A contradiction, I know, but David Ling and his builders were not professional in what they did. We have been left to rectify their many errors! We chose our building contractor with great care but were heavily reliant on the accolade of him being a Which? Trusted Trader. 50% over budget with a 3 month time over run. What a big mistake! It is hard to summarise all that went wrong. Poor leadership and weak management of the project and a reluctance to employ skilled and qualified people were at the heart of the problems. Much of the plumbing was done by a general builder who had no plumbing qualifications. Very basic mistakes occurred as a consequence, including numerous leaks, albeit that they were the least of our plumbing problems! Poorly finished woodwork, plasterwork, floor levelling and decoration were common on this project. We terminated the contract in exasperation. Not a single room was finished! David Ling was very good at giving us false reassurances but failed to deliver what we specifically requested. Invoices lacked detail and were often incorrect so continual checks had to be made of the bills and the standard of work. Estimates for extra work were never provided, despite being specifically requested. Nine months on we are still paying other tradesmen to rectify and complete our newly renovated home.