About Suderman Estimating Systems Inc.

Our electrical estimating courses are taught by experienced electricians. We don't just teach theory we work through practical exercises that build on one another. Learning electrical estimating is more than just understanding the theory. Electrical estimating includes understanding labour units and how they relate to installing equipment.

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Suderman Estimating Systems was incorporated February 6th, 1984.

At that time Peter Suderman was the owner and estimator of Globe Electric. He developed 2-2 Day electrical estimating training courses and the original labour manual. Peter taught these courses to over 2500 people over the next 18 years.

John F. Wiesel purchased the company from Peter in May 2002. John had been the Vice President of estimating, sales and engineering at Roberts-Onsite of Kitchener Ontario, a company he was with for over 30 years. He had taken the Suderman Estimating training at the beginning of his tenure at Roberts and under him had their estimators and supervisors take the training as well.

John has since taught the course to over 3000 people over the past 20 years He has updated the courses to todays standards and had them registered by the Canadian Construction Association for Gold Seal Accreditation.

John published a new labour manual in 2012 with the latest updates and revisions completed in October 2021.

Over 40 plus years, 5500 people in various roles in the electrical industry have taken this training.

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John M. Wiesel joined the team in 2021. John M. has over twenty-five years in the construction industry, mostly on the electrical side as a journeyman, supervisor, estimator, project manager and pre-construction manager. John M. took the Suderman estimating course in 2000 with Peter Suderman, the knowledge and processes learned paid off at every level of his career.

John currently works on the Lean Community of Practice  with the CGYCA in Alberta. His journey with Lean began at the TMMC facilities in Cambridge and Woodstock Ontario where he executed the Kanban for electrical and mechanical installations.

Since joining the team John has worked in many different capacity’s including consulting & estimating services, updating, creating content, and instructing courses.


Dan Beresford joined the Suderman team in 2018. Dan took the Suderman Estimating Training and under the guidance of John learned estimating and how to teach the courses. Dan has developed an Introduction to Estimating course, a course designed for lighting specialists and was instrumental in reworking the courses and adapting them for online training. Dan’s background as an electrician, a manager in the solar industry, and his work in the lighting industry gives him a well-rounded background with a variety of experience.

Offices in Foothills, Alberta and Whitby, Ontario

Head Office

229026 186th Avenue West
Priddis, Fonthills, AB  T0L 1W4

John Wiesel

Ontario Office

41 Bayside Gate
Whitby, ON  L1N 9W5

Dan Beresford

Toll Free: 1-877-275-7194