Heritage
Historic windows. Modern insulation.
SIA and Minergie compliantBO Fenster supports historic or listed buildings with windows and doors that respect the character of the façade, match existing details and meet modern requirements.
Tell us about your building
Current reference project
Complete window replacement on a listed building — bespoke pine timber units with high-performance glazing, while fully preserving the historic aesthetic.
BEFOREStarting situation
- 1Listed building in Gals
- 2Windows critical to aesthetics and thermal insulation
- 3Issues: damaged timber, weak thermal and acoustic insulation, water ingress
- 4Goal: restoration and improvement while preserving historical character
DURINGRenovation work
- 1Removal and dismantling of old windows
- 2Bespoke fabrication in pine timber (92 mm / 68 mm profile)
- 3High-performance glazing Ug=0.5 with bonded glazing bars, colour RAL 9016 or light grey
- 4Installation with internal/external seals and drip caps
- 5Careful finishing and full site clean-up
AFTERFinal result
- 1Improved thermal and acoustic insulation (average Uw ≈ 0.98 W/m²K)
- 2Better protection against weather
- 3Preservation of original architectural style
- 4High-quality workmanship and modernised aesthetics