I had one chap from a large national telling me that we both had to be in due to trespass laws and he couldn’t come round to quote unless we were both going to be there.
I had another one quote an astronomical price and when we said we were going to get alternative quotes said that most people sign up with him and then get the alternative quotes during the cooling off period. Plus the usual manager special, doing himself an injury by quoting us so low, offer only available for the next hour due to full capacity at his factory etc.
Of course we ended up with a good local firm at a fraction of the price.