Passive House Windows

Internorm passive house windows, a pinnacle of efficiency and sustainable comfort.

Passive House Windows products

Care & Maintenance

All of our windows and doors were designed with our customers in mind, which means cleaning them is really easy. Internorm’s developers have hidden as many parts as possible in the window frame and sash.

Care & Maintenance products

Window Refurbishment

Thanks to AT-ECO you hardly notice a window exchange. Our installation team measure your windows and check structural conditions. Together with you, we are developing an exact time schedule.

Window Refurbishment products

Purchase Windows

Internorm products stand for excellent quality! We provide technical advice and service when supplying our products and take installation very seriously.

Purchase Windows products


With Internorm you do not need to decide for either uPVC/Aluminium windows or Timber/Aluminium windows. Both windows can be combined without any problems. The aluminium clad on the outside looks exactly the same. Thus, you can decide which material you would prefer for which room.

Combinability products

Sun Protection

Our sun protection additions are made to block out sunlight with every window for your loving home. We can provide over nine varieties of shutters and blinds plus an option to include control technology that enables you to automatically close your shutters/blinds at a push of a button.

Sun Protection products

Contact us for a free quote now!