
Family-owned company for electrical installation, switchgear construction, industrial assembly as well as photovoltaics and e-charging infrastructure.

SLEZAK Elektroanlagen GmbH
Uetersen (Esinger Steinweg 48) · DENew on Amplifa
About us
SLEZAK Elektroanlagen GmbH is a family-owned company founded in 1987 and headquartered in Uetersen, Schleswig-Holstein. The company offers electrical installations for residential, commercial and industrial buildings, including new construction, renovation and maintenance. Services also include the planning and installation of photovoltaic systems, charging infrastructure for electric vehicles and smart home solutions. In its own switchgear construction department, customized solutions for control and automation technology, low-voltage switchgear and power distributions are manufactured and installed. Industrial installation includes the wiring of machines and systems, the integration of automation systems and the complete electrical supply of industrial buildings. The company employs 35 staff, including six apprentices, and trains electronics technicians for energy and building technology as well as for automation and systems technology. As a guild-certified trade business, E-Mark and E-CHECK business as well as a certified e-mobility specialist company, SLEZAK operates in the fields of residential buildings, commercial and industry.
- Site
- Uetersen
- Processes
- Electrical installation (residential, commercial and industrial buildings, new construction,, Photovoltaic system installation, Charging infrastructure for electric vehicles, Smart home solutions, Switchgear construction (control and automation technology), Low-voltage switchgear, Power distributions (industry, commercial, private customers), Industrial installation (machine wiring, automation systems, machine control)
- Certificates
- Guild-certified trade business, E-Mark business, E-CHECK business, Certified e-mobility specialist company
- Founded
- 1987
- Employees
- 35
- Industries
- Residential buildings, Commercial, Industry, Photovoltaics, E-mobility, Building automation
- 01
Electrical engineering and planning of electrical systems
- 02
Switchgear construction (control and automation technology,
- 03
Electrical installation and industrial assembly (machine wiring, hall and
- 04
Service and maintenance
Locations

Uetersen
DEHeadquarters with office, workshop and warehouse
Components






Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electrical installation (residential, commercial and industrial buildings, new construction,Assembly | – | – | – | – | – |
| Photovoltaic system installationAssembly | – | – | – | – | – |
| Charging infrastructure for electric vehiclesAssembly | – | – | – | – | – |
| Smart home solutionsAssembly | – | – | – | – | – |
| Switchgear construction (control and automation technology)Assembly | – | – | – | – | – |
| Low-voltage switchgearAssembly | – | – | – | – | – |
| Power distributions (industry, commercial, private customers)Assembly | – | – | – | – | – |
| Industrial installation (machine wiring, automation systems, machine control)Assembly | – | – | – | – | – |
| Electrical engineering and planning of electrical systemsEngineering | – | – | – | – | – |
Additional services
Quality
As a guild-certified trade business, E-Mark business, E-CHECK business and certified e-mobility specialist company, the company works in accordance with the recognized rules of technology of the electrical industry.
| Evidence | Uetersen |
|---|---|
| Guild-certified trade business | |
| E-Mark business | |
| E-CHECK business | |
| Certified e-mobility specialist company |
History
- 1987
Norbert Slezak goes self-employed from his own home
- 1987
Relocation to an office in Hamburg Schenefeld
- 1990
Relocation to Uetersen in the 1990s
- 1994
André Slezak joins the company
- 2002
Move into the new premises at Esinger Steinweg 48, Uetersen; Frank Slezak joins the company
- 2007
Frank Slezak becomes master electrician (Elektrotechnikermeister)