Best Emissions Testing & Smog Check in O'Fallon, MO

The highest-rated Emission Repair Service and Smog Check companies out of 126 vetted & reviewed in the O'Fallon area.

Boss Automotive

Boss Automotive

(9)
  • Fair
  • Price
“They fix my car for good price and my car runs great”
2456 Forst Dr, O'Fallon, MO
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Greg's Auto Service

Greg's Auto Service

(26)
  • Prices
  • Vehicles
“I called all over Troy the Friday before Memorial Day weekend and Greg's was the only shop that was able to fit me in for 2 vehicle state saftey inspections.”
Serving O'Fallon Area
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CNB Automotive Troy

CNB Automotive Troy

(5)
  • Fair
“CNB automotive was the only shop in Troy to get us in the same day, diagnosed the problem, ordered parts and did exactly what they said in the time frame promised!”
Serving O'Fallon Area
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Everything Automotive

Everything Automotive

(28)
  • Job
  • Vehicle
  • Work
“Instead of just throwing parts at it raking up the bill and hopping it would work they took the time to rule out all the simple items that could keep the plugs from firing.”
Accepts All Major Credit Cards
In Business Since 2020
3430 Morgan Ford Rd, St. Louis, MO
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The Shop

The Shop

(30)
  • Price
  • Work
  • Mechanic
“There is something to be said about a shop owner that actually helps with the workload as there are so many shop owners that stand behind the counter pretending to know what they're talking about when referring to a problem with your vehicle.”
Serving O'Fallon Area
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G K Auto Inc

G K Auto Inc

(28)
  • Mechanics
  • Vehicles
  • Price
“They do their work on time on budget very friendly knowledgeable and reasonable rates would highly recommend them Craig is a good guy we've been taking vehicles to him since we moved out to Elsa three or four years not had a problem whatsoever with t...”
Serving O'Fallon Area
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Lewis Family Garage

Lewis Family Garage

(28)
  • Vehicle
  • Professional
  • Prices
“Very kind professional services and great pricing”
Serving O'Fallon Area
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Russell's Auto Repair

Russell's Auto Repair

(29)
  • Mechanic
  • Job
  • Oil
“Couldn't ask for a better Auto Repair place, Russell's is Awesome, saved me hundreds of dollars, on a tune up, oil change, rotating tires, from other places, talk about Honesty, Friendly, I will always go back to Russell's Auto Repair, and suggest th...”
Serving O'Fallon Area
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Marshall's Auto Service

Marshall's Auto Service

(29)
  • Business
  • Mechanic
  • Vehicle
“They strive to get you back on the road.”
Accepts Cash
In Business Since 1982
Serving O'Fallon Area
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Gene & Sons Auto Services

Gene & Sons Auto Services

(18)
“Great shop awesome people work there”
Accepts All Major Credit Cards
In Business Since 1974
7049 W Florissant Ave, St. Louis, MO
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Custom Auto

Custom Auto

(19)
  • Price
“.it's like this,, they turned out being some of my oldest and dearest friends and I just think they're top of the top top of the crop all the way summation point and very proud to know you guys thanks for everything PS Plus cool Supper real”
Serving O'Fallon Area
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D & M Transmission LLC

D & M Transmission LLC

(15)
  • Boat
“Will not try and take you for granted.”
Serving O'Fallon Area
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S S Automotive & Driveline

S S Automotive & Driveline

(6)
  • Price
“They do great work for great price”
Serving O'Fallon Area
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Royal Auto Repair

Royal Auto Repair

(29)
  • Business
  • Professional
  • Money
“They were out of the item I brought up to the counter to purchase so they gave me the upgraded model for the same price as the item I selected without me even asking.”
Licensed, BBB Rating: A+
In Business Since 1985
Accepts All Major Credit Cards
501 N Spring Ave, St. Louis, MO
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Tim's Service Center

Tim's Service Center

(30)
  • Inspection
  • Family
  • Prices
“Great place, great and competent people.”
Serving O'Fallon Area
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Will's Automotive LLC

Will's Automotive LLC

(24)
“This shop was so friendly and helpful, I went in initially for an inspection and after talking with the mechanics (one who is the owner) they both seemed very certain my truck could be fixed with this issue I had been dealing with for months.”
Serving O'Fallon Area
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Corner Stop Automotive

Corner Stop Automotive

(21)
“Very friendly.”
Serving O'Fallon Area
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Home Oil Co

Home Oil Co

(10)
“Larry does great work!”
Serving O'Fallon Area
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Grateful Automotive LLC

Grateful Automotive LLC

(5)
  • Price
“Also, my bill is a bit high, but much more reasonable than other repair services tend to charge with inflations, and they're allowing me to pay in installments instead of all at once, which makes the process much easier on me.”
Serving O'Fallon Area
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Xperienced Tire & Auto

Xperienced Tire & Auto

(9)
  • Price
  • Mechanic
“Had tick coming from my motor and could not figure out where it was coming from so I took it to them and Thay told me that it was a exhaust manifold leak.”
Serving O'Fallon Area
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Prill's Garage

Prill's Garage

(4)
“Will help you anyway he can”
In Business Since 1985
Serving O'Fallon Area
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Mark II Tune-up

Mark II Tune-up

(29)
|auto Air Conditioning Repair
“Ron the owner is always very willing to share the details of what needs to be done with the car and tries very hard to work people into their schedule to get their car completed on time when they need it!”
Licensed, BBB Rating: A+
In Business Since 1980
Accepts All Major Credit Cards
Serving O'Fallon Area
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Jefferson County Auto Repair

Jefferson County Auto Repair

(30)
  • Vehicles
  • Business
  • Price
“If not for the shop willing to help guide me and let me borrow the tools when they had so many customers ahead of me, I would have been stuck there for who knows how long.”
50+ Years Experience
Serving O'Fallon Area
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Medley's Auto Repair LLC

Medley's Auto Repair LLC

(21)
  • Vehicle
  • Price
“Great costumer service”
Serving O'Fallon Area
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Why these companies made our list

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