The clearest sign is not being given the total price before the work starts. A serious professional tells you how much it is before touching the door.
Other things to look out for:
- You are given a figure over the phone that later turns out to be just the call-out.
- They do not tell you which part they are going to fit or why it needs changing.
- They start before you have said yes.
- There is no invoice, or you do not know whose name it is in.
- You do not know who is going to turn up or whether they are local.
To protect yourself, always ask beforehand how much it is in total, what it includes and whether you will get an invoice. If you get clear answers, you are on the right track.
That is how we work, and we explain it in how we work.