Crown thinning is a technique used by tree surgeons to remove a portion of a tree, without affecting its size or shape. Usually this is done to keep the aesthetic look of the tree, but reduce its sail effect and allow more light to pass through it.
As one of the more difficult pruning techniques, crown thinning can be hard to get right. More subtle than a crown reduction, crown thinning includes removing dilapidated, crossing or weak branches. Often, our clients will have around a 20% crown thin in larger trees, with up to 30% with fruit trees. However, this is situation dependant and a recommendation will be made during our initial consultation.
In a nutshell, the reasons you may need a crown thin are:
- Allow more light into an area such as your garden
- Improving the safety of your tree, by removing excess branches
- Reducing sail effect of the tree, as an alternative to a complete takedown
Crown lifting is a technique in which the lower branches of a tree are removed in order to heighten the crown of the tree. It is called crown lifting because once you have finished, the tree should look as if the majority of the tree is higher, or has been “lifted”.
This technique is commonly used in situations such as:
- When you need to allow more light into a garden or window of your home
- Keep branches away from roads
- Keep branches away from your building
- Open up a desirable view
Crown lifting is also often done when clearing space for paths and large green areas. We usually recommend a clearance of 3 meters above footpaths or similar.
When carrying out a crown lift it is important to leave the more mature, larger branches with protrude from the trunk. This is due to the risk involved with removing the larger branches which could result in large wounds in the trunk, leading to decay.
It is important to remember that one should remove the smaller branches as it speeds up the recovery time and reduces the stress induced by the procedure.
The British Standard for tree works BS3998:2010 advises a crown lift should not exceed 15% of the live crown height, leaving at least two thirds of the total tree height.
Reducing the height and or spread of a tree by selectively cutting back to smaller branches and in fruit trees for increasing of light interception and enhancing fruit quality.
Branches die off for a number of reasons ranging from light deficiency, pests and disease damage to root damage. A dead branch will at some point decay back to the parent stem causing abscission and fall off. This is normally a slow process but can be shortened by high winds and extremities of temperature. Therefore the main reason Deadwooding is carried out is safety. Also removal of rubbing branches is carried out.
Felling & Removal
Sometimes complete tree removal is necessary and hopefully it can be replanted with a new one. Every tree varies in size and location and our staff are highly skilled in the safe removal of any sized tree in any location. Felling allows the arborist to fell the whole tree from the ground.
Sectional felling means that the tree is felled in sections. These are usually rigged down to prevent damage to your property. If the tree has become unsafe to climb and cannot be felled, a work platform (cherry picker) or crane may be required to make sure the whole operation is safe.
Trees often fall without any warning. This can be due to storms & high winds, as a result of neglect, or simply as an act of nature. These fallen trees can block roads and train lines, damage buildings and vehicles and above all else interfere with our daily lives. Our team of expert tree surgeons are here to respond to these emergencies.
Our team will deal with the fallen tree quickly and efficiently, cutting the tree into more manageable sections and removing them for disposal. We promise to respond to any emergency tree situation as soon as we can, no matter what time of the day or night.
How we deal with ivy infestation:
Complete removal from the tree. This involves climbing the tree and cutting and pulling all the ivy out of the canopy. It is time consuming but well worthwhile as it sorts the problem and allows the climber to check for any problems with the tree.
We're really impressed with the tree work that George and Calvin undertook. What was clear from the outset was their consideration for ensuring a good reduction whilst retaining the natural structure and aesthetic of the trees. Gimbles Tree Works are a friendly, professional company that I wouldn't hesitate to use again.Julie MartinsRotherfield | 14th April 2016
Very pleased with the work carried out. George was friendly, professional and carried out the work as agreed. Highly recommended and would use again ourselves.Eve CrawfordMayfield | 12th April 2016
Four Thuja (pine) trees reduced to 10m height and 5m spread - same dimensions as last cutting in 2006. Planning permission negotiated with Local Authority (Tree Preservation Order). Work carried out efficiently and carefully. Site cleared and made tidy. Very helpful and polite service.Jack GrahamTubridge Wells | 10th February 2016
Hi George, just want to say that my beech & conifer hedges have never looked better. Same next year please. Thanks Vanessa & Peter FindlayPeter FindlayTonbridge | 2nd January 2015