Barnet Homes has already dumped the firm from a £7m-a-year contract in the wake of financial problems which have seen Connaught’s share price sink by 95%.
Now Norwich South MP Simon Wright is considering plans to talk to other councils who use Connaught following a string of complaints from residents in his constituency.
Norwich City Council switched eight key public service contracts worth £250m over ten years to Connaught in May.
Liberal Democrat MP said that he had received numerous complaints about Connaught and he will contact MPs and councillors in many of the 150 UK councils Connaught works for to see if they are experiencing similar difficulties.
He told the Daily Mail: “If others report problems I will set up a group to work together highlighting the problems and taking these concerns to Connaught and the local councils.”