Burglar Alarm vs Locks Priority | Spend in the Right Order
Alarms react to a break-in. Locks stop one. Here's the honest order of spending for an Ilford home before you pay a monthly monitoring fee.
The alarm industry has convinced most homeowners to buy the second line of defence before the first. It's a neat trick, and it works partly because a monitored alarm carries a subscription, whereas a good cylinder is a one-off £60 and easy to ignore.
Let's be clear about what each thing actually does.
A burglar alarm detects an intrusion that is already happening. The sensor trips, the siren sounds, an app pings your phone. At that point someone is inside your house. A lock, fitted correctly, stops that person getting to the threshold in the first place. Those are not equivalent contributions to your security, and they shouldn't get equivalent budget priority.
Why the Industry Sells It Backwards
Alarm companies earn recurring revenue. A Grade 2 wireless system from a well-known installer in the IG postcodes will typically cost £600 to £900 fitted, then £15 to £30 per month for monitoring. That monthly figure is the product. The hardware is the hook.
Lock manufacturers sell a cylinder once. There's no annuity in it, so marketing spend is low and most homeowners in Goodmayes or Clayhall have never heard of TS007 3-star, SS312 Diamond, or Sold Secure. Yet these standards test something concrete: TS007 3-star requires a cylinder to resist drilling, picking, and snap attack under a defined torque. BS3621 covers deadlocks to a minimum insurance-recognised spec. These aren't marketing badges. They're pass-or-fail mechanical tests.
The Sensible Spending Order
For a typical semi-detached in Seven Kings or Newbury Park, I'd argue the priority runs like this:
| Step | What to do | Rough cost |
|---|---|---|
| 1 | Replace any standard euro cylinder with a TS007 3-star anti-snap (Ultion, Avocet ABS, or Mul-T-Lock AT) | £50 to £90 per door |
| 2 | Check the door itself locks at three points, not just the latch. A composite door with a decent multipoint (GU, Maco, Winkhaus) matters as much as the cylinder | £0 if it's fine, £180 to £350 for a multipoint upgrade |
| 3 | Add a door reinforcement kit or hinge bolts if the frame is soft timber | £40 to £80 |
| 4 | Then, if budget remains, add an alarm | £600+ |
Step 4 isn't pointless. A siren does deter, response monitoring can matter, and some insurers give a small premium reduction. But steps 1 to 3 are what keep the person outside. An alarm with a snappable cylinder on the front door is a car with airbags and no seatbelt.
The Obvious Objection
Someone will say: locks can be picked or forced regardless of standard. True, but snap attack accounts for a significant majority of cylinder-bypass break-ins in areas like Chadwell Heath and Barkingside, and a TS007 3-star cylinder defeats it in under three seconds of attempted torque. A burglar with full picking kit and unlimited time is not the realistic threat model for a terraced house in IG3.
The Fair Caveat
If you're a landlord with multiple properties, or you've already got good cylinders and solid frames throughout, an alarm absolutely earns its place. I'm not saying don't buy one. I'm saying don't buy one instead of a decent cylinder because the salesman called first.
Sort the locks. Then talk to the alarm company.
If you're not sure what cylinder is currently on your door, Rapid Response covers Ilford and the IG1 to IG6 postcodes, average arrival under 30 minutes where possible. We'll tell you what you've got and what it would cost to upgrade on the call, no obligation.
Priya Nair, Security and standards specialist
Priya is the one who reads the test reports. She handles the survey work, the insurance questions and anything where the British Standard actually matters, and she will happily explain why the number on the box is not the number that counts.
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