About Us

When it comes to providing cutting edge mechanical engineering and construction solutions – including design-build, fabrication, installation and maintenance services that promote sustainability at every stage of a building’s life cycle – Shapiro & Duncan is a leader in the Washington, D.C. market.

A third generation family-owned business, Shapiro & Duncan has been serving customers in the D.C. area since 1976. We are the “Provider of Choice” for complex commercial, government and institutional design-build projects that require first-rate performance, work quality and customer service.