Comprehensive Tree Care & Consulting Services
Cohen & Master is a full-service arborist company proudly offering science-backed tree stewardship for residential, commercial, and municipal properties across Toronto and the GTA.
Tree Pruning & Maintenance
Healthy structure, hazard reduction, and light penetration.
Our certified arborists use modern climbing techniques and science-based pruning standards to remove deadwood, structure young trees, clear house roofs/wires, and enhance tree longevity without harmful topping.
Plant Health Care (PHC)
Custom diagnostic treatments, organic pest & disease solutions.
Proactive, holistic tree and shrub health care programs. We inspect your property, diagnose leaf and bark disorders, and apply targeted micro-injections and organic biological treatments.
Soil Care & Root Health
Biological soil amendments, aeration, and root collar excavation.
Healthy trees start with healthy soil. Our proprietary liquid compost tea, mycorrhizal inoculants, and supersonic Air-Spade root excavations reverse urban soil compaction and root girdling.
Consulting & Arborist Reports
Municipal bylaws, development permits, and advanced diagnostics.
Official consulting services for homeowners, developers, and municipal projects. We deliver comprehensive Arborist Reports, Tree Protection Plans (TPPs), inventories, and Sonic Tomography.
Cabling & Structural Supports
Dynamic Cobra cabling and heavy-duty steel bracing.
Preserve high-value mature trees with structural weaknesses. We install non-invasive dynamic Cobra cables and high-tensile steel brace rods to prevent limb failure during severe storms.
Tree Planting & Sourcing
Expert species selection, proper placement, and establishment.
Plant the right tree in the right place. We source top-tier native and climate-resilient nursery stock, carefully excavate planting sites, amend the root zone, and provide post-planting care.
Safe Tree Removals
Technical dismantling in tight urban quarters.
When a tree is dead, dying, severely compromised, or posing an immediate hazard, our expert crews handle safe removal using specialized rigging, cranes, and complete stump grinding.
Free Wood Chips & Mulch
Natural soil insulation and organic weed control.
We believe in closed-loop recycling. Fresh, locally chipped arborist wood chips are delivered to residential yards and community gardens to conserve soil moisture and nourish roots.
Need Help Deciding What Your Trees Need?
Our certified arborists provide honest on-site evaluations with clear, itemized recommendations and zero high-pressure sales.