Management Team

Mike Booth

519-842-4392 Ext. 236

Mike joined the Grassmere team in 1989 and became a partner in the company in 1995. In 2006, he became sole owner of Grassmere Construction Ltd.

With a background in architecture and three decades of experience in the construction industry, Mike has strong leadership and management abilities and a meticulous approach to workmanship. He also serves as vice president of Grassmere’s sister company, KDM Erectors.

Patti Marsh

519-842-4392 Ext. 223

Patti joined us in 2003, and her keen analytical mind is a great asset to our team.

As an energetic, motivated individual who never loses sight of the big picture, Patti oversees the finance team and manages the day-to-day activities for both Grassmere and our sister company, KDM Erectors.

Herman Sinke

Sales & Business Development
519-842-4392 Ext . 234

Herman has been with Grassmere since 2012, bringing over 30 years of experience in the marketing, sales, estimating and project management aspects of the construction industry.

As Business Development Manager, Herman’s specific expertise is in the design-build process—from concept to completion. With a background in Architectural Technology, he has managed a variety of industrial, commercial and institutional (ICI) sector projects.