About us. Mariani Construction is a family run business in Park City, UT. We have been serving the Park City area for over 20 years. We do not advertise our services, we are 100% word of mouth, which proves our quality of standards and integrity. We wish to maintain this reputaion in all aspects of our company. We are employee focused. We believe that if we take care of our employees, our employees will take care of our customers. We strive to be...