When to Hire a Domestic Electrician | Electrical Services
                     Domestic Electrician Services: When 
Rewiring a House Is the Right Choice
You flick the kitchen light switch and it flickers before settling. Ten minutes later the circuit 
breaker trips while the kettle and toaster are running at the same time. On their own, these 
things look like small annoyances. Together, over months or years, they're often the first signs 
that a property's electrical system has reached the end of its working life.
For homeowners, landlords, buyers, and renovators, the question that follows is rarely simple: 
is this a quick fix, or does the house actually need rewiring? Getting that answer wrong, either 
by ignoring genuine warning signs or by panicking over a minor fault, can be costly. This guide 
walks through how to tell the difference, what a rewire actually involves, and how to make the 
decision with confidence.
Why Safe Electrical Systems Matter
Electrical wiring isn't something you install once and forget about. Cables degrade, insulation 
perishes, and standards move on. A wiring system that was perfectly compliant in 1985 is not 
automatically safe or adequate for how a household uses electricity today.
There are four reasons this matters beyond simple convenience:
 Family safety. Faulty wiring is one of the leading causes of house fires in the UK. 
Damaged insulation, overloaded circuits, and old connections all increase risk.
 Modern electrical demand. Homes now run far more appliances simultaneously than 
older wiring was designed for, from induction hobs to multiple chargers and home office 
equipment.
 Regulatory compliance. Current wiring regulations (BS 7671) set standards that older 
installations often fall short of, particularly around earthing, circuit protection, and 
socket provision.
 Property value. Buyers and mortgage lenders increasingly ask for an Electrical 
Installation Condition Report (EICR) before completing a purchase, and unresolved 
wiring issues can hold up a sale.
What Does a Domestic Electrician Do?
A domestic electrician handles the electrical work inside and around a home, distinct from the 
industrial or commercial side of the trade. Domestic electrician services typically cover:
 Electrical inspections and EICR testing
 Full and partial house rewires
 Consumer unit (fuse board) replacement
 Lighting installation, including outdoor and garden lighting
 Additional sockets and circuits
 Fault finding and diagnosis
 EV charger pre-wiring and installation
 General electrical upgrades tied to renovations or extensions
Some of this work is reactive, called out to fix a fault. Some of it is preventative, an inspection 
that catches a problem before it becomes dangerous. Both matter, and a good electrician will 
usually recommend the preventative route once they see a property's age and history.
Do You Need to Rewire Your House?
Rewiring a house isn't something to do on a whim, and it isn't cheap, so it's worth 
understanding exactly when it becomes the sensible option rather than an unnecessary 
expense. Rewiring is usually the right choice when:
 The property is over 30 to 40 years old and hasn't been rewired since
 The wiring uses old rubber or fabric insulation, or aluminium conductors, rather than 
modern PVC
 Faults keep recurring despite repairs
 There aren't enough sockets for how the home is actually used
 A major renovation or extension is planned that will disturb existing circuits
 An EICR has come back with C1 or C2 (dangerous or potentially dangerous) findings
Not every older home needs a full rewire. Some just need a consumer unit upgrade or 
additional circuits. But the only way to know for certain is a proper assessment, which is why an 
inspection should always come before assumptions.
8 Signs Your Home May Need Rewiring
1. Frequently Tripping Circuit Breakers
Occasional trips happen. Frequent ones, especially without an obvious cause like a faulty 
appliance, usually point to overloaded or deteriorating circuits.
2. Flickering or Dimming Lights
If lights flicker independently of a dimmer switch, particularly when other appliances switch on, 
it can indicate loose connections or an overstretched supply.
3. Burning Smells or Discoloured Sockets
Any scorch marks, discolouration, or burning smell around a socket or switch is a stop-and-call-
an-electrician situation, not a wait-and-see one.
4. Old Fuse Board Instead of a Modern Consumer Unit
Older fuse boards, particularly ones with wooden backing or rewireable fuses, lack the circuit 
protection that modern consumer units provide as standard.
5. Cracked, Worn or Ageing Wiring
Where wiring is visible, in a loft or under floorboards, cracked or brittle-looking insulation is a 
clear sign the cabling has aged beyond safe use.
6. Not Enough Power Points for Modern Living
Relying on multiple extension leads and adaptors across a room usually means the circuit 
wasn't designed for current demand, and it increases fire risk.
7. Electric Shocks When Using Appliances
Even a mild tingle when touching an appliance or switch should be treated seriously. It often 
points to an earthing fault.
8. Your Property Has Never Had an Electrical Inspection
If there's no record of an EICR, particularly in a home bought several owners back, that alone is 
reason enough to book one.
Any of these signs on their own warrants a call to a qualified electrician. Several together 
strengthen the case for a full assessment.
What Happens During a House Rewire?
A rewire follows a fairly consistent sequence, regardless of property size:
1. Initial inspection. The electrician surveys existing wiring, the consumer unit, and how 
the property is used.
