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Our Internorm entrance doors range is available in four different design styles; Ambiente, Homepure, Homesoft and Studio, in five aluminium door systems and two timber-aluminium door systems with countless model choices.

As each Internorm entrance door is custom-made in Austria, you can customise it to your taste, whether you choose a full door leaf or a door with glass cut-out and then select the desired side elements, fanlights, handles, colours etc. the choices are only limited by your imagination.

Internorm entrance doors are available in both aluminium and timber/aluminium offering the perfect burglary protection in an attractive design. Standard 5-point locking from renowned manufacturer KFV renders these entrance doors burglary-proof. Countless door models are available. Colours, handles and glazing options can be designed exactly according to your ideas. The inside of the door features a multi-layer plate setup which ensures best thermal insulation and high sound protection, reducing sound by as much as 36 decibels.

Of course, internorm entrance doors can also be equipped with a finger scanner, keypad (code keyboard) or further security systems.

The doors in a passive house plays a prominent role in two ways – firstly, the heat loss despite large glass surfaces can be reduced and secondly, windows increase the possibility for heat gain through solar energy. Internorm‘s highly thermally insulated windows do this exceptionally well: thermal insulation glazing as used in passive houses achieves Ug values of up to 0.4 W/m2K.

Passive House

A benefit to installing Internorm windows and doors is that you able to achieve Passive House status which means your house has consistent, comfortable temperatures throughout the year, without using conventional heating or air conditioning systems. Using the existing temperature provided via solar radiation through the doors as well as the heat from appliances and inhabitants is sufficient.

The required heating energy for a passive house is only 10% of that needed for a conventional house. These extraordinary savings are rooted in the two basic principles of minimising thermal loss and optimising thermal gain.

Cherwell Windows is a family run glazing solutions business that offers made to measure high performance windows and doors.

Since 1986, clients have come to Cherwell in the knowledge that they only work with the best suppliers and will be able to choose from the finest products with the latest glazing technology. They will guide you through the process, from your first enquiry, throughout both the installation and post-installation. To give their customers added peace of mind, all their installers are employed, so there’s no messing around with third-parties. Each one is highly trained and multi-skilled to fit any material in all designs.

Not only do they work with Europe’s leading windows and doors manufacturer, Internorm, but they also have products for every solution, including; timber, timber alternative, aluminium, composite and uPVC.

Their brand, Internorm by Cherwell, is proud to have been awarded an Internorm 1st Window Partner. Their range includes the best performing thermally efficient windows on the market that are beautifully made and engineered to your specifications. Each product is available in a choice of three materials; timber/aluminium, uPVC aluminium and uPVC, allowing you to customise your windows to your home.

Internorm windows also benefits from these key features:

  • Passive House
  • Triple glazing
  • Thermally broken windows
  • Integrated blinds – controlled via remote and iPad.
  • Noise Reduction
  • In-frame ventilation systems providing you with a climate-controlled system whatever the weather.

Their other partners include;

  • Evolution Windows – The UK’s leading timber alternative windows and doors specialist
  • Origin Global – The UK’s leading aluminium windows and doors specialist
  • Bygone Collection – The UK’s leading timber alternative sash window specialist.
  • Cherwell Timber – One of the UK’s leading timber window and door specialist.

All their products offer low U values, high security and a wide range of finishes and glass types to suit your project.

Covering Oxfordshire, Buckinghamshire and Warwickshire and Northamptonshire, they have showrooms in Banbury, Beaconsfield and Henley-on-Thames, each with knowledgeable staff that will be happy to talk you through their product range.