Mark is absolutely one of the best people I have ever worked with. You can rely on what he says. When he says, ""I have your back"", you can depend on it. He came to our home with product samples and answered all of our questions. The product guarantee is unbeatable. Once started, the project took three days and it looks great. I intend to use Mark's Windows in the future and would recommend him to anyone who has need of the services he provides.
Pros: Extremely customer service oriented
Cons: None thus far
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