Who We Are

Gunthorpe specializes in Plumbing & HVAC installation, commercial, industrial, and residential new and remodel, as well as commercial and residential service. We actively install plumbing and mechanical piping and equipment and provide labor and materials on a per job basis. We produce both in-the-shop and on-the-jobsite fabricated piping products for commercial and residential projects. 


Gunthorpe is unlike many other mechanical contracting firms in that we offer design-build and engineering services, complete project management and continued maintenance and service options. From our skilled personnel to our state-of-the-art technology and equipment, we offer a full complement of mechanical contracting services.

Our History

Gunthorpe Plumbing was founded in 1980 by Ralph A. Gunthorpe and son R. Lynn Gunthorpe. Since 1980, Gunthorpe has grown from 2 employees to averaging more than 50 employees.

In 2002, Gunthorpe Plumbing added a service division, Gunthorpe Mechanical, to serve both the residential and commercial industries while continuing to pursue contracted work (Bid and Negotiated). With an unwavering focus on Quality and Safety, we deliver the mechanical industry a quality product and excellent value. 

Through the commitment of productive, loyal employees, Gunthorpe Plumbing has consistently grown. This continuity and the ability to grow in step with changing building technology and contract methodology are the foundation of our reputation as a reliable, responsive mechanical contractor. 

Our Promise

Gunthorpe Plumbing & Heating is committed to serving the Mid-Michigan area with quality installations, which meet and exceed your expectations. We maintain that Quality, Safety and Customer Service are our top priorities.