Scotlands energy efficient window suppliers

Ecowin Ltd are Gaulhofer window suppliers in Scotland and the UK. Gaulhofer windows are highly energy efficient, we are also suppliers of curtain walling and glass to glass solutions. We specialise in Passive House (Passivhaus) approved or suitable windows and bring our experience to the domestic and commercial customer.


At Ecowin, we have over 10 years experience supplying highly energy efficient windows and doors, mainly to the Passive House market. We supply Gaulhofer windows to the residential and commercial market in the UK. Based in Scotland, Ecowin Ltd are able to supply and install to any location, including the highlands and islands. We only source the best quality, which are also Passive House (PassivHaus) suitable. Gaulhofer UK supplied by Ecowin, simply the best.


Ecowin Ltd take our projects seriously, that is why we will take you through the whole process and will supply after care support. We outsource our installation process to specially selected window installers, with years of experience. They will take pictures of the project before and after, which may be used for promotional purposes. All windows are made to measure, so we work closely with you, your architect, your builder and our specially selected installtion & surveying teams to give you the best service possible.


Passive house suitable windows (triple glazed) are becoming even more popular within the UK (even for replacement windows). With government targets to reduce C02 emissions, Passive house suitable windows are more than 50% better in performance than standard building regulation windows at 1.6w/m2k.  Passive House suitable windows start at 0.8w/m2k based on a window size of 1230mm x 1480mm. We do not use the A rating system but if we did, our suppliers windows would far exceed A rated.


Ecowin Ltd.

Registered in Scotland SC421883 - VAT Registration 136 2421 40


Tel: 01383 824 458

Opening hours Monday/Friday 9am - 5pm