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About Us

Cressman Tree Maintenance & Landscaping Ltd. is a family-owned business that has grown and operated in the Cobourg area since 1984. We specialize in professional landscaping, property beautification and tree services for residential, commercial and municipal clients. With over 35 years of experience in the business, we are committed to delivering the highest standard of quality and workmanship for every project we undertake. Having worked on numerous and diverse projects over the years, we have built a solid reputation for excellence in year-round service.

We offer a variety of services and all work is performed by mature, professional employees while supervised by our industry professionals with decades of experience in every aspect of the business.


We have three Guiding Principles by which we operate:


We teach our personnel to work in a safe environment, and that safety is top priority.


Quality in our work is also a top priority. We want to do the best possible job, to the highest standards of quality and workmanship.


We know that we have to be productive and work efficiently; however, we will not jeopardize safety
or quality for productivity.

Armour Stone Wall - Cressman Tree Maintenance and Landscaping Ltd.

We service clients in Northumberland County and surrounding areas, including Durham Region and Peterborough, and are fully licensed and insured for the work we provide.


Cressman Tree Maintenance & Landscaping Ltd. is a proud member of many professional organizations, including:

  • Landscape Ontario

  • Canadian Nursery Landscape Association

  • Tree Care Industry Association

  • International Society of Arboriculture (ISA)

  • International Society of Arboriculture - Ontario

  • Nursery Sod Growers Association

  • Infrastructure Health and Safety Association

  • Approved Unilock Contractor

Our business has grown over the years through referrals and word of mouth. The quality of our services speaks for itself.

The Cressman Family

Del Cressman - Cressman Tree Maintenance and Landscaping Ltd.

Del Cressman

Owner/Operator, President

Del and his wife Leslie are partners in life and partners in business. They started Cressman Tree Maintenance and Landscaping Ltd. in 1984. Del is a Humber College graduate with his diploma as a Landscape Technician, majoring in Arboriculture. He has been a member of the International Society of Arboriculture (ISA) since 1984 and has served on both the ISA-International and ISA-Ontario Chapter Boards of Directors, and is a past-President of ISA-Ontario. Del holds the honoured distinction of ISA Board Certified Master Arborist® (BCMA) and served on the committee which developed the BCMA certification program. Fewer than two percent of all ISA Certified Arborists® currently hold this certification.

As an ISA Board Certified Master Arborist®, Del is qualified to develop plant health programs including insect and disease diagnosis, tree and tree hazard assessments, and tree preservation plans. Del also prides himself in guiding and training young Arborists to become the best in the business for the betterment of the industry. Del is a current member of the Fleming College Arboriculture and Urban Forestry Technician Program Advisory Committee.


  • Licensed Pesticide Operator

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