Our builder referred Greg because they had worked on another job together. Greg repaired our six original 1920s double sash windows and replaced the old half fly screens with new full fly screens (which he made). He also repaired the window beams and filled in any gaps. We were so happy with his work we asked him to replace our front door glass panels too. He had to come to our house three times and he was always on time. Each time he would provide an estimated completion time. Greg is very reasonably priced. He's a great communicator, keeps you updated and so easy to deal with. If he says he will do something even for a small job. He will do it. I would definitely refer Greg anytime.