Help - boiler repressurising/ bathroom tiling issue

[CatNut2017]

BOILER/BATHROOM HELP: We have a problem with our boiler. It needs repressurising but apparently the repressurising loop got boxed in/ tiled in when we got the bathroom refitted.
We need to make this loop thing accessible again but I am not sure how much work is involved - removing/ replacing tiles etc. I attach a picture of the tiles/ boxing.

Hopefully once you get the tiles off it will be right there in front of you and the whole lot won't need to be smashed out. In which case they can just be replaced with a silicone seal for easy future access. Assuming you have spare tiles as I doubt they will survive the removal process!

Hi Riding, it turns out they were just sealed in with silicone round the edge so came out fairly easily.

I am so relieved. Was getting very stressy as felt out of my depth + had no hot water.