
Heating, plumbing, ventilation and solar technology: planning, installation and maintenance from a single source

arnaldi energie wasser AG
Thun (Headquarters) · Erlenbach i.S. (Branch)New on Amplifa
About us
arnaldi energie wasser AG is a Swiss building services company headquartered in Thun with a branch in Erlenbach im Simmental. For more than 25 years, the company has been active in the field of water and heating technology installations, implementing solutions for heating, plumbing, ventilation as well as solar and photovoltaic technology. Its range of services includes energy concept consulting, system planning, installation and modernisation of heating systems and heat pumps, plumbing installations, ventilation systems as well as maintenance and repair work. The team of around 12 to 13 employees accompanies projects from the initial idea to the finished installation, primarily for residential construction as well as new builds and renovations in the Thun region, the Simmental and the surrounding area. The company works with a network of partner companies, focuses on energy-efficient and low-maintenance technology and trains apprentices.
- Site
- Thun
- Processes
- Heating installation (planning, execution, modernisation, repair), Plumbing installation, Ventilation installation, Solar/photovoltaic installation, Heat pump installation, Energy concept consulting and system planning, System maintenance and servicing, Heating installation and heating modernisation
- Certificates
- Suissetec association, GEAK (energy certificate), Minergie
- Employees
- approx. 12–13 (team
- Industries
- Building services/MEP engineering, Residential construction, New builds and renovation
- 01
Energy concept consulting
- 02
System planning
- 03
Installation / execution
- 04
Modernisation
- 05
Maintenance and repair
Locations

Thun
CHHeadquarters
- Materials
- Heating, plumbing, ventilation, solar/photovoltaics

Erlenbach i.S.
CHBranch
- Materials
- Heating, plumbing, ventilation, solar/photovoltaics
Components & Systems




Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Heating installation (planning, execution, modernisation, repair)Assembly | – | – | – | – | – |
| Plumbing installationAssembly | – | – | – | – | – |
| Ventilation installationAssembly | – | – | – | – | – |
| Solar/photovoltaic installationAssembly | – | – | – | – | – |
| Heat pump installationAssembly | – | – | – | – | – |
| Energy concept consulting and system planningEngineering | – | – | – | – | – |
| System maintenance and servicingAssembly | – | – | – | – | – |
Additional services
Quality
The company relies on high-quality materials, consistent quality control and a trained team undergoing regular further education.
| Evidence | Thun | Erlenbach i.S. |
|---|---|---|
| Suissetec association | ||
| GEAK (energy certificate) | ||
| Minergie |
History
Active for over 25 years in the field of water and heating technology installations; founder Massimo Arnaldi
- 2023
Team strengthened by HVAC employee Patrick Briggen