Needed a new kitchen window and wanted something that would be deep enough to hold plants with enough glass to supply light. Three Sons came out, identified the best window for the purpose, and gave us a quote. Two weeks later – window in, and no sign that they had ever been in our kitchen; in fact, probably cleaner than before they arrived. Perfect installation, and the estimate was accurate to the penny. I’m sure that there are cheaper ways to go, but I’m willing to pay for professional work done right the first time.