How much is a replacement car key in London?

Spare keys £120–£220, lost-key replacement £180–£380, all-keys-lost £250–£550. Prestige (BMW, Mercedes, JLR, Porsche) £400–£950. Always fixed price quoted on the phone.

Do you come to me anywhere in London?

Yes — fully mobile across every London borough, plus Heathrow, Slough, Watford and out to Staines. Driveway, workplace, hotel, multi-storey car park — we attend.

How long does it take?

Most volume-brand keys cut and programmed in 45–90 minutes on your driveway. Prestige (BMW FEM/BDC, Mercedes FBS4, JLR RFA) 90–150 minutes.

Same key as the dealer?

Yes — OEM-spec transponder, OEM-spec blade, programmed to your car's immobiliser at the same security level. Just 40–70% cheaper and same-day instead of a 1–2 week dealer wait.

Can I get a key the same day?

Yes — same-day for every major brand, 7 days a week. Most London bookings attended within 4 hours of the call.

Same-day · All London boroughs · OEM-spec keys ///

Car Key Replacement London. From £120.

Mobile car key replacement across every London borough — spare keys, lost-key replacement, all-keys-lost. Same OEM key as the dealer, 40–70% cheaper, same day.

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30-min response

West London

Fully insured

Public & PI

Non-destructive

Industry standard

Dealer-level kit

AutoTuner · Autel

Fixed quotes

Before we attend

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Fixed price confirmed before we attend · No-damage entry · Dealer-grade key programming

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Car key replacement London — mobile same-day service

Professional. Mobile. Trusted.

StageMyCar replaces car keys on your driveway anywhere in London — every borough, every major manufacturer, same OEM-spec transponder as the main dealer. Spare keys from £120, lost-key replacement from £180, all-keys-lost from £250. We carry BMW CAS/FEM/BDC, Mercedes FBS3/FBS4, Audi/VW MQB48, JLR RFA, Ford HU101 PATS, Vauxhall, Toyota, Nissan, Land Rover, Peugeot, Citroen and prestige (Porsche, Bentley, Range Rover RFA) blanks and coding equipment in every van. Most jobs completed in 45–150 minutes on your driveway, same day, 7 days a week. No tow, no 2-week dealer wait, no main-dealer markup — and every key carries a 12-month parts & labour warranty.

Spare car keys from £120 fixed
Lost-key replacement from £180 fixed
All-keys-lost from £250 fixed
Prestige (BMW/Mercedes/JLR/Porsche) £400–£950
OEM-spec — same key, same security as the dealer
Same-day across every London borough
Mobile — driveway, workplace, car park
Up to 70% less than main dealer pricing
12-month warranty · fully insured · ★ 5.0 (36)

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Payment Assist · Official Partner

Spread the Cost with Payment Assist

On selected services over £250, you can split the total into 3 or 4 monthly payments with 0% APR available. A small deposit is paid on the day, then the remaining balance is collected in equal monthly instalments. No long forms, no waiting — applied on site before work begins.

0% APR available on selected services
3 or 4 equal monthly payments
Deposit paid on the day
Soft credit check — no impact at quote stage
Decision in minutes, on site
Available on jobs over £250

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Finance subject to status and approval and provided by Payment Assist Ltd, authorised and regulated by the Financial Conduct Authority. 0% APR available on selected services. Terms, eligibility and final monthly figure confirmed at application. StageMyCar UK is an introducer appointed representative — we do not charge a fee for this service.

Example · Illustrative

£480 ECU Remap · 0% APR

3 payments

£120/mo

£120 deposit

4 payments

£96/mo

£96 deposit

Authorised & regulated by the FCA

Decision in minutes — apply on site

Subject to status & approval

Indicative example only. Final terms confirmed at application.

★ 5.0 / 5 · 36 Google reviews

Trusted by drivers across West London

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Locked out at 11pm near Heathrow. They were with me in 25 minutes, no damage, cheaper than the dealer quoted. Genuine lifesavers.

James M.

Hounslow · Emergency Unlock

Lost my BMW key on holiday. New key cut and programmed on my driveway same day. Saved me £400 vs main dealer.

Priya S.

Uxbridge · Lost Key Replacement

Stage 1 remap on my Audi A4 — gains were exactly as promised, smoother throttle, better MPG on the motorway. Highly recommend.

Mark T.

Slough · Stage 1 Remap

DPF light came on, dealer wanted £1,800. StageMyCar sorted it mobile on my drive for a fraction. Car runs perfectly now.

Sarah K.

Wembley · DPF Service

Spare key for my Mercedes — fast, fair price, fully programmed. Professional from the first WhatsApp.

Daniel R.

Harrow · Spare Key

Van wouldn't start, immobiliser fault. Diagnosed and fixed roadside in under an hour. Saved my workday.

Aisha N.

Hayes · Mobile Diagnostics

Booked an ECU remap for my Golf R. Honest pre-flash data, custom map, brilliant after-care. Won't go anywhere else.

Tom P.

Richmond · Custom Remap

Broken key extraction at 6am before a meeting. Out in 15 minutes, replacement cut on the spot. Top service.

Lewis B.

Reading · Broken Key

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StageMyCar UK is a mobile auto locksmith and ECU specialist serving West London, the M4 corridor, Heathrow, Slough, Reading and surrounding areas. Fixed-price quotes, DBS-checked engineers, fully insured, 7 days a week. Call 07312 826380 for an instant quote.