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New or old, we do it all.  From scheduled maintenance to complete engine rebuilds on all makes and models, let us be your full service shop with mechanics you can trust.  Whether you are a customer with one vehicle or a business with a fleet of trucks, our goal is to make your service experience a pleasant one.


We appreciate the opportunity to earn your trust and business.

Hours of Operation:

MONDAY - FRIDAY: 8:00 AM - 5:00 PM


1370 Ross St

PO Box 2823

Wrightwood, CA 92397

Across from Jensens!

Our Services


* Oil Changes     * Tune Ups

* Brakes        * Shocks & Struts

* Scheduled Maintenance     * Tires

* Windshields and Auto Glass

* A/C Service and Repair

* Steering and Suspension

* Clutch Replacement   *Engine Overhaul

* Computer Diagnostics / Check Engine Light​


* And more! If it is on your car we will fix it!

About Us


Founded in 2002 by Clark Fleeup, the business started as a mobile service shop operated out of a customized RV.


In 2008 we purchased land and built a permanent service facility; now located on Highway 2 across from Jensen’s market, Service on Site Automotive is housed in a 2,800-square-foot service center with three bays designed to service both small and large vehicles.


With hard work and a commitment to honest service, our goal is to keep our customers satisfied. We look forward to the opportunity to earn your business and loyalty!




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