Capital Windows: Trust The Experts

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.

A Comprehensive Range Of Commercial Systems

Capital Window Manufacture and install a comprehensive range of commercial fenestration and architectural aluminium systems that can meet the requirements of virtually any construction project.

With 40 years of manufacturing and installation excellence, we offer our clients one of the best ranges of commercial aluminium windows, doors, curtain walling and glazing.  We are not tied to any one system, meaning we have the right product for your construction project and can offer you expert and impartial advice.

Extensive Choice

Products are available in a wide choice of colours and finishes.

Industry Experts

Celebrating over 40 years of in the fenustration industry.

Our Promise

The highest quality and best experience for every customer.

Fensa Registered

Energy efficient and compliant with the latest regulations.

Wide range of windows


Our specialist suite of commercial windows come in a wide range of opening options. Whether for residential or commercial construction products, we have the right window solutions.

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Aluk Sliding Door


We offer substantial choice in commercial doors, from light commercial to heavy duty high traffic applications. Door solutions for schools, offices, commercial buildings and dwellings.

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new Aluminium Windows


Capital Commercial offer a range of low or medium rise curtain walling systems offering maximum flexibility in design and construction, enabling the creation of stunning large windows or facade glazing.

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A Complete Fenestration Solution

We provide products from the major names in architectural aluminium all of which are widely specified and approved by architects and main contractors.  All the aluminium systems we offer have been used in some of the finest buildings all over the world.

Suiting Client Requirements & Budgets

From a single window to a complete commercial building Capital Windows have the knowledge, skills and manufacturing experience to work with any kind of commercial installation project.

Our installation is second to none, using only highly trained installers and with utmost adherence to Health and Safety and Site Safety procedures and practices.

A Range Of Commercial Services

We offer varied services to suit the diverse nature of our commercial contracting work. This includes:

  • Expert Estimating using the latest costing software
  • Project Management Services
  • Sophisticated Manufacturing Techniques and Machinery
  • Health and Safety and Method Statements
  • Caring After Sales Service

We can also advise you on other aspect of commercial work such as specialist hardware, compliance with the Equalities Act, and much more.


“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.