Lock Change & Replacement

A lock change becomes necessary in more situations than most people realise. The most common trigger is moving into a new home — whether that is a period property near Newnham, a modern flat on the Eddington development, or a mid-terrace on Arbury Road — because there is simply no way to know how many copies of the original keys are in circulation. Other common reasons include a relationship breakdown, a burglary or attempted break-in, a lost or stolen key, the end of a tenancy, or a lock that has become stiff, damaged, or compromised by an attempted snap attack. In each of these cases, changing the cylinder or the entire lock mechanism is the cleanest and most secure solution — it closes off access for anyone who should no longer have it, without relying on locks and bolts that may already be weakened.

It is worth understanding what 'changing a lock' actually involves in a typical Cambridge home. Most front doors have one of two set-ups: an older timber door with a Yale-type nightlatch on the upper half and a 5-lever mortice deadlock lower down, or a more modern uPVC or composite door fitted with a multipoint locking system operated by a single handle, secured by a euro cylinder. Each type requires a different approach. On timber doors we can swap the nightlatch rim cylinder or replace the mortice lock body. On uPVC and composite doors, the euro cylinder is the key working part — it can be replaced in a matter of minutes without touching the rest of the door furniture. Back doors, patio doors, and French doors fitted to Cambridge flats and houses are almost always uPVC multipoint locks and are handled the same way.

The question of who arranges and pays for a lock change depends on the circumstances. When a tenancy ends and new occupants are moving in, most letting agents and landlords in Cambridge now treat a lock change as routine end-of-tenancy practice, in the same way that cleaning and an inventory check are standard. We work regularly with managing agents and private landlords across CB1, CB2, CB3, CB4, and CB5 postcode districts, and can coordinate access directly with outgoing or incoming tenants when needed. For landlords with multiple properties, we keep a record of lock types fitted so that re-attending is straightforward if a future cylinder change is required.

Tenants also have a legitimate interest in lock security. If you have moved into a new flat and your landlord has not yet arranged a lock change, it is entirely reasonable to raise this in writing — your letting agent or landlord has a duty to ensure the property is secure. If you are in an emergency situation — for example, you have been locked out in the evening or at a weekend — call us on 01223 912859. We send a technician straight away and are usually with you in around 30 minutes. We will verify your identity and right of access before carrying out any work, which is standard practice and protects everyone involved. For situations involving communal entrances in a block of flats, we liaise with whoever manages the building to ensure the correct authorisation is in place before changing shared locks.

Commercial premises in Cambridge — from independent shops near the Grafton to offices on the Science Park and workshop units at Cowley Road Industrial Estate — have their own requirements. A commercial lock change often involves higher-security deadlocks, overnight security bolts, or coordinating a master key system so that different staff members carry different levels of access. We handle all of these; call us to discuss what your premises needs and we will advise on the most practical solution before quoting.

Cambridge is a city that never entirely stops — students, researchers, hospital shift workers, and residents returning late from the train station at Hills Road all occasionally find themselves needing help outside of standard business hours. Our emergency lock change service operates around the clock, every day of the year, including bank holidays. Whether you have just had a break-in attempt, discovered your lock has been tampered with, or simply need a cylinder changed before you leave for a conference the following morning, we are reachable at any hour on 01223 912859.

It is worth having a plan before an emergency happens. Keep a note of our number in your phone. If you are a landlord or letting agent managing a portfolio of Cambridge properties, consider saving it as a business contact — we are frequently the first call managing agents make when a lock issue arises at short notice. We do not operate from a fixed premises; being fully mobile means we respond from wherever in the Cambridge area we are currently working, which typically keeps journey times short across the city and into surrounding villages such as Histon, Impington, Cherry Hinton, and Fulbourn.