David Hillstrom

Owner, CEO, Senior Cost Estimator

With deep respect for the legacy built by his wife’s grandfather and father, David has proudly carried forward the Efraim Carlson business since 1980. With over 40 years in the construction industry, he has used his keen business insight to preserve ECC’s hallmark qualities while expanding and refining the firm’s services to meet evolving client needs.

From carpenter to superintendent, project manager to estimator, and ultimately, president, David has experienced every role within the firm. Now, as CEO, he brings his hands-on expertise into leadership, infusing field experience into the firm’s operations to benefit both clients and the organization. Known for his skill and precision in cost estimating, David still favors pencil and paper—believing that great estimating is a blend of art and science—as he shapes budgets for construction management projects and competitive bids for ECC’s general construction work.

Meeting David, you’ll find a humble, approachable “doer” whose unpretentious demeanor fosters trust. His steady guidance and commitment to quality continue to inspire confidence among clients, architects, and subcontractors alike, strengthening the organization’s reputation for superior craftsmanship, meaningful relationships, and delivering high-value projects.

David has played a pivotal role in building ECC into what it is today, grounded by his dedication to honest, dependable relationships across the industry. “Working with talented and kind architects and subcontractors has been key to our success,” David reflects. “When clients and architects return and recommend us, I know we’re doing it right.”

Outside of work, David embraces his roles as “Dad” and “Papa,” finding immense joy in family, outdoor adventures, and time with longtime friends. He and his wife, Karen, are happiest hiking, exploring, and sharing new landscapes together.