Short answer: most UK homeowners pay between £2,000 and £10,000 for a full rewire in 2025. The exact price depends on property size, access, scope of work, region, and compliance requirements.
Why Home Rewiring Matters
Old or faulty wiring can lead to power cuts, electric shocks, or even electrical fires. Many homes still rely on systems that don’t meet current BS 7671 wiring regulations. A full house rewire replaces outdated cables, sockets, and the consumer unit (fuse box) with modern components protected by RCD circuit breakers.
Rewiring improves safety, supports modern appliances, and can increase property value. Work must comply with Part P building regulations and be signed off by certified electricians (e.g., NICEIC or NAPIT).
Factors That Affect the Cost of Rewiring
1) Size and Type of Property
Larger homes need more cabling and circuits. A one-bed flat may need around £2,000–£4,000 of work, while a four-bed detached house can exceed £7,000. Older properties with solid walls or historic features take longer and require more careful routing of the wiring system.
2) Scope of Work
A full rewire covers all circuits, sockets, light fittings, and a new consumer unit. A partial rewire (e.g., kitchen/extension) costs less but may not address every issue. Ask your electrician whether a full or partial rewire is appropriate.
3) Access and Layout
Homes with suspended floors and accessible lofts are faster and cheaper to rewire than properties with concrete floors or restricted access. Complex layouts, extra storeys, or high ceilings increase labour time and cost.
4) Location and Labour Rates
Prices vary by region. London and the South East typically cost more than the North West or Scotland. Compare at least three local tradespeople and check what’s included—especially testing, certification, waste disposal, and clean-up.
5) Compliance and Certification
Rewires must meet safety compliance requirements. On completion, you should receive an Electrical Installation Certificate confirming compliance with BS 7671 (you may also be provided with an EICR for records). These documents support insurers and mortgage lenders.
Typical Rewire Costs in 2025
| Property Type | Average Cost Range | Duration |
|---|---|---|
| 1–2 bed flat / terrace | £2,000 – £4,000 | 3 – 5 days |
| 3 bed semi-detached | £4,000 – £6,000 | 5 – 7 days |
| 4 bed + detached | £6,000 – £10,000+ | 7 – 10 days |
These prices usually include materials, labour, testing & certification, and waste disposal. Costs rise if you add extras such as USB sockets, smart home wiring, or external lighting installations.
Additional Costs to Budget For
- Consumer unit upgrade: £300 – £600 installed, with full RCD protection.
- Plastering and decorating: £500 – £1,500 depending on wall repair.
- Extra sockets or lighting: £50 – £100 per point.
- Testing & certification: often included; if independent, allow £100 – £200.
If you plan to integrate smart home systems or energy-efficient appliances, discuss this before work starts. It’s cheaper to wire for future smart features during the rewire than retrofit later.
How to Get the Best Price
- Get several quotes from NICEIC- or NAPIT-registered electricians.
- Ask for a cost breakdown covering materials, labour, and certification.
- Check reviews and confirm compliance with British Standards and Part P.
- Plan ahead: pair rewiring with renovations to reduce disruption.
- Request completion documents: Electrical Installation Certificate (and EICR if provided).
Partial vs Full Rewire
A partial rewire can cost £1,000 – £3,000 depending on scope. It’s useful for extensions or replacing dangerous circuits. If your wiring is 25+ years old or you notice flickering lights, frequent fuse trips, or evident faulty wiring, a full rewire is safer and more economical long-term.
FAQs
How often should a house be rewired in the UK?
Typically every 25–30 years, or sooner if an EICR identifies faults.
Does a rewire include the fuse box?
Yes. Most rewires replace the fuse box with a modern consumer unit containing RCD circuit breakers.
Will rewiring increase my home’s value?
Yes. Modern electrical systems boost safety and appeal to property buyers, which can support sale price and insurance acceptance.
Do I need permission for a rewire?
All work must comply with Part P building regulations. Your electrician handles notification to the local authority.
Next Steps
Rewiring is a major investment, but it improves safety, reliability, and efficiency. In 2025, expect to pay between £2,000 and £10,000 depending on your property and region.
Serving Atherton, Tyldesley, Wigan, Leigh & Greater Manchester. For compliant, high-quality workmanship, speak to W J Electrical & Security Ltd. Our certified electricians deliver fully tested installations that meet BS 7671.
Thinking about rewiring your home? Get a free, no-obligation quote from our NICEIC-approved team.