Changing the Locks When You Move into a New Home

When a property changes hands, the solicitors and estate agents do their best to collect all sets of keys before completion. In practice, copies may have been made over many years — by previous tenants, tradspeople, neighbours, or family members of earlier owners — and those copies do not come with a paper trail. You are not being paranoid by assuming you do not know who holds a key; you are being rational. Insurance policies can also complicate matters: many home insurers require a 5-lever mortice deadlock that meets British Standard BS3621 on the main entrance door. If the existing lock is old, worn, or non-compliant, changing it on day one means your contents cover is valid from the moment your belongings cross the threshold.

The good news is that a door lock replacement Bexleyheath residents need is usually straightforward and fast. A trained locksmith can often swap a cylinder or replace a full lock set in under an hour, leaving you with a fresh set of keys and the confidence that your household is the only one that holds them. The cost is determined by the type of lock involved, the condition of the door, and whether any additional hardware is needed — all of which a qualified locksmith will assess and confirm as a fixed quote before any work begins.

These four terms are often used interchangeably, but they mean different things, and knowing the difference helps you describe your situation accurately when you call a locksmith. A lock change means the existing lock mechanism is removed and replaced with a new one of the same type — the most common scenario when moving into a new home. A lock replacement is broadly the same, but the word is also used when upgrading to a more secure model at the same time. A lock installation refers to fitting a lock onto a door that has none, or into a newly cut mortice pocket on a timber door — a less common but perfectly routine job. A lock repair means the existing hardware is retained and a fault — a stiff key, a misaligned latch, a broken handle — is corrected without replacing the whole mechanism.

When you move in, what you almost certainly need is a lock change or replacement, not a repair. If the door is uPVC or composite, the cylinder is swapped out quickly. If it is a traditional timber door, the mortice lock body itself may need to come out depending on its age and condition. Your locksmith will inspect the door and advise you on exactly what is needed — there is no obligation to replace more than is necessary, and a good tradesperson will tell you honestly if a repair is sufficient.

The majority of doors fitted to Bexleyheath homes built or refurbished from the 1990s onwards are uPVC or composite, and they use a multipoint locking system operated by a single handle. The weak point of these doors — something that has been well documented in the security press — is the euro cylinder that sits in the centre of the door and accepts the key. Standard euro cylinders can be vulnerable to a technique called cylinder snapping, where the cylinder is deliberately broken to access the internal mechanism. For this reason, upvc door lock repair Bexleyheath jobs frequently involve upgrading to an anti-snap cylinder rated to TS007 3-star or equivalent, which is designed to resist this attack method by sacrificing a sacrificial section of the cylinder before the internal workings are reached.

When you instruct a locksmith to carry out a euro cylinder replacement on a uPVC door, the job involves measuring the existing cylinder (the distances from the fixing screw to each end, known as the cam distances), sourcing the correct anti-snap replacement, removing the old cylinder, and fitting the new one with the correct fixing screw torque. The multipoint lock body itself — the hooks, rollers, and bolts that extend into the frame — is usually fine unless it has been damaged or is showing signs of mechanical wear. If the mechanism is sluggish or the handle feels heavy, your locksmith can lubricate or replace the gearbox as part of the same visit. If you have ever wondered whether a locksmith can get into a door secured by a high-quality euro cylinder — yes, a skilled professional has non-destructive techniques, but those same techniques are what make choosing a reputable, insured tradesperson so important when you are the legitimate owner needing access.

