With just one click... access our roofing services
SFT CH, a Swiss craft company specializing in roofing, carpentry, and insulation, installs and replaces your Velux roof windows throughout French- and Italian-speaking Switzerland. We offer you the expertise of our Compagnons du Devoir roofers and carpenters to guarantee a watertight, attractive, and durable installation that is suited to Swiss weather conditions.
SFT CH guarantees optimal natural light, enhanced thermal comfort, and a flawless finish.
Installation of Velux roof windows
Installing a Velux roof window allows you to bring in more natural light and improve the ventilation of your attic, loft, or rooms under the roof.
Our craftsmen can install windows on all types of roofs, whether they are tiled, slated, or zinc.
Our installation services:
- Personalized study based on the orientation and slope of your roof.
- Creation of openings and reinforcement of the roof structure if necessary.
- Installation of manual, electric, or solar Velux windows.
- Installation of accessories: roller shutters, blinds, mosquito nets, rain detectors.
- Careful interior finishing (cladding, perimeter insulation).
Each installation is completely watertight and complies with SIA standards, ensuring seamless integration into the roof.
Replacement and renovation of Velux windows
Over time, old roof windows can lose their watertightness or energy efficiency. SFT CH offers complete or partial replacement of your roof windows, without modifying the roof structure.
The advantages of replacement:
- Reduced heat loss and thermal bridges.
- Better acoustic and thermal insulation.
- Improved watertightness and safety.
- Modernized aesthetics and increased light.
- Compatibility with the new high-performance Velux ranges.
✔ Our teams carefully remove the old installation and ensure the quick installation of the new Velux, with all SFT CH guarantees.
Roof waterproofing and finishes
A poorly sealed skylight can quickly become a source of leaks. Our roofers ensure a perfect connection between the window and the roof.
Our sealing solutions:
- Official Velux sealing kits (for tiles, slates, zinc, steel roofing).
- Installation of custom-made flashings, flashing strips, and sealing strips.
- Anti-condensation treatment and perimeter vapor barrier.
- Verification of proper rainwater drainage.
✔ Each job is carried out in accordance with Swiss safety and sustainability standards, with comprehensive quality control prior to delivery.
Custom accessories and comfort
We also offer a wide range of official Velux accessories to improve your comfort and extend the life of your installations:
- Manual, electric, or solar roller shutters.
- Blackout or light-filtering blinds.
- Integrated mosquito nets.
- Remote controls and smart sensors.
✔ SFT CH can advise you on the model and accessories best suited to your needs and budget.
SFT CH intervention zone
Our teams operate throughout Switzerland, including:
- French-speaking Switzerland: Geneva, Lausanne, Nyon, Fribourg, Neuchâtel, Sion, Montreux, etc.
- Italian-speaking Switzerland: Lugano, Bellinzona, Locarno, Mendrisio, Chiasso, etc.
- Other regions: Zurich, Bern, Lucerne, Basel and surrounding areas
We guarantee a rapid, meticulous response in accordance with Swiss standards, whether for the installation, renovation, or maintenance of your Velux windows.
Qualified and certified Velux craftsmen
All our roofers and carpenters are trained in Velux techniques and have extensive experience in installing and replacing roof windows.
Our quality commitments
- Full ten-year warranty on installation and waterproofing.
- Velux-certified materials and Swiss products.
- Meticulous workmanship and high-end finishes.
- On-time completion and clean work site.
- Free, no-obligation quote.
Why choose SFT CH for your roof windows?
- Swiss artisan company specializing in roofing and carpentry.
- Qualified Compagnons du Devoir craftsmen for Velux installation.
- Ten-year warranty and SIA compliance.
- Rapid response throughout Switzerland.
- Personalized advice and custom finishes.
✔ With SFT CH, you benefit from a watertight, high-performance, and attractive roof window, installed according to industry standards.
With just one click... access our roofing services
