About us

37 Smog and Repair - Hesperia

37 Smog and Repair is proudly woman-owned and operated, led by Janna, a master mechanic and recognized subject matter expert in smog diagnostics and compliance. This isn’t a volume smog mill-it’s a precision shop built on knowledge, accountability, and earned trust.

With state-certified technicians, advanced diagnostic technology, and hands-on expertise at the helm, we go beyond simply passing inspections. From standard smog checks to targeted repairs and complex diagnostic issues, every vehicle is evaluated with clarity, accuracy, and transparency.

We service cars, trucks, SUVs, and motorhomes, blending modern equipment with old-school integrity. Here, quality isn’t an upsell or a slogan-it’s the baseline. When you want the job done right the first time, by someone who truly knows smog from the inside out, you’ve found your shop.