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.

Capital Windows Are Your Trade Partner Of Choice

Capital Windows offer our trade partners complete window solutions for virtually any kind of residential or commercial project. Manufactured in our modern factory by skilled and experienced fabricators we guarantee you a range of products that are expertly made, competitively priced and will help you offer your customers the right product for the installation as well as helping you grow your market.

As one of the longest serving specialist trade manufacturers, Capital Windows are your one stop shop if you are looking to partner with an expert and trade focused window and door supplier.  Benefiting from offering you a choice of leading aluminium systems, Capital Windows are your trade partner of choice.

Evoke Flush

Evoke Flush

The aluminium system with the slimmest sightlines on the market. Secure, low maintenance and sustainable.

Trade AlUK Entrance Doors


Aluminium window sections offering excellent design and is one of the slimmest aluminium windows available.

Monaframe Aluminium Windows & Doors

SAPA Crown Casement

A quality and established window system suitable for replacement or new build applications.

Contemporary Aluminium

SAPA Si Windows

Meeting stringent building regulations and offering exceptional levels of security and weather performance.

Contemporary Design

SAPA Window Wall

A low rise facade glazing system to crate large windows and glazed screens and integrates with other windows and doors.

We cater for all kinds of trade supply work, from a single window to a complete dwelling or commercial building. We offer you what we consider to be the largest range of aluminium products including:

  • Windows in a choice of styles and opening options
  • Aluminium Entrance Doors whether for residential or commercial use
  • Secondary Glazing
  • Bifolding Doors and Sliding Patio doors
  • Commercial Doors, shopfronts and screens
  • and much more
Residential Aluminium Windows

Aluminium Windows

Discover our range of contemporary and traditional aluminium windows from the leading systems companies to transform and add value to any property.

Residential PVCu Window Solutions

PVCu Windows Solutions

Explore a range of high quality PVCu windows giving you the best in security, thermal performance and design. Competitively priced and of superior quality to suit any kind of traditional or modern home.

Contact our Trade Department where one of our specialists is available to discuss your trade window requirements.

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