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The John Aarts Group is proud to announce we have reached an agreement to acquire another respected family business in London; Walmsley Brothers Ltd. Founded by Norm, Fred, Russ, George Walmsley in 1956, Walmsley Brothers has been a leader in large paving projects across southwestern Ontario, known for their commitment to high quality asphalt products and customer service.

“Walmsley Bros Paving Ltd. is a natural fit with the John Aarts Group of Companies, and will allow us to expand our heavy civil construction services in Southwestern Ontario. Walmsley’s paving operations will be merged and expanded into the existing roadbuilding activities of J-AAR Excavating Limited.


The Walmsley family has built an impressive legacy of quality workmanship and reliable service over the years and we are looking forward to working with them to build on that strong foundation as we expand our commitment to being a leading provider of heavy civil construction products and services.”

— Jonathan Aarts, Director of the John Aarts Group

The asphalt material supply will become a division of J-AAR Excavating. It will draw on the support and experience of

other related John Aarts Group businesses; AAROC Aggregates, AAROC Equipment and Dutch Brothers Ready

Mix for logistics, maintenance, quality control and manufacturing expertise.

“Through this integration, we expect to provide greater value to our clients through: improved cost, quality, scheduling and coordination; while being able to maintain the reliability, value and quality that both Walmsley Brothers and The John Aarts Group are known for. The merger provides additional career opportunities for the team members of Walmsley and the John Aarts Group.” says Ryan Aarts, President of J-AAR Excavating Limited. “We are very excited to add this highly respected team along with the ability to provide asphalt products and services to our customers in Southwestern Ontario.”

With open arms, the John Aarts Group extends a warm welcome to all of the existing Walmsley Bros. employees. We are looking forward to continued growth in becoming a leading supplier of heavy civil construction products and services in Southwestern Ontario, continuing to build lasting relationships with our customers by exceeding their expectations on every project.

The John Aarts Group is a leading provider of construction products and services in Ontario through an uncompromising commitment to quality, innovation, foresight, integrity, initiative and aggressive performance.

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John Aarts Group Acquires NJ Spivak Group of Companies

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“We are proud to be able to pass NJ and CF to a 2nd generation, family business, with a long history of working with the Spivak Family. We trust that Jonathan, Ryan, and Kevin will carry on the strong legacy of my father”

                                                                                                — Walt Spivak

Tradition & Family Legacies Align

We are excited to announce that the NJ Spivak group of companies has been acquired by the John Aarts Group.


The directors of the John Aarts Group intend to maintain the strong legacy and traditions of Nick Spivak and his sons, Walt and Jim Spivak, and grandsons Mike and Jim Spivak. The family history runs deep as John Aarts & Nick Spivak were close acquaintances and NJ Spivak was instrumental in the founding of AAROC Aggregates in the late 1980's.


The John Aarts Group is dedicated to building upon the exceptional legacy of growth and diversification established over 35 years ago by the companies’ founder, John Aarts, whose passion for high standards was evident in everything he pursued.  This Legacy is shared by the founder and successors of the NJ Spivak Group, and the companies will build on a combined legacy going forward.

As part of the transition, Walt Spivak will remain President of the Spivak group of Companies, and Mike Spivak will remain Operations Manager of NJ Spivak.


The John Aarts Group is the superior provider of construction products and services in Ontario through an uncompromising commitment to quality, innovation, foresight, integrity, initiative and aggressive performance. We will establish lasting partnerships with each customer and exceed their expectations on every project, every time.

“We are excited to enter a new chapter in the history of the John Aarts Group, which includes vertical integration into concrete supply and forming, which will continue the legacy of all our team members”

                                                                                        — Jonathan Aarts