Tree health assessment service includes hazard Inspection, Disease Diagnosis and Written Reports
A tree is structurally compromised on the inside but can look healthy on the outside. Calgary Tree Works provides tree health assessments for homeowners, property manager and municipalities. We assess what needs to be done and what your trees are going through and if there is anything else

When to Book an Assessment

  • When you see unusual leaf color, abnormal bark and leaf drops early
  • When you are not sure that the tree took storm damage but the tree is still structurally sound
  • Before buying a property, get an expert opinion on the trees before closing
  • When a neighbor’s tree is overhanging on your property and you want documentation of its condition
  • when a formal tree report is required by an insurance company, lender or municipality
  • When a Dutch Elm Disease, bronze, fire blight or another common conditions in the area
  • When a tree has been slowly declining and you want to know whether removal is the only option or whether it can be treated

What an Assessment Covers

Assessments include:
  • Visual inspection of the overall tree structure, lean and crown condition
  • Bark and trunk for decay, cankers, cracks and pest evidence
  • Root zone for heave, soil compaction and surface root damage
  • Evaluation of branch attachment for included bark and weak crotch angles
  • Identify the disease and recommendations for treatment, where applicable
  • Risk rating on a simple framework: low, moderate or high
  • Written report with findings, photographs and recommended next steps
For commercial properties, strata or situations requiring formal documentation for insurance or legal purposes, we provide a full written report with photographs, tree inventory data and specific recommendations.

Signs of Common Tree Diseases

Dutch Elm Disease (DED) is spread mostly spread by elm bark beetle and it is also a fungal disease. Calgary is one of the largest protected elm populations in Canada. It can cause rapid decline and branch dieback. Must Remove infected trees and also disposed them of in accordance with following protocols of Calgary.

 

Bronze Leaf Disease: This disease affects native trembling aspen. The first sign shows as bronze color leaves in summer which is followed by canopy dieback. So Unfortunately, there’s no effective treatment exists. For most cases, removing the tree is safest and practical approach.

 

Cytospora Canker: This disease is common in spruce, it is the most common in trees which are affect by drought or from poor drainage. One of the first signs of this disease is pitch soaked patches on the lower trunk of a tree which is followed by dieback that gradually spreads from the base of the tree.

 

Fire Blight: This Bacterial disease mainly affect crabapples, ornamental pears and mountain ash, which are very common in Calgary landscapes. Trees which are infected by this disease develop brown, curled shoot tips that gives the branches burnt looking appearance. This disease can be treated by timely pruning and also using by copper based sprays

 

Emerald Ash Borer (EAB): Although this disease is not confirmed in Calgary, but is widely spreading across Alberta. As a part of tree assessment standards we inspect every ash tree for signs of emerald ash borer (EAB).

Pricing of  Tree Health Assessment in Calgary 2026

  • Single tree inspection  from $100 to $175
  • Single tree inspection  from $175 to $300
  • Multi tree assessment from $275 to $500
  • Property wide tree inventory from $500 to $1,200
  • Large property or commercial assessment  Custom Quote
  • Expert witness, legal or insurance report Custom Quote

What Happens After your Tree Assessment?

We will find and recommend the best solution for your tree. There would be no action required; monitor and reassess at a set interval and provide specific treatment, pruning or removal. We do not recommend removing the tree at an early stages of diseases before treatment or monitoring.
If treatment or tree removal is recommended, then we will provide a separate quote for that work. If you choose to proceed with a recommended service then cost of your assessment will be applied toward the work on the same tree or trees.