Duration Windows

Aluminium window and door manufacturing from Canvey Island

Duration Windows is a trade manufacturer of aluminium windows and doors that has been operating since 1985. The company states that it combines more than 40 years of expertise with modern manufacturing and supplies high-performance aluminium products nationwide from its facility in Canvey Island, Essex. Its proposition is aimed at the trade: it presents itself as a supplier from which buyers can purchase directly, with trade-friendly pricing and quick quoting cited for several product lines.

Product ranges

The catalogue is organised into distinct families of systems, each oriented to a particular architectural or performance requirement.

• Heritage Windows & Doors: designed to replicate traditional steel-look windows and doors using modern technology.
• Modern Windows & Doors: characterised by slim sightlines and high-security locking.
• Vertical Sliding Windows: described as easy and reliable, with natural ventilation as a stated benefit; the VS Plus variant is also listed.
• Bifold Doors: made-to-measure aluminium bifolds with slim sightlines, presented with trade-friendly pricing and quick quoting.
• Aluminium Sliders: wide-panel sliding systems, also made to measure.
• Aluminium Roofs: roof systems in the same made-to-measure, trade-oriented format.
• Secondary Glazing: a retrofit solution that the company says can save around 10% on heating bills.
• Internal Screens: acoustic-barrier screens intended to create light and airy internal environments.
• Commercial Range: a low-rise curtain walling system described as structurally self-supporting.
• Shaped Windows: curved and shaped units manufactured in house, including curve-on-plan designs.

Trade services and support

Beyond manufacturing, Duration Windows lists a set of services intended for trade customers. These include obtaining a price, special offers, bifold installation, delivery, a fast-track option, help finding a fitter through a large database of experienced fitters, marketing support and product design tools. Sales brochures, technical manuals and order forms are available as downloads, and the company also accepts files sent by customers.

Showroom in Essex

The company operates a product showroom in Essex, where visits can be booked by appointment. According to the site, booking an appointment at the showroom includes a 5% discount voucher.

Recognition and company background

The news section lists several distinctions: a Platinum Business Award in July 2025, recognition for sustainability in June 2025, a BUILD Award for Best Aluminium Windows & Doors in March 2025 and an Award of Excellence in January 2025 marking 40 years of UK manufacture and trade support. The site also displays customer comments attributed to Trustpilot, including praise for named staff in sales, after-sales and reception, and one customer referring to more than 20 years of working with the company.

Duration Windows is the trading name of Quailfalcon Limited, registered in England and Wales under company number 1913793, with VAT registration GB545958986. The registered office is at Thames Development, Charfleets Road, Canvey Island, Essex SS8 0PQ. The company director is G. Chelton. The company notes that calls may be recorded for quality and training purposes and reserves the right to change specifications.