Providing Consulting Engineering Services Since 1961.
We are a team of 95 engineers, designers, technicians and support staff dedicated to delivering innovation, excellence and expertise in mechanical, electrical and plumbing engineering design and services. These are the threads that connect every aspect of our culture – in our workplace, among our team and in partnership with clients.

RD Welcomes New Interns
Ring & DuChateau has welcomed three new interns for the summer. Alexander Kurzeja, who has completed his sophomore year at Milwaukee School of Engineering, will work with the Electrical group. He is pursuing an Electrical Engineering degree and brings [...]
RD Names New Partners
We are happy to announce the promotion of Mike Hoadley, R.D. Ruffin and T.J. Smith to Partners at Ring & DuChateau. We believe that the success of our company lies with our people, a team of 100 engineers, designers, [...]
RD Lighting Designers Win IES Award
Ring & DuChateau Lighting Designer Teresa Haas and Partner/Lighting Group Manager Holly Blomquist were honored with the Illuminating Engineering Society-Milwaukee Section’s 2025 Edwin F. Guth Award for Interior Lighting Design for their work on the 125,000 sf Potawatomi Casino [...]