We had all our windows and 2 exterior doors replaced by DWL. The planning and ordering process was good and their quote was competitive, and they started within agreed timescales. The 2 fitters worked very hard and constantly rushed around fitting all the windows much quicker than expected. However there were errors which included some of the panes of glass, wrong type of glass, bad marks in them and misaligned lead work etc. The 2 aluminium door panels were the wrong size which left a considerable gap which we felt was a security risk. Trying to get these errors fixed was a major problem as the installation manager was very hard to contact and more often than not didn’t reply to messages. When he did reply he often said he would look into the issues and promised to get back to us which also didn’t happen. No one likes to be lied to. After a month of having an insecure house, 2 new door panels arrived, one of which had a large dent in it. In all it has taken nearly 4 months for all the errors to be rectified and 4 attempts to have a door panel the right size, undamaged and the right colour. All these errors could have been avoided had everything been checked before being sent out.