Have my house roof completely re-shingled some 6 years ago. Water started to leak through into the house a few weeks back during heavy rain storms. Called Feng and left a message a number of times for him to come and diagnose/fix the problem. He didn't bother to call me back at all. On my 3rd try, I managed to get hold of, and speak to Feng, the owner. He promised to show up the next day. He never did. Wing Hing simply failed to honour its 10 years written warranty. The leak is an emergency to us, and the company does not care a bit about the damages caused. Very disappointed. Beware ! Avoid hiring this company if at all possible.