Homeowners & tenants / Electrical answers
Home electrical questions, answered
Common questions people ask online, with misleading answers set beside the safer, evidence-based answer.
Guidance for homes in England. Never investigate exposed wiring or a burning smell yourself; if there is immediate danger, isolate the supply only if safe to do so and seek urgent help.
01 / Homeowners & tenants
Does an older fuse board mean my whole house needs rewiring?
Incorrect
An older board automatically means every cable has failed and the house must be rewired.
Correct
Age alone is not a diagnosis. A competent electrician should inspect and test the installation, assess its condition and explain any actual hazards. A board replacement or rewire may be justified, but neither follows automatically from its age.
02 / Homeowners & tenants
How often should I have my home electrics checked?
Incorrect
Owner-occupiers never need an electrical inspection unless they are selling.
Correct
Electrical Safety First recommends inspection and testing every 10 years for an owner-occupied home, and also when buying a previously occupied property. Your electrician may recommend a shorter interval based on condition or use. This recommendation is not a blanket legal 10-year requirement for owner-occupiers.
03 / Homeowners & tenants
Will an EICR make me upgrade everything to the newest edition?
Incorrect
Any older feature that differs from today's Wiring Regulations must be replaced immediately.
Correct
Not necessarily. An EICR assesses whether an existing installation is safe for continued use. A departure from today's standard does not automatically mean danger or require an entire upgrade; the inspector should explain each observation and its assigned code.
04 / Homeowners & tenants
Can I connect two extension leads if the plugs fit?
Incorrect
Extra sockets mean extra power, so daisy-chaining leads is fine.
Correct
No. Plugging one extension lead into another can overheat the wall plug or socket. Check the lead's rating and the combined appliance load; a cable reel may need to be fully unwound to carry its marked full load.
05 / Homeowners & tenants
Does an RCD protect me against every electrical fault?
Incorrect
If my board has an RCD, hot sockets, damaged leads and repeated trips can be ignored.
Correct
No. An RCD helps protect against electric shock from certain faults, but it is not a substitute for sound wiring or safe use. Hot or scorched sockets, buzzing, burning smells and unexplained trips need attention; stop using the affected equipment and seek professional advice.
06 / Homeowners & tenants
Can anyone fit a new circuit without telling building control?
Incorrect
If the electrician is experienced, a new circuit never needs a building-control notification.
Correct
In England, installing a new circuit and replacing a consumer unit are notifiable work under Part P. A registered competent-person installer can self-certify eligible work; otherwise an appropriate building-control route is needed. Notifiable does not mean that only one type of electrician can do the job.