Guides for Ottawa homeowners
- Do you need a tree permit in your neighbourhood? Inside Ottawa’s urban boundary a private tree 30 cm or more across at chest height needs a City permit under By-law 2020-340 (30 cm in the suburbs since February 1, 2024); dead trees, hazards and borer-infested ash are exempt; the villages, Kemptville, Arnprior and Rockland follow different rules.
- The right month to prune, plant and remove. Prune December through March, February into March ideally; elms are closed April 1 to September 30 and oaks April through November; plant deciduous trees by mid-October.
- Dead ash tree removal. $500 to $2,500 while the tree can still be climbed, a bucket or crane at cost after two or three winters standing dead, and no City permit for a dead or borer-infested ash.
- How to choose a tree service in Ottawa. No licence is required to run a tree company in Ontario, so the two documents that matter are a broker-issued insurance certificate and a written quote with cleanup included.
- Tree service glossary. DBH, distinctive tree, root flare, included bark, topping versus crown reduction and the rest, in plain language: 95 cm around the trunk at chest height is the 30 cm permit threshold.
