Top-Quality Services from the Experts

Trust the experts at Keith Colthart Carpentry in restoring and replacing your timber sash windows. We are the experts at bringing your old sash windows back to life.

No job is too small.

Looking for a child safe and security lock which is specifically designed for timber sash windows?

We have the unique Angel Ventlock system.

We can also supply and fit locks to any other type of window, aluminium or timber. We provide our services to Strata managed residences and to all residential homes. 

All our work is guaranteed and carried out with a fine eye for detail.

We offer the following replacement and repair services for sash windows to residential property owners in New South Wales:

Need your Heritage Windows restored or replaced?

We build and install heritage bespoke timber windows of all shapes and sizes including curved and detailed profiles. Most important to us is the timber detail inside and out to complete a perfect finish. We retain the distinctive charm of the window and offer a full range of heritage hardware. We also repair and install leadlight glass to suit. An added option is to install the Angel Ventlock to ensure your windows are safe and secure.