The gaps around window and door frames give unwanted air an open invitation into a home. But with GREAT STUFF™ and GREAT STUFF PRO™ Window & Door Insulating Foam Sealant, you can block the flow of air quickly and easily. It’s especially easy if you’re working on a new construction site. If the doors and windows are already finished, you’ll need to remove the trim. When you’re done, customers will enjoy greater comfort and lower bills.