Not sure where you're from but in Germany there are industry standards professionals have to adhere to. Sure, there are sloppy professionals like in any other job too but if they adhere to the industry standards, the result will be pretty much what you expect and they're not allowed to take shortcuts that result in lower quality work.
On the other hand, coming from a country that takes its trades extremely serious, I was shocked about what I observed every time I visited the UK. It seems the expectations vary drastically between different countries (though I'm sure there are quality professionals in the UK too).
It doesn't make too much sense to do quality work in the UK, on the whole.
House price / rent value is basically dependent on location. Money spent on fitting is generally wasted.
There are a lot of great craftsmen in the UK, but they tend to work on a subset of jobs - restoration, passion projects, really high-end stuff.
PS: This is also a direct result of ever-rising house prices. If land/house prices are consistently rising, it often makes more sense to let lots stay empty, rather than building (which is always a massive risk). It also makes sense to do any repair or upkeep work as cheaply as possible - since in a rising market, the only way you can lose money is by expensive development costs.
On the other hand, coming from a country that takes its trades extremely serious, I was shocked about what I observed every time I visited the UK. It seems the expectations vary drastically between different countries (though I'm sure there are quality professionals in the UK too).