on certain model years. Non-passing vehicles must get smog repair in order to pass the emissions tests. In addition, Concord, and the whole of Contra Costa County, is an enhanced smog emissions testing area.
This requires the testing of vehicles with specialized smog equipment that can actually simulate on-road driving conditions. D&H uses smog testing equipment that includes the state-of-the-art ESP System One Bar-97 certified five-gas analyzer equipped with a dynamometer and Delphi Evaporative Emissions Tester.

Smog Inspection Testing in Concord, CA at D&H Enterprises
Auto Repair in Concord, CA

Your California Smog Repair Experts

Failing a smog check can be a real headache. Fortunately, D&H is here to make the process as painless as possible. For over 20 years our ASE-Certified Technicians have been keeping the residents of Concord in compliance with California state law. Because we are a STAR Certified Smog Station, we can perform all State required smog repair and smog inspections for the entire Concord area. We are equipped and have the expertise to perform smog diagnostics and smog repair to all systems and components on those vehicles that are residing, commuting, and passing through Concord.

Only quality parts to pass the state inspection

Quality emissions repairs begin quality parts. That’s why we use only OEM and OEM approved components on all of our repairs, to ensure your vehicle passes smog inspection for many years to come.

When it comes time for your smog check, come pay D&H a visit for your California state smog inspection. We’re conveniently located right across the street from the Concord DMV!

Auto Repair in Concord, CA at D&H Enterprises

5-Star rating

"I highly recommend D&H for their integrity and their wonderful workmanship as well as their availability."

Steve W.

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Benefits and Conveniences for Our Customers

  • 3 Years, 36,000 Miles Warranty
  • Nationwide Warranty
  • Courtesy Shuttle Service
  • Vehicle Pickup and Delivery
  • Certified Technicians
  • Full Service Shop
  • In Business since 1995, Owners on Site
  • Friendly Service
  • Competitive Pricing
  • Same Day Service
  • Financing Available
  • Night/Morning Drop Box
  • Factory Parts and Fluids
  • Quality, State of the Art Equipment
  • Free WiFi
  • AAA Membership Benefits
Customer Conveniences

Customer Loyalty: As a family owned repair shop, we’ve always made sure to take care of our customers and community. We participate in fundraising for such programs as Clunkers 4 Charity and cars for careers. We are completely committed to our local Rotary, Clayton Valley/Concord Sunrise and our State Trade Organization, ASCCA. Giving back is our way of saying thanks to our local customers.

Come to D&H Enterprises for the best auto repair in Concord, CA. We look forward to meeting you soon!

No Question Is Too
Big or Too Small

If you are in need of Auto Repair at D&H Enterprises in Concord, CA, or you have any other vehicle needs, D&H Enterprises is the place to go. Give us a call at (925) 356-0683, or stop by our location at 2689 Monument Blvd, Concord, CA 97520. We’ll show you why we are a hometown favorite when it comes to caring for your car, truck, or SUV.

We proudly serve Concord and surrounding communities: Pleasant Hill, Four Corners, Pacheo, and Walnut Creek.