What Burglars Look for Front Door | Read Yours First

A burglar walking past your house spends about eight seconds making a decision. Not eight minutes. Eight seconds. They're looking for signals, and your front door is broadcasting them whether you know it or not.

This isn't about paranoia. It's about reading your own property the way someone else already is. Walk with me through the checklist they're running in their head.

---

The Cylinder: The First Thing They Clock

Stand on the pavement and look at your front door. If you've got a uPVC or composite door, there's a cylinder sitting in the middle of it. How much of it sticks out beyond the face of the door?

More than 3mm protruding is an invitation. Standard cylinders from builders'-grade hardware often sit 10 to 15mm proud of the escutcheon plate. That's enough to grip with a pair of mole grips, apply torque, and snap the cylinder in under 20 seconds. Snap attack is exactly what it sounds like: the cylinder fractures at its weakest point (deliberately, as a manufacturing artefact of old designs), the inner section comes away, and the cam that holds your lock closed is now exposed.

A passing opportunist knows this. It's been on YouTube for over a decade.

What to check:

• Measure how far your cylinder protrudes. Use a ruler. If it's more than 3mm, that's your first problem.
• Look for a TS007 3-star rating. This is the British standard that actually tests snap resistance under a rated force load. A 1-star cylinder with a 2-star handle gives you 3-star, but the cylinder alone needs to be at least 1-star anti-snap.
• Check the brand. Avocet ABS, Ultion, Mul-T-Lock MT5+, and ERA Fortress are credible. An unbranded chrome cylinder from a builder's merchant is not.
• If your cylinder protrudes and you don't know its rating, assume it fails.

Replace a vulnerable cylinder for £40 to £90 fitted, depending on brand. An Ultion 3-star fitted runs around £80 to £120 in most RG40 and RG41 postcodes. That's the cost of a broken window, without the broken window.

---

The Letterbox: A Hand-Sized Hole in Your Door

A letterbox positioned low on a panel door, or close to the lock cylinder, is useful for two things: post, and fishing.

Fishing attacks use a long wire hook fed through the letterbox to catch door handles, thumb-turns, and keys left in locks. It takes patience but not skill. A door in Emmbrook or Woosehill with a Yale-style thumb-turn on the inside and no letterbox cage is vulnerable to it in a way the homeowner rarely suspects.

What to check:

• Open your front door and look through your own letterbox from the outside (or have someone hold a torch on the other side). What can you see? If you can see the lock cylinder, a handle, or a key, so can they.
• Is there a letterbox cage or draught excluder with a blocking plate? These cost £8 to £25 and stop hook tools reaching anything useful.
• Is the letterbox within 400mm of the lock? That's the risk zone. If it is, a cage is non-negotiable.
• Do you leave keys in the lock or on a hook inside the door? Stop.

---

The Hinge Side: Ignored by Almost Everyone

Most people think about the lock. Almost nobody thinks about the hinge side of the door. A burglar who knows their trade does.

On older wooden doors especially, the hinges are sometimes surface-mounted and secured with short screws into a softwood frame. The door looks solid. The fixings aren't. Hinge bolts (also called dog bolts) are small hardened steel bolts that project from the hinge side of the door into the frame when the door is closed, making it impossible to lever the hinge side open even if the hinges themselves fail.

What to check:

• Close your front door and push firmly at the hinge side. If there's any give, that's a problem.
• Look for hinge bolts: they're small oval inserts on the hinge side, usually two of them, one above and one below the middle hinge.
• If there are none, a locksmith can fit a pair in under an hour. Around £40 to £60 fitted. Cheap insurance.
• On uPVC and composite doors, the multi-point lock's hook bolts usually handle the hinge side, but check the hinge reinforcements are intact and that the frame is solid. A composite door in a rotted timber subframe is still a weak door.

---

The Frame: Where Most Kicks Actually Fail

Door locks don't fail in kick-in attacks. Door frames do. The lock keeps holding; the timber around the keep plate splinters.

A standard 3-lever mortice or a uPVC multi-point system can have all the right credentials, and still a single hard kick to the door below the lock will split a weak frame and pop the keep plate out of the wall. PAS24 testing (the standard required for Part Q building regulations) tests door sets, meaning door, frame, and hardware together. A certified door set passes. A certified lock in a tired 1980s timber frame doesn't.

What to check:

• Look at the frame around your door, both the visible face and as much of the inside edge as you can see. Is the timber solid, or is there paint hiding rot?
• Check the keep plate. On a uPVC door this is the multi-point keep running down the frame. Is it screwed in with long screws that reach the masonry, or short ones into timber only? Long screws (at least 75mm, ideally 100mm) into solid backing are what makes the difference.
• On a traditional mortice lock, the keep plate should be box-form, not flat-plate. A flat keep plate pulled out of softwood by a kick takes very little force.
• Doorframe reinforcement kits (Frame-Guard and similar) are available for around £30 to £80 and replace the weak timber-into-timber fixing with a steel channel. Worth fitting on any door where the frame is suspect.

---

The Porch: Free Cover, Courtesy of You

A deep porch, a recessed doorway, an overgrown hedge right up to the door. Any of these gives a burglar time and concealment to work on your lock without being visible from the road or from a neighbour's window.

In Wokingham's older estates, Norreys and Wescott in particular, you'll find 1970s houses with deep brick porches and mature shrubs that were planted for privacy from next door and now double as cover from the pavement. The homeowner thinks it looks nice. The burglar thinks it looks useful.

