A tree that looked fine over winter can surprise you by May. Spring growth happens fast, and what was a manageable oak or silver birch in February can be casting serious shade, pushing towards a roofline, or sitting lopsidedly over a fence by the time the leaves are fully out. Crown reduction is one of the most common jobs Arboright carry out across Reigate, Redhill, Banstead and the surrounding areas, and most of the enquiries start with the same question: “Is it definitely time, or am I overreacting?”
This guide helps you work that out before you call anyone.
There is no universal rule that says a tree needs work at a certain height or age. It depends on the species, the space it sits in, and what is happening around it. That said, there are some consistent signs that homeowners across Surrey notice before they pick up the phone.
A dense canopy that was fine in the open countryside becomes a different thing in a residential garden in Kingswood or Merstham. If a tree is noticeably darkening rooms that used to get afternoon light, or your neighbour has started mentioning it, that is worth looking at. Crown reduction removes height and spread while keeping the tree structurally sound. It is not the same as lopping, and a well-reduced tree will still look like a tree.
Branches that sit close to or over a roof, a garage, or a fence line are a practical concern regardless of how the tree looks otherwise. In a wet spring, the weight of saturated foliage increases substantially. Where branches are within two or three metres of your property, it is worth having an arborist take a look. Often, the work needed is less than homeowners assume.
A tree that has grown unevenly, heavily on one side or noticeably denser at the top than at the base, can become a structural issue over time, particularly on exposed sites like those in parts of Tadworth and Betchworth. A properly specified crown reduction rebalances the load, which is better for the tree’s long-term health and significantly reduces the risk of branch failure in high winds.
People use the terms interchangeably, but they are two distinct operations.
Crown reduction reduces the overall size of the canopy: the height and spread both come down by a measured amount, specified in metres. The outside of the tree gets smaller. Crown thinning removes selective branches from within the canopy to let more light and air through without changing the tree’s overall height or footprint. The tree stays the same size. It just becomes less dense.
If you need the tree to occupy less space, that is a crown reduction. If the tree is the right size but sitting heavily and not getting enough airflow, thinning is more likely what you need. Both are BS3998 operations, and both require the same level of care and specification.
This is where a lot of homeowners get caught out. The short answer is: it depends on whether your tree is protected, and it is always worth checking before any work begins.
A Tree Preservation Order (TPO) is a legal protection placed on a tree by the local planning authority. In the Reigate and Banstead area, the council issues TPOs on trees they consider to have significant amenity value, including mature oaks in private gardens, trees on boundary lines, and specimens in prominent locations. Working on a TPO tree without council consent is a criminal offence that can result in a fine of up to £20,000 in a magistrates’ court, or an unlimited fine if the case reaches the Crown Court.
You can check the Reigate and Banstead council’s protected tree register before calling a tree surgeon. If you are in the Mole Valley district covering Dorking and surrounding villages, the same process applies: notify the council and allow 56 days for the application to be considered.
Arboright carry out TPO checks before starting any job in the area. If your tree is protected and you need work done, the application process is straightforward for a qualified team. It is not a reason to avoid the work, just a step that needs to happen first.
If your property sits within a conservation area, any tree with a trunk diameter over 75mm at 1.5 metres from the ground is automatically protected. You do not need a TPO for the protection to apply. The conservation area designation is enough. Reigate Old Town, parts of Banstead, and several Surrey villages have conservation area status, and the rules are frequently misunderstood by homeowners who assume only trees with TPOs need approval.
The process here is slightly different: you serve a Section 211 notice on the council, giving them 6 weeks to object or make a TPO before you proceed. An experienced tree surgeon can advise on what is likely to be approved and will handle the notification if needed.
If your tree has no TPO and sits outside a conservation area, you can generally have reduction work carried out without council involvement. The most common exception is where planning conditions attached to your property restrict tree work, which sometimes appears in newer developments in Redhill and Merstham, where landscaping formed part of the original planning consent. If you are unsure, your title register or the council’s planning portal will have the relevant conditions.
People often want to know what happens on the day before they commit. Here is what a typical crown reduction looks like from the Arboright side.
Before any quote is given, Daniel or a team member comes to see the tree. This is not optional: crown reduction on a 15-metre oak near a roofline is a different job from a 6-metre ornamental cherry in an open garden, and the only way to price it accurately is to see it. During the assessment, we confirm the species, the condition of the main scaffold branches, whether any signs of disease or decay affect how the reduction should be approached, and whether any council checks are needed before the work starts.
Since 2010, UK tree surgery has specified crown reductions in metres, not percentages. A typical specification reads something like: “Crown reduction by 2 metres to leave a well-balanced shape, all branches cut to the nearest available growth point.” That growth point specification matters: cutting back to a secondary branch growing off the main stem means the tree retains a natural shape and produces healthy regrowth, rather than being left with blunt stubs that are vulnerable to disease and die-back.
The amount of reduction depends on the species. Sycamore, ash, lime and willow tolerate more aggressive reduction. Oak and beech generally need a more conservative approach. Getting this wrong can seriously damage a tree’s long-term health, which is why having a qualified arborist specify the work correctly at the start saves considerably more trouble later.
The crew arrives with the right equipment for the tree and site. Most residential crown reductions are carried out by climbing arborists where access allows, with no platform required. Sections come down in a controlled sequence, timber and brash are processed on site, and the garden is cleared before the team leaves. If you want to keep logs for firewood, let us know when you book. We are happy to stack them rather than chip everything.
Most species can be crown-reduced, but the tolerance varies considerably. Some trees, oak and beech in particular, do not respond well to heavy reductions and need a more considered specification. At the site assessment stage, we advise on what is achievable for your specific tree and species, and what would be excessive. A job specified correctly for the species will result in a tree that looks well-proportioned and recovers cleanly.
The honest answer is that it depends on the size of the tree, access to the site, the amount of reduction being specified, and what needs to happen with the arising material. A straightforward crown reduction on a medium-sized garden tree in Reigate is a different job from a large mature specimen on a restricted site in Banstead. The only way to give you an accurate figure is to visit. Call 01737 309066, and we can usually arrange a site visit quickly.
If the work is specified and carried out correctly, no. A properly reduced tree looks like a smaller version of itself, not like it has been hacked back. The key is cutting to growth points rather than leaving stubs, and maintaining the natural shape of the species throughout. Poorly specified crown reductions, usually from contractors cutting corners on the specification, are what give the operation a bad reputation. Work to BS3998 standards looks different.
You have a legal right to cut back branches that cross your boundary up to the boundary line without your neighbour’s permission. However, the branches remain their property. You cannot dispose of them without allowing your neighbour to collect them. For anything above ground level or involving significant branch removal, using a qualified arborist is strongly advisable for safety and to avoid inadvertently damaging the tree in a way that could create a dispute. If the tree has a TPO, the right to cut at the boundary does not override the council consent requirement.
We provide home and business owners in the Reigate and Redhill area with a selection of
There are many reasons why domestic and commercial clients in Reigate, Redhill and the surrounding areas
The tree surgeons at Arboright specialise in stump grinding solutions for home and business owners
If your tree is overhanging, blocking light, or simply looking like it has outgrown its space after this spring’s growth, it is worth getting eyes on it before summer makes the canopy any heavier. Arboright carries out crown reductions across Reigate, Redhill, Banstead, Kingswood, Tadworth, Merstham, Dorking and the surrounding areas.
All crown reduction work is carried out to BS3998 standards, fully insured with public liability cover. Daniel and the team are trained through Lantra and City & Guilds NPTC, and Arboright are Surrey Trading Standards approved.
