Light - our passion for over 30 years Sir Heian stands for high quality and professional service in the lighting market. With well over 30 years of experience in high-quality luminaires and lighting systems and their planning, we will find the best solution for you. The changing times bring positive things: With a large network of suppliers and partners we are always up to date with the latest technology. Especially thanks to LED technology, we can focus our attention on resource-friendly lighting systems and luminaires in combination with a wide variety of designs. Our manufacturers are certified companies, which produce environmentally friendly according to the latest standards. The transport routes are kept as short and gentle as possible to guarantee fast response times and to generate a positive impact on our environment. Our respect for our planet and our environment has taught us to be innovative and passionate. As a team together under one roof - this is how we pull together and bring a huge amount of knowledge for our customers thanks to our mix of ages, places of residence and years of experience in different fields.

Schön gibt es heutzutage doch noch so nette kompetente, Fachleute, welche für jedes Problem eine gute und schnelle Lösung finden. Ein grosses Dankeschön an das ganze A D H-Team. Mit freundlichen U.S

Very professional assistance. Flexible individual approach.

conversions, renovations, new developments - pre investment studies, planning, site management, cost control

My experience here has been nothing short of impressive. From the moment you arrive, you can feel the level of professionalism and care that goes into every interaction. Visitors are welcomed warmly, guided clearly, and supported with patience, making the entire process smooth and stress-free. For businesses, the environment is structured, efficient, and well-organized, allowing you to focus on what truly matters without unnecessary delays or confusion. The staff consistently demonstrates a strong commitment to service, communication, and customer satisfaction. They pay attention to details, respond promptly to inquiries, and make sure everyone—whether a first-time visitor or a long-term business partner—receives equal attention and respect. It’s a place where you feel handled with dignity, and where quality truly speaks louder than words. I highly recommend this experience to anyone seeking reliability, professionalism, and genuine support.