Best Emissions Testing & Smog Check in Diamond Bar, CA

The highest-rated Emission Repair Service and Smog Check companies out of 131 vetted & reviewed in the Diamond Bar area.

Auto Squad Repair

Auto Squad Repair

(47)
  • Efficiency
  • Price
  • Hands
“Services Transmission, Auto battery replacement, Auto water leak repair, Vehicle Inspection, Auto battery maintenance, Vehicle safety inspection, Auto maintenance, Auto brake replacement, Oil change”
780 N Diamond Bar Blvd B6, Diamond Bar, CA
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Diamond Bar Auto Service & Body

Diamond Bar Auto Service & Body

(17)
“The mechanic had a nose around under the hood and under the chassis, showed me the problem, reassured me that i could manage it until i got home to my regular shop, and declined any payment for his time.”
In Business Since 2005
Accepts All Major Credit Cards
796 N Diamond Bar Blvd UNIT A13, Diamond Bar, CA
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J & L Car Care

J & L Car Care

(48)
Ignition & Electrical Systems, Air Conditioning & Heating, Transmission & Drive Train Services
“As a single woman I can get weary when dealing with car issues and such, but this crew has never wavered from providing me excellent service, with a smile and sometimes a donut and coffee.”
In Business Since 1992
Coupons & Offers
Family Business
ASE Certified
Serving Diamond Bar Area
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Reliable Smog Saint Anthony Complete Auto Care

Reliable Smog Saint Anthony Complete Auto Care

(46)
Transmission Repair, AC & Heating Service
“Helpful and very friendly workers and from the name of the business it speaks clearly their the best The word trust keeping me stay with this shop and proud recommending to my friends and family.”
In Business Since 2006
Coupons & Offers
STAR, STAR Certified
Accepts All Major Credit Cards
8786 8th St, Rancho Cucamonga, CA
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Foothill Quicky Smog

Foothill Quicky Smog

(44)
Out of State Smog Test, Smog Check, Change of Ownership Smog Check
“My 2015 Malibu needed it's 1st test but I had a check engine light, so he didn't waste my time or try to smog it, explained what I had to do, then after I fixed the problem and went back, it failed again because the code had not cycled out, so he gav...”
In Business Since 2011
Transparent Fees & Pricing
Coupons & Offers
STAR, STAR Certified
2016 W Foothill Blvd B, Upland, CA
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Master Smog & Test Only

Master Smog & Test Only

(47)
  • Truck
  • Price
  • Diesel
“Received paperwork pertaining to the Smog check that had a little more in-depth information on it than where I would go in the past, not sure if its a new thing the DMV is doing or if its just this place but it was awesome to have for my records.”
In Business Since 2006
Coupons & Offers
Licensed
Accepts Cash, Check, All Major Credit Cards
2507 W Orangethorpe Ave #110, Fullerton, CA
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Precision Import Auto Repair

Precision Import Auto Repair

(48)
“It's rare to find a mechanic shop where you feel genuinely cared for, but Precision Import Auto Repair excels in both quality service and customer care.”
In Business Since 1964
Se Habla Español
Coupons & Offers
Family Business
1545 Yorba St, Corona, CA
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Rancho Transmissions and Automotive

Rancho Transmissions and Automotive

(48)
Computer Diagnostic, Transmission Reseal, Transmission Rebuild
“My transmission slipped out of gear The owner is really honest and a good person He could have easily charged me 1000-2400 to fix my car It just needed a replacement part in order to keep it in gear He only charged me 180 dollars and had it d...”
In Business Since 1998
Remote Consultations Available
Offers Financing Options
Licensed, BBB Rating: A+
9377 E 9th St A, Rancho Cucamonga, CA
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Smog N Save

Smog N Save

(45)
Skip to Primary Navigation, Skip to Main Content, Skip to Footer
“Nobody likes him to take the car in to get smog it's almost as bad as waiting in line at the DOL but when you find somebody that makes the experience pleasurable who knows what he's doing and cares about his customers this is where you go you come to...”
In Business Since 2026
Coupons & Offers
STAR Certified
Accepts All Major Credit Cards
779 N Benson Ave f, Upland, CA
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Harvey's Autotech

Harvey's Autotech

(50)
All Automotive Service and Repair, - Late Owl Pick-Up Available, Family Owned and Operated
“Were honest and even though nothing ended up needing to be done to my vehicle (hence the honesty) they gave me a ride to and from my home to their shop to drop off and pick up my vehicle and gave me the peace of mind I needed.”
In Business Since 1996
Offers Financing Options
Family Business
NAPA Certified
Serving Diamond Bar Area
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Pomona Gear

Pomona Gear

(50)
  • Pinion
  • Truck
  • Job
“If you don't know how to properly build differentials with the patience and proper tools, I highly recommend that you don't touch it AT ALL and bring it to a specialists that knows what they're looking at like Pomona Gears.”
In Business Since 2009
Free Initial Consultation
Family Business
Licensed, BBB Rating: A+
1596 W Mission Blvd, Pomona, CA
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Green Smog Check

