Crown Reduction and Thinning

Crown reduction and thinning in Cardiff.

Tree got too big or too dense? Crown reduction makes the canopy smaller. Crown thinning makes it lighter. Both keep the tree's natural shape, without hacking it back further than it needs.

  • City & Guilds NPTC Level 2
  • Aerial platform and rope access
  • Based in Cardiff
Tree reduced back to its main framework, seen from above
Tree surgeon in an orange helmet cutting a branch from an aerial platform basket Careful cuts
What's involved

Smaller or lighter, still natural.

Crown reduction lowers the height and spread of the whole canopy. Each branch is cut back to a suitable side branch or growth point, so the tree keeps its outline, just smaller. It is the answer when a tree has outgrown its space.

Crown thinning takes out selected branches from inside the canopy, without changing its overall size. More light reaches the garden, wind passes through more easily and the tree carries less weight.

Will looks at the tree and tells you which it needs, or whether a mix of both is best. If the tree only needs tidying, see tree pruning and shaping. If low branches are the problem, crown lifting may be the answer.

When you need it

When a canopy needs work.

Blocking light

A dense or overgrown canopy that shades the garden, the house or a neighbour's property.

Too close to the house

Branches reaching the roof, gutters, windows or overhead cables, or a tree that has simply outgrown its space.

Heavy and exposed

Large, heavy crowns catch the wind. Reducing or thinning them takes weight and strain off the tree.

How we do it

Canopy work, start to finish.

01

Send us photos

Show the whole tree and tell us what you want to change: light, size or clearance.

02

Will checks the tree

Its health and shape, plus Tree Preservation Orders, conservation areas and nesting birds.

03

A clear plan

A plain quote explaining whether the tree needs reducing, thinning or both, and roughly how much will come off.

04

Done and tidied

The work is done from the platform or on ropes, and the site is left tidy.

On the job

Canopy work in action.

See the full gallery
Aerial platform above a tree-lined road
Aerial platform reaching into trees beside a road
View from the aerial platform above a car park and field
Questions

Crown reduction questions.

What is the difference between crown reduction and thinning?

Crown reduction makes the whole canopy smaller in height and spread. Crown thinning keeps the size the same but removes some inner branches, so the canopy is lighter and lets more light through.

Will a crown reduction harm my tree?

Done properly, no. Cutting back to suitable growth points and taking only what is needed lets the tree recover well. Removing too much at once is what causes problems, so we never overdo it.

When is the best time for crown reduction?

Many deciduous trees are best reduced in late autumn and winter, when they are dormant and their shape is easy to see. Some species are better done at other times. Will can tell you the right time for your tree.

Is crown reduction the same as topping?

No. Topping cuts branches off at random points and usually leaves the tree weak and growing back untidy. Crown reduction cuts back to growth points that can take over, so the tree stays healthy and natural.

Do I need permission for crown reduction?

Sometimes. A tree covered by a Tree Preservation Order usually needs consent from Cardiff Council before work. For most trees in a conservation area, six weeks' written notice to the council is usually required. Will checks this before anything is booked and can help you through it.

Related services
Where we work

Crown reduction across Cardiff.

We are based in Cardiff and work across the city. Further out? Check your postcode and Will can confirm.

Get a quote

Tree getting too big?

Send a few details and some photos. Will tells you what your tree needs and arranges a quote.