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The timber/aluminium HS 330 lift-sliding door integrates living spaces into the surrounding nature in a very unique way. By tearing down the border between the inside and the outside, they create a completely new and almost unlimited experience of space.

The large glass elements of the timber sliding doors can be opened effortlessly as the frame slides smoothly over the fixed glazing on the side. They are produced without a door sash which, if they were incorporated, would take up more of your vital and previous living space.

The Internorm HS 330 Timber/Aluminium Lift – Sliding door offers unique design and exceptional comfort, combined with high-quality technology:

  • More light through large glass areas.
  • Available up to a size of 580 x 320 cm.
  • Narrow Internorm sliding frame and frameless side elements.
  • Easy lifting and sliding of the sash with up to 400kg sash weight.
  • U-Value as low as 0.71, Triple Glazed as Standard
  • An Internorm energy efficient product, saving heating costs.
  • Low heat emission, with thanks to Internorm triple glazing.
  • No trip hazard, thanks to low threshold.
  • Attractive colours for individual design requirements.
  • Better stability, thanks to glass fibre threshold.
  • Can be perfectly combined with all other Internorm window systems


ecoHaus is Internorm’s No.1 UK Partner and has secured the No.1 UK Partner Award continuously from 2012 to 2017. ecoHaus are the UK’s flagship Internorm Brand Ambassadors and the longest serving UK Partner.

What distinguishes ecoHaus from other much smaller inexperienced regional distributors is our total commitment to the Internorm brand, our proven pedigree and our financial strength. Our un-paralleled commitment to Internorm elevates us to a unique position in terms of service, product knowledge and the necessary experience for what is an extremely technical product.

Sadly, there is no minimum criteria required to become an Internorm dealer, which is why the brand is so poorly represented on the whole.  New distributors come and go, invariably leaving customers in very unfortunate and distressing situations. However, with ecoHaus you are in extremely safe hands.

Our continued growth proves that ecoHaus has a tried and tested formula that is underpinned by quality at all stages. Our competitive advantage is the key to our success and this is supported by a unique relationship with Internorm.  Internorm are encouraging ecoHaus to establish a nationwide network of showrooms, and by 2018 this will be seven in total.

ecoHaus encourage potential clients to seriously consider who is best served to provide a full turnkey solution for their Internorm window and door requirements. Many of our competitors offer supply only solutions and we have seen countless examples where clients have had to arbitrate between third party installers and the window manufacturers when problems arise, which they invariably do. Why introduce this sort of risk?

ecoHaus are uniquely positioned to serve new build, self-build, refurbishment and re-modelling projects. We also undertake commercial contracts such as care, education, social housing, multi-residential, student accommodation and hotels. We are particularly strong in the commercial sector and fully comply with the rigorous and demanding requirements of main contractors.

ecoHaus take complete ownership of the supply chain, survey, procurement and critically the installation. Each contract we undertake is financially underwritten by Internorm; this is unique to ecoHaus and provides our customers with that additional sense of financial security.