I have dabbled with these sites at various times.
Mybuilder has no monthly fee and you pay for the job lead if shortlisted. ultimately most customers go with just the person with highest ratings or cheapest. due to no regular fees it attracts allsorts.
have got a couple of good local jobs from it so not all bad. there are a couple firms who go for every cu change and rewire going. am also told the prices they quote you would struggle to match, suspect not all is being declared to hmrc..
Ratedpeople is a bit better, there is a fee of 20+vat per month. you get that back in lead credit, i complained about an outfit on there and threatened to cancel, result my unused credit rolls over now. it has paid for itself several times over. Just yesterday i picked up a nice ÂŁ400 job literally a couple hundred meters away to install some sockets and move some lights in a nice new build. The monthly fee does filter out some of the cowboys. it still can at times be a race to the bottom
I was a quite sceptical of checkatrade.com and know a few people who have had bad experiences, likewise I know a plumber and heating engineer who gets most of his work from it and swears by it.
I joined myself on a 12 months for 10 deal and you can it seems subject to a few criteria can get your money back after 12 months if you play the game. I have been told by other trades that if you call there bluff after the first year they will keep fees broadly the same in order to keep you signed up, the membership team has a lot of leeway to keep you.
in the month or so I have been on it I have got a partial rewire in a 3 bed semi, a garage/outbuilding to wire up, an EICR for a house, got a shop to install track lighting and some other bits and bobs, in all I have booked in over ÂŁ2000 of work excluding materials from it. so seems to being paying for itself.
Have just quoted for an EICR for a whole school, they found me via checkatrade.com. not sure if i will get it to be honest and not 100% i actually want it as it will take 2 weeks being so big.
These sites can work but you have to have your wits about you, checkatrade the customer comes to you, the jobs are in my view larger and better value/paid.
Mybuilder seems to be the wild west but given its free to join then the online presence can only help boost your company.
Ratedpeople less of the wild west but early bird catches the worm rules on there.