Moving into a new home? Lost your keys? Upgrading your security? Lockphix replaces all types of locks across North West London the same day you call — with British Standard, insurance-approved hardware fitted as standard on every single job.
Whether you've just moved into a new property, lost a set of keys, had a break-in, or simply want to upgrade your home security, Lockphix provides fast, professional lock replacement across North West London — the same day you call.
We carry a full stock of British Standard-approved locks in our vans at all times, covering every common lock type — from euro cylinders and five-lever mortice locks to uPVC multipoint mechanisms, smart locks, padlocks, and letterbox locks. Whatever your door type and whatever your reason for replacing, our engineers arrive fully equipped to complete the job in a single visit.
Every lock we fit comes with a 12-month guarantee and is insurance-approved, meaning your home cover remains valid after the work is done. No waiting for parts. No second visits. Just a properly secured property, the same day you call.
Call NowNot sure if your locks need replacing? Here are the most common situations where a lock replacement is the right — and safest — choice:
You have no way of knowing how many keys are in circulation for your new property. Previous owners, former tenants, tradespeople, and estate agents may all have had copies. Changing all external locks before you unpack is the single most effective thing you can do to secure a new home.
If your keys are lost, there's a chance they could be found and used. If stolen — especially alongside a wallet with ID or a bag with your address — replacing your locks quickly is essential. Lockphix offers same-day lock replacement across North West London for exactly this reason.
Even if your existing lock appears undamaged after a break-in, it may have been compromised. Replace all affected locks with British Standard-approved alternatives immediately, and consider upgrading to anti-snap cylinders across all entry points.
Locks that are stiff, difficult to turn, or showing visible wear are a security risk — and often a sign the mechanism is close to failing entirely. Replacing a worn lock is far less stressful than being locked out because it gave up at an inconvenient moment.
Landlords should replace or rekey external locks between every tenancy to protect new occupants and limit liability. Lockphix provides a fast, reliable lock change service for landlords and letting agents across North West London.
Older properties may still have locks that no longer meet current insurance standards. Upgrading to British Standard-approved locks — especially anti-snap cylinders on uPVC doors — can reduce your home insurance premium and improve resistance to common break-in methods.
Euro cylinders are the most common lock type in the UK, fitted to most uPVC, composite, and many wooden doors. Yale-style rim cylinders are equally widespread on older wooden doors throughout North West London. Lockphix replaces both types on the same day across all NW London postcodes, with anti-snap, anti-pick, and anti-drill upgrades available as standard. We carry cylinders in all sizes and security ratings, including TS007-rated and British Standard-approved options.
Five-lever mortice deadlocks are the most secure and insurance-recognised lock type for wooden front and back doors. Many UK insurers specifically require a BS3621-rated five-lever mortice lock on external wooden doors for home insurance to be valid — so fitting anything less puts your cover at risk. Lockphix supplies and fits BS3621 five-lever mortice locks on the same day, across wooden, solid hardwood, and period doors throughout North West London.
uPVC doors typically use multipoint locking mechanisms — a long gearbox strip with multiple locking points that engage simultaneously when the handle is lifted. When these mechanisms wear out or fail, the whole door can become impossible to lock or open. Lockphix carries replacement gearboxes and multipoint mechanisms compatible with most common uPVC door brands and sizes, and can complete the full replacement on a single visit across North West London.
Composite doors combine multiple materials for enhanced security and insulation, but their lock mechanisms — typically a combination of an anti-snap euro cylinder and a multipoint gearbox — do need replacing over time. Lockphix specialises in composite door lock replacement across North West London, ensuring the new hardware matches the door's security specification and keeps your insurance cover intact.
Smart locks offer keyless entry via smartphone, key fob, or PIN code — ideal for homeowners who want modern convenience without compromising on security. Lockphix supplies and installs smart locks from leading brands compatible with Apple HomeKit, Amazon Alexa, and Google Home, across North West London. All smart lock installations are carried out to manufacturer specification, with full setup and testing included before our engineer leaves.
Whether it's a garden gate, garage, shed, or outbuilding, Lockphix supplies and fits padlocks to suit every application — from heavy-duty closed-shackle padlocks for high-security gates to lighter options for internal use. We carry a range of sizes and security ratings and can advise on the right choice for your specific situation during the visit.
Standard letterboxes are a surprisingly common entry point for opportunists — particularly on period properties — either through fishing for keys or direct manipulation of the latch. Lockphix fits letterbox security plates, restrictor cages, and dedicated letterbox locks across North West London, reducing this risk significantly without affecting your mail delivery.
Communal entrance doors, flat front doors, and shared-access doors in blocks require specialist locks that balance security with compliance — including escape requirements under BS8621. Lockphix has experience fitting a wide range of lock types to communal and flat doors across North West London, including work for landlords, managing agents, and residents' associations. Call us to discuss the specific requirements of your property.
