At Forty Oaks Tree Service, we cover all aspects of arboriculture including tree selection, planting, training, fertilization, pest and pathogen control, pruning, shaping, and removal. We provide a full range of services to the Cowichan Valley; from Mill Bay/Shawnigan Lake to Ladysmith.

We also offer additional services such as wood splitting, custom milling and waste removal. See below for a full list of our services:

Utility/Service Wire Clearing

According to BC Hydro, recent studies show that 41% of people are unaware of the following…

  • As a property owner, you’re responsible for keeping the service wires on your property clear of vegetation.
  • Branches rubbing on service wires wear through the weather coating and may cause home electrical appliance damage.
  • Trees in contact with power lines or wires knocked down by trees can electrocute you and possibly ignite a fire.
  • Any work within proximity of high voltage wires must be completed by a Certified Utility Arborist.

These photos show a heavily covered service wire line. You can just barely see the wires in a couple of these photos. The vegetation had put so much weight on the service wires that once the branches were untangled and removed from it, it hung down to six feet from the ground. The two photos with the the ladder show the service wires once they were cleared.

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Section Felling or Dismantling

Tree removal of a tree in sections. Usually carried out by a climber using a rope and harness system.

The video below is a clip from a simple section dismantle of a group of seven Douglas Fir trees that were heading towards a house. All seven needed to be removed because the small trees behind the dominant and hazardous ones had never been exposed to the elements and therefore, would not have been able to withstand any wind once exposed and thus, become hazardous themselves.


The removal of a tree by cutting from ground level (where space allows). The tree is de-limbed and cross cut for removal from site once on the ground.


Pruning of major deadwood from the crown of the tree; for safety and/or aesthetics.


Crown Cleaning

Improves the structure of the tree crown by removing major deadwood, damaged/diseased branches and crossing/rubbing branches.

Crown Thinning

This involves the removal of smaller branches within the canopy, in order to decrease the overall crown density. This is ideal for allowing increased light penetration through the crown. A crown thin should involve the removal of branches evenly throughout the canopy: this is usually expressed as a percentage (as a guide only).


Crown Lift or Raise

The removal of lower branches (either whole limbs, or secondary branches). This is usually carried out in order to give clearance to property/traffic etc. or to allow more light to enter beneath the crown.

Crown Reduction

The shortening of branches throughout the crown in order to reduce the overall crown area. This is usually expressed as a percentage e.g. a 20% reduction would allow the retention of strong growth points, leaving a “natural” looking crown. Whereas a 30-40% reduction will usually leave the tree with a more stubby appearance.

Tree Safety Inspection or Survey

The inspection of individual trees, or groups of trees for defects/hazards which could result in damage to property or persons. A good survey will take into account the tree species, location and surrounding land use to provide a cost efficient action plan.

Tree Planting

We can provide advice on tree species selection; supply trees and plant them to a standard which will help to ensure that they thrive.

Hedge Trimming or Reduction

Taming of unruly hedges or manicuring of well maintained hedges.


Shrub Pruning

Pruning of shrubs to shape, improve flowering or to rejuvenate overgrown specimens.

Free Site Appraisal or Quotation

As well as providing a free no obligation quote Forty Oaks will also arrange all necessary permissions.


We also supply a variety of split/seasoned logs and provide splitting services on-site with our 21 tonne hydraulic wood splitter.

Custom Milling

We have a Norwood LM 26 Bandsaw Mill, which can turn any wood from 4 to 16 feet into whatever dimension lumber you desire.


Available to chip your yard clippings/brush into useable wood chips for your landscape or garden.