Water and electricity are a dangerous combination. Whether your property has been affected by heavy rain, a leak, flooding, storm damage or water coming through a ceiling, it is important to treat the situation seriously.
Even if your lights, sockets or fuse board appear to be working normally, water may still have affected cables, joints, switches, sockets or electrical connections hidden behind walls, ceilings and floors.
If you think water may have reached your electrics, the safest thing to do is have the installation checked by a qualified electrician.
Why Water In Electrics Is Dangerous
Electrical systems are designed to be dry. When water gets into sockets, switches, light fittings, junction boxes or consumer units, it can cause corrosion, damaged connections, arcing and overheating.
This can increase the risk of:
- electric shock
- tripping circuits
- damaged wiring
- failed electrical connections
- overheating
- electrical fire
- ongoing faults that appear later
The problem is that water damage is not always obvious from the outside. A socket may look dry on the faceplate while moisture remains behind it. A lighting circuit may continue working even though a connection has been affected above the ceiling.
That is why it is important not to assume everything is safe just because the power still works.
What Should You Do First?
If water has entered your electrics, take a cautious approach.
Do not touch wet switches, sockets, plugs, appliances or electrical fittings. Avoid standing water where electrical items or cables may be present.
If it is safe to do so, switch off the affected circuit at the consumer unit. If you are unsure, or if the consumer unit itself may be wet, do not touch it. Call a qualified electrician for advice.
You should contact an electrician urgently if:
- water has reached sockets or switches
- water has come through a ceiling near lights
- your fuse board or consumer unit may have been exposed to water
- your RCD or circuit breaker keeps tripping
- you can smell burning
- sockets, switches or fittings feel warm
- lights are flickering after a leak or storm
- part of the property has lost power
- you are unsure whether the electrics are safe
Electrical problems after water exposure should not be left to chance.
Why Electrics Can Still Be Unsafe Even If They Work
One of the biggest risks after a leak, flood or storm is assuming the electrics are fine because they still turn on.
In reality, water can affect the hidden parts of an electrical installation. It may damage connections, cause corrosion or create faults that only become obvious later. In some cases, the system may appear normal until a circuit starts tripping, a fitting overheats or a fault develops under load.
A qualified electrician can carry out checks and tests to see whether the affected circuits are safe to use. This gives you proper reassurance rather than guesswork.
What Will An Electrician Check?
When an electrician visits a property affected by water, they may check:
- sockets and switches in the affected area
- lighting circuits and ceiling fittings
- junction boxes and cable connections
- the consumer unit or fuse board
- RCDs and circuit breakers
- insulation resistance
- signs of overheating or corrosion
- whether circuits are safe to re-energise
The exact checks will depend on where the water entered, how much water was involved and what parts of the electrical installation may have been affected.
In some cases, the issue may be isolated to one fitting or circuit. In others, more detailed testing may be needed.
Common Causes Of Water-Damaged Electrics
Water can reach electrics in several ways, including:
- roof leaks
- burst pipes
- overflowing baths, sinks or toilets
- leaking boilers or water tanks
- storm damage
- blocked gutters
- flooding
- water entering outdoor sockets or lighting
- damp in older properties
London homes and commercial properties can be especially vulnerable where older wiring, converted flats, ageing roofs or hidden pipework are involved.
Should You Wait For Everything To Dry Out?
No. Drying out is not the same as being safe.
Even if the visible water has gone, electrical parts may still be damaged or contaminated. Corrosion can continue after the water has dried, and some faults may not be visible without testing.
If water has entered electrical fittings, it is best to have them inspected before relying on them again.
When To Call An Emergency Electrician
You should call an emergency electrician if there is any immediate concern about safety.
This includes situations where:
- water is near live electrical fittings
- the fuse board has been affected
- circuits are tripping repeatedly
- there is a burning smell
- sockets or switches are wet
- lights are flickering after water damage
- part of the property has lost power
- you cannot safely switch off the electricity
- the property is a rental, business premises or occupied by vulnerable people
It is much better to get the electrics checked quickly than to wait and hope the problem disappears.
Need Your Electrics Checked After A Leak, Flood Or Storm?
Quantum Electrical provides electrical fault finding, safety checks and emergency electrical services across London.
If your home or business has been affected by water, we can inspect the affected circuits, test the installation and advise you on the safest next steps.
Call 0204 527 9120 to speak to Quantum Electrical and arrange a visit from a qualified electrician.
