Worst LVT job I have seen on 20 years - THE RETURN

To stay one step ahead of the cowboys, always make sure you research the business and the people running the business before you commit to using them.
Google reviews can be a good place to start when looking for a good, reliable company - ask about on local Facebook groups and insist to see previous work.
Never book someone just because they belong to a "trade check" or "trader trust" organisation - pretty much anyone can buy their way onto these organisations and if you have the money, they will welcome pretty much anyone.
These organisations have no way of checking whether a tradesperson is good or not, they rely on the public to score them.
This video is a prime example of how some cleaning businesses leave a trail of misery behind them, terrible workmanship in our opinion. The person who carried out this job needs to get some training or pass the work over to other business who are better equipped and have more experience.