Do a 'test' see how long they react to get a 'tradesman' for an emergency quote to something you know a lot about.
See how many, then for how long. With your experience test the knowledge of the 'tradesman' who may turn up.

My problem herein was with Quotatis approach. They have far too many websites they are linked to or own. I had an emergency boiler job for one of my tenants a hundred mles away from my home. Well by the time Qotatis responded I had fixed up everything via another organization in 30 minutes.

Your the trader who will pay Quotatis. From customers, if you don't get the customers, then you judge.
Btw. The Job was done to my expectations. Strangely enough the Plumber was also registered with Quotatis. But he said he never got the emergency untll 7 hours later. You Judge? He dropped Quotatis so he said..