Ajay Gupta

Am a DIY novice. Haven't done any wall chasing before. Am considering putting my TV cable into a wall chase - purely for reasons of aesthetics. Internal masonry wall, I think it's 12 - 13 cm in thickness. Am considering doing a horizontal wall chase, will need to be about two feet in length, probably 1.5 - 2 cm depth (to accommodate conduit). What should I use to "close" the wall chase? I've done a little bit of plastering before, using Easifill 60 - will that be appropriate? Or should I use something else? Bear in mind the chase should ideally be fairly straightforward to 're-open' if something goes wrong with the cable. If the cable is in a conduit, does that reduce fire risks? I'm no expert at all, but at a glance, the wall looks okay, no cracks or anything (bought the house recently, it was probably built sometime in the '60's). Intend to get a scanner to check for wiring, etc. Anything else I should look for to evaluate the "health" of the wall? Is there a risk of a horizontal wall chase affecting the structural integrity/strength of the wall? Would it be a problem if either end of the wall chase was left relatively "wide open" - openings 3 - 5 cm in length? Would that increase the risk of damp/mould, etc.? Do "curved" or "diagonal" chases cause more serious structural problems than a horizontal chase?