Lockphix engineers are trained and equipped to replace locks on all common residential door types found across North West London:
Not sure which lock your door needs? Call us on +44 7350 607155 and describe your door — our engineer will advise before they arrive so they come stocked with exactly the right hardware.
Based on verified 2025/2026 NW London market rates from Checkatrade, LockRite, Keytek, and ServiceTasker. Always confirm exact price by phone — these are 'from' guide prices. All Lockphix lock replacements are quoted at a fixed price before work begins — including parts, labour, and VAT. No call-out fee, no hidden extras.
| Lock Type / Service | Our Price | Market Average (NW London) |
|---|---|---|
| Euro cylinder replacement (standard) | £85 | £100–£150 |
| Anti-snap euro cylinder replacement | £105 | £125–£180 |
| Yale / night latch replacement | £90 | £110–£160 |
| BS3621 five-lever mortice lock | £130 | £150–£250 |
| uPVC multipoint gearbox replacement | £140 | £160–£350 |
| Composite door lock replacement | £130 | £150–£280 |
| Smart lock supply & installation | £220 | £280–£520 |
| Padlock supply & fitting | £60 | £75–£120 |
| Letterbox security plate / lock | £55 | £70–£110 |
| Full property lock change (per quote) | POA | £350–£780+ |
| Communal / flat door lock | £110 | £130–£200 |
All prices include parts, labour, and VAT. No hidden call-out fee. Out-of-hours rates confirmed by phone. Every lock comes with a 12-month Lockphix guarantee. Call +44 7350 607155 for a free, no-obligation quote.
A British Standard lock is one that has been tested and certified by the British Standards Institution (BSI) to meet specific performance requirements around resistance to picking, drilling, cutting, and forced entry. The most common standards you'll see are BS3621 (the benchmark for external door locks on wooden doors) and TS007 3-star (the standard most commonly required for euro cylinders on uPVC and composite doors).
Most UK home insurance policies either require or strongly recommend British Standard locks on external doors. Some insurers may reduce your premium if British Standard locks are fitted, while others may refuse to pay out on a burglary claim if non-standard locks were in place. Lockphix fits British Standard-approved hardware as standard on every external lock replacement — so you never have to worry about your cover being affected.
Lock snapping is one of the most common methods used by burglars to defeat euro cylinder locks — a technique that takes seconds with no specialist knowledge. Anti-snap cylinders are specifically engineered to prevent this, breaking at a sacrificial point that leaves the internal mechanism completely intact. Lockphix recommends and fits anti-snap cylinders on all uPVC and composite doors as a minimum security standard across North West London.
Lockphix provides same-day lock replacement across all North West London postcodes, including:
Not sure if we cover your postcode? Give us a call — if we can reach you, we will.
A standard euro cylinder replacement starts from £85. A BS3621 five-lever mortice lock starts from £130. uPVC multipoint lock replacement starts from £140. Smart lock installation starts from £220. All prices include parts, labour, and VAT — confirmed as a fixed price before work starts.
Yes — always. You have no way of knowing how many key copies exist for your new property. Changing all external locks before you move in is the most effective single security measure you can take. Lockphix offers same-day lock changes across North West London for new homeowners and tenants.
Most standard cylinder or mortice lock replacements take 20–45 minutes per lock. uPVC multipoint gearbox replacements take around 45–90 minutes. Smart lock installations typically take 60–90 minutes including setup and testing.
Most UK home insurers require or strongly recommend British Standard locks on external doors. Lockphix fits BS3621 and TS007 3-star certified locks as standard on every external lock replacement — so your insurance cover is always protected.
Anti-snap cylinders prevent lock snapping — a common burglary method that defeats standard euro cylinders in seconds. Lockphix recommends anti-snap cylinders on all uPVC and composite doors as a minimum. We fit them as standard on all cylinder replacements unless you specify otherwise.
Rekeying is cheaper if the lock mechanism is in good condition — it changes the internal pins so old keys no longer work. Replacement is better if the lock is worn, damaged, or doesn't meet current insurance standards. Lockphix will advise which option is right for you when you call.
Yes. Lockphix carries a full range of lock types and sizes on every van, so in the vast majority of cases we can replace all external locks across your entire property in a single visit. Call us with the number and type of doors and we'll confirm before dispatching.
Yes — every lock fitted by Lockphix comes with a 12-month guarantee covering parts and installation. If anything goes wrong with the hardware we fit within that period, we'll fix it at no additional cost.
From a single cylinder swap to a full property lock change, Lockphix does it the same day — with British Standard hardware, a fixed price you'll know upfront, and a 12-month guarantee on everything we fit. Call us now and we'll have your property properly secured before the day is out.