Top Rated Smog Test Shops Serving Contra Costa County, CA

If you really care about choosing a quality smog test shop, we’re here for you. Here’s your access to the best smog test shops serving Contra Costa County including 94565, 94509, 94806, 94513 and 94553. These smog test experts provide smog tests and vehicle inspection programs, and they also work on tailpipe emissions, smog certification and pollution control measures. For 22 years we’ve conducted the most accurate ratings and deepest research of local shops, so you’ll be confident in choosing.

Last Updated Nov 21, 2023
8,530 people sourced companies in Auto Smog
1,429 Verified Auto Smog Customers Surveyed

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Dublin Car Tek

Dublin Car Tek is a Dublin-based general repair shop that works on foreign and domestic vehicles for Alameda and Contra Costa County motorists. The co...

Main Services

Auto Repair

Additional Services

Air Conditioning, Brakes, STAR Smog Checks & Repairs, Transmissions, Tune-ups, Heavy Duty Fleet Services, Tires, Batteries, Radiators, Factory-Recommended Service, Suspension Work, “Check Engine” Light Diagnosis

Brands

ACDelco , BMW , Chevron , Mercedes-Benz , Mobil 1 , Motorcraft , Valvoline

Coverage Areas

Contra Costa County, Alameda County

Family Owned

Established in 1999

Special Discount

Residential & Commercial

Diamond Certified Video Profile

Diamond Certified Company Report

Tim Johnson, Owner

Expert Contributions

586
Rating Surveys

11
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(925) 335-6938

6008 Dougherty Road, Dublin, CA 94568

Hours CLOSED NOW

License:

177039

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Delta Transmission

Delta Transmission has been servicing, repairing, replacing and rebuilding transmissions at its Antioch facility since 1958. In addition to general tr...

Main Services

Auto Repair

Auto Transmissions

Additional Services

Transmission Rebuilds, Differentials & Transfer Cases, Brake Pads & Rotors, Free Diagnoses on Transmissions & Differentials, No Engine Repairs, Drive Shaft Balancing, Shortening & Lengthening, U-Joint Replacement

Coverage Areas

Contra Costa County

Family Owned

Established in 1958

Free Quotes & Consultations

Free Estimates

Diamond Certified Video Profile

Diamond Certified Company Report

Chester Kniss, Owner

Expert Contributions

390
Rating Surveys

11
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(925) 709-4984

1105 Sunset Drive, Antioch, CA 94509

Hours CLOSED NOW

License:

247427

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autoTech Blackhawk

AutoTech Blackhawk repairs and maintains all types of European, Asian, and domestic vehicles at its Danville facility. The company has the expertise a...

Main Services

Auto Repair

Additional Services

Auto Repair & Maintenance, European, Domestic & Asian Vehicles, Electrical Diagnostics, Tires & Alignment, Air Conditioning Systems, Brakes & Suspension, Timing Belts, Fuel Injection Systems

Brands

Bosch , Interstate Batteries , Liqui Moly , Mobil 1 , Cooper Tires , Falken Tires , Continental Tires , Pirelli , Toyo Tires

Coverage Areas

Contra Costa County

Family Owned

Established in 2018

Appointments Available

Financing Available

Diamond Certified Video Profile

Diamond Certified Company Report

Kacey Copeland, Owner

Expert Contributions

303
Rating Surveys

34
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(925) 388-6924

3600 Camino Tassajara, Danville, CA 94506

Hours CLOSED NOW

License:

292861

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Letcher Brothers Auto Repair

Letcher Brothers Auto Repair services most types of European, Japanese, American and fleet vehicles at its Pinole facility, handling everything from g...

