Any locksmiths on here? Euro cylinders you can open if key in lock inside

I think it depends on whether or not the inside key is in and turned or just in...if in and turned then it won't make much odds as I don't think the lock will work.

CISA do them, we have them fitted. Anti bump and anti snap too

Here https://www.barnsleylock.co.uk/cisa-astral-s-anti-snap-double-cylinder-4052-p.asp

Our Avocet ABS let us do that but it might be related to the length of the lock.

Surely the problem is the depth of the door. Key in both sides would touch on the middle unless you have a very thick door? We had this issue and replaced with thumb turn on the inside which I appreciate you don’t want.

Thanks guys I'll look at the cisa as well.

Lock is 100mm (45/55 split) so plenty of length.

Onzadog - which ABS one do you have, is it a serrated or dimple style key? Just trying to work out which one on their website.

Ours are the dimpled ones with a magnetic pin in there as well.

We got them from Barnsley lock company and had them keyed alike. They were really helpful. Worth checking with tham as to what lengths allow you to do that. It's possible your 45 side might be too short.

Why is a thumbturn inappropriate but leaving a key dangling in the lock - effectively becoming a thumbturn in itself - fine? Is there a safeguarding issue?

Our Avocet ABS let us do that

Mine doesn't. Much to the annoyance of my other half when I forget and it's hoisting it down outside.

Ours are the dimpled ones with a magnetic pin in there as well.

We got them from Barnsley lock company and had them keyed alike.

Exactly the same here. I've been recommending Avocet ABS for years and I've found Barnsley to consistently be the cheapest supplier.

It may well be a lock length issue as Onzadog suggests. But I've fitted Avocet to four houses now, I'm also a (crap) locksporter who's fiddled with many regular ones, and I've yet to come across any Eurocylinder that works in the way the OP is asking for.

Probably worth a call to Barnsley to ask the question.

If your problem is coming home and finding that someone has left a key in the back of the one lock that fits your key, then one solution is keyed alike locks. If someone has left a key in the back door lock, then just let yourself in the front door, or patio doors or...you get the idea. 9ne key, any lock. It's saved me a couple of times.

That assumes the rear doors don't normally have a key in them.

@cougar I suppose with a key you can take it out the lock when nobody is home (more secure and you get the benefit of easy egress in an emergency) but a thumb turn is always there (less secure).

I've been looking at something similar to this - I'd almost settled on a bunch of Ultion locks until I saw a Youtube video on how easy they were to bump ( https://www.youtube.com/shorts/wi8z64mndxw)

Still trying to find a high quality cylinder lock that is snap and bump resistant.

Sharkey's cisa lock looks like the winner at the moment.

Can't use a thumbturn as not allowed for insurance purposes, and as onzadog says, key can be removed from a normal lock whereas thumbturn can't.

The cisa ones are available keyed alike as well so one key and will work if key inside or not.

I have the Cisa Astral locks mentioned above. They work with the key in the other side of the lock. I think the smallest I have is a 35/35 and I am sure that works with a key in either side of the lock. Also bought from Barnsley who have been great in supplying additional locks and keys.

Why not just get one with a knob on the inside instead of needing a key to lock it.

Can’t use a thumbturn as not allowed for insurance purposes,

That's a good point, I hadn't thought of that. But does the same not apply if you leave your key dangling in the lock?

If your problem is coming home and finding that someone has left a key in the back of the one lock that fits your key, then one solution is keyed alike locks.

Another solution in that scenario is a doorbell. 😁 If all the locks are full of keys then someone has to be home.

Can’t use a thumbturn as not allowed for insurance purposes,

I would have thought needing a key to get out of a building in an emergency such as a house being on fire would be a problematic insurance stipulation.

If all the locks are full of keys then someone has to be home.

Someones never watched "murder in paradise"

I haven't. I have watched every episode of Death in Paradise, however. 😁

Ah it’s called an emergency function, you need these if you install a nuki electronic lock as you need a key on the inside.

I personally think a house door that can’t be unlocked from inside without a key is pretty dangerous.

Ah the old Yale lock days,when we all had a thumb turn 🙂

Bugger that, change insurance company! I checked with direct line recently and they didn't give a monkeys, As long as it had a key on the outside...

Thumbturns rule, just wish mine were keyed alike, but I'd need a euro cylinder gate lock, and I'm not sure if you can get one with a removable cylinder, and I'd ideally want a slam-lock o the gate...

So this got me wondering.

in the case of a ‘normal’ lock where the key in the lock on the inside stops you unlocking from the outside.. is it more or less secure to leave the key in the lock indoors..?

Nevermind, a quick google would seem to confirm that leaving the key in the door is a silly idea and you shouldn’t do it..

I've said this before. I will never have a door I can't get out of in any situation. Having experienced a fire where I had to wait for the firemen to knock and tell me it's safe to leave. Not having a thumb turn just isn't happening.

Ours has key outside and turn handle on inside. Problem solved and you don't need to find a key in an emergency.

Thumbturns rule, just wish mine were keyed alike, but I’d need a euro cylinder gate lock, and I’m not sure if you can get one with a removable cylinder, and I’d ideally want a slam-lock o the gate…

The Avocet Eurocylinders can be keyed-alike with their regular padlocks, if that's of any use to you / anyone.

Not having a thumb turn just isn’t happening.

Understandable, but bear in mind that if they're near a letterbox they can be opened in seconds.

Avocet ABS here with dimpled keys... None of the doors can be opened if the key is left inside and we've got various depth doors.

Regarding leaving keys in the lock, I believe this makes it very easy to break in as the key has already engaged all the cylinders and potentially if they can get in without damaging the door or lock, your insurance technically won't pay out as they normally state there needs to be signs of forced entry.