We are OPEN by appointment only. For important COVID-19 information please click here

Genuine GM Accessories in Thornhill, ON




Carry a load on the roof of your car with roof cross rails from the Roy Foss Thornhill accessories department in Thornhill, ON. Our wide selection includes a variety of interior, exterior, and electronic accessories for your car. From styling accents to functional enhancements, our Thornhill Buick, Chevrolet, GMC, Cadillac accessories department offers everything to customize your car. We have the most extensive selection to help you personalize your ride. At Roy Foss Thornhill, we help you make your car look more attractive and stylish. Choose from our wide range of Buick, Chevrolet, GMC, Cadillac Accessories today!


Chevrolet, Buick, GMC And Cadillac Accessories In Toronto


Get ready to take a look at our Chevrolet, Buick, GMC and Cadillac accessories store from Roy Foss Thornhill in the Greater Toronto Area. To schedule an appointment, call us at 905-886-2000. GTA drivers, our Chevrolet, Buick, GMC and Cadillac accessories store will help your vehicle stand out from the crowd. Our GM customers are coming for years and we hope to see you soon. Drop by Roy Foss Thornhill to explore our large inventory of Chevrolet, Buick, GMC and Cadillac accessories today!

Saved Vehicles


You don't have any saved vehicles!

Look for this link on your favorites:


Once you've saved some vehicles, you can view them here at any time.

Contact Us

(888) 630-4944

Call Now

7200 Yonge Street • Thornhill, ON L4J 1V8

Get Directions

Today's Hours:

Open Today! Sales: 9am-5pm

Service: Closed

Parts: Closed

Roy Foss Thornhill 43.802789, -79.422113.