Here is the most useful thing our locksmiths have learned from years of attending break-ins: burglars are not masterminds, they are shoppers. Most decide whether your home is worth the risk in the few seconds it takes to walk past it, and almost all of them are looking for the same thing, an easy, quiet way in and a low chance of being seen. Burglary prevention isn't about turning your house into a fortress. It's about making sure that quick assessment ends with them walking on.
Start where the burglar starts: the view from the street
Stand at your own kerb and look at the house the way a stranger would. Can the front door be seen from the road and the neighbours, or is it screened by hedges that would hide someone working on the lock? Is there a ladder, wheelie bin or garden table that makes the back fence or a first-floor window reachable? Does the side gate even have a lock on it? None of these cost much to fix, and together they change the risk calculation more than any single gadget.
Doors: where half the battle is won
Most forced entries go through a door, and most of those exploit one of two failures: a door that wasn't properly locked, or a cheap cylinder that snaps in seconds. On a uPVC or composite door, lifting the handle is not locked, you must turn the key to deadlock the mechanism, every time. And if your euro cylinder is the builder-grade original, it is almost certainly vulnerable to snapping, the UK's favourite forced-entry method; our anti-snap guide shows the two-minute check. Timber doors should carry a BS3621 deadlock, usually an insurance requirement anyway.
Windows, gates and the toolkit you store for them
Ground-floor and easily reached windows need key-operated locks, used. The garden deserves equal attention: a locked side gate forces any approach to happen in view of the street, and a locked shed matters more than people think, an unlocked shed full of spades, hammers and ladders is a burglar's toolkit, stored helpfully on site, our guide to shed and garage security covers locking it down. Keep car keys and house keys well away from the letterbox and any glass, where fishing tools can reach them.
The free habits that beat hardware
Hardware loses to habit every time. Lock the door fully even when you're home or only popping out; leave lights and a radio on timers when you're not; never post travel plans publicly while you're away; and retire the spare-key-under-the-mat tradition permanently, burglars check the obvious places first because the obvious places keep working. A trusted neighbour or a police-approved key safe beats every hiding spot in the garden.
The fifteen measures, ranked by value
- Free: deadlock the door every time · lock all windows · keys away from the letterbox · no spare key outside · lock the side gate and shed · move climbing aids · quiet social media while away.
- Under £50: light timers · key-operated window locks · a letterbox cage · trimmed sightlines to the front door.
- The bigger wins: anti-snap cylinders on every uPVC door · BS3621 deadlocks on timber doors · motion-sensing lighting on dark approaches · a visible alarm, used and maintained.
If you want a structured way to work through your own property, our 10-minute home security checklist turns this thinking into a timed walk-round with a score.
Where to start this weekend
Do the free row today, it costs nothing and removes the easiest wins a passing opportunist could take. Then check your cylinders, because if they snap, very little else on this list matters. Every LocksmithLocal locksmith fits insurance-rated anti-snap upgrades at fixed prices and will give you a straight answer about what your doors actually need, find yours here.