Our Firm

Established in 1975, Denson Landscaping Limited is a family owned and operated business located in the rolling terrain of Caledon Hills. We are proud the name Denson has become synonymous with quality. This fact has allowed the company to consistently grow and develop into the strong, well-healed and diverse company it is today. Our scope of projects is as diverse as our coverage, which includes areas throughout the Greater Toronto area and from Oakville to as far north as the Muskoka region. Denson is skilled and competent in undertaking a variety of landscape challenges, be they residential, large-scale country estate or commercial landscape construction. Our staff is qualified landscape designers, stonemasons and artisans, carpenters and certified landscape technicians. Denson is a long time member of Landscape Ontario, and was incorporated in 1981.

Our Mission Statement

Committed to quality not quantity, we take great pride in all of our projects which has resulted in lasting relationships with all our clients. Our primary goal is to limit negative impact on the surrounding area while blending and creating as natural an environment as possible.

Our Team

Our team of qualified professionals offers a wide range of experience and tenure in the landscape profession. All of our staff attend seminars and professional association events regularly, in an effort to further their education and keep current with industry standards.

Waldo Holden; is cofounder and now principle owner of Denson Landscaping Limited. Waldo has over 30 years experience  the landscape industry. After attending Seneca College for 1 year in marketing and business Waldo decided that it was time to go back to his roots in the horticultural Industry.                                

   What started as a maintenance company in 1973 as summer employment. Denson was created in 1975 with partner Steve Watson. In 1977 Steve left to pursue other goals. Denson was incorporated in 1981. As Denson matured, Waldo updated his education at Humber Collage in the early 1980's and to this day is still educating himself according to landscape profession.


Dillon Holden; has been with Denson for  10  years. Dillon is a graduate from Humber Collage as a Landscape technician. Dillon has 10 years experience in interlock and natural stone work. Dillon also has 8 years experience in carpentry working for a variety of home builders. Dillon can do anything he wants, he has a gift!



Jake Holden; is our stone mason. Jake is a former Winter Olympian 2014 (snowboard-cross). Jake started apprenticing with various Mason's in the area, and has done work all over Southern Ontario area doing work for cottagers and homeowners. Some of this work could be considered heritage stone work. Jake started apprenticing in stone with a founding member of the Dry Stone Walling Association of Canada, which is fully endorsed by the Dry Stone Walling Association of Great Britain. Jake  has laid tens of thousand sq/ft of flagstone and has built all types of walls both dry and wet laid. You can check out his work at

Updated January 2021