What to check:

• Stand at your front door as if you're trying to pick a lock. Can a neighbour see you? Can a passing car? If the answer's no for 20 seconds of standing there, your porch is a liability.
• Is there a light? Not a decorative one, a PIR-triggered one that hits the doorway properly. A 150-lux flush-mounted PIR floodlight over a recessed porch costs around £40 to £90 to fit and makes an opportunist recalculate immediately.
• Trim any hedge or shrub that creates a screen between the door and the street to below 1.2m, or remove it.
• If you have a glazed side panel next to the door, is the glass laminated or toughened? Plain float glass next to a lock is a five-second break-and-reach.

---

The Side Gate: The Back Route Through the Front

Burglars overwhelmingly prefer rear access. Less visible, harder to explain if seen, and often easier to force. Your front door might be solid; the side gate that opens to your rear garden might not be.

A timber side gate secured with a cheap hasp and a brass padlock is not an obstacle. Neither is a bolt that only engages the gate frame and not a ground socket or a top socket. A Sold Secure Silver padlock through a hardened hasp is the minimum that means anything, and a Sold Secure Gold or a closed shackle padlock with a shrouded body is better.

What to check:

• Is the side gate visible from the road? If not, how is it secured?
• Is the padlock shackle exposed? A standard open-shackle padlock can be cropped with bolt cutters in seconds. A closed shackle or shrouded padlock (Abus Granit, Squire SS80, Mul-T-Lock C13) gives the shackle nowhere to grip.
• Is the gate hinged so it can be lifted off? Add hinge bolts or anti-lift pins.
• What is it padlocked to? A hasp screwed into soft timber with 25mm screws fails before the padlock does. Use coach bolts through the gate and backing plate, or a fitted lock bar.
• Height matters. A 1.8m gate with no foothold is harder to vault. Bins, recycling boxes, or a meter cupboard next to the gate become steps. Move them.

---

The Bins: A Ladder You Left Out

This one sounds minor. It isn't.

Wheeled bins, stacked crates, a piled-up delivery box. Anything that sits next to a side gate, a side wall, or a low window gives someone a step up they didn't have before. A 240-litre wheelie bin is exactly the right height to reach a 1.8m wall. Leave it next to your side gate on bin night and it'll be there for twelve hours overnight.

What to check:

• Where do your bins live when they're not on the pavement for collection? Are they against a wall, a gate, or a fence that you wouldn't want someone climbing?
• Can you store bins in a locked enclosure, or move them away from climbable surfaces after collection night?
• Same logic applies to ladders, garden furniture, log piles next to a gate, and kids' climbing frames positioned against a boundary fence.

---

The Lock Quality Signal

Not every burglar can read a lock standard, but experienced ones know the visual tells. A cylinder with no anti-snap branding. A flimsy nightlatch (the Yale-type rim lock) with no mortice below it. A deadbolt that's years old and rattles in its keep.

A BS3621 mortice deadlock (the minimum for most home insurance policies on a final exit door) is a reasonable baseline. A 5-lever deadlock with a hardened steel bolt and anti-pick pins is a measurable step up from a 2-lever or a cheap 5-lever. On a uPVC door, the multipoint lock quality varies enormously: GU, Fuhr, Maco, Roto, and Winkhaus are credible brands; an unbranded system from a budget door supplier is not.

What to check:

• Find the brand name on your cylinder and your lock body. Look them up. If you can't find an independent test standard attached to them, that tells you something.
• For a timber front door, you want a BS3621 5-lever mortice deadlock, and a cylinder that's TS007 1-star or 3-star rated.
• For a uPVC or composite door, you want a multi-point lock from a named manufacturer and a TS007-rated anti-snap cylinder. The door itself should ideally be PAS24 tested or carry a Secured by Design certification if it was fitted post-2015.
• Check the condition. A mortice lock that's stiff, a cylinder that's loose in the door, or a multi-point that doesn't engage all its hooks and bolts smoothly is a lock that's on its way out.

---

The Visible Clues That Say 'No One's Home'

A good opportunist isn't just reading your locks. They're reading your door as a whole.

Post piled inside a glazed panel. A door mat that hasn't moved in a week. Lights on the same timer every evening at exactly the same time. Wheelie bins left on the pavement two days after collection. A door with no bell camera or visible external alarm box. None of these things are a burglar's primary signal, but they accumulate.

What to check:

• Glazed panels or sidelights: can someone see inside the porch and confirm no post has been collected? Frosted, etched, or film-treated glass stops that.
• Is there a door camera (Ring, Nest, Arlo or similar)? It doesn't have to be connected to an alarm to be useful. The visible device changes the calculation. A bell camera in Keephatch or Dowlesgreen is credible deterrence in a neighbourhood where most houses have them.
• Does your alarm box show on the front elevation? A monitored alarm with a Grade 2 box is deterrence. A dummy box is less useful than people think, because experienced burglars can usually tell.
• Smart lighting on varied schedules, not a single on/off timer, looks like presence rather than automation.

---

The Eight-Second Summary

Walk to the pavement outside your own front door. Spend eight seconds actually looking.

Cylinder proud of the plate? Flagged. No hinge bolts visible? Flagged. Deep dark porch with a big hedge? Flagged. Side gate visible and unsecured? Flagged. Bins against the wall next to the gate? Flagged.

Every flag is a thing to fix, and most of them are an afternoon's work or a single call-out. You don't need to replace the whole door to stop being the easiest target on the street. You just need to be less convenient than the next one.

---

If you've run through these checks and found things you're not sure how to address, Fort Secure covers Wokingham and the surrounding RG postcodes. We aim to be with most customers in under 30 minutes. Pricing is discussed honestly when you call, before anyone comes out. No obligation, no surprises.