How quickly can you get to me?

Within our service area around Rendsburg, we generally attend urgent faults the same day. We'll give you a realistic arrival time on the phone as soon as we know which vehicles are out on the road. In case of imminent danger, securing the installation takes priority over the final repair.

My RCD keeps tripping. What should I do?

Switch off all appliances on the affected circuit and reset the switch once. If it trips again, there's a genuine fault current. Please don't attempt to reset it again — call us instead. An RCD that keeps tripping indicates a real fault and is protecting you at that very moment.

Is the power out in the whole building, or just at my place?

First check whether neighbouring flats are also affected and whether the street lighting is on. If the whole area is dark, it's a grid fault caused by the network operator — in this case, Schleswig-Holstein Netz. If only your flat or individual rooms are affected, the cause lies in the building's wiring and we're the right people to call.

What does the call-out cost if it turns out to be nothing serious?

Even then, we charge for the call-out and the time actually spent. Often the job is done within an hour, for example when a faulty appliance was the cause. Either way, you'll receive a clear, itemised invoice showing time spent and materials used.

Can you also come at night or on weekends?

Yes, for genuine emergencies such as smoke, hot sockets, water ingress into the electrics, or a complete failure of the heating system. Outside regular hours, a surcharge applies, which we'll tell you about before setting off. Less urgent work we're happy to schedule for the next working day.

Do I need to be on site during the call-out?

Someone needs to give us access to the flat and the meter cabinet and be reachable for questions. For managed properties, a key held by the property management company or a designated contact in the building is sufficient. Please arrange this with us when booking the appointment.

Open fuse box with a row of circuit breakers, one RCD switched to OFF, next to it a gloved hand holding a voltage tester.

Electrical contractor in Rendsburg

Fault repair service for power outages and defects

Name: Elektro Hansen
Address: Am Kanal 8, Rendsburg, Schleswig-Holstein, 24768, DE
Telephone: +49 30 23125102

When the RCD trips, a room stays dark or a socket no longer carries power, we track down the cause with measuring equipment — instead of swapping components on suspicion.

Report a fault View services

Rendsburg and surrounding area Master craftsman business Fault reports by phone Private, commercial, property management

Report a fault by phone

+49 30 23125102

We take fault reports by phone and prioritise them by urgency. Outside office hours, please leave your address, callback number and a description of the fault.

Report a fault using the form

are enough for a complete fault report: 5 details
cause investigation before any component is replaced: Measure first
measurement values and actions for every job: Written documentation

Fault reporting

One report, a clear process

On the phone, we first establish whether there is a hazard — then which areas are affected and what was last connected to the mains. These details determine which tools come along.

The more precisely the fault is described, the shorter the search will be on site. We note down your details, prioritise the report by urgency and give you a time window. Once the time window is set, we pack accordingly: insulation tester, cable locator, replacement breakers and the common circuit breaker types.

Address, floor and how the building can be accessed
Affected area: single room, whole flat, whole house
Which switch tripped: RCD or circuit breaker
Whether the switch can be reset or trips again immediately
What was last connected or in operation
Whether there is a smell of burning, smoke or visible damage

Open tool case of an electrician with an installation tester, test leads and insulated tools in front of a wall socket. — We pack test equipment and replacement components to match the reported fault.

What you can check before calling

Four steps that require no technical expertise and often already narrow down the cause. Anything beyond that is a job for a qualified electrician.

1

Check neighbours and the street

If it's also dark next door or the street lighting is out, the cause lies in the utility's network, not in your installation. In that case, your grid operator's fault line can help, not us.
2

Open the distribution board and check the switch positions

Open the fuse box cover and see which switch is in the OFF position: the wide RCD with a test button, or a single circuit breaker. Note down the labelling of the circuit.
3

Disconnect appliances from the mains

Unplug everything in the affected area — especially washing machines, tumble dryers, kettles, fan heaters and chargers. A faulty appliance is the most common cause of a tripped RCD.
4

Switch it back on once — not repeatedly

Reset the switch once. If it trips again immediately, leave it off and call us. Repeatedly switching it back on puts strain on the system and covers up clues that help with fault-finding.
5

Submit your report with your details

Call +49 30 23125102 or use the form. Tell us your address, the affected area, the switch position and what was last connected — we'll get back to you with a time window.

When you should no longer attempt anything yourself

If there is a smell of burning, smoke, scorch marks on sockets, visibly damaged cables or water in the distribution board: switch nothing on, leave the area and call us. In case of fire or acute danger, call 112 first. Working on live circuits is exclusively a job for a qualified electrician.

Typical faults

These are the cases we see most often

Four fault patterns make up the majority of our jobs. Each has a typical cause — and an approach we use to narrow it down before anything is replaced.

RCD (residual current device) trips

Usually a single appliance causes a fault current — often a washing machine, dryer, water heater or a charger. We disconnect the circuits one by one, measure the leakage current and identify the culprit instead of simply replacing the breaker.

Approach: Switch off circuits individually
Measurement: RCD trip current and trip time

Partial outage: one area without power

A room or a floor is dark while the rest works fine. This is often caused by a loose terminal in a junction box, a faulty circuit breaker or a broken conductor. Using a cable locator and continuity testing, we narrow the fault down to the affected section.

Tools: Cable locator, continuity tester
Common cause: Loose terminal in the junction box

Socket not working or showing scorch marks

Loose terminals create contact resistance that generates heat — visible as dark marks or a burning smell. We check the terminal, replace the socket insert and also inspect the neighbouring outlets on the same circuit.

Inspection: Terminal and neighbouring outlets
Result: Replacement with test report

Fault in the consumer unit

Breakers that no longer hold, loosened busbar connections, or a consumer unit without RCD protection. We survey the installation, document the measured values and tell you whether a repair is sufficient or a full upgrade makes more sense.

Survey: Written record of condition and readings
Outcome: Repair or full rewiring

Prices

What a call-out costs

You'll know what to expect before we even set off. The following guide prices apply to call-outs in Rendsburg and the surrounding area; billing is based on actual time and materials used.

Guide prices for emergency call-outs

All prices include VAT, as of 2025.

Anfahrt

Call-out fee for Rendsburg and surrounding area from €39

Up to 20 kilometres from our workshop, charged once per call-out.

Arbeitszeit

Hourly rate on weekdays 7am to 5pm from €79

Billed in 15-minute increments after the first hour started.
Call-out in the evening, on weekends and public holidays 50% surcharge

Surcharge on the hourly rate, communicated when the appointment is booked.

Leistungen

Fault-finding in the distribution board and final circuits time and materials

Measurement-based localisation of a short circuit, earth fault or insulation fault.
Materials from the vehicle stock per price list

Circuit breakers, RCDs, terminals and cables, charged as used.
Test report after the repair from €45

Measured values and documentation, available as a PDF for your property management on request.

Rented flat or managed property

If you're renting, your landlord is generally the client. Just give us the property management company's details over the phone, and we'll invoice them directly — no need for you to pay upfront.

Questions

Frequently asked questions about emergency call-outs

These are the questions callers ask us most often when the power suddenly goes out.