Older properties — and Bexleyheath has plenty of them, from the inter-war semis around Brampton Road to the Edwardian and Victorian streets closer to the town centre — are more likely to have traditional timber front doors fitted with one or two separate locks: a Yale-type nightlatch (a rim-mounted springlatch that pulls the door shut automatically) and a 5-lever mortice deadlock set into the edge of the door. The nightlatch handles day-to-day entry and exit without needing a key from the inside, while the mortice deadlock is the main security lock, often the one your insurer specifies. If you are asking whether you need to do anything beyond swapping the cylinder when moving in, the answer depends on which type you have. For a Yale-style nightlatch, the rim cylinder is simply unscrewed and replaced — a quick, low-disruption job. For a 5-lever mortice deadlock, the locksmith removes the entire lock body from the door edge, fits a new BS3621-rated replacement, and installs fresh levers and a new pair of keys. If you have ever wondered how to install a mortise lock in a new door properly, it involves chiselling an accurate mortice pocket, fitting the lock case with correct backset, and aligning the striking plate precisely — it is a job where precision matters, and an experienced locksmith will do it correctly first time.

[15] Sash locks — which combine a latch and a deadlock in a single mortice case — are common on back doors and sometimes on older front doors. These can also be replaced directly like-for-like, or upgraded. For flats in Bexleyheath, the communal entrance door is usually managed by the freeholder or managing agent, so your responsibility is typically your own flat's front door. If you are a tenant, check your tenancy agreement before changing locks — most letting agents require you to notify them and provide a copy of any new keys, though the right to reasonable security in your home is well established.

Even with brand-new locks fitted, life happens: keys get left inside, lost on the way home, or handed to a family member who is not available. If you find yourself locked out Bexleyheath — standing on your own doorstep unable to get in — the first sensible steps are to check whether a window has been left on the latch, ask a co-occupant or trusted neighbour who may hold a spare, or contact your landlord or letting agent if applicable. What to do when you are locked out of your house is a question we are asked regularly, and the honest answer is: once you have reasonably exhausted those options, calling a professional emergency locksmith is the right move. Attempting to force entry yourself risks damage to the door or frame, and in some circumstances could be misread by neighbours or police if you have no way to demonstrate you are the resident.

Our team operates as a 24 hour locksmith Bexleyheath and surrounding areas, which means that whether it is 2am on a weekday or a bank holiday afternoon, we can send a locksmith straight away and are usually with you in around 30 minutes. We always confirm an exact price on the phone before anyone sets off — the quote reflects the type of lock involved, the time of call, and what parts are needed. There are no surprises on the invoice. If you are facing a lockout right now or simply want to book a lock change ahead of moving day, call us on 020 3757 5689 — we answer 24/7 and are happy to talk through what you need before you commit to anything.

As a fully insured, mobile locksmith Bexleyheath service, we carry out a wide range of residential lock work across the Bexleyheath area and neighbouring postcodes including DA6, DA7, DA8, DA16, and DA17. The services we offer include: euro cylinder replacement on uPVC doors; anti-snap cylinder upgrades to TS007 3-star; multipoint lock mechanism replacement; uPVC door lock repair; 5-lever mortice deadlock replacement to BS3621; sash lock replacement on timber doors; Yale-style nightlatch replacement; rim cylinder replacement; full door lock change on moving day; emergency lockout assistance; non-destructive entry where possible; lock upgrades for improved insurance compliance; communal door entry assistance for flat residents; wooden door lock installation into a new door; lock changes for tenants (with appropriate ownership verification); lock changes requested by letting agents between tenancies; lock changes for homeowners after a lost key; lock changes following a break-in or attempted forced entry; door alignment and adjustment where a misaligned door is causing lock problems; lock cylinder re-pinning where re-keying is applicable; fitting additional locks where security needs to be improved; door hinge bolt fitting on inward-opening doors; letter box restrictor fitting; uPVC door handle and mechanism diagnosis; and advice on BS3621 compliance for insurance purposes.

Every job starts with a conversation — either over the phone on 020 3757 5689 or on the doorstep — where we assess what you have, what you need, and give you a clear, fixed quote before we touch anything. We work on evenings, weekends, and bank holidays at the same professional standard as any weekday call. If you are moving into a new home in Bexleyheath and want to arrange a lock change for moving day itself, give us a call in advance and we will plan around your schedule.