Tree work in Ottawa covers a wider range than most people expect. It includes routine pruning to keep branches away from rooflines and hydro wires, full removal of dead or hazardous trees, stump grinding, emergency storm cleanup after ice and wind events, and cabling or bracing for trees with structural weaknesses. Some companies also handle planting, deep root fertilization, and pest or disease treatment for problems like emerald ash borer, which has taken out a large number of mature ash trees across the city over the past decade.
We list 30 tree service companies working in Ottawa and the surrounding areas, from small crews doing residential pruning to larger outfits with bucket trucks and cranes for big removals near power lines or tight urban lots.
What to check before you hire
Insurance and certification matter more here than in almost any other landscaping category, because the work is dangerous and mistakes can damage a house, a car, or a neighbor's property. Look for proof of liability insurance, WSIB coverage for the crew, and ideally an ISA Certified Arborist on staff for anything involving diagnosis, large removals, or work near utility lines. A written estimate that specifies debris removal, stump handling, and cleanup will save you from surprise add-on charges.
How we score these companies
Our rankings weigh review consistency, credentials and insurance, responsiveness, and how clearly a company communicates scope and pricing before work starts. See the ranked list of Ottawa tree services for the full comparison, and read our methodology for how we calculate the scores.