American On-Site Services Share: Construction and Development American On-Site Services Visit Website Request Info 3808 N Sullivan Rd. Building 107 Spokane Valley , Washington 99216 509-244-8404 About Map About American Onsite Service provides clean quality equipment for construction projects and special events. These services include portable restrooms, restroom trailers, temp. fencing, and barricade. What's Nearby? Distance: 5 10 15 20 25 50 mi.