Square One Design Service
Building Industry Association of Columbia: Formerly HBA of Columbia. Find Columbia area builders, remodelors, suppliers and associates all in one place.
High Performance Building Council: Sub council of the BIA. Here's where all of the builders of high performance homes meet and exchange ideas. Learn about our Certified High Performance Program, energy raters, all the products and strategies for making your next home a high performance home.
Remodelor's council: Sub council of BIA Find Columbia's best remodelors and their suppliers and subs here.