CWS did a great job on my windows at a fair price. I shopped around before going with them. I talked with "slick" sales people and some others who didn't come close to the quality/price of Colorado Window Source. I saw all the window commercials and wondered how expensive that advertising must be and who ends up paying for that television time (hint: You do). CWS did a great job and the new windows are MUCH cooler in the summer and keep the heat in during the winter. They are also quieter, keeping more noise out of the house. You are going to want to get an estimate from CWS when you are shopping for windows. Glad I did.