Cornelius Sprenger, senior service superintendent for Dowbuilt

Cornelius Sprenger

Senior Service Superintendent

With 25 years of experience in construction, Cornelius is a dedicated Senior Service Superintendent, bringing unmatched versatility and craftsmanship to every project. Whether handling routine maintenance, preparing a vacation home, or responding to service emergencies, he consistently delivers high-quality results. With deep roots in the San Juan Islands, Cornelius understands the unique challenges of island living, site access, weather-related wear, subcontractor availability, and material sourcing. His proactive approach ensures that each home is impeccably maintained.

Growing up on Waldron Island, Cornelius developed a strong foundation in resourcefulness and collaboration. His early exposure to island construction and boating fueled a passion for craftsmanship that has guided his career. He earned a bachelor's degree in political science and Scandinavian studies from Evergreen State College and further refined his skills in traditional wooden boat building in Norway. Over the years, Cornelius has excelled in custom woodwork and museum-quality artifact display, making him a creative problem solver with a keen eye for detail.