
Building services from Unterkulm: plumbing and heating installation, renewable energies as well as planning and submission of building applications.

Kobal Gebäudetechnik AG
Unterkulm (CH) · HeadquartersNew on Amplifa
About Kobal Gebäudetechnik AG
Kobal Gebäudetechnik AG is a family business in Unterkulm in the canton of Aargau, specialised in building services. Its range of services includes plumbing installation and maintenance in renovation and new construction, the installation of all types of heating systems, the installation of heat distribution systems, heating service as well as emergency heating. In the field of renewable energies, the company implements wood heating systems using pellets, wood chips or log wood, heat pumps and solar thermal systems. In addition, Kobal offers consulting and planning, creates projects including 3D views and handles the submission of building applications; the processing of subsidy funds is also supported. The training of young people is important to the company; it trains certified plumbers (EFZ). The company philosophy emphasises the sustainable use of natural resources. From a sole proprietorship founded in 1962 with a focus on locksmithing and pipeline construction, the company evolved through Kobal AG and Kobal Sanitär GmbH into today's Kobal Gebäudetechnik AG.
- Site
- Unterkulm
- Processes
- Plumbing installation (renovation and new construction, installation and maintenance, service on, Heating installation of all types, Installation of heat distribution systems, Emergency heating, Wood heating systems (pellets, wood chips, log wood), Heat pumps, Solar thermal systems, Consulting & planning (plans including 3D views, submission of building applications)
- Materials
- Mineral cast
- Founded
- 1962
- Industries
- Building services, Building technology, Plumbing, Heating
- 01
Consulting & planning (including 3D plans, submission of building applications)
- 02
Plumbing installation and maintenance
- 03
Heating installation and installation of heat distribution systems
- 04
Implementation of renewable energies (wood heating systems, heat pumps, solar
- 05
Service and emergency heating
Materials
Mineral cast
Since 1973 trade in mineral cast sanitary fixtures; anchored in the company's historical core business.
Site

Unterkulm
CHHeadquarters
- Materials
- Mineralguss
Services and Components



Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plumbing installation (renovation and new construction, installation and maintenance, service onAssembly | – | – | – | – | – |
| Heating installation of all typesAssembly | – | – | – | – | – |
| Installation of heat distribution systemsAssembly | – | – | – | – | – |
| Emergency heatingAssembly | – | – | – | – | – |
| Wood heating systems (pellets, wood chips, log wood)Assembly | – | – | – | – | – |
| Heat pumpsAssembly | – | – | – | – | – |
| Solar thermal systemsAssembly | – | – | – | – | – |
| Consulting & planning (plans including 3D views, submission of building applications)Engineering | – | – | – | – | – |
Additional services
Company History
- 1962
Founded as a sole proprietorship by Josef Kolly with a focus on locksmithing and pipeline construction
- 1973
Gilbert Kolly joined the company; trade in mineral cast sanitary fixtures; Silvia Kolly took over the administrative work
- 1977
Foundation of Kobal AG by Josef and Gilbert Kolly
- 2002
Foundation of Kobal Sanitär GmbH with a focus on building services; Kobal AG continued to exist in the field of prefabricated wet cells and real estate
- 2003
Joël Kolly joined the family business
- 2011
Anja Kolly joined the family business
- 2017
Conversion of Kobal Sanitär GmbH into Kobal Gebäudetechnik AG