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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.
Sierra Integrated Systems is an electrical contractor and AV integrator specializing in high end residential and commercial work. They offer a single source for integrated line voltage, low voltage and LED lighting solutions, including Audio Video Syst...
U.S. Waterproofing is a basement waterproofing and foundation repair company that has been serving the Midwest since 1957.
Mackenzie is a provider of professional design services including architecture and interior design; structural, civil and traffic engineering; land use and transportation planning; and landscape architecture. Anchored in the foundational elements of high performance and client focus inspired by our founder, our firm continues to expand our expertise in civic and public safety, community infrastructure, education, federal, health and wellness, high tech, hospitality, industrial, mixed-use, office, retail, and sports and recreation projects.
Hilscher-Clarke Electric Company is a full service electrical contractor, with more than 100 years experience in the commercial, industrial, and residential markets. Other services include: advanced testing, automation, emergency restoration, medium voltage, data centers, 24/7 emergency service, transmission/distribution and forestry.