Just outside the map?
We sometimes attend immediately-adjacent postcodes (Hampstead, Tufnell Park, Stoke Newington edges) on the same terms. Call us — if we can’t cover it ourselves we’ll point you to a locksmith we trust.
Where we work.
We serve 13 areas across North & Central London and Hertfordshire from a North London base — planned bookings usually within 2–5 working days, and 24/7 emergencies by quote, in every postcode listed below.
North London
Camden
Avocet ABS lock changes across Camden Town, Kentish Town, Primrose Hill and Belsize Park.
NW1 · NW3 · NW5 · N7 · WC1H
Islington
Avocet ABS lock changes across Angel, Highbury, Canonbury, Barnsbury and Holloway.
N1 · N5 · N7 · EC1V · EC1R
Haringey
Avocet ABS lock changes across Crouch End, Muswell Hill, Hornsey, Wood Green and Tottenham.
N4 · N6 · N8 · N10 · N15 · N17 · N22
Barnet
Avocet ABS lock changes across the London Borough of Barnet — High Barnet, Finchley, Hendon, Edgware, Mill Hill and Whetstone.
EN4 · EN5 · N2 · N3 · N11 · N12 · N20 · NW4 · NW7 · NW9 · HA8
Enfield
Avocet ABS lock changes across Enfield Town, Palmers Green, Southgate, Edmonton and Winchmore Hill.
EN1 · EN2 · EN3 · N9 · N13 · N14 · N18 · N21
Hackney
Avocet ABS lock changes across Hackney Central, Stoke Newington, Dalston, Hoxton, Clapton and London Fields.
E5 · E8 · E9 · N1 · N16 · EC2A
Central London
Westminster
Avocet ABS lock changes across the City of Westminster — Marylebone, Mayfair, Pimlico, Soho, Fitzrovia and Bayswater.
SW1 · W1 · W2 · NW1 · NW8 · WC2
City of London
Avocet ABS lock changes across the Square Mile — the Barbican, Smithfield, Aldgate and the EC1–EC4 residential conversions.
EC1 · EC2 · EC3 · EC4
Kensington & Chelsea
Avocet ABS lock changes across Kensington, Chelsea, Notting Hill, Earl's Court and South Kensington.
SW3 · SW5 · SW7 · SW10 · W8 · W10 · W11 · W14
Hertfordshire
Hertsmere
Avocet ABS lock changes across Hertsmere — Potters Bar, Borehamwood, Elstree, Bushey and Radlett.
EN6 · WD6 · WD23 · WD7
Broxbourne
Avocet ABS lock changes across the Borough of Broxbourne — Cheshunt, Waltham Cross, Goffs Oak, Hoddesdon and Broxbourne.
EN7 · EN8 · EN10 · EN11
Welwyn Hatfield
Avocet ABS lock changes across Welwyn Hatfield — Hatfield, Welwyn Garden City, Welwyn, Brookmans Park and Welham Green.
AL6 · AL7 · AL8 · AL9 · AL10
St Albans
Avocet ABS lock changes across the St Albans district — St Albans city, Harpenden, London Colney, Wheathampstead and Park Street.
AL1 · AL2 · AL3 · AL4 · AL5
Book a fitting in two minutes.
£149 flat — cylinder, fitting and three keys. Email us your postcode and door type; we come back within two hours with the slot. No callout fees, no upsells, no negotiation.