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The Most Advanced Auto Inspection & Certifications Station in Concord, CA

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STAR Certified Smog Inspections in Concord, CA!

Why Choose D&H Enterprises For Your Smog Inspections?

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.

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Official Brake and Lamp Adjusting Station

When an Official Brake Inspection is performed, one of our ASE-Certified Technicians will determine if any problems exist in your vehicle’s braking system that might cause the system to operate incorrectly or even fail. This inspection includes the removal of your vehicle’s wheels to conduct a general visual inspection. Special measuring devices are then used to ensure that the manufacturer’s specifications of the braking system are met and that no hazards exist.

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Two Locations – Same Great Service!

D&H Enterprises main facility is located at 2689 Monument Blvd, and our secondary location at 2055 Meridian Park Blvd. Give us a call at either shop, and we’ll take care of the rest!

Contact Us – Monument Location

Contact Us – Meridian Park Blvd Location


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 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!

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No Question Is Too
Big or Too Small

2689 Monument Blvd Concord, CA 94520