Engineering dedicated to the preservation and conservation of Water

Aqueous Consultants is a Professional Engineering firm that specializes in providing our clients with irrigation, water resources, rainwater harvesting, alternative water design, and water feature design solutions. Founded by Michael Igo, PE in 2014 in Andover, and joined full-time by his spouse and partner Andrea Igo, PE in 2016, the firm’s passion and desire to provide efficient water systems for architects, engineers, and end-users has made Aqueous a trusted partner for our clients.

By engineering systems that promote water conservation and efficiency, we lessen the dependence on drinking water, preserve ecological balance, and watch the economic bottom line. We are fortunate to have worked on some of the most prominent institutional, commercial, and residential construction projects around the United States working for the most sought-after architects, developers, and engineers. Reaching as many as 8 employees in 2025, Aqueous always seeks continued growth and forecasts a bright future with a talented staff and expanding satisfied customer base for our engineering and consulting services.

Andrea and Mike have lived in Andover (Ballardvale) for 19 years and have two sons at Andover High School.