problem is, you are being priced out by unskilled labour.
Lots of people think anyone with a £2.99 paintbrush and a can of generic paint can paint anything. At my mothers house, her neighbours supposedly got a great deal on a full house repaint, but when one guy is walking into the house with a load of BQ “value” grade emulsion and are done in 8 days, you know its a f#ck of a job.
Same in my flat. The previous owner tarted up the flat for sale and just used some sh#tty emulsion for the bathroom and kitchen.
Of course, it looks fine at the time they get paid.