Replacing a 30 year old Everest UPVC back door

[Andy 308GTB]

The multipoint door mechanism that operates the top and bottom bolts has failed on our back door.
This website list a lot of replacement mechanisms: https://gbdiystore.com/ but none that fit my door. I've tried emailing them as they offer an identification service but they haven't responded and don't answer the phone. I've still going to spend a bit more time looking for a replacement part but I'm not holding out a lot of hope.

If I end up having to get a replacment door, are there any suggestions as to where to go for what I think would be described as a UVPC, 9 lite Georgian door? (see picture)
I think that provided I get the right size door and frame, it's not a huge task to fit the thing myself with a helping hand because usually they aren't light.

[RoadToad84]

When I built my porch, I used Dunster House for the door. Various sizes and styles available, decent online configuration tool and good lead times

[Mercdriver]

Have you tried this company? Great service for me in the past

https://www.handlesandhinges.co.uk/

[andy43]

Getting plastic door frames square and level and then getting the multipoint locks to line up and work correctly can be tricky - have a look at YouTube fitting videos to see how it’s done. Tool wise you’ll need standard tools plus a foam gun, long sds drill bits, long spirit level, glazing packers and Allen keys for adjusting the hinges if they need it. They’re not plug and play and can be an absolute pain in the arse if you don’t get everything lined up perfectly. Just saying…
Supply wise I’d go local so you can touch and feel the quality before buying.

[Spare tyre]

I’d do a couple of things, ring a local company and ask for a quote to replace and a quote to repair

I always do everything myself, but some stuff like mechanisms is so specialised and time consuming it’s not much more to get an expert in or a total replacement

[98elise]

Mercdriver said:

Have you tried this company? Great service for me in the past

https://www.handlesandhinges.co.uk/

Likewise when I was trying to find a window part these were great.

https://www.miranda.co.uk/

While I was waiting in the queue there was someone ahead of me with the entire door locking mechanism in his hand. They identified it immediately and offered to fit the new lock to the rest of the mechanism (at a cost I assume).

[Andy 308GTB]

Thanks all for your suggestions.

This company
https://www.upvc-store.co.uk/
were extremely helpful, I sent them photos and measurements last night. They came back this morning - but they no longer stocked the item but gave me a link to when they did sell it. From that I was able to identify a business on eBay that had one. It was their last one... it wasn't cheap compared to other replacement locks (£82) but a whole lot cheaper than a new door!