Cost of Full House Rewire in Harrow (2026)
Full House Rewire in Harrow works out at £4,200 to £10,800 per property in 2025, give or take. Harrow runs a bit over the UK average, which mostly comes down to Greater London labour rates and what the local housing stock demands. Straight like-for-like jobs hit the lower end; anything that needs pipework or structural changes pushes you up.
Why full house rewire costs more in Harrow
Harrow is a large city of around 251,000 in Greater London. The housing is mostly a mix of Victorian terraces, inter-war semi-detached housing and modern new-build estates. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like HA1, HA2, HA3 tend to be quicker jobs with standardised fittings. Local trade prices sit on the expensive side for UK trade work. That's mostly wage levels plus the cost of running a van and a yard in and around Greater London.
Pricing for full house rewire here runs about 20% above the UK average, putting Harrow quotes in the £4,200 to £10,800 band per property, with a deep local contractor pool keeping things competitive. London's the deepest trade market in the country, and also the priciest. ULEZ, congestion charge, parking permits, higher van insurance, it all feeds into the day rate. Most decent firms charge a callout and central boroughs run a clear premium over zones 4 and 5. Book two to three weeks ahead if you can.
Most full house rewire work in Harrow runs 5-12 days, costing £4,200 to £10,800 per property; the local rate runs about 20% above the UK average. Anything notifiable (new circuits, consumer unit swaps, bathroom zones, EV chargers) falls under Part P and has to go through an NICEIC, NAPIT or ECA registered electrician. Day rates run £200 in the regions up to about £400 in London. If your sparky can't give you a Building Control certificate at the end of a rewire or CU change, walk away.
Full House Rewire price tiers in Harrow (£4,200 to £10,800)
2-bed flat, standard socket/light counts
3-bed semi with loft, standard outlet count
4-5 bed house with extensions, smart wiring, plaster reinstatement
What affects the price of full house rewire in Harrow?
- Property size and number of sockets/lights
- Whether the property is occupied during works
- Plastering and decoration making-good
- Smart home cabling (CAT6, alarms, CCTV)
- Listed building or solid walls
Harrow runs 20% over the UK average for full house rewire
Harrow sits in the electrical market at a cost multiplier of 1.20× the UK national average. That puts Harrow full house rewire prices at £4,200-£10,800 versus the UK average of £3,500-£9,000 per property.
Full House Rewire cost calculator: Harrow
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What's typically included in a full house rewire quote
- All cabling, back boxes and faceplates
- New consumer unit
- EIC and Part P certification
- Chasing walls and first-fix
- Second-fix and final testing
Frequently asked questions
How much does full house rewire cost in Harrow?
Budget £4,200 to £10,800 per property for full house rewire in Harrow. Prices here are around 20% more expensive than the UK average. What moves a quote inside that range is mostly electrical contractor day rates in Greater London and the specific material list for your job.
How long does full house rewire take in Harrow?
A straightforward full house rewire job in Harrow runs to 5-12 days. You can lose days to things outside the contractor's control: parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.
What's included in the price of full house rewire in Harrow?
A proper full house rewire quote in Harrow should cover: All cabling, back boxes and faceplates; New consumer unit; EIC and Part P certification; Chasing walls and first-fix; Second-fix and final testing. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.
Is full house rewire cheaper in Harrow than the UK average?
Full House Rewire in Harrow runs around 20% more expensive than the UK average. The UK-wide benchmark for this job is £3,500 to £9,000 per property; Harrow quotes tend to land between £4,200 and £10,800. Handy to know what the average actually looks like before you price round.
Do I need planning permission for full house rewire in Harrow?
Most full house rewire jobs don't need planning permission, but Building Regulations and any manufacturer or trade-body sign-off still apply. If the property sits in a conservation area or is listed, ring Greater London Council before you book anything in. It's a free call and saves a world of grief later.
How do I get a fair full house rewire price in Harrow?
Get at least three written, itemised quotes so you can compare like for like, and tell each firm exactly the same brief. A basic full house rewire job in Harrow starts around £4,200, while a complex one can reach £14,400 per property. Quotes near the bottom of that range usually mean a more basic spec, not a better deal, so check what's actually included before you choose on price alone.
See all full house rewire prices across the UK or browse all tradespeople costs in Harrow.
More electrical in Harrow: EV Charger Installation costs, Consumer Unit (Fuse Box) Replacement costs, Electrical Installation Condition Report (EICR) costs, Light Fitting Installation costs.