Where to Find Us

We are conveniently located freeway-close in Upland, California. Our address is 1251 W. Ninth Street, Upland CA 91786. Office hours are 8 a.m. to 6 p.m. Pacific Standard Time. 

Directions:

• From the 10 freeway, exit at Mountain Avenue 
• Head north for .6 miles 
• Turn left onto Ninth Street 
• Turn right into the first driveway 
• Drive past the second building on your left, and turn left

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(909) 985-3249

Toll Free 1 (866) 985-3249

On-Site Solutions, Inc.

1251 W. Ninth Street, Upland, CA 91786