Main Services

Auto Repair

Auto Tires, Wheels & Alignment

Auto Transmissions

Auto Muffler & Brakes

Auto Diagnostics

Auto Repair - Electrical

Additional Services

Automotive Repair & Maintenance, “Check Engine” Lights, Electrical Work, Air Bags, Transmissions, Suspensions, Anti-Lock Braking Systems (ABS), Alignments, Computer Diagnostics, Tires

Coverage Areas

Contra Costa County

Family Owned

Established in 1991

Free Estimates

Appointments Available

Diamond Certified Video Profile

Diamond Certified Company Report

Mike Letcher, Owner

Expert Contributions

302
Rating Surveys

15
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(510) 926-6069

636 San Pablo Avenue, Pinole, CA 94564

Hours CLOSED NOW

License:

179974

Learn how to choose a Auto Smog and more…

Diamond Certified Smog Test Shops In Contra Costa County

Diamond Certified smog test shops serving Contra Costa County are rated an average of 4.6 out of 5 stars based on 1766 reviews of 18 rated smog test shops.
Diamond Certified smog test shops in Contra Costa County Avg. Star Rating.

Contra Costa County was founded in 1853, and today, your 1,123,844 neighbors use smog test shops for smog tests, smog repairs, diesel smog, smog tests, OBD-II (on-board diagnostics) systems, and more.

Frequently Asked Questions for Auto Smog in Contra Costa, CA

Q: What are customers of Diamond Certified smog test shops saying about shops in Contra Costa County, CA?

A: Verified Dublin Car Tek Customer, one of 586
"They know how to get the job done. They know what they are doing. I know they know how to do the job correctly and solve my problems. I like their customer service the best. They are so friendly and helpful. I really have no complaints about them." -Michael R.
All Survey Responses for Dublin Car Tek
Verified autoTech Blackhawk Customer, one of 303
"They can be trusted and they do good quality work. It has been a while, but I trust them." -Jade S.
All Survey Responses for autoTech Blackhawk
Verified Delta Transmission Customer, one of 390
"So good, I just had to snug the pan and it's good. I've recommended them to friends. I got in quickly and out pretty quickly" -D.L.
All Survey Responses for Delta Transmission
Verified Antioch Napa Auto Care Customer, one of 100
"They are nice people. They are thorough." -Lisa P.
All Survey Responses for Antioch Napa Auto Care
Verified Letcher Brothers Auto Repair Customer, one of 252
"It is a pretty decent shop. They were available when I needed them." -Upen R.
All Survey Responses for Letcher Brothers Auto Repair

Q: What are some of the most popular brands that Diamond Certified smog test shops use when working with Contra Costa County residents?

A: Diamond Certified smog test shops use top-quality brands like Vibrant Performance, Dynomax, MBRP, Injen and Bully Dog.

Q: What types of smog tests do smog test shops offer?

A: Smog test shops typically offer two main types of smog tests: the out-of-state smog check and the regular smog inspection. The out-of-state smog check is for vehicles registered in another state but are required to fulfill California smog check standards. The regular smog inspection, on the other hand, is a comprehensive test that includes a visual, functional, and tailpipe emission examination. This is typically required for all vehicles manufactured after 1976. Some shops may also offer diesel smog checks for diesel-powered vehicles, and test-only services for vehicles that are not allowed to be repaired at the same location as the smog inspection.

Q: Can Diamond Certified smog test shops work with MagnaFlow products and similar items so I can get smog tests in Contra Costa County?

A: Yes, Diamond Certified smog test shops can work with MagnaFlow products and similar items for smog tests in Contra Costa County.

Q: What did people search for when they wanted to find the best quality smog test shops in Contra Costa County?

A: Catalytic Converters
Smog Repairs
Vehicle Inspection Programs
Diesel Smog
Emission Testing Equipment

Top Rated Smog Test Shops Serving Contra Costa County, CA

Dublin Car Tek

Main Services

Additional Services

Brands

Coverage Areas

Delta Transmission

Main Services

Additional Services

Coverage Areas

autoTech Blackhawk

Main Services

Additional Services

Brands

Coverage Areas

Letcher Brothers Auto Repair

Main Services

Additional Services

Coverage Areas

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Diamond Certified Companies Serving Contra Costa, CA