There are a lot of window and door suppliers on the market and choosing the right one can be difficult. Duration Windows have been manufacturing window and door products since 1985 and deal with thousands of customers each year. We manufacture a wide variety of products to bring you great choice and value. Our large product range means that we can usually offer several products that are suitable for your requirements and using our many years of experience can recommend the product that is ideal for you.

Bi-Fold Doors

• Slimline
• Polyamide thermal break
• Security locking on main door and intermediate stiles
• High performance weathering
• Finger safe gaskets
• Internally beaded
• The structural strength and durability of aluminium.
• No expansion and contraction problems - unlike some PVCu folding doors.
• Virtually maintenance free
• All doors are made to measure - we do not have standard sizes
• All but the largest doors are supplied made up with glass separate - these are not kits

Panoramic Patio Door

• Maximum glass and minimum frame
• Panels may be up to 2.5 metres EACH, therefore a 5 metre opening can be achieved with just 2 panels
• All panels can slide - no fixed panels
• 5 point high security locking
• Polyamide thermal break
• 200 Kg maximum sash weight
• White is our most popular colour, Silver Anodised, Brown, Black plus single RAL and dual RAL colours are available.

Secondary Glazing

Standard Features

• White Finish
• 4mm Float Glass
• MDF Face Fix Frame
• TM1 Trims/Beads

Optional Features

• Silver, Brown or 200 RAL Colours available at extra cost
• Obscure, Toughened, Laminated or Acoustic glass
• Extended subframe (deeper front to back) for Reveal fixing, or No subframe for Economy
• Wider trims

Lots of other products available on our website.