
Electrical installations, smart home, KNX, lighting, security technology and charging infrastructure as a master-craftsman business in Darmstadt
Elektro Keil GmbH
DarmstadtNew on Amplifa
About Elektro Keil
Elektro Keil GmbH is a family-run master electrician business from Darmstadt that has been implementing electrical installations for private households and companies since 1903. Its service portfolio covers electrical installations in existing and new buildings including power distribution systems, lighting and safety lighting systems, smoke and heat extraction systems (SHEVS), smoke detectors according to DIN 14676, telephone systems, and audio and video intercom systems. The company also plans and installs smart-home and KNX/EIB networking, wallboxes for e-mobility, IT networks and complete exhibition installations with power supply, lighting and media technology. Electrical planning, consulting, installation and maintenance including the E-Check according to BGV A3 and VDE 0100 are provided from a single source. As a certified KNX partner, the company trains skilled professionals in the 4th generation and, from Darmstadt city center to commercial projects, has completed over 500 projects.
- Site
- Darmstadt
- Processes
- Electrical installations (sockets, lighting, cabling, power distribution systems), Existing and new building installations (electrical systems), Wallbox installation (charging infrastructure for e-car/e-bike, 400-volt high-current connection), Smart home installation (networking of household/multimedia devices, control via radio/WLAN), KNX & EIB – networking of building technology (motion detectors, glass-break sensors, roller, IT networks (server setup, PC networking, device integration), Telephone systems (planning and installation), Calling and intercom systems (audio/video)
- Materials
- KNX & EIB, LED Technology, Smoke and Heat Extraction Systems, Wallboxes (E-Mobility), Smoke Alarm Devices
- Certificates
- E-Check according to BGV A3 / VDE 0100, KNX Partner (certified)
- Founded
- 1903
- Industries
- Private households, Commercial/Companies, Exhibitions/Trade fairs
- 01
Electrical planning and consulting
- 02
Installation of electrical systems
- 03
Networking and system integration
- 04
E-Check and maintenance according to BGV A3 / VDE 0100
Services and Systems
KNX & EIB
Certified networking of building technology, from motion detectors and roller shutter control to security systems.
LED Technology
Modern luminaire technology for energy-efficient lighting systems in indoor and outdoor areas.
Smoke and Heat Extraction Systems
Ensuring escape routes and smoke extraction in the event of fire for buildings.
Wallboxes (E-Mobility)
Installation of charging infrastructure with 400-volt high-current connection including cable tools and grid operator registration.
Smoke Alarm Devices
Installation and annual maintenance of smoke and radio-enabled smoke detectors in accordance with DIN 14676.
Location

Darmstadt
DEOperations and Administration
- Materials
- Electrical engineering, KNX, LED
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electrical installations (sockets, lighting, cabling, power distribution systems)Assembly | – | – | – | – | – |
| Existing and new building installations (electrical systems)Assembly | – | – | – | – | – |
| Wallbox installation (charging infrastructure for e-car/e-bike, 400-volt high-current connection)Assembly | – | – | – | – | – |
| Smart home installation (networking of household/multimedia devices, control via radio/WLAN)Assembly | – | – | – | – | – |
| KNX & EIB – networking of building technology (motion detectors, glass-break sensors, rollerAssembly | – | – | – | – | – |
| IT networks (server setup, PC networking, device integration)Assembly | – | – | – | – | – |
| Telephone systems (planning and installation)Assembly | – | – | – | – | – |
| Calling and intercom systems (audio/video)Assembly | – | – | – | – | – |
| Smoke and heat extraction systems (SHEVS) – planning and installationAssembly | – | – | – | – | – |
| Smoke detectors (installation/maintenance according to DIN 14676, radio-enabled smoke detectors)Assembly | – | – | – | – | – |
| Lighting systems (planning and installation for indoor/outdoor areas, LED technology)Assembly | – | – | – | – | – |
| Emergency and safety lighting (planning, installation, maintenance)Assembly | – | – | – | – | – |
| Christmas lighting (planning, installation for private and public areas)Assembly | – | – | – | – | – |
| Exhibition installations (power supply, lighting, media technology for exhibitions/trade fairs)Assembly | – | – | – | – | – |
| E-Check and maintenance of electrical systems (inspections according to BGV A3 and VDE 0100,Testing | – | – | – | – | – |
| Electrical planning and consulting (project planning of electrical systems)Engineering | – | – | – | – | – |
Additional services
Quality and Testing
Inspection and maintenance of electrical systems are carried out in accordance with BGV A3 and VDE 0100, smoke detectors according to DIN 14676. On request, the staff offer maintenance contracts including monthly testing in accordance with BGV A3.
| Evidence | Darmstadt |
|---|---|
| E-Check according to BGV A3 / VDE 0100 | |
| KNX Partner (certified) |
Company History
- 1903
Founded by master electrician Georg Keil as the 'Electrotechnical Institute for Lighting and Power Systems' on Ahnstraße, Darmstadt; purveyor to the Grand Ducal court.
- 1944
Company destroyed in an air raid; continued by Wilhelmine Keil
- 1979
Converted into a GmbH (limited liability company)
- 1989
Wolfgang and Hannelore Keil took over the company
- heute
Continued in the 4th generation by Christina and Vincent Vigh