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Light Switch Repair in Warsaw — We Find and Fix the Cause

Warszawa · 16.02.2026 · ≈ 4 min read

The light turns on only every second press, the rocker feels loose, you hear crackling, or there is a click but nothing happens. That does not always mean the switch has to be replaced. In many cases, tightening a contact, changing the rocker spring, or fastening the mechanism properly in the back box is enough. In flats in Ochota and Praga Polnoc we often come across old switches that still work fine — they just need the contact group cleaned up and adjusted.

Repair cost

The cost comes down to how serious the fault is. Tightening contacts and securing the mechanism takes little time and costs less. Replacing the contact group or repairing cables is a bit more expensive. If the mechanism is beyond saving, full replacement works out cheaper. All electrical service prices are listed in the table.

Service min max
Light switch installation 50 zł/szt 90 zł/szt
Light switch replacement 60 zł/szt 60 zł/szt
Light switch repair 60 zł/szt 120 zł/szt
Electrical socket installation 80 zł/szt 120 zł/szt
Electrical socket replacement 50 zł/szt 80 zł/szt
Electrical socket repair 60 zł/szt 100 zł/szt
Electrical point installation 120 zł/pkt 180 zł/pkt
Wall chasing for wiring 40 zł/mb 70 zł/mb
Electrical wiring installation 15 zł/mb 30 zł/mb
Junction box wiring connection 40 zł/szt 80 zł/szt
Lighting installation (lamp, chandelier) 80 zł/szt 150 zł/szt
Lighting replacement 150 zł/szt 150 zł/szt
Lighting repair 120 zł 250 zł
LED strip installation 60 zł/mb 90 zł/mb
LED transformer installation 150 zł/szt 220 zł/szt
Light bulb / halogen replacement 30 zł/szt 50 zł/szt
Power socket installation 230/400 V 120 zł/szt 220 zł/szt

What can be repaired

How the repair works

  1. We switch off the circuit at the board and check it with an indicator.
  2. Take off the rocker and frame, then pull out the mechanism.
  3. Check the contacts, cables, springs and back box.
  4. Repair the fault: tighten terminals, clean contacts, replace the spring or extend the cables.
  5. Fix the mechanism firmly in the back box, then put the frame and rocker back.
  6. Turn the circuit back on and test everything.

When repair is pointless

Warning: repairing a switch is electrical work. Even when the circuit is isolated, always check that there is no voltage with an indicator. If you are not sure, call a professional.

What to prepare

A real case from Warsaw

A client in Ochota called us because a bedroom switch had stopped switching the light on, although the bulb was fine. We took the switch out and found the cable in the terminal was hanging on by one strand; the rest had oxidised and broken away. We stripped the cable and crimped the contact again. We also saw that the mechanism was fixed by just one lug — the second one had snapped. We fastened it straight into the back box. The switch now works like new, and there was no need to replace it (compatible with Legrand, Schneider Electric, ABB and similar).

Frequently asked questions

Why does the light flicker when I switch it on?

The most likely cause is a bad contact inside the switch. The cable is not tightened properly or the contact plate has oxidised. Repair fixes the issue.

The switch crackles — is that dangerous?

Yes. Crackling means there is an electric arc between the contacts. With time, the contact burns out completely, and overheating can happen. It needs urgent repair or replacement.

The rocker sticks — can it be fixed?

If the spring is still intact, adjusting the mechanism may be enough. If the spring has broken, sometimes it can be changed; in other cases, installing a new switch is easier.

How long does a repair take?

Tightening contacts — 10–15 minutes. If cables have to be extended or the back box needs replacing — up to 40 minutes.

Can the technician decide on the spot — repair or replace?

Yes. Once the cover is removed, the condition of the mechanism and contacts can be seen straight away. The decision is made on the spot.

Book a switch repair

We repair switches all over Warsaw: tighten contacts, clean terminals, replace springs and secure loose mechanisms. If fixing it makes no sense, we will recommend a replacement. Get in touch — we will come over and deal with it.

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