SES Mid Atlantic, LLC of Manassas

SES Mid Atlantic, LLC is a Septic Service in Manassas, VA. The company provides engineering, design, installation, inspection, maintenance and emergency response for both alternative and conventional septic systems. Services include annual inspections of alternative systems, five‑year pumping of conventional tanks, soil evaluation, septic design for residential, commercial and communal applications, and groundwater supply system design ranging from 1,000 to 100,000 gallons per day. SES Mid Atlantic serves homeowners, builders, developers, realtors, remodelers, licensed operators and other engineering firms throughout Northern Virginia. The business holds a 4.40‑star rating from customer reviews.

The firm emphasizes a family‑ and community‑oriented approach and has expanded its professional engineering capabilities since 2015. Peter Brooks, P.E., joined as director of Engineering and manager of the Powhatan office, bringing more than three decades of experience in water, wastewater and onsite sewage system design. Brooks is a licensed onsite soil evaluator, enabling the company to handle projects with complex soil conditions and to design systems for up to 156 homes in communal settings. SES Mid Atlantic also offers design and construction inspection for water wells, fire‑suppression supplies and treatment systems, and collaborates with local governments and regulators such as the Virginia Department of Health and the Department of Environmental Quality.

Located at 9251 Industrial Ct Suite 101, the office sits just 0.2 mi from University Boulevard and 0.4 mi from Sudley Manor Drive. It is a short drive to Prince William County Public Works (0.6 mi) and is within 0.7 mi of Victory Elementary School, Happy Pond and the Dawkins Branch creek.

With a focus on professional engineering design and community service, SES Mid Atlantic delivers specialized septic and water‑supply solutions that address the needs of Manassas residents and businesses.