D. F. Maher Architects-Builders has been designing and building Insulated Concrete Form (ICF) homes and buildings, as well as standard structures since 1992. We build our projects as a Construction Manager (CM) and that process alone can save our clients up to fifteen percent of the cost of construction. David Maher has a masters degree in architecture from the University of Wisconsin-Milwaukee and is a member of the AIA. We work all over Wisconsin, as far north as the tip of Door County and as far south as the Illinois state line.