Welcome to Core Sash Windows and thank you for visiting our site!

We would like to take this opportunity to introduce ourselves and give you a brief overview of the services we offer.

We are an Islington based company specializing in timber framed box sash windows. We undertake all related work, from double-glazing installation and window replacement, to complete restoration and draught proofing of your existing sash windows.

We take great pride in our workmanship and all materials used are of the highest quality. Our service is efficient and reliable, our prices are extremely competitive and we guarantee all work on completion.

Please get in touch with any queries and we look forward to hearing from you!