Cost of Double Socket Installation in Westminster (2026)
Expect to pay somewhere between £100 and £250 for double socket installation in Westminster, per socket. Greater London prices are noticeably above the UK average. Get at least three written quotes before committing — it's a 10 to 15 percent swing in either direction for not much effort.
About double socket installation in Westminster
Westminster is a large city of around 261,000 in Greater London. The housing is mostly South West London housing leans Victorian and Edwardian with pockets of 1930s semis and modern flats. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like SW1, W1, WC2 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.
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.
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.
Double Socket Installation cost breakdown in Westminster
Surface-mount spur next to existing socket
Flush-mounted twin socket with chasing and plaster patch
New ring-main extension across a wall with USB-C sockets
What affects the price of double socket installation in Westminster?
- Surface-mounted vs flush (chased)
- Distance from existing ring main
- USB/smart socket upgrade
- Chasing and making good plaster
Westminster vs the UK average
Westminster sits in the electrical market at a cost multiplier of 1.40× the UK national average. That puts Westminster double socket installation prices at £100–£250 versus the UK average of £70–£180 per socket.
Double Socket Installation cost calculator — Westminster
Estimate based on live 2025 UK trade pricing. Always get 3 written quotes before committing.
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What's typically included in a double socket installation quote
- Supply of faceplate and back box
- Cable run and termination
- Plaster repair (basic)
- Testing and certification
Frequently asked questions
How much does double socket installation cost in Westminster?
Budget £100 to £250 per socket for double socket installation in Westminster. Prices here are around 40% 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 double socket installation take in Westminster?
A straightforward double socket installation job in Westminster runs to 45–90 minutes. 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 double socket installation in Westminster?
A proper double socket installation quote in Westminster should cover: Supply of faceplate and back box; Cable run and termination; Plaster repair (basic); Testing and certification. 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 double socket installation cheaper in Westminster than the UK average?
Double Socket Installation in Westminster runs around 40% more expensive than the UK average. The UK-wide benchmark for this job is £70 to £180 per socket; Westminster quotes tend to land between £100 and £250. Handy to know what the average actually looks like before you price round.
Do I need planning permission for double socket installation in Westminster?
Most double socket installation 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.
See all double socket installation prices across the UK or browse all tradespeople costs in Westminster.