Roof windows

Roof window elements by HP Gasser – Swiss quality craftsmanship coupled with state-of-the-art technology.

Our high-quality roof windows offer high safety, durability and a vast functionality that makes them an easy choice.

HP Gasser offers best quality and a large selection of surface roof windows. Our many options for roof window elements ensure a perfect solution for almost every need. You gain additional natural light and living comfort and benefit from best space utilisation. Convince yourself of our multi-faceted product portfolio. Feel free to contact us – our qualified sales advisors will help you choose the right product and will provide you with more information on our roof windows.

Impressive variety of roof windows

HP Gasser

Standard elements

HP Gasser

Variable elements

HP Gasser

Roof access

HP Gasser

Handyman roof access

HP Gasser

Glass flooring

HP Gasser

Challenging regions

HP Gasser

Noise insulation


Tailored to your needs from A to Z

Roof windows fulfil important functions in a building. They provide light, they allow air to circulate under the roof, and – depending on their size and position – they offer a beautiful view of the surroundings. Good heat insulation helps save energy. And safety aspects are not neglected either. HP Gasser knows exactly which advantages and requirements roof windows have. You can trust us based on our years of experience, state-of-the-art technology and our professional all-round service. Apart from guaranteeing best Swiss quality, we also offer surface roof windows that are tuned to your needs to the exact millimetre. From the first planning up to assembling on your roof, we will be by your side, with our know-how and as active partner.

Your wish is our challenge

No matter how particular your roof window should be, we always find a tailored solution for you. From the very first idea you will benefit from our vast experience and comprehensive knowledge on roof windows. Our advisors will show you window options that perfectly meet your needs and that are specifically tuned to your flat roof or pitched roof project. As a matter of fact, we are best equipped for all process steps owing to our trained specialized staff, consisting of advisors, planners, technicians, craftsmen and fitters. With us your roof windows are in best hands.

Variety and spirit of innovation

The name HP Gasser stands for a variety of roof window solutions. But not only: Our different products have been designed with a large spirit of innovation. You will find detailed information on our product-specific pages:

  • Standard elements: rapid fitting at an attractive price
  • Variable elements: fixed glazing elements according to your design preferences
  • Roof access: modern design, for a safe and convenient access to your roof
  • Worker roof access: maximum variability, optimal heat insulation
  • Glass flooring: high safety, brightness and variability
  • Challenging regions: elaborate and affordable windows for regions with heavy snowfalls
  • Noise insulation: for ease and comfort in noisy surroundings

Focus on Swissness

We leave nothing to chance when planning and producing roof window elements. All HPG elements are designed using digital planning data according to our clients’ preferences. The combination between best-trained staff members and state-of-the-art technology promises the delivery of first-class surface roof windows. Our CNC manufacturing technology guarantees maximum efficiency and highest production quality. In our workshop in Lungern, we work regardless of the weather and manufacture all elements using high-quality materials. We attach great important to Swissness, which to us means first-class products and service. This is what we aim to offer our clients.

Ecological roof windows

We also strive to handle our environment with care. For our windows we use renewable raw materials in our desire to manufacture sustainable products. We focus on using certified domestic wood and insulating materials that have been produced ecologically. This is our contribution to ecology. It is not without reason that our fixed glazing elements are called «HPG oecoline®». The insulation frame we use for our roof windows meets the requirements of the Minergie-Eco label, which stands for a salutary and ecological construction. It also proves excellent insulation values and allows you to save energy over the long term.

Durable and safe skylights

Roof windows are a long-term investment. Our products are known for their durability. Since we use exclusively high-quality materials and work only with experienced specialists, quality is absolute. Our pitched roof windows and flat roof windows prove of excellent thermal properties, impact resistance, functionality, aesthetics and crystal-clear views. Moreover, we use proven roof window products by Roto (e. g. pivot windows) and VELUX® (VMS System). As a valuable accessory, we use special solar protection glass panels. Our skylights can easily be equipped with openings for natural vents that draw heat and smoke out of the building.

Excellent service

Our work does not simply consist of the production and finishing of roof window elements. Among our services we provide scheduled delivery: Your ordered elements are delivered ready to fit, on site and when needed. Our experts monitor the window fitting process on site. This allows us to ensure a time-saving and cost-reducing installation. Needless to say, we are at your service even after project completion – we strive for long-dated customer relations. You can count on our excellent customer service.

7 reasons for HP Gasser

  • Custom roof window elements
  • State-of-the-art technology
  • Ecological construction
  • Best Swiss quality
  • Durable and safe products
  • Extensive experience in roof window manufacturing
  • Professional all-round service

Roof windows made by experts

Benefit from our comprehensive and extensive know-how. Feel free to contact our experts at HP Gasser AG: Together we will develop the best solution for your building plans. Our roof window solutions provide light and air wherever you want.


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