New owners in Blackfield, no keys to their own side door. I picked the lock open, got the door working properly, sorted the bedroom door’s failed bolts, and upgraded the side and front door cylinders to snap secure. Three doors, one morning, no mess.
Let me be straight with you about what you’re reading. This is one job, done on the morning of 1 October 2026 in Blackfield, SO45, on the New Forest side of Southampton. I’m writing it down because nearly everything that went wrong on these doors goes wrong in a lot of homes round here, and most people don’t find out until the day they’re stood outside with no way in. I’m a locksmith, not a writer, with nearly twenty years on locks and doors behind me, so this is one locksmith’s honest account of what I found and what I did about it.
What was the job?
A couple had just moved into a house in Blackfield. The keys they’d been handed didn’t cover everything, and the side door into the conservatory was locked with no key for it at all. So they couldn’t use their own side door. Not the welcome to a new home anyone wants.
By the time I left there were three doors done:
- The side door (uPVC, into the conservatory). Picked open with no keys, adjusted so it opens and locks properly, and the old cylinder swapped for a snap secure one.
- The bedroom door (timber, out to the garden). Two failed shoot bolts taken out, the holes plugged, and the middle mortise lock sorted so it locks properly every time.
- The front door (uPVC). Cylinder changed for a snap secure one, so the old keys no longer work it.
How do you open a locked uPVC door with no keys?
Carefully, and without breaking anything if it can possibly be done. On this door it could. I picked the cylinder.
That brass ring sitting on the lock in the photo is a tension tool, and the thin steel bit through the middle is the pick. The tension tool puts a tiny turning pressure on the cylinder while the pick sets the pins inside one at a time. When the last one sets, the cylinder turns, just like it would with a key. No drilling, no snapping, no damage to the door or the handle.
That’s what non-destructive entry means, and it’s always where I start. Drilling is the last resort, not the first thing out of the bag. If somebody turns up to a lockout and reaches straight for the drill without trying anything else, I’d treat everything they say with both eyebrows up.
Why didn’t the side door work properly once it was open?
Because a locked door is often only half the problem. Once I was in, the door needed adjusting before it would open and lock properly, and a uPVC door that isn’t sitting right is a door that’s going to fail on you.
So I took the mechanism out and lifted the door on a jack to take the weight off the hinges while I adjusted it. Doors drop over time. When they do, the bolts and hooks stop lining up with the keeps in the frame, the handle gets stiff, and people start lifting and shoving to lock it. Keep doing that and the gearbox inside gives up. Getting the door sitting square again is a uPVC door realignment, and it’s a lot cheaper than the gearbox it saves.
The signs a uPVC door has dropped, so you can catch it early:
- You have to lift the handle harder than you used to before it’ll lock.
- The key is stiff to turn, or only turns once you’ve pushed the door in.
- The door rubs or catches on the frame, often low down on the handle side.
- You can see daylight or feel a draught at one top corner.
- There are fresh scuff marks on the frame or the threshold.
Any one of those is the door telling you something. Caught early it’s usually an adjustment, not an emergency.
Then I fitted a new cylinder. The old one was a standard cylinder. The new one is snap secure, anti-pick and anti-drill. More on why that matters further down.
What are shoot bolts, and why did I take them out?
Shoot bolts are the bolts that shoot up into the top of the frame and down into the floor when you turn a little knob on the door. You find them on a lot of timber garden and French doors. In theory they’re extra security.
In practice they’re known for failing. This door had two, and both were broken. Once one jams in the locked position, it’s a nightmare to get out without wrecking the door or the frame around it.
Why do they fail? The bolts are worked by rods running inside the door from that one knob. Timber swells and shrinks with the weather, the door drops a little, paint builds up in the keeps and grit fills the hole in the floor. Throw a bolt into a keep that’s no longer quite in line and it binds. Force the knob and something inside gives.
This bedroom door had them top and bottom, worked by that turn knob near the floor.
I got both out with minimal damage, which took patience more than force. Here’s one of them once it came free. It’s not much to look at, but a worn little block of metal like this is enough to stop you getting out of your own back door.
Then I plugged the holes where the turn knob had been, so they’re not left looking at a door full of holes. Leaving a job tidy is part of the job.
How do you get a timber door locking properly again?
With the shoot bolts gone, the door’s security rests on the mortise lock in the middle, so that lock has to work properly every single time. Not “if you lift the handle and give it a shove”.
Those black pads in the gap are air wedges. You pump them up and they hold the door steady in exactly the position you want, so you can see where the bolt is landing against the keep in the frame. The pencil marks below are me marking that up, measured, not guessed.
Once the lock and keep agree with each other, the door locks smoothly with the key and the handle, which is all anyone wants from a door. If yours is doing the lift-and-shove routine, it’s a door lock repair job, and it’s best caught before the lock gives up altogether.
Why change the locks when you move house?
Because you have no idea how many keys to your new home are out there. The previous owners, their family, a cleaner, a dog walker, the builder who did the extension ten years ago. Any of them could still have one, and none of them have done anything wrong. You just don’t know.
