Science-Backed Tree Care for Healthy, Thriving Trees.
From preventative pruning and plant health care to consulting arborist reports and emergency response, Cohen & Master provides full-service tree stewardship tailored to your property.
Due to recent seasonal storm activity in Toronto, we are prioritizing hazardous limb and emergency tree requests. If you have an urgent hazard, please call us directly.
20+ Years
Caring for Toronto's Urban Forest
10,000+
Residential Properties Served
50+ Team
Certified Arborists & Crew
100%
Science-Based Care & Safety
Comprehensive Tree Services
Everything Your Trees Need to Thrive at Every Life Stage
We combine in-house consulting, specialized soil science, precision pruning, and emergency care to provide complete solutions for homeowners, businesses, and builders.
Tree Pruning & Maintenance
Promote structural integrity, remove hazardous deadwood, and enhance canopy beauty with precision arborist pruning.
Plant Health Care
Customized diagnostic inspections, organic pest management, disease treatments, and micro-injections for vibrant trees.
Soil Care & Aeration
Specialized deep-root fertilization, liquid compost tea, mycorrhizae inoculation, and air-spade soil decompaction.
Consulting & Arborist Reports
Official municipal permit reports, Tree Protection Plans for construction, tree inventories, and expert risk assessments.
Cabling & Structural Supports
Dynamic Cobra cabling and custom steel brace rods to reinforce weak branch unions and extend mature tree life safely.
Tree Planting & Sourcing
Native and climate-resilient tree species hand-selected from top nurseries, planted with specialized soil amendments.
Safe Tree Removals
Safe, technical dismantling of dead, hazardous, or conflicting trees using specialized rigging and crane equipment.
Free Wood Chips & Mulch
High-quality, locally produced arborist wood chips delivered to nourish your soil and suppress weeds naturally.
Arborists Committed to Tree Health, Safety & the Environment
From humble beginnings—just two friends and a truck—Cohen & Master has grown into a team of over 50 dedicated staff, certified arborists, and ground specialists. In 2021, we welcomed industry pioneer Ian Bruce and Bruce Tree Expert Care to our team.
We believe in Exceptional service, Compassion, Teamwork, and Innovation. We take a holistic, science-based approach to urban trees, ensuring every property receives thoughtful recommendations focused on long-term vitality.
No-Pressure Assessments
Transparent quotes with honest recommendations.
ISA Certified Experts
Continuous training under North America's top arborists.
Trusted by Toronto's Premier Institutions & Commercial Partners
Client Reviews
Serving Over 10,000 Happy GTA Customers
See what homeowners and property managers say about our punctuality, expertise, and cleanup.
"As always, the team from Cohen & Master did an excellent job. They arrived exactly on time and worked hard and efficiently until all pruning was done. All debris was tidied immaculately. We would be pleased to recommend their services!"
Lis M.
Toronto
"I have great confidence in Cohen & Master's care of my mature oak trees. Lots of knowledge, honest, reliable, and very pleasant to deal with. I will continue to use C&M for all of my tree care needs."
Maureen K.
North York
"Super impressed with the consulting arborist report and subsequent tree protection fencing for our renovation. They navigated the City of Toronto bylaws seamlessly and saved our prized maple tree."
David & Sarah T.
The Beaches, Toronto
Ready to Schedule Your Free Tree Care Inspection?
Our certified arborists provide on-site property visits with transparent, no-obligation recommendations across Toronto, North York, Thornhill, and the GTA.
Office Hours: Monday – Friday 7:30am – 3:30pm