Typical cost in 2025
Most homeowners pay around £5,000 for a 3-bedroom semi-detached house, full rewire
What affects the price?
Property size
A 1-bed flat may cost £2,500–£4,000. A 3-bed house typically runs £4,000–£7,000. A 5-bed detached can reach £10,000+. Each room adds approximately £1,000–£1,500.
Age of property
Older properties (pre-1960s) may have rubber-insulated cables that are brittle and harder to remove. This adds time and cost compared to modern PVC-insulated wiring.
Consumer unit upgrade
Most rewires include a new consumer unit (fuse board). Upgrading to a modern unit with RCD protection adds £500–£800 to the job.
Number of circuits
More sockets, lighting points, and dedicated circuits (cooker, shower, EV charger) mean more materials and labour time, increasing overall cost.
EICR certificate
An Electrical Installation Condition Report is typically included at completion. This is the official sign-off document and costs £150–£300 if done separately.
Typical cost breakdown
Estimates are based on UK average rates in 2025. Prices in London and the South East are typically 20–30% higher.
Frequently asked questions
Do I need to move out during a rewire?
Not always, but it's strongly advised. Electricians need access to all rooms and power will be off for most of the working day. Living on site is disruptive and can slow progress.
How do I know if I need a rewire?
Key signs include: old-style round pin sockets, black rubber wiring, a fuse board with rewirable fuses, regular tripping, or a property that hasn't been rewired in 25+ years.
Does a rewire need building regulations approval?
Yes — electrical work in the home is notifiable under Part P of the Building Regulations. A registered electrician will self-certify the work and issue a certificate.
How long does a house rewire take?
A 3-bed house typically takes 5–7 days. A 5-bed house can take up to 2 weeks. The timeline depends on ease of access to joists and whether chasing is needed.
Will my walls need re-plastering after a rewire?
Some making good is expected. Cables in solid walls require chasing, which needs patching and redecorating. Ask your electrician what's included in their quote.