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.

Diamond Bar Auto Service & Body

Diamond Bar Auto Service & Body

(8)
“With oil all over the place when I first took it to Choi he thought maybe needed to change all the gaskets turns out it was the plug.”
In Business Since 2006
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

(28)
Ignition & Electrical Systems, Air Conditioning & Heating, Transmission & Drive Train Services
“Appreciate extra time to replace windshield wipers at pick up time, too!”
In Business Since 1991
Coupons & Offers
Family Business
ASE Certified
Serving Diamond Bar Area
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Star Smog Check

Star Smog Check

(22)
  • Price
“Best place around, quick and easy.”
In Business Since 2022
Free Initial Consultation
STAR Certified
Coupons & Offers
13441 Imperial Hwy., Whittier, CA
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Rancho Smog Center

Rancho Smog Center

(28)
Regular Smog Test & Repairs, Dmv Services Including Change of Ownership, Star Approved Station
“As a bonus, he and another gentleman were able to identify a noise I had been hearing for 5 years but no one else addressed-and they were able to fix it with an easy solution.”
In Business Since 2008
STAR Certified
Accepts All Major Credit Cards
9311 Jersey Blvd ste b, Rancho Cucamonga, CA
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E Z Smog

E Z Smog

(29)
  • Coupon
  • Lady
  • Price
“Got my RV smogged in a timely manner.”
In Business Since 2005
Coupons & Offers
Licensed, BBB Rating: A
Accepts All Major Credit Cards
14935 La Palma Dr, Chino, CA
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Z Smog Check

Z Smog Check

(30)
Smog Check, Emission Testing, Smog Check Coupon
“He was extremely friendly when we arrived there he attended us very fast, everything was very good that I made up my mind even if my car did not pass the smog check I was still going to give them five stars.”
In Business Since 1999
Licensed, BBB Rating: A
Accepts All Major Credit Cards
1290 W 9th St, Upland, CA
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Smog Tech Star Station

Smog Tech Star Station

(28)
Anaheim Hills, Smog Check, Emissions Testing
“I told him I was caring for my elderly Mom and needed to get a smog check on her car, but her battery wasn't starting due to her not driving much during the Pandemic.”
In Business Since 1986
Licensed, BBB Rating: A
Accepts All Major Credit Cards
17035 Imperial Hwy., Yorba Linda, CA
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Quick Check Smog Check

Quick Check Smog Check

(27)
  • Price
“Thanks guys I usually get my 3/4 truck smog here thanks for great service I appreciate you getting my wife's impala smog and ready for registration great customer service as usual”
In Business Since 2003
Coupons & Offers
Locally Owned & Operated
ASE, ASE Certified
10742 Central Ave, Ontario, CA
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Foothill Quicky Smog

Foothill Quicky Smog

(29)
Out of State Smog Test, Smog Check, Change of Ownership Smog Check
“I highly recommend this place”
In Business Since 2010
Transparent Fees & Pricing
STAR, STAR Certified
Accepts All Major Credit Cards
2016 W Foothill Blvd B, Upland, CA
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O.C. Automotive and Diagnostics

O.C. Automotive and Diagnostics

(29)
  • Oil
  • Professional
  • Mechanic
“My experience was amazing wit Anthony n Jacob great service went above n beyond for me wit my 2010 Camaro ss that has been at multiple shops n couldn't narrow down the issues till I came to OC automotive I will definitely come bck n recommend them to...”
In Business Since 2017
Coupons & Offers
731 W Whittier Blvd a, La Habra, CA
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A Topline Smog Star

A Topline Smog Star

(29)
  • Price
  • Professional
  • Truck
“This was my first time coming here and it was an excellent experience the customer service was outstanding they got me in and out very quickly and it was a great experience I will keep coming here and would recommend it to anyone”
In Business Since 2019
Family Business
400 W Foothill Blvd #B, Pomona, CA
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In & Out Smog Check (Test Only)

