Derk Harmsen Construction Co., Inc. (DHC) has been in business since 1979 under its present name and has been involved in the construction industry serving the Houston Area as a general contractor. Quality is priority at Derk Harmsen Construction Co., Inc. Our professionals execute cost effective labor in a timely manner. To ensure your satisfaction, all work is fully warrantable. Please review the information in this section while considering our company. Here you will find letters from our