The windows you buy are only as good as the installation. Windows should be measured to fit the opening, so you get a tight fit. All window measurements vary inside and out. Therefore, we measure the inside as well as the outside of the window opening to allow for the most accurate fit. This enables the least amount of caulk line and window fill. We believe a quality installation begins with the measurements which should be performed by a professional knowledgeable installer. A great quality window basically has no value if not installed properly. We offer top quality windows and top quality installation to get the most out of your investment. Call Ellison Exterior Innovations @ 903-497-1718 for an in home consultation.