Juliet doors poorly installed. Leaking at side.

[fosk]

My juliet doors have started to leak at the sides quite badly into the room below.
The cill installed was too short to fill the width of the outside gap. The gap I assume was required for the steel ballustrade to be bolted on the front.
This was a poor job and I noted joiners put the doors in, when getting loft converted. Why they left a massive hole I will never know. The hole was covered with facia board and silicone which has given way.
What is best to do here, a complete rip out and new cill in, or piece a couple of cill cuts in and flash over it with something like easy lead?
I also noted they screwed down through the base frame. Does that mean best for new cill?

Appreciate any advice on this.

 

[ronniecabers]

Best way and proper way would be removed the doors and wider cill, covering that gap up before the cill is fitted. Id say the lead tray wasnt big enough either.
As goes fixing through the threshold , it's not ideal but providing they filled filled the holes with silicone before screwing the actual screws in then you should be fine

 

[fosk]

I think I will get the cill in, already ordered a piece to fit. Unfortunately it will need to be trimmed at each side so that may be a weakness where water can do. I was thinking of bringing flashing down on top of the cill at each side then fascia on top. It may look a bit silly with lead or lead like meeting plastic as well as wasting metres of the stuff.
Alternative would be a good sealant where the fascia meets the cill.
Reading up, well asking Google, I'm reading stixall would be best option as temperature and uv resistant while also flexible. Reviews all seem good On retail sites.

Any thoughts and thanks for the advice

 

[ronniecabers]

If doing it with the lead over the cill, I'd seal under the lead where the cill meets the wall, effectively double sealing it