Window sills from Passive Sills are very easy to install. They can be installed both as traditional window sills or retrofitted to existing sills.

If you require more information then Contact Us.

Passive Sill Installation

Over Sill Installation

This 8 Step installation guide will take you through the process of installing our Over Sill product. Our window sills can also be installed as a standard stone window sill. Click the link for a PRINTABLE VERSION of the Over Sill installation guide.