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Gerasa is a commercial MEP trade contractor delivering HVAC and plumbing. We engineer, coordinate, fabricate and deliver the mechanical and plumbing systems in commercial buildings — from air handling and hydronics to domestic water, sanitary and storm drainage.

We focus on commercial and institutional buildings: offices, healthcare and laboratories, hospitality and food service, retail and mixed-use, education, and data or light-industrial facilities.

In plan-and-spec, we build to an engineer's completed drawings. In design-build, we help engineer the HVAC and plumbing systems ourselves. Gerasa delivers both, plus design-assist support to refine a design before it's finalized.

We're based in Ashburn, Virginia and serve commercial projects across Northern Virginia and the Greater Washington, D.C. metro. See our service areas or contact us to confirm coverage.

Send your drawings, specifications and bid date to bids@gerasamechanical.com or use the form above. We return a constructible HVAC and plumbing number — quickly, to protect your schedule.

Gerasa is named after the ancient Greco-Roman city in Jordan (modern Jerash), renowned for engineered water systems — aqueducts, concealed plumbing, and a sewer running the length of its colonnaded main street. The name reflects our focus on the engineered systems that keep a building running. Read more.