Do Your Trees Need Trimming?

Tree trimming enhances tree health and promotes safety.

Are You Concerned
About Oak Wilt?

Treating oak wilt requires prompt action and specialized care.

Learn More

Has It Been Too Long Since Your Trees Were Fertilized

Tree fertilizer boosts tree
growth and vitality.

Learn More

Want to Plant Trees but Unsure of Which species?

Planting the right tree species ensures ecosystem compatibility.

Learn More

Guardian Tree Systems

We're fully insured, and safety is always a priority.

Founded in 1996, we’re a team of experienced arborists and groundsmen who take our role as tree guardians very seriously. Preserving and maintaining trees is at the heart of our mission.

We offer you peace of mind in hiring a tree company that is fast, reliable and responsive to your needs. Over the years we’ve worked with commercial and residential clients throughout Sarnia and Lambton County, Ontario to provide quality tree services including:

Free Estimate

Crew Safety and Rescue Day
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Family-owned Business

Guardian Tree Systems Inc. is a family-owned business, representing three generations of tree industry Raaymakers. Co-Founder Mike Raaymaker has more than 45 years in the field and is widley recognized as a leader in the arboriculture community. His son Ian Raaymaker is a Certified Arborist, who has worked alongside his father for the past 28 years.