ABOUT RTH MECHANICAL SERVICES
BUILT ON EXPERIENCE.
DRIVEN BY CRAFTSMANSHIP.
With more than 30 years of experience, RTH Mechanical Contractors Inc. has established a strong reputation for high-quality workmanship, competitive pricing, and professional service throughout the commercial construction industry.
RTH is built on discipline, accountability, and teamwork. Our company is comprised of fully licensed and insured professionals, including pipefitters, plumbers, medical gas technicians, and ASME-certified welders operating under an approved QA Program (ASME B31.1).
We approach every project with the same commitment: deliver safe, efficient, and expertly executed mechanical systems that stand the test of time.
OUR FOUNDATION
RTH began as RTH Plumbing & Heating in 1986, founded by Richard Hansell after completing a four-year apprenticeship and working his way through the trades as a plumber, pipefitter, welder, and foreman.
In 2009, the company evolved into RTH Mechanical Contractors Inc., reflecting expanded capabilities and growing project complexity.
Today, RTH has grown to more than 60 employees and performs work across four states on the East Coast, delivering commercial, industrial, and institutional mechanical systems with consistency and precision.
WHAT SETS US APART
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Fully Licensed & Insured Workforce
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ASME Certified Welders (QA Program ASME B31.1)
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Proven Experience in Commercial & Industrial Systems
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Collaborative Project Management Approach
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Long-Standing Client Relationships
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RTH Mechanical Contractors Inc. is now proudly owned and led by E.M. Duggan, a fifth-generation mechanical contractor with more than a century of experience delivering complex commercial and institutional projects.
This partnership enhances RTH’s capabilities with expanded technical expertise, financial strength, operational resources, and strategic leadership, while preserving the hands-on culture and trusted relationships that have defined RTH for decades.
Backed by E.M. Duggan’s infrastructure and support, RTH continues to operate with the same commitment to quality, accountability, and craftsmanship. Now with a greater capacity to serve clients across the region.
Together, we bring proven field experience and expanded organizational strength to every project.