Map

Get in touch

If you need to contact anyone at Keystone Granite the best method is by giving us a call.

Phone: (210) 651-1786

Alternatively you can use the contact form here and we’ll get back with you ASAP.


Contact Form

Where Keystone is located

Address: 18975 Marbach Lane Suite 291, San Antonio, TX 78266

Driving to Keystone Granite


Once you've turned onto Marbach Ln, you will take a left at your 3rd driveway, there is a sign out front with the address 18975 Marbach Ln.

Continue on this driveway until you pass through an automatic gate, you will know it is the correct drive by noticing the white fence on your right.

Once through the gate continue driving forward and you will see a tan building on your right with a green metal roof. This is Keystone Granite's showroom.

The entrance to the Keystone Granite building has two antique gas pumps and a green awning, the doors are open Monday-Friday from 9am to 5pm and on Saturdays from 9am to 1pm.