Bill + Künzi AG

Broken heating system in a detached house. Appointment was arranged immediately; the heating technician was very friendly and competent and quickly found and fixed the problem. Highly recommended.

I am very satisfied. An appointment was arranged immediately, the staff are very courteous, and the service is impeccable. Highly recommended!

Excellent service from start to finish! I received very friendly and helpful advice right from the first phone call. The plumber from Bill + Künzi arrived promptly and not only expertly resolved our drain problem but also proactively optimized the plug to prevent future blockages. His exceptionally friendly manner and professional, clean work were particularly impressive. A truly outstanding service – highly recommended!

Bill + Künzi installed a geothermal heat pump in our detached house. From the initial consultation, planning, and quote, through to the installation, construction management, and coordination with the drilling company, electrician, and builder, right up to the final invoice, everything was perfect. Despite inflation, the quoted price was adhered to precisely during the clearly communicated waiting period, and the heat pump was commissioned exactly on the promised day. Furthermore, their quote was one of the most competitive. Highly recommended.

We received a CTA indoor air source heat pump from Bill & Künzi in November 2020. From planning to installation, conversion, commissioning, and service, everything was implemented perfectly. The situation in our terraced house was complicated (noise regulations meant an outdoor pump wasn't possible), and the indoor CTA with its custom-designed intake shaft was the best solution. Coordination, information, scheduling, the dismantling of the old boiler, and the subsequent installation were all flawless. Today, the Magna filter was serviced. Everything was top-notch – friendly, informative, and customer-oriented. It's a shame you can't give six stars; Bill & Künzi deserve an extra one.