How to Check the Lighting System When Buying a New Home? 2026 Guide
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When buying a new home, checking the lighting installation is very important. Problems that arise later can lead to serious costs.
Checklist: Lighting When Buying a Home
Check Point
What to Check?
Ideal Value
Fuse box
Is it an automatic fuse, is there an RCD?
MCB + RCD
Grounding
Are there 3-pin sockets?
Yes, in all sockets
Cable age
Is the cable insulation sound?
Under 10 years old
Bathroom fixture
Is the IP rating appropriate?
IP44 minimum
Outdoor area
Are there IP65+ fixtures?
IP65 minimum
Dimmer line
Is there a dimmer in the living room and bedroom?
Advantage if present
Signs of Old Wiring
⚠️ 2-pin sockets — no grounding
⚠️ Yellow, brittle cable insulation
⚠️ Fuses blow frequently
⚠️ No residual current device (RCD)
⚠️ Sockets feel warm to the touch
Solving Old Wiring Issues with LED Transition
LED lighting draws very low current. Even old wiring is much less strained with LEDs. Make the LED transition before immediately renovating the wiring.
❓ Frequently Asked Questions
Can LEDs be used in an old building?
Yes! LEDs draw very low current, so even old wiring works fine with LEDs.
Can LEDs be used without grounding?
LEDs with plastic bodies can be used. Grounding is essential for fixtures with metal bodies.
Is an electrician's inspection essential when buying a house?
Absolutely recommended. Hidden wiring problems can be very costly later on.
What to do in a house without a residual current device (RCD)?
Immediately have an electrician install a residual current device (RCD). It is the most important protection against electric shock.
