Our Solutions

Sewall is a full-service consulting firm based in Bangor, Maine. Since 1880, the company has offered a wide range of professional services, including civil and transportation engineering, site evaluation and permitting, surveying, construction management/administration and inspection.

Driven by a culture of collaboration and entrepreneurial spirit, Sewall’s engineers and surveyors partner with clients to improve communities, infrastructure, and the environment.

As of 2026, Sewall is a Sevee & Maher Engineers company! The overlap in culture and expertise will allow for our multidisciplinary staff to leverage hundreds of years of experience in engineering, geology, water supply, power and utility, site investigation and remediation, Brownfields services, and much more.

Together, we leverage the best talent in the industry to move your project forward.