In & Out Smog Check (Test Only)

(26)
  • Price
  • Discount
“Super friendly, gave me great advice about the best way to go pay for my DMV registration, and even had suggestions for how to clean the cloudy headlights on my car, which I will be back for!”
In Business Since 2005
Family Business
ASE Certified
Accepts All Major Credit Cards
144 S Bradford Ave, Placentia, CA
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Advanced Auto Smog Star

Advanced Auto Smog Star

(30)
  • Price
  • Vehicle
  • Mechanic
“Was informed in words a non-mechanic could understand what was wrong, they were able to take my car in that day and the next day it was ready to pick up.”
In Business Since 2012
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
329 W Arrow Hwy, Glendora, CA
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Express Lube & Smog

Express Lube & Smog

(18)
  • Price
  • Vehicles
“Nice place I recommend”
In Business Since 2010
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
10717 Carmenita Rd, Whittier, CA
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White Automotive

White Automotive

(17)
“Extremely patient with my level of nerves (and lack of knowledge with regards to what i was doing), friendly staff and a general air of knowing what they're doing while still getting along as a group.”
In Business Since 1957
Licensed, BBB Rating: A
Accepts All Major Credit Cards
250 E Whittier Blvd, La Habra, CA
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Speed Auto Plus

Speed Auto Plus

(26)
  • Mechanic
  • Honest
  • Prices
“I Previously took my car to Toyota to have them do a maintenance they charged me $200 to tell me that I needed a new transmission for $7000 went to this shop rich took a look he said there's nothing wrong with my transmission but did recommend a thr...”
In Business Since 2009
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
725 N Benson Ave, Upland, CA
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Kevin Smog

Kevin Smog

(26)
  • Price
  • Professional
“Professional, friendly service and very good price.”
In Business Since 2000
Licensed, BBB Rating: A+
Accepts All Major Credit Cards
4519 Baldwin Ave, El Monte, CA
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Smog Only

Smog Only

(26)
  • Sunday
“Its always good to see this man year round for a smog.”
In Business Since 2012
Accepts All Major Credit Cards
522 N Gilbert St, Fullerton, CA
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Fullerton Stop N Smog

Fullerton Stop N Smog

(30)
  • Price
  • Website
  • Business
“I appreciate the service I received today getting a smog check.”
In Business Since 2014
Coupons & Offers
1133 E Commonwealth Ave, Fullerton, CA
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Smog Pros Test Only INC

Smog Pros Test Only INC

(29)
  • Professional
  • Area
  • Review
“Impressed by the ease in getting smog certified.”
In Business Since 2009
Coupons & Offers
18934 Colima Rd a, Rowland Heights, CA
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Yorba Linda Test Only Smog Chk

Yorba Linda Test Only Smog Chk

(28)
Star Station, Free Refreshments With Service, Fast, Professional, and Friendly
“He was very knowledgeable and go the smog done quickly.”
In Business Since 1989
Accepts All Major Credit Cards
17071 Imperial Hwy. # A9, Yorba Linda, CA
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First Class Smog

First Class Smog

(27)
  • Price
  • Mechanic
  • Vehicle
“Pointed out potential problems for free.”
In Business Since 2022
Free Initial Consultation
7870 Commonwealth Ave b, Buena Park, CA
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A-1 Lube & Tune

A-1 Lube & Tune

(26)
Oil Change
“I'd recommend calling in advance to confirm how busy they are, otherwise, you'll drop your vehicle early morning and only retrieve it by the end of the day.”
In Business Since 2013
ASE, ASE Certified
Accepts All Major Credit Cards
Serving Diamond Bar Area
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La Habra Smog

La Habra Smog

(26)
  • Professional
  • Reviews
  • Technician
“The guys there are great and friendly and work fast!”
In Business Since 2015
Accepts All Major Credit Cards
Family Business
100 E Whittier Blvd, La Habra, CA
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