
Plumbing installation and bathroom planning company for bathroom conversions, wellness rooms and building services maintenance in Hinwil

Dubach AG
Sonnenhofstrasse 1, 8340 Hinwil (CH)New on Amplifa
About Dubach AG
Dubach AG is a plumbing installation company in Hinwil in the Zurich Oberland, specialising in the planning and professional interior fit-out of bathrooms and wellness rooms. Its offering includes bathroom planning with 3D concept plans, advice on wall and floor coverings as well as colour and lighting concepts, site management and coordination of bathroom conversions, and all sanitary building installations in accordance with Swiss regulations. This includes the installation of hot water, cold water and drainage lines, service work such as tap and cistern repairs, boiler maintenance and the installation of water softening systems. Customers are accompanied from the initial idea through the cost quotation and scheduling to handover. The headquarters at Sonnenhofstrasse 1 feature a sanitary showroom, a competence room with material and colour samples, and a wellness room. The family business, founded in 1954, is run in its third generation by Cornelia Dubach and Martin Dubach-Lehmann.
- Site
- Hinwil
- Processes
- Bathroom planning / bathroom design (3D concept plans, floor plan design), Site management / construction supervision for bathroom conversions, Installation of hot water, cold water and drainage lines, Installation of water softening systems, Sanitary service work (repair of taps, cisterns, drains), Boiler maintenance (descaling, seal and anode replacement), Plumbing work (sanitary installations and plumbing), Advice on wall and floor coverings, colour and lighting concepts
- Certificates
- TOP company 2026, TOP company (GTW)
- Founded
- 1954
- Industries
- Bathroom interior fit-out, Sanitary installation, Wellness
- 01
On-site inspection and measurement
- 02
3D concept planning and floor plan design
- 03
Advice on products, coverings, colour and lighting concepts
- 04
Cost quotation and scheduling/site coordination
- 05
Site management and execution
- 06
Sanitary installations and service work
Sites
Hinwil
CHHeadquarters, workshop, office, showroom
Services



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bathroom planning / bathroom design (3D concept plans, floor plan design)Engineering | – | – | – | – | – |
| Site management / construction supervision for bathroom conversionsAssembly | – | – | – | – | – |
| Installation of hot water, cold water and drainage linesAssembly | – | – | – | – | – |
| Installation of water softening systemsAssembly | – | – | – | – | – |
| Sanitary service work (repair of taps, cisterns, drains)Assembly | – | – | – | – | – |
| Boiler maintenance (descaling, seal and anode replacement)Assembly | – | – | – | – | – |
| Plumbing work (sanitary installations and plumbing)Assembly | – | – | – | – | – |
| Advice on wall and floor coverings, colour and lighting conceptsEngineering | – | – | – | – | Wall coverings, Floor coverings |
Additional services
Quality
In 2026, Dubach AG was certified as a TOP company by GebäudetechnikWelten Genossenschaft with 423 out of 456 points. Installations are carried out in accordance with the latest Swiss regulations.
| Evidence | Hinwil |
|---|---|
| TOP company (GTW) |
History
- 1954
Company founded for sanitary installations and plumbing by Jakob and Emma Dubach in Hinwil
- 1955
Relocation to Dürtnerstrasse 28
- 1967
Occupancy of the new residential, workshop and office building at Sonnenhofstrasse 1
- 1975
Gold medal at the Vocational Olympics plumber-sanitary installer in Madrid, won by Erwin Dubach
- 1983
Company taken over by Erwin and Regula Dubach
- 1995
Foundation of the BauHa team for bathroom conversions
- 2000
Membership of BadeWelten, opening of the sanitary showroom and trend shop
- 2001
Expansion of the bathroom showroom with a wellness room
- 2004
Completion of the competence room
- 2007
Expansion of the office premises and the showroom
- 2009
Nomination for the design competition 'Das beste Schweizer Bad' (The Best Swiss Bathroom)
- 2014
Renovation of the showroom premises
- 2017
Redesign of the wellness facilities
- 2018
Takeover of the business by Cornelia and Martin Dubach-Lehmann
- 2019
Expansion of the showroom premises in the 'Grundstein' building
- 2026
Awarded as TOP company by GebäudetechnikWelten Genossenschaft