Top 5 Signs Your Lock Needs Replacing

smslocksmiths • February 18, 2025

A faulty lock can leave your home or business vulnerable to break-ins. Here are five signs that indicate it’s time to replace your lock.


1. Difficulty Turning the Key

If you struggle to turn your key in the lock, it may be worn out or misaligned, increasing the risk of failure.


2. The Lock Feels Loose

A loose or wobbly lock can indicate internal damage or a security risk. It should be replaced before it fails completely.


3. Rust or Corrosion

Visible rust or corrosion weakens the lock and makes it easier to break. If your lock is showing signs of deterioration, consider a replacement.


4. Key Keeps Getting Stuck or Breaking

If your key frequently gets stuck or has broken inside the lock, it’s a clear sign of internal damage.


5. You've Had a Break-In Attempt

If your home or business has been tampered with, even unsuccessfully, replacing the lock ensures better security.



At Tooting Locksmiths, we provide high-security lock replacements for homes, businesses, and post boxes. Upgrade your security today!

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Many homeowners don’t realise that outdated or non-compliant locks can invalidate home insurance policies. Most insurers require external doors to be fitted with British Standard approved locks. If your locks are old, damaged, or easily forced, your insurer may reject a claim following a burglary. This is particularly important for properties in busy residential areas like Earlsfield. A professional locksmith can check whether your current locks meet insurance standards and recommend upgrades if necessary. Anti-snap cylinders and reinforced locks offer far better protection against modern burglary methods. Upgrading your locks not only improves security but also ensures you remain fully covered in the event of a claim.

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Homes in Earlsfield often experience similar lock issues due to age, wear, and regular use. One of the most common problems is a stiff or sticking lock, usually caused by misaligned doors or worn internal components. Another frequent issue is snapped keys, often the result of forcing a lock that’s already under strain. If this happens, avoid attempting to remove the broken key yourself, as it can push fragments further inside the lock. UPVC door locks can also fail over time, particularly multi-point locking systems. Difficulty lifting the handle or doors failing to lock properly are signs that professional attention is needed. A local locksmith can diagnose these issues quickly and recommend repairs or replacements before the lock fails completely. Addressing problems early can prevent emergency callouts and reduce long-term costs. If your locks aren’t working as smoothly as they should, getting them checked sooner rather than later is always the smarter option.
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