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Timber always adds naturalness and cosiness to your living areas. However, an aluminium clad is fitted to the outside of this window with integrated blinds HV 350 so that the timber stays protected from weather influences. You can design this aluminium clad in many colours. The sun protection is situated between the glass panes, protected from wind and weather. Highly thermally insulating thermal foam ensures excellent thermal insulation.

Timber-aluminium window with integrated blinds HV 350 can be combined with all UPVC-aluminium and Internorm UPVC-aluminium windows with integrated blinds. HV 350 is available in four different design styles. Choose the suitable version for your dream house!

Quadruple protection in one window

Internorm windows with integrated blinds unite four advantages in only one window:

  1. Sun protection
    You can choose between blinds, Venetian blinds or Duette® blinds. These are situated between the glass panes. Thus no extra building work is required. The blinds are only suitable in their closed state as perfect sun protection; by adjusting the angle of the slats you can regulate exactly the amount of light coming in.
  2. Privacy protection
    Protect yourself from unwanted observers with blinds and Venetian blinds. Duette®blinds offer excellent privacy protection, the aluminium coating of this double Venetian blind hardly lets any light through and ensures perfect blackout.
  3. Thermal protection
    Insulation fitted into the window frame ensures excellent U values. Thus, the UPVC-aluminium window with integrated blinds KV 440 achieves a Uvalue as low as 0.64 W/(m2K). The timber-aluminium window with integrated blinds HV 350 achieves even a UW value as low as 0.60 W/(m2K)
  4. Sound protection
    Soundproof windows are especially important near busy roads. Internorm windows with integrated blinds also score highly here. KV 440 achieves a sound protection value of up to 45 dB, HV 350 even up to 47 dB.


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.