Changing the Locks When You Move into a New Home

Most people assume the previous owners handed back every key at completion. In practice, that almost never happens. A spare set may be sitting in a kitchen drawer at a relative's house, hanging on a hook at a former letting agent's office, or tucked away in the pocket of a tradesperson who did work on the property six months ago. None of those people have any ill intent — but the risk exists, and it costs nothing to eliminate it on the day you move in. Your buildings and contents insurer may also have a view on this: many policies require that front doors meet a minimum security standard, often a British Standard 5-lever mortice lock or a TS007-rated cylinder on a uPVC door. If the existing locks are old or of unknown origin, you could find a claim complicated by inadequate security. Changing the locks closes that gap immediately.

There is also a practical angle. Keys get lost, cut and passed on over the life of a property. If you are buying a home that has had multiple owners, or one that was previously let through a letting agent, the key history is genuinely unknowable. A lock change Slough homeowners book on moving day gives you a clean start: you know exactly who holds a key to your home, because you are the first person to have one.

The right approach to a door lock replacement Slough depends almost entirely on the type of door you have. The two most common types in the area — from the terraced streets around Chalvey to the newer estates closer to Langley and Colnbrook — are timber doors with traditional locks and uPVC or composite doors with multipoint locking systems. They look different, work differently, and require different solutions, so it is worth understanding what you are dealing with before anyone arrives.

Timber front doors — particularly on older semis and Victorian terraces — typically have two separate locks: a Yale-type nightlatch (the one that spring-latches behind you when you pull the door shut) and a 5-lever mortice deadlock set into the body of the door itself. Insurers frequently ask for the mortice lock to meet BS3621, so if yours does not, moving day is the ideal time to upgrade. Replacing a nightlatch cylinder is usually quick; installing a mortice deadlock in a new door or swapping out an existing one takes a little longer but is a straightforward job for an experienced locksmith. uPVC and composite doors — which are the standard fit on most homes built or refurbished after the 1990s — work differently. They use a multipoint locking system that engages at several points around the door frame when you lift the handle and turn the key. The key itself operates a euro cylinder, which sits in the centre of the door. Replacing the euro cylinder is the standard method for changing who can access the door, and it is a job that takes a matter of minutes once the right cylinder is sourced. The critical point here is cylinder quality. A standard euro cylinder can be vulnerable to a technique known as lock snapping, where the cylinder is broken with brute force in a matter of seconds. Anti-snap cylinders — particularly those rated to TS007 3-star — are specifically designed to resist this, and fitting one when you move in costs very little extra for a significant improvement in security.

Choosing which lock or cylinder to fit is not just about matching what was there before — it is an opportunity to improve on it. When our team carries out a lock change in Slough, we will look at the existing hardware, talk through your insurance requirements, and recommend an option that actually raises the security level rather than simply replicating it.

For uPVC and composite doors, we recommend anti-snap, anti-pick and anti-drill euro cylinders at a minimum. For timber doors, a BS3621-compliant 5-lever mortice deadlock is the benchmark, and pairing it with a good nightlatch gives you the layered security that most insurers expect. If you have a back door — a uPVC patio door or French doors are very common in Slough's older housing stock — it is worth considering whether those locks need attention at the same time. French doors often have a single-point lock that is far less secure than a multipoint system, and an experienced locksmith can advise on the best way to bring them up to a reasonable standard. If you are unsure where to start, give us a call on 01753 251949 and one of our team will talk you through it before you commit to anything.

Even with freshly changed locks and a brand-new set of keys, lockouts happen — especially in the first few weeks when routines are still forming and you are juggling a hundred other things. If you find yourself wondering what to do when you're locked out of your house, the first step is to stay calm and work through the basics before anything else. Check whether a window has been left on the latch, whether a back door is accessible, or whether a family member already inside can let you in. If you have a trusted neighbour who holds a spare key, now is the time to call them.

If none of those options work, do not attempt to force entry yourself — it is likely to damage the door or the lock, and could leave your home less secure than when you started. What to do when you get locked out of your house is straightforward: call a professional locksmith who can open the door cleanly, without damage where possible, and without you having to prove ownership through anything more than a few simple questions. As a 24 hour locksmith Slough residents rely on, Langley Locksmith operates around the clock, including evenings, weekends and bank holidays. We send a locksmith straight away and are usually with you in about 30 minutes. The price is confirmed with you on the phone before anyone sets off — the factors that affect the final quote include the type of lock involved, the time of day, the distance to your address and any parts required — so there are no surprises on the doorstep. Call us on 01753 251949 and we will get someone to you as quickly as possible.

Sometimes a lock does not need replacing — it needs repairing. uPVC door lock repair Slough is one of the most common calls we receive, particularly for doors where the multipoint mechanism has become stiff, the handle drops without engaging the locks, or the door no longer aligns properly with the frame after a cold spell or a hot summer has caused the frame to shift slightly. In those cases, the cylinder may be perfectly fine, but the gearbox or the mechanism inside the door has worn or failed. A skilled locksmith can diagnose the problem quickly and advise whether repair or replacement is the more practical route.

This matters on a moving-in scenario too. If the door you have inherited is functioning poorly — if it feels stiff to lock, if the key requires a particular trick to turn, or if the handle feels loose — do not assume it is just a quirk of the house. These are often early signs of a failing mechanism, and they tend to get worse rather than better. Getting it seen to on day one, while you are already thinking about locks, is far more convenient than dealing with a door that will not lock properly at eleven o'clock on a wet Tuesday evening in November.

As your local emergency locksmith Slough team, we are available whenever the problem appears. Whether you need a straightforward cylinder swap on moving day, a full mortice deadlock installation on a timber door, or a diagnosis of a struggling uPVC mechanism, call 01753 251949 — we answer 24/7 and can usually be with you within about 30 minutes.

Here is a full picture of what our mobile locksmith team covers across Slough, Langley, Colnbrook, Chalvey, Cippenham, Burnham and the surrounding areas: euro cylinder replacement on uPVC doors; euro cylinder replacement on composite doors; anti-snap cylinder upgrades; TS007 3-star cylinder installation; 5-lever mortice deadlock installation; BS3621 mortice lock fitting; nightlatch cylinder replacement; nightlatch body replacement; wooden door lock change; wooden door lock upgrade; multipoint locking mechanism repair; multipoint locking mechanism replacement; uPVC door realignment; uPVC door handle replacement; uPVC door gearbox replacement; French door lock repair; French door multipoint lock replacement; patio door lock repair; patio door lock replacement; front door lock change on day of move; emergency lockout response — residential; non-destructive entry where possible; lock change following a lost key; lock change following a break-in or attempted break-in; security assessment and lock upgrade recommendation on request.