From mechanical equipment analysis and standard energy retrofits to the installation of complex and integrated open protocol control systems, Havel promises state-of-the-art expertise and customer-centered service.

If you are in need of commercial electrical services, commercial HVAC systems, or MEP services, Havel is your single-source provider of complete electrical construction and maintenance services. Read more about each of our commercial electrical services, including retrofit services and custom fabrication.

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OTC Parts

We know that downtime isn't an option for your mission-critical systems. Havel lets you obtain critical parts faster, easier, and more cost effectively. For you, this means maximum value and maximum peace of mind. Contact us for fast HVAC, control parts, and variable frequency drives.


We install building automation systems.



We offer MEP services and commercial electrical services.

EMCOR recognizes the leadership and technical skills military candidates have to offer.

Visit our military microsite to see some of the job opportunities available in MEP services, electrical construction and maintenance, and commercial electrical services.


We service commercial HVAC systems.

Jim Witzenman, LEED® AP and Senior Vice President/Division Manager of Havel, is just one of the many people who help deliver high-performance facilities projects and unparalleled electrical construction and maintenance services that meet our clients most exacting standards.

About Us

Havel is a division of Shambaugh & Son, a nationally recognized Mechanical/Electrical/Process specialty contractor.

Shambaugh is a subsidiary of EMCOR Group, Inc., a Fortune 500 company and leader in mechanical and electrical construction, industrial and energy infrastructure, and building services.