ABOUT US With over 40 years of experience, Idrosun SA is today a well-established player in the wellness and building technology sector. Its story began in 1981 with a family vision: to offer tailored solutions that strike a balance between technical innovation and human care. Idrosun SA was born from the intuition of Willi Maag, who founded the company with the goal of uniting craftsmanship, technical expertise, and design quality. Over the years, the company has expanded its fields of operation, integrated advanced technologies, and established itself as a trusted partner for private clients, engineers, architects, designers, and businesses. Today, the company is led by Simon Maag, who took over from his father and now fully owns the company, continuing its development with a forward-looking approach. We are mainly active in Ticino , Engadin , the Zurich/Zug region , and Northern Italy , managing bespoke projects in residential, hospitality, and commercial settings. Thanks to our multilingual team, we communicate daily with clients and partners in Italian, German, English, and French , ensuring smooth and professional collaboration across multiple markets. From the very beginning, our way of working has stood out for its complete and structured method: every project is followed through all its stages – from the first consultation to the execution and long-term assistance – with consistency and care. An approach that has shaped the company’s identity and continues to define how we work. A story that keeps evolving, building new spaces of well-being every day. WE FOLLOW PROJECT STEP BY STEP We are dedicated to the well-being, comfort, and energy efficiency of our clients – both private and professional – combining cutting-edge technology with refined design. We manage every project in all its phases, from initial consultation to maintenance, ensuring rapid intervention and continuous support thanks to our emergency service active 24/7, 365 days a year. TAILORED DESIGN We create exclusive, custom-made environments that combine aesthetics and functionality. CONSTRUCTION AND INSTALLATION From construction to installation, we follow every step with precision. MAINTENANCE AND REPAIR Professional service to ensure durability and optimal performance. TECHNICAL CONSULTING AND AFTER - SALES Expert support for every need, even after installation. PRODUCT AND ACCESSORY SALES A complete range of solutions for the care and management of technical systems. OUR SERVICES Each project begins with the desire to create authentic, lasting, and personalized well-being. Our solutions combine technical know-how with aesthetic sensibility to shape functional and welcoming spaces, perfectly balanced between technology and design. Our work is structured into five main areas, all developed with the same focus on quality, efficiency, and sensory experience: WELLNESS Indoor and outdoor pools, whirlpools and spa tubs, saunas, cryo saunas and Turkish baths, cold plunge systems, biopools and natural swimming ponds. WATER TREATMENT Pumping stations and pressure boosting systems, treatment of grey and clear water, softeners and reverse osmosis systems, water distribution and irrigation systems, advanced filtration systems. HEATING AND COOLING Heat pumps and low-temperature systems, radiant heating and cooling systems, solar thermal systems for hot water production. VENTILATION Controlled mechanical ventilation systems, air treatment and dehumidification solutions, heat recovery for improved energy efficiency. AUTOMATION AND CONTROL Electrical panels and regulation systems, advanced home automation and remote control, photovoltaic systems for energy production. PRODUCTS AND ACCESSORIES Chemical products for water treatment, cleaning robots and accessories for pools and wellness areas, pool covers and safety solutions.

Our team includes highly qualified staff who have been passionately pursuing their profession for many years. In addition to experienced specialists, our team also includes young, committed employees. The harmonious cooperation of these diverse talents leads to an efficient work group. Whether it is about watching our carpenters on the roof, doing interior work or laying floors, or watching the joiners in the kitchen, bathroom or making furniture - you will see that each individual does their work with complete dedication and satisfaction. In our company you will find everything under one roof, made by a highly motivated team. It is a matter close to our hearts to pass on our knowledge to the next generation. For this reason, we enthusiastically train young apprentices in the professions of carpenter and carpenter. There is hardly anything more beautiful than watching these young people grow up with their tasks, duties and rights.

Badezimmer kernsaniert.

Von der Planung bis zur Ausführung alles top! Wir sind sehr zufrieden und glücklich mit unserer neuen Wohnung. Hat alles super geklappt, von A-Z. Ein super Team!

Electro H. Frei AG – Your Partner for Electrical Installations in Aargau Electro H. Frei AG is a premier company in the electrical industry with three locations in Hunzenschwil , Birr , and Auenstein . We provide comprehensive electrical services across the entire Aargau region, distinguished by our highly skilled employees, cutting-edge technology, and tailored solutions. Our Services Custom Electrical Concepts : At Electro H. Frei AG, we develop customized electrical concepts designed to perfectly meet your needs. Whether for commercial buildings or residential properties, we offer innovative and efficient solutions that adhere to the highest safety standards. Professional Electrical Installations : Our experienced electricians ensure precise and professional installation of all electrical systems. From home installations to industrial setups and smart home systems, we provide a full range of services under one roof. High-Quality Industrial Service : We place great emphasis on providing excellent industrial services. Our team ensures the smooth operation of your industrial equipment through regular maintenance and prompt repairs, minimizing downtime and ensuring continuous operational readiness. Electrical Engineering Consulting : Our expert team offers comprehensive consulting in all areas of electrical engineering. We assess your needs and provide tailored solutions that are both economically and technically optimal. Maintenance and Support for Electrical Systems : In addition to installation, we offer extensive maintenance and support for your electrical systems and equipment. Our services include regular inspections, preventive maintenance, and rapid response times for any issues or failures. Why Choose Electro H. Frei AG? • Experience and Expertise : With years of experience and extensive technical knowledge, we are your reliable partner for all electrical engineering needs. • Proximity to Clients : With locations in Hunzenschwil, Birr, and Auenstein, we are always close to you and can quickly respond to your requirements. • Quality and Reliability : We use high-quality materials and modern technology to provide durable and safe solutions. • Tailored Consulting : Our customized electrical concepts and solutions are precisely tailored to your specific needs. Contact us for personalized advice or a no-obligation quote. Visit us at one of our locations in Hunzenschwil , Birr , or Auenstein and discover how Electro H. Frei AG can handle your projects in Aargau with the utmost professionalism and expertise. We look forward to assisting you.

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