Bring your car to Vasquez Quick Smog in Saint Helena, California, for its biannual emission tests. We are a test only smog center providing information for air pollution control and recommendations for repairs. Our technicians are able to service all makes and models of all vehicles including RVs, commercial trucks, motor homes, and cars built before 1975. Unlike most other test centers, we offer testing for gross polluters, which are vehicles that have failed smog tests in the past. If your vehicle fails, we will help you choose a repair specialists and assist you with filling out the paperwork to receive a grant to fix this problem. Find us located behind Central Valley Building Supply Business just off of Highway 29. Se habla Espanol.