Insulating concrete forms aren't just for basements anymore. Excalibur Builders will build your custom home to fit your lifestyle. Our designer or yours. There is no home too simple or complex, too small or big. From planning to moving in, Excalibur Builders is your Insulating Concrete Form (ICF) specialist. Excalibur Builders will work with you to remodel your existing home. Whether it is enhancing what you already have or upgrading for lifestyle changes as you age, Excalibur Builders will turn your home into a place you will want to spend your time.