Trade Doors

Capital Windows have over 40 years experience manufacturing and installing an exceptional range of windows, doors and associated products. Whatever the project, we have the right approach and materials for the perfect finish.

Doors For Trade Supply

Capital Windows Trade offer fabricated, supply only doors to suit a wide variety of residential or commercial projects. Whether you require entrance doors, french doors or the very latest in sliding or bifolding doors, we have a wide choice of products and systems to enable you to choose the right product and in turn, offer your own customers a choice.

Aluminium Doors From An Expert Aluminium Trade Supplier

Our Range of doors all offer the very latest in design, security, form and function.  We manufacture our products in our state of the art factory where we have invested substantially in the latest cutting, machining and assembly processes.

Quality remains at the heart of what we manufacture, providing our Trade Customers with high quality products, backed by excellent service and technical support. Our aluminium doors are latest generation aluminium benefitting from great thermal performance, high security and adaptable to suit any kind of residential or commercial project.

We Specialise In The Following Areas:

Residential Entrance Doors

Residential Doors

Whether you require aluminium entrance doors, side doors or french doors, we offer a choice of products from the leading systems AluK, SAPA Crown and SAPA Dualframe.

Trade Aluminum Sliding Patio Doors

Patio Doors

Our patio doors are available from Reynaers, AluK and SAPA.  These offer flexible configuration, a choice of single, double or triple tracks and high quality hardware.

Bifold Doors Demo Closing

Bifolding Doors

We offer to the trade fabricated bifolding doors from AluK.  These products benefit from great design, reliable long term operation and pleasing aesthetics.

Residential Bifolding Doors

Commercial Doors

Aluminium commercial doors for retail, education, healthcare and other non-domestic applications. Proven high quality construction/long service life in high traffic environments.

Meeting or Exceeding The Latest Standards

Our doors all come meeting or exceeding the latest standards for security such as Secured by Design, and latest PAS 23 and PAS 24 standards where applicable. A choice of frame profiles, thresholds and hardware is available across our product range.

The Advantages Of Powder Coated Aluminium

The powder coating process applied to all our powder coated aluminium doors comes from the most established coating companies in the UK all meeting the required Qualicoat and British/European Standards.

Capital Windows Trade offer a huge range of colour options and textures to our trade customers with competitive lead times. There is a range of stock colours available including:

  • RAL 9011 Graphite Black
  • RAL 7016 Anthracite
  • RAL 9910 Hipca White Gloss
  • RAL 9016 Satin
  • RAL 7035 Satin Grey
  • RAL 1013 Satin Cream
  • RAL 1015 Matt Cream

Any RAL colour can be supplied including dual colours. For the full range of Capital Windows standard colours please contact us.

RAL bs NCS Design
Trade PVCu Stable Doors

Composite and PVCu Doors

Also available are a wide range of traditional and contemporary composite entrance doors with either solid timber core or GRP insulation.  These are complemented by a choice of glass and hardware options.

Our PVCu panelled doors are also of high quality and design with a choice of colours, grains and panel designs.

Capital Windows are one of only a few trade suppliers to offer you such a wide range of door products. Contact us for prices and further information.


“We have had the pleasure of dealing with Capital Windows for nearly 30 years. We find the quality of products and service provided first class. They are always keen to keep up with the current market trends and always looking at new products to offer trade customers.”

Novaglass Installations Ltd

“We always use Capital windows to supply all of our windows etc. All the products are of extremely high quality with the bonus of very friendly staff. We look forward to using your products in the future.”

Richards Building Services (RBS) Ltd

“We have been ordering and fitting aluminium Bi-folding sliding doors made to measure specifically manufactured by Capital Windows for a number of years. They have always not just met our expectations but exceeded them on every occasion.”

Skyfix & Co Ltd

Established in 1979, Capital Windows Ltd provide the biggest choice of home improvement products from the leading names and systems companies.