Castle Windows is a member of FENSA. FENSA Limited is the Fenestration Self-Assessment Scheme for companies that install windows and doors in homes. Please feel free to click the link below to go to the FENSA site (remember to click back to return to this site).
We are also a part of the Federation Of Master Builders and European Building Confederation.
All uPVC extrusions are manufactured to the exacting standards of BS7413 and the suite holds KM12894, PAS011 and KM33502.