2. Planning the layout. Circuits, socket positions, and lighting points are mapped out, often 
improved from the original layout to suit modern needs.
3. Removing old wiring. Old cabling is stripped out, which usually involves lifting 
floorboards and accessing wall cavities.
4. Installing new cables. New PVC-insulated cabling is run to the planned layout.
5. Fitting sockets and switches. Outlets, switches, and light fittings are connected and 
secured.
6. Consumer unit installation. A new consumer unit is fitted with appropriate circuit 
breakers and RCD protection.
7. Testing and certification. Every circuit is tested against BS 7671 requirements before 
being signed off.
8. Final inspection. A completion certificate is issued, confirming the work meets current 
regulations.
Partial Rewire or Full Rewire?
Partial rewiring replaces specific circuits or sections, such as one floor, a kitchen extension, or a 
single problematic circuit. It suits homes where most of the wiring is sound but one area has 
been identified as faulty or added later without proper integration.
Full rewiring replaces the entire electrical system from the consumer unit outward. It's the 
right choice when the wiring throughout the property is uniformly old, when an EICR flags 
widespread issues, or when a renovation touches most of the house anyway.
Partial rewires are cheaper and less disruptive, but they don't solve problems elsewhere in the 
property. A full rewire costs more upfront but resets the entire system to current standards, 
which matters if you're planning to stay in the property long-term.
Common Concerns About Rewiring
Will I need to move out? For a full rewire, many homeowners choose to move out temporarily, 
since large sections of flooring and walls will be disturbed. Some electricians can work room by 
room to allow residents to stay, though it extends the timeline.
How disruptive is the work? Expect dust, noise, and some redecoration afterwards, particularly 
where cables are chased into walls rather than run under floors.
How long will it take? A typical three-bedroom house takes around 5 to 10 working days for a 
full rewire, depending on size and access.
Is rewiring expensive? Rewiring costs in the UK typically range from £3,000 to £10,000+, 
depending on property size, access, and specification.
Will walls need repairing afterwards? Yes, minor plastering is usually needed where cables 
have been chased in. Most electricians either handle this or can recommend someone who 
does.
Why Professional Domestic Electrician Services Matter
Rewiring involves working with live systems inside occupied buildings, and getting it wrong has 
real consequences. Choosing a professional matters for several reasons:
 NICEIC accreditation confirms the electrician's work is independently assessed against 
current standards.
 Regulatory compliance ensures the finished installation meets BS 7671 and Building 
Regulations Part P.
 Testing and certification provide documented proof the work is safe, which matters for 
insurance and future property sales.
 Insurance requirements often specify that electrical work must be carried out by a 
qualified professional to remain valid.
A firm like East Sussex Electrical, working across Brighton, Hove, and the wider Sussex area, will 
carry out a proper inspection before recommending any rewiring work, rather than assuming 
the worst from a single call-out.
Tips to Keep Your Home Electrically Safe
 Book an EICR inspection every 10 years for owner-occupied homes, or every 5 years for 
rented properties
 Avoid running multiple high-draw appliances from one extension lead
 Replace any damaged sockets or switches immediately rather than working around 
them
 Upgrade an old fuse board to a modern consumer unit with RCD protection
 Don't ignore recurring trips or flickering, even if they seem minor
 Always use a qualified, NICEIC-registered electrician for wiring work
Frequently Asked Questions
How often should a home's wiring be inspected?
Every 10 years for owner-occupied homes, or every 5 years for rental properties, unless a 
specific issue prompts an earlier check.
Can I rewire just part of my house?
Yes. Partial rewiring is common and suits homes where only certain circuits or areas show 
problems, rather than the whole system.
How long does rewiring a house usually take?
Most three-bedroom homes take 5 to 10 working days for a full rewire, though this varies with 
size and access.
Does every old property need rewiring?
No. Age alone doesn't automatically mean a rewire is needed. An inspection determines 
whether the existing wiring is still safe and adequate.
What are the benefits of modern electrical wiring?
Better fire safety, more reliable power for modern appliances, compliance with current 
regulations, and improved property value.
Is rewiring worth it before selling a home?
It can be. Outdated wiring can slow down a sale or affect a buyer's mortgage approval, so 
addressing it beforehand often smooths the process.
Conclusion
Not sure if your property needs rewiring? A professional EICR inspection will identify any risks 
and help you avoid unnecessary costs. Contact a qualified domestic electrician to get a clear, 
expert assessment.
Flickering lights and tripping breakers rarely fix themselves, and waiting until a fault becomes 
dangerous is the expensive way to find out a property needed rewiring. Recognising the early 
warning signs, understanding whether a partial or full rewire fits your situation, and bringing in 
a qualified domestic electrician for an honest assessment puts you back in control of the 
decision rather than reacting to an emergency.
If any of the signs above sound familiar, arranging a professional inspection is the sensible next 
step before a minor issue turns into a major one.