Most of my work is decorating and refurbishment. This includes :
Putting up curtain rails, blinds, shelves, or pictures,
Changing light bulbs,
Unblocking sinks/toilets and small plumbing jobs like changing taps, bleeding radiators,
Fitting new sinks, toilets, baths, showers,
Repairing sheds, changing roof felts, fibre glass gprs roofs,
Fitting door bells and locks,
Fitting grab rails,
Moving furniture around the home,
Build flat pack furniture.
No job is too small. Do not hesitate to contact me even with some unusual things a general builder might not be willing to take on.
There are no set rules as far as i know. i would say anything after 7 pm up to 8am the next morning.
It is certainly not best practice. it can be done but it depends on what sort of wall you have, the type of covering (plaster, render, blocks, cement boards, ...) and importantly the weight of the tiles. personally if it was my bathroom, the existing tiles would come off.
Not ideal to have layers over layers but there shouldn t be a problem.
It would have been better to paint it with pva, but you need to scrape off all the bit that come down first/that are not secured to the ceiling. if you dont do this then you new plaster will crack in no time and come down eventually. proper course of action would be to scrape of the artex completely.