 323-6800 or check our website out at retirewithbacca.com. Now is the time to call Crusader Retrofoam to insulate your home for the summer so you can keep the hot air out and the cold air in. Are you fed up with an uncomfortable house and a high energy bill? Crusader Retrofoam can help. Spraying injection foam creates an air barrier to improve your home's comfort all year round.