For more than 125 years, Demenga Glas AG has stood for quality, craftsmanship, and a true passion for glass. As a long-established glazing company based in Basel, we combine traditional expertise with modern innovation – supporting you from the first idea to the final installation . Our experienced team handles all types of glasswork for interior and exterior projects , whether in new construction, renovations, or custom interior design. No pane is too large, no site too challenging – even complex installations in hard-to-reach areas are carried out safely and efficiently. What sets us apart is not only our technical skill, but our deep enthusiasm for working with glass. From architectural glazing to tailor-made shower enclosures, glass partitions, and design elements, we create durable, elegant, and functional solutions that meet your specific needs. What we offer: • Over 125 years of experience in glass construction • Personal consultation & customized solutions • End-to-end service: planning, production & installation • 24-hour express repair service • High-quality glass products for both private and commercial clients Whether you're dreaming of a custom kitchen backsplash, a frameless glass shower, a glass divider wall, or something entirely unique – we’re here to bring your vision to life . Get in touch – we’re happy to advise you!

From consultation and planning to implementation and subsequent servicing, we are your partner when it comes to heating and solar systems. We specialise in heating renovations, particularly when it comes to installing heat pumps. You can also call us at any time for replacement and repair work. We can replace old pipes or pumps or flush the underfloor heating. Or do you have problems with your boiler? Then we will replace it or clean it accordingly.

Gruner All according to plan. Gruner is a leading engineering, design and planning consultancy in the construction industry. In the business areas buildings, infrastructure, and energy, we support our private and public clients in all project phases from strategic planning through construction to commissioning and management of buildings and infrastructure. In doing so, we combine services from a comprehensive range of competencies such as structural design, geotechnics, general planning, building services, energy production and distribution, road and rail construction, civil engineering, environment, safety, security, and spatial planning in order to offer optimal and sustainable solutions. With more than 1.100 highly qualified employees in over 30 offices in Switzerland, Germany, Austria, Serbia, Georgia, Turkey and Tajikistan, as well as at countless project locations worldwide, we are always close to the customer and where development and construction are taking place. Thanks to interdisciplinary cooperation, we set new standards in engineering methods and the application of digital processes. We are constantly evolving in step with our customers. Gruner is an independent family business headquartered in Basel/Switzerland and we are proud that we have been providing innovation and inspiration since 1862.

Speditiv, kompetent, sorgfältige Ausführung, faire Preise

Pitched roofs The traditional roof shapes protect the building permanently from all weather influences. Materials such as clay or concrete tiles, fiber cement, natural slate or metal require not only traditional craftsmanship but also technical knowledge in their application. We would be happy to advise you on this and offer you a solution tailored to your property. Flat roofs The flat roof is particularly popular in modern architecture. Its advantages are better use of space, accessibility (as a terrace or garden) and its storm resistance. With competent advice and good craftsmanship, it fulfills its task perfectly for decades, contrary to many opinions. By greening flat roofs, ecologically valuable open spaces can be reclaimed. Services: For your safety, we recommend our periodic inspection service. This includes: Visual inspection of the roof for damage or loose parts Replacing defective roof material, etc. Checking and cleaning sheet metal connections We would be happy to advise you personally. We look forward to your inquiry.

Are you looking for a professional roofing company that will provide you with quality work and reliable service? Then you have come to the right place! As experienced roofers, we offer a wide range of services including roof repairs, roof restorations, new roof construction and much more. Our experienced team is made up of highly trained professionals who complete each project with care and precision. We only use the best materials to ensure your roof is strong and durable. We also place great importance on customer satisfaction and work closely with you to ensure that all of your needs are met. If you are looking for a reliable roofing company, do not hesitate to contact us. Our friendly and knowledgeable team is always available to help you with any questions or concerns. Trust us when it comes to your roof and enjoy a worry-free, long-lasting solution. Contact us today to schedule an appointment!