uPVC Sash Windows from Costello Windows look beautiful in any home old or new. Costello Windows brings together the beauty of the traditional and classic sliding sash windows with all the benefits of modern materials and energy efficient design. Costello Windows uPVC sash window is a solid window with some very useful functionality.
- U-Value 1.5 W/(m²K)
- Sashes move up & down, and inwards
- Independently certified with BS test simulator
- Argon gas filled units
- Warm edged spacer bars
- Double glazed
uPVC Sash Window Properties
If looking for the benefits of modern materials why not try a sliding sash window in uPVC. Costello Windows uses thermally efficient glass and materials to give excellent air tightness and high heat loss resistance. A multitude of security features make our products rock solid. If you like what you see please give us a call, our sales team are friendly and waiting for your call. We are one of Munster’s and Ireland’s largest window and door companies.
Email Costellos or call now on 068 34800.