Proudly serving Sarnia and Lambton County since 1996.
24/7 Emergency Service? Call us at (519) 337-9563
Contact us today for all your tree care needs.

About Us

A Rich History of Caring for Trees

Guardian Tree Systems was founded in 1996 and is one of the largest, most advanced providers of tree services in Sarnia-Lambton Area. We’re a family-owned business, representing three generations of tree-industry Raaymakers. Co-founder/owner Mike Raaymaker has more than 35 years in the field and is widely recognized as a leader in the arboriculture community. Mike learned about trees from his father, Martin Raaymaker, who had his own tree services business dating back to the 1950s and 1960s. Upon retiring, Martin turned the business over to his elder son, John. “I grew up in the business. My father and older brother taught me the trade and helped me develop a love of trees,” says Mike. “Now I’m doing the same for my son, who works in the business. We’re three generations of Raaymakers committed to trees.”

Preserving Trees Is Our Mission

“Guardian” isn’t just part of our name. It’s also our corporate philosophy. We’re much more than tree cutters. We are arborists dedicated to preserving and maintaining trees.

We rely on decades of experience to develop solutions. If a tree is unhealthy, we’ll diagnose the problem and take action to restore its health. If a tree is in danger of falling, we’ll provide it with support through cabling or bracing. And if it’s in the way, we can transplant it to a new location. We feel a genuine sense of pride in every tree we save.

Serving Lambton County

Guardian Tree Systems works with commercial and residential customers in Sarnia and surrounding areas throughout Lambton County. We also assist municipalities in caring for trees on city property as well as local utilities to keep power lines clear of trees.

After storms, we’re always available to do emergency tree removals and debris cleanup. We have a full year-round staff ready to react as soon as the need arises.

Professional Affiliations
Guardian Tree Systems is an active member of the following organizations:
Seasonal mulch and wood chips available.
Call 519-337-9563 for more information.
Our office hours are
Mon to Thurs: 9a.m. - 4p.m. but we’re available by phone 24/7, 365 days a year.
T. 519-337-9563


1701 Michigan Line Sarnia,
ON N7T 7H4