Secondary Glazing On-Line Design and Pricing

Terms and Conditions - Please Read Before Ordering

  • All items are priced individually.
  • Please see our Delivery page for maps.
  • Payment terms are C.O.D.
  • Most credit cards are accepted.
  • First orders and any order values in excess of £5000 will require a deposit and the balance payable on delivery.
  • Estimates stand for 8 weeks only.
  • Estimates are not an offer to supply goods but merely an estimate of costs which Duration Windows reserve the right to vary, substitute or withdraw without prior notification.
Get A Price
Visit Our Showroom
   Download A Brochure
View Our Products

Trade Supplier of ALUK products Smarts Systems approved fabricator. We are the largest supplier of Smart products in the UK. BFRC British Fenestration Rating Council - under the Window Energy Rating Group Scheme We are CE Marking complient

©2026 Duration Windows. We reserve the right to change specifications.
We continuously wish to improve and we kindly inform you that all incoming and outgoing phone calls may be recorded for quality and training purposes.