We have been replacing windows at St. John’s Lutheran Church in Northfield. Some years ago we replaced quite a few in the church and now we are tackling the balance of the windows. The exterior of the church is brick so measurements have to be carefully taken to assure that the new windows will fit the openings. We are again using Marvin clad window units. They work very well for such installations and they create a crisp, clean look while providing excellent energy features. We are careful with the removal and installation so that the interior plaster is not damaged.