Rewiring Cost UK – 2026 Price Guide

A full rewire of a typical 3-bed semi in the UK costs £3,800–£6,500 in 2026, including materials, labour, testing, Part P certification and the Electrical Installation Certificate. This assumes 8-10 circuits, standard chasing, RCBO consumer unit and a 5-10 day on-site schedule. Older properties (pre-1960) with plaster/lath walls typically add 10-20%.

Signs you may need a rewire: round pin sockets or old cloth/rubber cabling (pre-1970s), no RCD protection in the fuse box, flickering lights or tripping RCDs, burn marks near sockets/switches, or the last rewire was more than 25-30 years ago. The only definitive answer comes from an EICR — a periodic inspection by a qualified electrician (£150-£300) that categorises faults as C1/C2/C3 and tells you what needs urgent attention.

Yes — rewires are Notifiable Work under Part P of the Building Regulations (England and Wales). You have two options: (1) use an electrician registered with a Competent Person Scheme (NICEIC, NAPIT, ELECSA, ECA) who self-certifies the work and sends you a Building Regs Compliance Certificate, or (2) submit a Building Notice to your local authority before work starts (adds £150-£400 in fees). Option 1 is quicker and cheaper — and 95% of UK rewires are done this way.

Usually no, but it's very disruptive. Expect the power off for 6-10 hours each day, walls chased (dust everywhere), flooring lifted in some rooms, and one room/floor done at a time. Some homeowners stay in a spare room as it rotates; others move out for the week. Small children, shift workers or anyone who works from home often find it easier to stay elsewhere for 3-4 days. Budget for redecoration afterwards — a rewire isn't 'making good' in most quotes.

Not automatically — but it's the perfect time to add one. A 7kW EV charger costs £800-£1,400 fully installed, but added during a rewire it's often £600-£1,000 because the electrician is already running cable, doing Part P paperwork and has scaffolding access if needed. If your existing consumer unit is old, upgrading it at the same time avoids duplicating the work later. The OZEV grant ended in March 2022 — there are no UK-wide grants for home EV chargers in 2026.

Typical timelines: 1-bed flat 3-5 days, 2-bed flat/terrace 4-7 days, 3-bed semi 5-10 days, 4-bed detached 7-12 days. The variance within each size depends on plaster vs plasterboard walls (chasing is faster in plasterboard), how much furniture needs moving, access to roof void for lighting circuits, and whether you need additional circuits (e.g. EV charger, extra sockets). Always add 1-2 days to the electrician's estimate — testing and certification usually takes longer than expected.

Quality of consumer unit (basic RCBO board vs premium surge-protected), number of additional circuits included (is the EV charger circuit in? outbuilding supply?), whether Part P certification is itemised or included, number of sockets and switches specified, fittings (basic white plastic vs chrome/brushed steel), and whether the electrician is Competent Person Scheme registered or not (unregistered electricians are cheaper but you bear the Building Notice fee and risk). Always insist on 3 itemised quotes and verify NICEIC/NAPIT registration on their public directories.