Mobile Clean Air Check Testing in Clovis, CA — We Come to Your Fleet Location

Commercial fleets, trucking companies, and heavy-duty vehicle operators in Clovis, CA depend on staying current with California's CARB Clean Truck Check emissions testing requirements. ST Pros makes that easier. We provide mobile Clean Air Check testing for eligible commercial fleets, semi-trucks, and RVs in Clovis and throughout California's Central Valley — coming directly to your fleet location so you can complete required testing without pulling trucks off route to reach a testing facility.


ST Pros is based in Clovis, CA, right in the heart of the Central Valley. We serve Clovis as one of our primary markets, with the experience, equipment, and scheduling flexibility to support fleet operations of all sizes in this area.

Row of parked semi-trucks in red, white, and blue at a truck stop
Gray truck chassis with a mounted control panel and polished cylindrical exhaust or fuel tank equipment
White semi-truck parked in an industrial lot beside stacked shipping containers

Fleet Clean Air Check Testing in Clovis

Fleet managers and trucking companies in Clovis choose ST Pros because we understand what commercial operations need: efficient testing with minimal disruption, multiple trucks handled in a single visit, and results submitted to the state system within 24 hours. We schedule around your operation — you tell us when and where, and our mobile testing team comes to you.


With over 20 years of Central Valley emissions testing experience, we've helped fleet managers and vehicle owners across this region maintain compliance efficiently and without unnecessary interruption to their operations.

Our Mobile Testing Services

Fleet Clean Air Checks

Semi-Truck Testing

On-Site Mobile Testing

24-Hour Inspection Turnaround

CARB Compliance Testing

RV Emissions Testing

Multi-Vehicle Fleet Visits

Convenient Scheduling

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Blue semi-truck with white trailer parked at a warehouse loading dock

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Semi-Truck & RV Testing in Clovis

In addition to serving commercial fleets, ST Pros provides mobile Clean Air Check testing for individual semi-trucks and eligible RVs in Clovis. Owner-operators and RV owners throughout the area can take advantage of our convenient mobile service — we come to your location, whether that's a yard, a truck stop, your business address, or your home.

Why Clovis Fleet Operators Choose ST Pros

20+ Years Experience

Two decades of mobile emissions testing experience serving California's Central Valley. We know CARB requirements and we know commercial vehicles.

Mobile — We Come to You

Our testing team comes directly to your fleet location. No facility visits, no towing, no wasted driver time getting to a test station.

Multiple Trucks in One Visit

Test your entire on-site fleet during a single scheduled visit. Efficient, streamlined, and designed for commercial operations.

Licensed & Insured

ST Pros is fully licensed and insured. Every Clean Air Check is completed by a qualified mobile testing professional.

24-Hour Turnaround

Inspections are completed and results submitted efficiently — with a 24-hour turnaround so your compliance records stay current.

Fleet Pricing Available

Special pricing when multiple vehicles are tested in a single visit. Military discounts also available for eligible customers.

Call Anytime

559-824-4291. We're available for calls and texts to answer questions, schedule appointments, and support your fleet's compliance needs.

Silver semi-truck hauling a white trailer on a highway under a blue sky
Turbocharged engine with polished metal piping mounted in a vehicle bay

How to Schedule in Clovis

Scheduling your mobile Clean Air Check in Clovis is simple. Call or text ST Pros at 559-824-4291, let us know your location, how many vehicles you need tested, and your preferred date. We'll confirm availability and schedule our mobile team to come directly to you.


As our home base, ST Pros serves Clovis and immediately surrounding communities with the fastest response times in our service area.

Clovis, CA FAQs

  • Do you provide mobile Clean Air Check testing in Clovis, CA?

    Yes. ST Pros provides mobile Clean Air Check testing in Clovis and throughout California's Central Valley. We come directly to your fleet location, business address, or other convenient location so you can complete required emissions testing on-site. Call or text 559-824-4291 to schedule your Clovis appointment.

  • Can you test our entire fleet at our Clovis location?

    Yes. ST Pros can test multiple commercial vehicles during a single scheduled visit to your Clovis location. Fleet pricing is available when multiple trucks are tested in the same visit. Call us at 559-824-4291 to discuss your fleet's testing needs and schedule a convenient appointment.

  • How quickly can you come to our location in Clovis?

    We work to accommodate fleet scheduling as quickly as possible. Call or text 559-824-4291 and we'll find the earliest available appointment that works for your operation. Scheduling options vary based on current availability — contact us directly for the most accurate timeline for your Clovis location.

Schedule Your Clovis Clean Air Check — Call or Text 559-824-4291 | Fleet Quotes Available