Windows
PVC and aluminium windows for reliable insulation and clean aesthetics.
BO Fenster offers a complete range of energy-efficient windows with matching accessories and systems from leading manufacturers.
Optimised thermal insulation
Profile and glazing solutions that reduce heating costs and improve comfort.
Flexible opening styles
Tilt-turn, sliding and fixed lights — whatever your building requires.
Renovation & new build
Technically matched solutions for existing buildings and new projects.
Expert installation
Qualified installation team, clean worksite and precise project management.
Reply within 24h
A clear reply within 24 hours of receiving your request.
Free quote
No-obligation request, tailored to your building.
Active across Switzerland
Services for private homeowners, businesses and residential buildings.
Technical specifications
Window solutions at a glance
Materials
- Stabilised PVC profiles
- Aluminium frames with thermal break
- Dual-colour (inside/outside) options available
Insulation
- Triple glazing available
- Uw values meeting Swiss standards
- Reduced thermal bridge effect
Security
- Standard multi-point locking
- Safety glass optional
- Anti-intrusion hardware available
Gallery
Window projects
Choosing the right system for your building.
PVC for insulation and versatility, aluminium for slim lines, large formats and contemporary architecture.
Kömmerling 76 MD
High-performance PVC profile with triple glazing, lasting insulation and lead-free construction.
- Uw down to 0.76 W/m²K
- Triple glazing
- Centre seal MD
Kömmerling 88
Premium system for maximum thermal insulation, ideal for demanding projects.
- 88 mm profile
- High rigidity
- Acoustic comfort
Aliplast Genesis 75
Modern, slim and resilient aluminium windows for contemporary architecture.
- Clean design
- Thermal insulation
- Wide colour range
Aluprof MB-86
Robust aluminium system for windows, French doors and large openings.
- Excellent rigidity
- Large dimensions
- Energy performance
Applications
Private homes
Window solutions for comfort and clean façades.
Apartment buildings
Cost-effective and durable systems for multiple units.
Renovation
Compatible windows that preserve character while boosting energy efficiency.
Request a quote
Your request for the right window solution
We prepare a clear proposal tailored to your project.