Ultimate Guide: Changing Your UPVC Door Lock – Step-by-Step Instructions

smslocksmiths • April 9, 2025

Introduction:

Are you wondering how to upgrade or replace your UPVC door lock in London? Whether you’re considering a Euro lock change or simply enhancing your home security, this guide covers everything you need to know about UPVC door locks.

 

Why Change Your UPVC Door Lock?

UPVC doors, often constructed with versatile plastics, typically feature cylinder locks. The type of cylinder you choose plays a crucial role in your door’s security. Standard cylinders offer basic protection, but a high-grade BS3621 cylinder can significantly enhance security and may be favoured and in some cases required by insurance companies.

 

Understanding UPVC Door Components:

1. Multi-point Locking Mechanism: A strip along the door’s edge, containing bolts that extend into the frame.

2. Cylinder: Key-operated from outside, and sometimes inside, securing the door’s locking mechanism.

3. Handle Set: Operates the latch and locking mechanism on both sides of the door.

4. Hinges: Essential for door alignment and longevity.

 

Step-by-Step Guide to Changing a UPVC Door Lock:

1. Prepare the Door: Open it wide and insert the key.

2. Locate and Unscrew: Find the cylinder retaining screw on the door’s edge and unscrew it.

3. Remove the Cylinder: Gently twist and pull the key to slide out the cylinder. Use WD-40 if it’s stuck.

 

Conclusion:

Changing a UPVC door lock is a straightforward process. However, if you encounter any issues or prefer professional assistance, our locksmith services are just a call away. Enhance your home security with a reliable UPVC door lock upgrade today!



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By Locksmiths October 13, 2025
Introduction With technology advancing, you might be considering replacing your traditional locks with a smart or electronic locking system. But is that the right move for your Putney home? Here’s a breakdown of pros, cons, and what to look for. Traditional Locks: Still Reliable Time-tested mechanical systems no battery or electronics to fail Straightforward to repair or rekey Wide compatibility with UK standard locks (euro cylinder, mortice) Lower up-front cost Smart / Electronic Locks: Modern Convenience Remote access: lock/unlock via app or Bluetooth Temporary access codes or keycards (useful for visitors, workers) Audit trails: check who locked/unlocked and when Integration possibility with home automation / alarms Potential Downsides of Smart Locks Require power - battery changes or wiring More parts that may fail (electronics, motors) Compatibility: not all doors/frames will suit smart lock retrofits Cost: higher initial investment What to Consider for Your Home Usage : Are you in often, or out most of the time? Smart locks shine if you plan to use remote functions. Door type : UPVC or multipoint doors require particular coordination; some models may not fit. Security standard : Make sure the smart lock is certified (e.g. to British Standards) and offers forced-entry resistance. Backup method : Always maintain a mechanical backup (key override) in case electronics fail. Warranty & support : Pick brands with good support and ensure the locksmith can service them locally. Conclusion Smart locks can bring convenience and modern control, but they don't necessarily replace the need for a solid mechanical lock foundation. In many cases, a hybrid solution (mechanical + smart) works best. At SMS Putney Locksmith, we install and service both and we can advise what’s right for your door, budget, and security needs. 
By Locksmiths October 13, 2025
Introduction Having a locksmith come to your home can feel a little stressful, especially if it's in an emergency. But if you take just a few simple steps before they arrive, you can help them work more quickly and effectively and maybe reduce the cost in time and labour. 1. Identify the problem clearly Before you call, try to figure out exactly what’s wrong: is the key broken in the lock? Has the door warped? Did someone force entry? Observations like “key turns but won’t unlock” or “door alignment shifted after a move” help the locksmith arrive prepared. 2. Provide property details & photos if possible Send a photo or tell them the door type (UPVC, wooden, metal), lock brand or style (euro cylinder, mortice, multipoint), and whether there are other locks on that door (deadbolt, chain). This helps the locksmith bring the correct parts. 3. Clear access Make sure the path to the door is clear. Move cars or bins that could block access. Unlock gates if possible. The easier it is to get to the door, the quicker the work. 4. Have proof of address or identity ready A locksmith should verify you are the rightful occupant before gaining entry. Having a utility bill or ID ready will smooth this process. 5. Consider temporary security If a lock is failing and you’re waiting for the locksmith, consider using a chain lock or secondary bolt to add security until proper repair. 6. Ask for an estimate up front A trusted locksmith will give you a rough cost estimate before starting work, especially if parts are needed. Ask them what additional costs (parts, mileage, late hours) might apply.  Conclusion Preparing in advance helps the locksmith help you faster, safer, and potentially cheaper. At SMS Putney Locksmith, we aim to make the process smooth from beginning to end. Call us anytime for advice or to schedule a visit.
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