Window and door renovation in Geneva

Lasting comfort. Optimal insulation. Custom aesthetics.

Renovate every window and door
Durability and insulation combined for your home

Windows and doors are the weak points of a building’s thermal envelope. Old single or standard double-glazed joinery can account for up to 25% of heat loss, in addition to letting in noise and compromising security. At Class Orga, we replace and modernise your windows and doors as part of our expertise in energy optimisation and CECB, for measurable gains in comfort, insulation and property value.

Every project starts with an assessment of the existing joinery: frame condition, glazing type, air tightness, acoustic performance and compliance with cantonal requirements. On this basis, we recommend the solutions best suited to your building, your energy goals and your budget.

Our window and door renovation services:

PVC, wood or aluminium windows: complete replacement with insulating frames, double or triple glazing with argon gap for an optimised Uw coefficient, while respecting the aesthetics of the facade.
Secure entrance doors: reinforced models with RC2 anti-intrusion protection, integrated thermal and acoustic insulation, multi-point locks and custom finishes.
French doors and sliding bays: thermally broken systems, low thresholds for accessibility, large formats to maximise natural light.
Technical glazing: high-performance triple glazing, reinforced acoustic glazing for facades exposed to noise, laminated safety glazing as needed.
Air tightness: compliance of frame-to-masonry connections with SIA 180 recommendations, installation of perimeter seals and treatment of thermal bridges at reveals.
Shutters, blinds and solar shading: supply and installation of exterior solar protections, manual or motorised, to control heat gains in summer.

Replacing windows and doors is one of the most heavily subsidised interventions in the Canton of Geneva (Building Programme, Eco21). We support you through the process to maximise the aid available. Each intervention is coordinated with facade insulation and plastering works for a perfect finish and seamless thermal continuity.