A power cut at a Guildford property can have several distinct causes, and identifying whether the loss of supply is confined to your property or affects the wider street is the important first step. A total loss of power where neighbouring properties are unaffected usually points to a fault within your own installation: a tripped main fuse, an overloaded or faulty circuit causing an RCD or MCB to operate, or a problem with the service cable between the street and your meter.
A widespread outage affecting multiple properties is a network fault handled by your Distribution Network Operator (DNO). For properties in the Guildford area, the DNO is typically UK Power Networks, which operates a fault reporting line and publishes a live network fault map online.
Before calling an electrician, check your consumer unit for tripped breakers or RCDs that have moved to a tripped or intermediate position. If a breaker trips again immediately after being reset, do not attempt to reset it a second time — this indicates an underlying fault that requires professional fault finding, not repeated resetting.
In properties with older fuse boards using rewirable wire fuses, a blown fuse element is a common cause of partial power loss. Replacing a fuse element is not complex for a qualified electrician, but identifying why it failed is equally important.
Where the power cut is caused by a faulty appliance rather than the wiring itself, unplugging the appliance before attempting to reset the protective device will usually restore the circuit. Do not attempt to bypass or tape over any protective device.