Windows

Our windows can be provided in a wide variety of styles and colours, with endless choices of functions, accessories and finishes.

Cardiff's premier PVC-U home improvement group, Principality Installations ltd, provides the very best quality windows in your area.

Our Cardiff window installation team can help you pick the right windows to suit your home as well as supplying them, leaving you to sit back and relax. 

How can our windows help you?

Apart from improving the appearance of your property, our excellent fitting service, coupled with REHAU technology, will ensure that noise pollution is limited, allowing you to relax in peace and quiet. As well as this, due to the energy efficient glass we incorporate, your windows will keep warm air inside your home, helping you to save money on heating bills. We can supply the following:

  • uPVC windows
  • Double glazing
  • French windows
  • Security windows
  • Casement windows
  • Tilt & turn windows
  • And many more

Window styles are almost an endless choice of combinations. Tell us what you'd like and we'll create it. We can also offer a wide range of colours, available both sides or colour foil outside and white inside. Colours available:

  • Standard white
  • Oak
  • Mahogany
  • Rosewood
  • Chartwell Green
  • Anthracite Grey
  • Slate Grey
  • Steel Blue
  • Racing Green
  • Irish Oak
  • Cream
  • Ruby Red
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  • Strong, secure, and guaranteed to last
  • Leading Rehau window & door system
  • Robust construction for long-lasting performance
  • Ultra-secure Police-approved Secured by Design specification
  • Beautifully designed and expertly installed
  • Over 50 years’ combined company trading history
  • Unbeatable knowledge and experience
  • Wide range of colours and authentic woodgrain-effect finishes
  • Trade and DIY welcome

Keep warm, save energy and reduce heating bills

Energy-rated Rehau windows can significantly reduce your annual heating bills and as fuel prices rise, your savings will grow – and they’ll also help increase the value of your home.


Our windows can be provided in a wide variety of styles and colours, with endless choices of functions, accessories and finishes. Our aim is to make your home feel safer, warmer and more energy efficient. We are proud of the products and service we provide and are confident that you will be pleased that you decided to place your business with us.

Also in this in section

Box sash windows

Box Sash Windows enhance the appearance of your home, combining the elegance of sash windows with the benefits of modern materials.