Changing the cylinders on a uPVC door is quick. The cylinder is the bit the key goes into, and it slides out once the retaining screw is undone and the key’s turned to line up the cam, so there’s no new door, no new handles and no mess. On this job I changed the side door and the front door.
If you’ve just moved in, the home mover lock change package is built for exactly this. Changing the locks is a lot cheaper than finding out the hard way who still has a key.
What should you check on the day you move in?
So here’s what I’d want my own mum to check on moving day. It doesn’t take long, and it’s best done in daylight with a cuppa.
- Count the doors and count the keys. Front, back, side, conservatory, garage, shed. If any door hasn’t got a key, find out now, not at night.
- Try every key in every lock. Lock and unlock each door from both sides. A key that only works with a wiggle is a lock on its way out.
- Work every handle and bolt. uPVC handles should lift and lock without a fight. Shoot bolts and window locks should move freely.
- Look for a key safe. If the last owners had one, the code may still be known to carers, cleaners or family. Change the code or have it taken off.
- Find the window keys. Locking window handles are no use if the keys went off in the removal van.
- Get the locks changed. On most uPVC and composite doors that’s just the cylinder. Whatever else you find, none of the old keys should work after.
If anything on that list doesn’t feel right, WhatsApp me a photo of it and I’ll tell you what it probably is before you book anything.
What’s the difference between a standard cylinder and a snap secure one?
Both doors here had standard cylinders. A standard cylinder can be snapped. A burglar breaks it at its weakest point, the bit in the middle, and turns the lock in seconds. It’s one of the commonest ways into a uPVC door, and I’ve written about the lock snapping attack before.
The cylinders I fitted are:
- Snap secure. Built so that if somebody snaps it, the part that works the lock stays protected.
- Anti-pick. Much harder to pick than a standard cylinder.
- Anti-drill. Hardened so a drill doesn’t just chew through it.
Yes, I picked the old one. That’s rather the point. If you want to read more before deciding, the anti-snap cylinder upgrade page goes through it.
Did it leave a mess?
No. I hoovered up and swept up before I left. Swarf from a lock, wood dust and old grease don’t belong on somebody’s floor, least of all when they’ve just moved in and every box in the house is still taped up.
The frames got a wipe down with uPVC cleaner too. Yes, those are Superman rags. They’ve earned their place in the van.
What did the customer say?
Emma left a review:
Thank you to Bugsy for working hard to open, repair and change locks to 3 doors on our property. They all work perfectly. Very polite, clean, tidy worker. There were no surprise costs. Would definitely recommend Keywise Locksmiths.
“No surprise costs” is the bit I’m proudest of. There’s no call-out fee. Coming out to you is part of the job, not a line added on top of it. If I think a job might turn complicated I say so on the phone and we agree the price before I start, never after. You can read Emma’s review, and everybody else’s, on Google.
Can you see the job on video?
Yes. I filmed a short clip on the day, and it’s on the KeyWise YouTube channel so it doesn’t slow this page down. Tap the picture to watch it.
FAQ
Can a locksmith open a uPVC door without damaging it?
Very often, yes. Picking, like on this job, opens the lock the way a key would and leaves the door, handle and cylinder unmarked. Non-destructive entry is always my first move. If a lock really can’t be picked I’ll tell you why before I do anything else.
Why does my uPVC door only lock if I lift the handle hard?
Usually because the door has dropped and the hooks or bolts no longer line up with the keeps in the frame. Adjusting the door is normally the fix. Leave it and the gearbox inside takes the strain, and in time it can fail.
Should I change the locks when I move into a new house?
Yes. You can’t know how many keys to the old locks are still out there. Changing the cylinders on a uPVC door is quick and tidy, and it means the old keys stop working.
Are shoot bolts worth keeping?
Not when they’ve failed. They jam, and once one jams locked it’s very hard to get out without damage. If yours are stiff, get them looked at while they still move. If they’ve failed, they can come out and the holes can be filled, as long as the main lock is doing its job properly.
What’s the difference between snap secure and a standard cylinder?
A standard cylinder can be snapped in seconds and turned. A snap secure cylinder is built so the part that works the lock stays protected even if somebody snaps it. The ones I fit are anti-pick and anti-drill as well.
How much does a lock change cost?
A lock change starts from £90 for the first lock, and the home mover package starts from £180. All my prices are on the prices page, and there’s no call-out fee on top.
Do you cover Blackfield and the rest of the Waterside?
Yes. I’m based in Hythe, so Blackfield, Fawley, Holbury, Langley and the rest of the Waterside are right on my doorstep, along with Southampton and the edge of the New Forest. Have a look at the locksmith in Blackfield page, or just ring me.
One last thing.
If you’ve just got the keys to a new place, do yourself a favour: count the doors, count the keys, and if the two numbers don’t add up, ring me before you need me. It’s a lot easier sorting a door on a quiet weekday morning than at ten at night with the shopping going warm on the step. Ring me on 07453 327708, or the landline on 02381 550025, and if it’s not something I can help with I’ll point you to someone honest who can.
Bugsy, KeyWise 24hr Locksmiths, Hythe, Southampton.
Be wise, phone Keywise.