Green Smog Check

(49)
We Inspect and do Smog Check on All Cars, Please Schedule an Appointment, And Motor Homes
“It's a little tough to find the complex, you have to drive through the back of the car wash or on the other side is a car dealership I drover through their service center driveway to get to the building.”
In Business Since 2017
Coupons & Offers
Accepts Cash, All Major Credit Cards
Transparent Fees & Pricing
Serving Diamond Bar Area
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VMS Auto Body Collision Center

VMS Auto Body Collision Center

(49)
  • Text
  • Team
  • Calls
“I've worked with this shop for 3 or 4 times and the consistency of their work has always remained at high quality standards with great attention to detail.”
In Business Since 1991
Family Business
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
Serving Diamond Bar Area
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Karta Motorwerks

Karta Motorwerks

(48)
  • Dealership
  • Prices
  • Communication
“I definitely recommend this place to do your car repairs or service there I experienced their professional service and also give 5 stars customer service.”
In Business Since 2019
Coupons & Offers
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
725 S Beach Blvd, Anaheim, CA
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小李修車廠 KB Motor

小李修車廠 KB Motor

(46)
  • Fault
  • Tire
  • Efficient
“My car dropped to KB Motor for repair the left back side cover shell, they kept the car there for over a month and kept telling us the car will be fixed in the following week, but every week when we called, they kept pushing the dates to the next wee...”
In Business Since 1990
Family Business
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
19272 E Walnut Dr N, Rowland Heights, CA
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Rancho Smog Center

Rancho Smog Center

(49)
Regular Smog Test & Repairs, Dmv Services Including Change of Ownership, Star Approved Station
“It's professional technical experience support for any problems and nicely done Services Transmission, License plate replacement, Air & cabin filter replacement, Exhaust, Tires, Steering & suspension repair, General repairs & maintenance, Electrical,...”
In Business Since 2007
STAR Certified
Accepts All Major Credit Cards
9311 Jersey Blvd ste b, Rancho Cucamonga, CA
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Al & Lee's Auto Care Center

Al & Lee's Auto Care Center

(48)
Home, Warranty on Service, No Appointment Necessary
“I love bringing my car here and I've been going since my dad has recommended it and he's been going since I was young, the prices are very reasonable especially with all the work that they have to do and they are very knowledgeable about what the pro...”
In Business Since 1990
Family Business
ASE-, ASE-, ASE- Certified
Accepts All Major Credit Cards
1830 W 11th St Units A-B-C, Upland, CA
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R & N Complete Auto Repair

R & N Complete Auto Repair

(50)
Our Services Include: Transmissions, Filter and Fluid Changes and More, Wheel Alignment and Tire Rotation
“Thanks guys Services Air & cabin filter replacement, Auto battery replacement, Steering & suspension repair, Auto exhaust system repair, Auto water leak repair, General repairs & maintenance, Steering & suspension replacement, Auto engine diagnostic,...”
In Business Since 2010
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
Serving Diamond Bar Area
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North El Monte Automotive

North El Monte Automotive

(41)
Auto Repair, Car Maintenance, Smog Check
“Even it's 25 miles away from west LA, I still come here whenever needed to.”
In Business Since 2008
Free Initial Consultation
Family Business
Licensed, BBB Rating: A+
4402 Peck Rd, El Monte, CA
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Connie & Dick's Auto Service Center Inc.

Connie & Dick's Auto Service Center Inc.

(49)
  • Truck
  • Prices
  • Fair
“Services A/C system maintenance, Air & cabin filter replacement, Steering & suspension replacement, Auto A/C recharge, Electrical, Auto engine diagnostic, Tire rotations, Wheel alignment, Heating system maintenance, Auto emissions testing, Air condit...”
In Business Since 1966
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
Serving Diamond Bar Area
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Low Price Smog Check

Low Price Smog Check

(44)
  • Money
  • Reviews
  • Prices
“Other comments that I see are unsubstantiated comments, I say this because I have been in that place for 14 years and there are scenarios that never happened, I want to think that it is the competition”
In Business Since 2002
Transparent Fees & Pricing
Coupons & Offers
Licensed, BBB Rating: A+
2480 S Archibald Ave, Ontario, CA
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Quality Car Care

Quality Car Care

(49)
30k, 60k, 90k Mile Services
“We trust them for allbour car needs: Jaguar, Hondas and Buick Services Transmission, Electrical repair, Exhaust, Steering & suspension repair, General repairs & maintenance, Electrical, Auto engine diagnostic, Engine repair, General repairs, Brakes, ...”
In Business Since 2013
Family Business
Accepts All Major Credit Cards
Coupons & Offers
11434 Whittier Blvd, Whittier, CA
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Corona Express Smog

Corona Express Smog

(47)
  • Website
  • Price
  • Morning
“I had a problem with one of my vehicles, not only did they show us how to resolve the problem, they helped us with the first steps which are tedious, what would've been a $1200 repair ended up costing us 2 days of our time and $8.”
In Business Since 2006
Coupons & Offers
Licensed, BBB Rating: A
Accepts All Major Credit Cards
625 W 6th St, Corona, CA
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B & D Automotive

B & D Automotive

(49)
“I always leave with the feeling that I received great service with a great price.”
In Business Since 2006
Licensed, BBB Rating: A
Accepts All Major Credit Cards
1210 E 6th St, Corona, CA
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