About Advance Smog
Family-owned and operated smog check center serving Sonoma County for over a decade
Nearly 13 Years of Excellence
Since 2012, Advance Smog has been Rohnert Park's trusted source for professional smog testing and emissions services. As a family-owned and operated business, we understand the importance of honest, reliable service at fair prices.
Our team of ASE-certified technicians is dedicated to providing accurate testing results and helping you understand California's emissions requirements. Whether you need a routine smog check, failed emissions repair, or diagnostic services, we're here to help.
As a STAR-certified test-only facility, we maintain the highest standards of integrity and professionalism. We don't perform repairs, which means our only goal is to provide you with honest, unbiased test results.
Licensed & Certified
Officially recognized by state and industry organizations
ASE Certified
Automotive Service Excellence certification ensures top-quality service by certified professionals
STAR Certified
Official California Bureau of Automotive Repair (BAR) STAR program smog check station
Smog Check STAR
Licensed test-only facility specializing in California emissions standards and testing
What Sets Us Apart
Committed to excellence in every aspect of our service
Honesty & Integrity
As a test-only facility, we provide unbiased, honest results with no conflicts of interest
Speed & Efficiency
Fast, same-day service with most smog checks completed in 20-30 minutes
Customer Satisfaction
Friendly, professional service with clear explanations and transparent pricing
Accuracy & Expertise
ASE-certified technicians using state-of-the-art computerized testing equipment
The Advance Smog Difference
Test-Only Facility
No repair services means completely unbiased results
Family Owned
Personal service from people who care about your satisfaction
13+ Years Experience
Over a decade serving the Sonoma County community
Quick Service
Most tests completed in under 30 minutes
Walk-Ins Welcome
No appointment necessary - come in anytime
Fair Pricing
Transparent, competitive rates with no hidden fees
Visit Us Today
Experience the Advance Smog difference for yourself