What We Do

RK Business Units

RK is the Rocky Mountain Region’s largest single source for mechanical contracting, custom manufacturing, steel fabrication, prefabricated construction, facilities services, electrical work and water treatment solutions.

No matter which RK unit you’re doing business with, your project or service request is backed by the powerful resources of all RK units. Your organization has full access to RK’s variety of trade skills, cross-functional advice and broad fabrication capabilities. Rely on RK to efficiently manage multiple aspects of complex projects. You’ll benefit from working with fewer subcontractors while improving the success and value of any project or work order.

RK is ISO 9001:2015 Certified and also ASME and AISC Certified. We’ve also earned OSHA’s VPP Star Mobile Workforce accreditation and OSHA’s VPP Star Worksite accreditation. This means you can trust our quality and safety.

Learn more about each RK business unit:


RK Mechanical has been a full-service plumbing, mechanical and process piping contractor and fabricator for over 50 years. From our humble beginnings in Northeast Nebraska to our current world-class…

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RK Service launched in 1998 to deliver HVAC, plumbing, drain cleaning, facility management, excavation and refrigeration services, providing a single source for…

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RK Steel was formed in 2004 as a wholly owned subsidiary (RK Specialties, Inc.) dedicated to fabricating and installing structural steel and miscellaneous metals…

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RK Energy delivers modular, prefabricated products and equipment that increase efficiency and reduce costs; they can be customized for oil and gas, mining, renewables and other industries…

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RK Water designs, manufactures and brings water product ideas to market. We also offer commercial water treatment services and we’re primary national dealer of the Silver Bullet system…


RK Electrical provides a wide range of electrical configuration, installation and testing services for all types of facilities. We can provide temporary and emergency power, lighting…

Mission Critical
Mission Critical

RK Mission Critical constructs high-quality data centers, agricultural grow facilities and other types of facilities in our off-site, quality-controlled fabrication shop…