Had to mount in the mantel and drilling into the mantel can be a patient process. If you have a metal one like I did, be prepared with a few drill bits and a lot of patience. Make sure you use the heavy duty cobalt drill bits, go slow and put in a bit of force. The actual mounting of the shade itself is a piece of cake as explained in all the DIY videos on the iseekblinds.com.au website. Very pleased with the material, workmanship and quality of the blinds.