Arizona's most highly skilled craft and supervision

With more than 20 years of experience in Arizona, your most demanding projects can be trusted in the hands of the area's largest core group of highly skilled craft and supervision. Coupled with our state-of-the-art prefabrication facilities, Harder Mechanical gets your project done right.

Comprehensive services

Your modern mechanical construction projects deserve groundbreaking thinking that delivers results. Discover end-to-end solutions grounded in collaboration, safety, and eight decades of proven expertise.

Design Services

In-house design-assist services lower costs, boost constructability, and reduce overall schedules for success from the very start.

Equipment Installation

Decades of experience with the most demanding equipment challenges means we get the job done—and we mean the whole job.


Specializing in complete single-source piping solutions that achieve optimal results. You name it, we build it.


Sophisticated, not complicated, for peak performance at any scale. Proven processes keep your projects on track.

Process Piping

Powering innovation and infrastructure for every industry. Specialized systems you can rely on for the long haul.

Skids & Modularization

Prefabrication reduces downtime and labor costs while minimizing the impact on your operations, no matter where you’re located.

Tank Installation & Modification

Smooth, disruption-free service for every phase of your project. Our expertise guarantees safety and success.

Virtual Design & Construction

State-of-the-art tech for designs that deliver. We combine leading-edge tools with decades of experience to envision and execute with excellence.


Marina Heights

Innovation creates a competitive advantage in commercial construction.


Cobalt Rehabilitation Hospital

Harder helped build a new specialty care facility to rehabilitate patients with complex health conditions.

Arizona industry expertise

Arizona is home to innovative companies that demand specific expertise, all while calling a unique and challenging landscape home. We've successfully completed countless projects and understand the nuances of the region, and we're ready to get started on making your idea a reality.

Start the conversation

We understand the unique challenges of building in the Arizona environment. Find out how our go-big, go-bold approach can make your next project exceed every expectation.

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Arizona Office

Contact Info

(480) 446-0744


4645 S. 35th Street Phoenix, AZ 85040

Contractors License

ROC 105309

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Join our Arizona experts

When it comes to talent and teamwork, we go harder than anyone. Join the team that sets the bar for excellence.