Smog King

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About Smog King
Smog King operates as a licensed smog inspection station serving Roseville and surrounding communities including Citrus Heights, Rocklin, and Granite Bay. With a 4.6-star rating aggregated from 368 customer reviews, the shop has built a reputation for delivering accurate emissions tests without employing bait-and-switch pricing tactics. Their team performs both standard biennial inspections required by California DMV and handles vehicles with aftermarket modifications including carb-legal intake, exhaust, and catalytic converter upgrades.
What distinguishes Smog King from competing smog shops is their transparent three-step testing process: visual inspection, component functional testing, and tailpipe emissions analysis. Customers frequently praise the complimentary beverages including craft coffee, lattes, and loose leaf tea served at no charge while they wait in climate-controlled, spacious waiting areas with free Wi-Fi. Theshop also offers weekend availability, with Sunday hours from 9 AM to 4 PM, accommodating drivers who cannot visit during traditional weekday business hours.
customer accounts highlight specific positive scenarios: Raymond Whitehead described a seamless Sunday appointment completed in approximately 15 minutes with courteous staff, while Vincent Sodini praised the team's knowledgeability regarding his carb-legal modifications without unnecessary harassment over factory-original components. Devon Cervantes noted theclean, air-conditioned facility with smooth check-in processes, representing the consistent service experience reflected across the majority of five-star reviews.
What Customers Say
Four of five detailed reviews mention discount availability. Positive feedback cites quick turnaround (15-minute service), courteous staff, and clean facilities. The lone three-star critique references a digital coupon acceptance policy, reviewers successfully using $20 coupons include Michele Cooper and others praising the savings.
Working Hours
| SundayToday | 9 AM–4 PM |
| Monday | 8 AM–6 PM |
| Tuesday | 8 AM–6 PM |
| Wednesday | 8 AM–6 PM |
| Thursday | 8 AM–6 PM |
| Friday | 8 AM–6 PM |
| Saturday | 8 AM–6 PM |
Services
Biennial Smog Certification
California DMV-required emissions test for vehicle registration renewal, conducted every two years.
Pre-purchase Emissions Inspection
Verification of emission compliance before buying used vehicles, ensuring buyer confidence.
Modified Vehicle Inspection
Specialized testing for carb-legal aftermarket modifications including intake, exhaust, and upgraded catalytic converters.
Visual Inspection
First step examining emission control components, hoses, and hardware for integrity and proper installation.
Component Functional Testing
Electronic verification of onboard diagnostic systems and sensor responsiveness.
Tailpipe Emissions Analysis
Physical measurement of pollutant output against California Air Resources Board standards.