I thought I needed a new sliding glass exterior patio door and when Rockville Window & Door Co. came, they answered all of my questions and were beyond honest with me. All the other places that gave me quotes told me I need to spend over $1,000 for a new door and would beat around the bush when I asked questions and just weren't as friendly. When the salesman from Rockville Window & Door Co. came, he was very honest and said the door is still brand new and could last another 5-8 years and I should simply get it repaired which saved me a ton of money. I would highly recommend this company to anyone in need of window & door service!