Dismantling

 

Professional Arboriculture specializes in removing medium to large trees to ground level in difficult, confined spaces without damaging the surrounding garden environment. This is achieved by using techniques and methods developed over many years which allows the work to be completed safely and efficiently. Professional Arboriculture has a $2,000,000- public liability insurance policy (not claimed on) which covers any potential damage to client & public assets. This policy covers the massive risks involved in dismantling trees in close proximity to roads, footpaths, powerlines, houses, garages, glasshouses, pools, schools, etc. This type of work should only be carried out by an experienced, qualified arborist.



~Dead pine tree in Wadestown~

This dead Pine tree was dismantled because it was deemed to be a hazard due to its close proximity of the house. The process of dismantling required the tree to be cut into small pieces by having them tied off with a lowering rope to avoid damaging the concrete path, the garden shed and the corner of the house.                                                                               The first stage of the work involved removing all of the lower side branches to create clearance for the removal of the remaining upper crown.         The second stage involved lowering the upper branch material on a rope until the main structural part of the tree was left.                               The third stage involved removing and lowering the remaining heavy branch material back to the main trunk.                                                      The forth stage involved sectioning the trunk down in pieces until the trunk was brought down to a more manageable size.                                   The fifth stage involved felling the remaining trunk section along side the garden shed. To avoid destroying the side of the garden shed, a rope was tied above and below the scarf to secure the base of the trunk.           The last stage involved cutting the remaining high stump down to ground level, leaving the stump neat and tidy.                                             The debris were left in one area beside the garden shed.                     The remaining neighbouring Pine tree had several low side branches on the left side removed to improve the condition of the tree and to improve the view from the house.


 

    

~Pine tree growing through playhouse in Karori~

This pine was dismantled because it the owners decided that it had become far to big for the site. It needed to be removed without damaging the playhouse. Often a tree can be dismantled without using lowering ropes as was the case here. It still requires the tree to be cut into small, manageable pieces so that they could be thrown clear of the playhouse. Once the small branch material had been removed, the heavier branch material was cut back to the main trunk which was then sectioned down in small, manageable pieces. The stump was left high, approximately 3/4m above deck height, so that it could be utilized as a table top. The firewood was cut out of the heavier material with the remaining branch material  left on site.

 

       

~Macrocarpa on bank at Houghton Bay Road~

This Macrocarpa was removed because it was blocking out light to the house on the right. Permission had already been given by the tree owner, the house on the left.                                                                    The first part of the job involved preparing the site under the tree so that as the branch material came down it would be easier to manage on the ground. The next step involved removing lower side branches in small pieces to avoid damaging the power lines and phone lines etc running from the pole to the house. This was carried out without lowering ropes, instead I decided to use a method of cutting and throwing the branch material clear into areas under and around the tree. Once all of the smaller branch material had been removed, I continued to remove the remaining heavier branch material by cutting it into even smaller pieces, and throwing it onto the pile of branch material to avoid damaging the concrete path underneath and to avoid the heavy pieces bouncing away down the slope. After the heavy branch material had been cut back to the main trunk, I cleared around the bass of the trunk for felling. I then put a scarf in the front of the trunk at the bottom to control the direction of fall. Before the trunk could be felled, I set up a long rope strop around the trunk above the scarf and connected that to a heavy steel wire strop that was set up around the trunk under the scarf. The trunk fell perfectly into a small space down the bank in between powerlines and a fence. The strops were indispensable in preventing the trunk from sliding all the way down the bank.                This job was successfully completed within a day.



  



~Beeches in Silverstream~

These trees where removed because of their very close proximity to the house and the poor condition of the crowns. Permission was obtained from the Upper Hutt City Council to remove them as they were in a conservation zone. The level of difficulty was increased by an exposed water service pipe at the base of the trees. The job was successfully completed in approximately 6 hours.


 






 


Sycamore; Aplin Tce, Ngaio 










35 Raroa Rd, Kelburn; viewed from Glenmore St.









Pukerua Bay, pohutukawa over Audi
This medium sized pohutukawa was carefully dismantled over the Audi as the clients where away on the day, increasing the difficulty of the job. Result!









Landmark dead Pine in Wilton Rd, Wilton

Our client was glad to go ahead with the quote provided to remove his large dead Pine after telling me about his frustration in dealing with other tree companies that would not return calls or provide a quote! Astonishing!
The client arranged for both the phone line and the power line to be disconnected that were running from the street, under the tree, to the house as it was going to make the dismantling work much more efficient and therefore more cost effective. All of the debris were managed into a small gully below the tree to avoid the additional cost of removing material.
This project was successfully completed within a day, Result!


After





Specialized Dismantling Techniques

The 'Palmer Branch Strop' (P.B.S.) is utilized regularly when dismantling trees as it effectively controls the branch and wood material by absorbing the dynamic forces created when the branches are cut. Once the material becomes static, it is released from the strop and thrown into a clear area on the ground. This technique has been invaluable when working around common obstructions like buildings, guttering, powerlines, glass houses, garden ornaments, surrounding trees and shrubs etc. By eliminating any potential damage, it minimizes the impact of the tree work. It is an extremely simple device consisting of a length of cord approximately 1m long with a small loop in each end for a single action, quick release karabiner

  

P.B.S. set up on the end of a side branch

 



 

P.B.S. set up on the head of a tree

 

 



Step Cutting

This is an extremely simple yet effective method of controlling smaller, manageable sections of wood from the tree down into designated areas in the work site.                                                                              The first cut is made 3/4 the way through the diameter of the wood.     The second cut is made either just below or just above the first cut from the opposite side 3/4 the way through the diameter of the wood.            At this point, the wood should still be supporting its own weight by way of still being attached to the main part of the tree.                                The final part of the process is to, with both hands supporting the section of wood above the two cuts, make steady rocking movements from side to side to break the holding wood thus separating the cut section from the tree which can then be thrown into a clear area.                                  By controlling the sections of wood this way, it is possible to eliminate damage to property and under plantings, minimizing the impact of the tree work to the site. 

This method, in conjunction with the Palmer Branch Strop, will safely and effectively dismantle most trees in difficult, confined areas.                         It is important to note that this technique should not be attempted without first being given a complete demonstration indicating the limitations and intricacies involved.

Step 1:


Step 2:


Step 3:


Black line indicates shape of step cut



 

Port-a-Wrap Lowering Device

When branch material becomes too heavy to be lowered by hand, wraps are used to provide additional friction on the end of the rope which takes the weight and allows the material to be guided safely to the ground with more control. A basic version of this method is to wrap the tail of the rope at least two times around the base of the tree trunk to create the friction required to take the weight of the material being lowered. This method works well but the long tail of the rope usually gets tangled up on the ground and adjusting the tension of the wraps can be difficult on large diameter trunks. A more efficient method of installing wraps at the base of the tree is to use a Port-a-wrap device. This is made up of a steel tube with a couple of loops on one end and a pin at the other. It is attached with a strop and Karabiner to the base of the tree or a suitable anchor point and the rope is then thread through the top loop with the wraps set up onto the main tube part of the device. The port-a-wrap dramatically improves the speed and control of the material being lowered making it a far more effective and safe method of lowering heavy material.