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Duration Windows


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  • Beaufort Aluminium Doors
  • Beaufort Premium Windows
  • Blue Composite Door
  • Commercial Door Installments
  • Commercial Sliding Door Installments
  • Heritage Windows
  • Luxury Aluminium Doors
  • Penthouse Patio Doors
  • Secondary Glazing
  • Sliding Patio Doors
  • Vertical Sliding Sash Window
  • White 4 Pane Bi-Folding Doors
  • White Composite Door
  • Wooden Bi-Folding Doors
  • Modern Window Handles
  • Monkey Tail Window Handles

Duration Windows Company Profile

Duration Windows was established in 1985 and specialises in the design, manufacture and supply of superior quality domestic aluminium doors and windows. The company is a family operated business and has forged a highly respected reputation as one of the largest suppliers in the UK. Duration Windows specialises in the manufacture of secondary glazing, bi-folding doors, aluminium windows and steel replacement windows which are supplied to trade and private clients nationally.

Services and Support

Duration Windows appreciates that technical, sales and marketing support are vital components of any business and that all products need to be backed up by exceptional services and support. A full range of product brochures, user manuals and user guides can be found on the website. There is also comprehensive sales and marketing support ranging from expert technical advice to marketing campaigns and the provision of leads to help a business grow. The company prides itself on extremely short lead times and offers a Fast Track ordering service. Standard deliveries are made by Duration Windows’ own fleet of delivery vehicles and drivers up as far as Birmingham and into Wales. Deliveries further afield are available upon request.

Aluminium Windows

Aluminium is a popular choice for window manufacture as it is highly resistant to rust and corrosion and offers slim sightlines and a wider glass area. The premium range of aluminium windows are maintenance free and are made to last for many decades. Aluminium is a sustainable, endlessly recyclable and environmentally friendly material which can be finished in over 200 RAL colour options. The windows can be coloured differently inside and out and all aluminium products are painted in a polyester powder coat finish which is baked on to provide a durable and tough finish which will not flake or fade. The window range includes:

  • Casement Windows: A collection including Smarts 47 slimline aluminium windows, A-rated aluminium windows, Blyweert Beaufort premium aluminium windows and steel replacement windows
  • Horizontal Sliding Windows: Smarts horizontal sliding windows, Continental folding windows up to 6m wide with a 90% clearance and Prime horizontal sliding windows for economical thermal insulation and slim sightlines
  • Vertical Sliding Windows: Duraview Plus sash windows, Prime vertical sliding non-thermal windows
  • Tilt and Turn Windows: Smarts tilt and turn windows with a 51mm polyamide thermal broken profile which is finished with a square or rounded bead
  • Curved and Arched Windows: Beautifully designed and crafted aluminium curved suntrap windows featuring polyamide thermally broken aluminium bar lengths of up to 7m in length
  • Heritage Windows: Grade II approved aluminium heritage windows and doors which are ideal for replacing existing steel windows and doors. The systems are designed to replicate the look of traditional steel, but provide exceptional security and thermal performance levels. The windows and doors are suitable for installation on new-build, replacement and refurbishment projects, domestic, commercial, listed buildings and heritage and conservation projects

Aluminium Doors

Aluminium doors are extremely strong and durable and resistant to corrosion, flaking and fading. There is a wide selection of door options to choose from, in over 200 RAL colours including front doors, back doors, Bi-fold doors, sliding patio doors, French doors, room dividers, commercial doors and arched doors and all are thermally broken and incorporate features such as stunning glass designs, high security and exceptional quality. Door options include:

  • Luxury Aluminium Front Doors: A luxury collection of aluminium front doors which are thermally efficient, high security, slim and match the Smarts window ranges. There is a wide variety of glass, hardware, colours and designs available for a stylish and contemporary look
  • Beaufort Premium Entrance Doors: A premium aluminium door system which incorporates slim-lines, high security and thermal efficiency and is extremely easy to install and glaze on-site
  • Smarts Residential Aluminium Doors: A thermally broken, secure and extremely thin door system which is available as a front, back or French door. A comprehensive selection of door hardware, glass and colour options is available in designs which will complement any property
  • Bi-Folding Doors: Bi-folding doors enable a room to be opened up, bringing the outdoors in to create a functional and aesthetically pleasing alternative to sliding patio doors. The bi-fold doors provide a 90% clear opening with flush floor levels from inside to outside and are available in Durafold 1000, Continental and Smart Mullion ranges
  • Sliding Patio Doors: The aluminium patio doors are extremely slim and can achieve larger maximum sizes, allowing more light into a room. The doors are available in over 200 RAL colours and the ranges include Smarts patio doors, Penthouse patio doors and Duration room dividers in various sizes
  • Commercial Shop Fronts: A collection of commercial shop fronts manufactured from aluminium and manufactured to exact specification in single or double glazed options

Other Products

Duration Windows offers an enormous array of products encompassing both domestic and commercial applications and additional products include:

  • Secondary Glazing: Options include horizontal or vertical sliding, hinged, lift-out, fixed and combination units. Fly screens are also available
  • Aluminium Roofs: ABD bespoke commercial aluminium roofs, conservatory roofs, orangeries and roof lanterns all handled by Duration Windows sister company Aluminium By Design
  • Commercial Aluminium: A wide range of commercial products including shop fronts, screening, entrances and low rise curtain walling
  • Associated Accessories: Additional products including composite GRP doors, Chelton handles, glass and glazing options, electrically heated glass, integrated blinds and fly screens

Duration Windows is committed to providing superior levels of customer care for experienced fitters through to private individuals. The experienced and knowledgeable customer and technical support team can offer advice and information across the whole product range. The company also has the capability to find a reputable installation specialist where necessary. The majority of customers are trade companies, but Duration is happy to supply the ever-growing self-build and DIY markets. Duration Windows aims to deliver orders in standard colours in 2-3 weeks and all products are guaranteed for ten years.


Unit 4 Thames Developments
Charfleets Industrial Estate
Canvey Island

Tel: 01268 681612

What We Do