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Garden maintenance, clearance and landscaping across SE26. Family-run, 12+ years in South East London, free quotes within 24 hours.
SE26 covers more height difference than almost any other postcode in South East London, and it changes what your garden needs from one end of the hill to the other.
Sydenham Hill tops out at 112 metres, making it one of the highest points in London. Lower Sydenham sits down in the Pool River valley. Between those two you pass through three genuinely different sets of ground conditions, and advice that suits one will be wrong for the others.
The Norwood Ridge is London Clay capped by the Claygate Beds, a layer of permeable sands and gravels. Gardens up around Sydenham Hill and Upper Sydenham sit on that cap, on notably thin topsoil.
What that means in practice: better drainage than most of SE London, but hungry ground that dries out fast in summer and does not hold nutrients. Lawns brown off early. New planting needs watering longer into its first season than you would expect. The fix is organic matter and mulch, year after year, not drainage work.
You also get the exposure that comes with height. Wind across the top of the ridge is harder on fences and hedges than anywhere lower down.
This is the one that catches people out, and it has a proper explanation.
Rainwater soaks through the permeable Claygate sands until it hits the impermeable London Clay beneath, then travels sideways and emerges as springs where the two layers meet. On the Norwood Ridge that junction runs along roughly the 75 to 95 metre contour, draining west toward the old Effra valley and east toward the Ravensbourne.
So if your garden sits partway down the hill and has one patch that stays boggy no matter what you do, while the rest of the garden drains perfectly well, that is almost certainly why. Willows and other water-loving plants growing where nobody planted them is the giveaway.
This is not a drainage fault you can dig out. Water is arriving from uphill and it will keep arriving. Fighting it wastes money. Working with it, with a bog border or a planted wet area, costs less and looks better. Sydenham Wells Park exists because of these same springs, which were found around 1640 and drew visitors for their mineral waters.
Lower Sydenham sits on London Clay proper, down toward the Pool River. Here you get the familiar South East London picture: water sitting on the lawn through winter, moss taking over grass, ground cracking hard in August, and fence posts working loose as the clay shrinks and swells.
Different problem, opposite solution. Down here it is about breaking up compaction and improving drainage, not about holding moisture in.
We will tell you which of the three your garden is in before we quote, because the recommendation genuinely changes.
Call us on 07760800457 or email office@urbangardeners.co.uk for a free quote within 24 hours.
Our most requested service in SE26, and on this side of Lewisham the seasonal pattern is unusually pronounced.
Sydenham Hill Wood and the Dulwich woods along the ridge are among the oldest surviving woodland in London, and the tree cover spreads well beyond the reserve itself. Gardens across SE26 sit under mature oak, hornbeam and sycamore, and the autumn leaf volume genuinely surprises people who move here from flatter, less wooded parts of London.
Left on a lawn, a thick leaf layer blocks light and holds moisture through winter, which is how you get bare patches and moss by spring. Regular visits through October and November cost far less than the repair work in April.
£83 for the first hour, £65 for each hour after, no minimum charge. Most first visits run two to three hours to get a garden back to a workable baseline. Ongoing visits can be as short as an hour once it is under control.
Mowing, edging, hedge trimming, weeding, pruning, border care and seasonal tidy-ups. See our garden maintenance service page and the maintenance cost guide.
Autumn is our busiest period in SE26 for obvious reasons. If you want leaf clearance booked before the worst of it, get in touch by early October.
Want a regular gardener in Sydenham? Tell us what your garden needs and how often, and we will come back with a price and the earliest slot. Get a free quote.
Two things make clearance in SE26 different from the rest of our patch.
The gardens are long. The Victorian villas along Sydenham Hill and the roads off it often have rear gardens running to a hundred feet or more, which is unusual for London. Long gardens are rarely maintained as one space, so the far third is typically where brambles took hold while the near two thirds stayed under control.
And almost none of them have vehicle access to the rear. Everything comes back up the garden and through the house. On a hundred-foot plot that carry is a real part of the job, and we account for it in the quote rather than discovering it on the day.
£85 per hour with a two-person team, tools included. Waste charged separately at £10 per 150-litre bag or £40 per bulk bag. Photo quotes within 24 hours for most jobs.
See our garden clearance cost guide or the clearance service page.


Before/after of a garden clearance with Urban Gardeners.
The single most common thing we are called about in SE26, and the one where people have usually already spent money on the wrong fix.
A lawn under mature tree cover gets a fraction of the light it needs. The grass thins, moss moves in, and within two seasons it is more moss than lawn. People respond with more seed, more feed, more turf. None of it works while the light problem remains.
The honest options are crown lifting or thinning where the tree allows and the law permits, switching to shade-tolerant grass and accepting a thinner sward, replanting the shaded section as a woodland border, or artificial grass.
We will tell you which fits your garden rather than selling you turf that will fail. If yours is more moss than grass, the shade is the cause, not your feeding regime. Our natural vs artificial grass comparison is worth reading if you are weighing that option.
SE26 has an unusual density of protected trees and mature woodland for a residential area. Before any tree or hedge work we check whether what you are asking for needs council notice.
Work on a protected tree without consent is an offence with serious penalties. We flag anything questionable before starting, not after.
What we handle: pruning and shaping within reach, hedge reduction, small trees and saplings, clearing growth around established trees.
What we do not: felling, major crown work on mature trees, anything needing climbing or rigging, or work on a tree under a Tree Preservation Order. That is tree surgeon work.
Our guide on when to call a gardener versus a tree surgeon in SE London covers the difference and the cost gap, and how to identify the signs of a dying tree is a sensible first read if you are worried about one.
Long gardens on a slope are a genuine design opportunity and most of them are wasted.
A hundred-foot garden running downhill, left as one continuous space, reads as a corridor. Breaking it into terraced levels gives you two or three distinct areas, makes the whole thing feel wider, and solves the practical problem of gardening on a gradient at the same time.
Where the spring line runs through a plot, we design around it rather than fighting it. A wet area partway down the garden becomes a planted feature instead of the bit that never quite works.
Projects range from around £1,200 for a light refresh to £18,000 for a full transformation. Free survey, written quote within 3 business days.
See the landscaping and design service page and the landscaping cost guide.


Before/after of a landscaping project with Urban Gardeners.
We are a full-service gardening company, so you do not need to call three different tradespeople for three different jobs. Whether it is a one-off tidy-up or a full redesign, we handle it. For a full price breakdown, see our prices page.

Lawn mowing with Urban Gardeners.
Same hourly rate as maintenance. Mowing, edging, strimming, clippings collected. In SE26 the useful advice usually concerns light and leaf management rather than mowing frequency. Treatments start with a free on-site survey.


Before/after of a artificial grass project with Urban Gardeners.
Natural turf £15 to £28 per sqm including turf, labour and topsoil. Artificial grass £60 to £90 per sqm including excavation, sub-base, membrane and grass. Preparation differs sharply by where you are on the hill: thin sandy topsoil up top needs building up with organic matter, clay down in the valley needs breaking apart. In deep shade we will tell you honestly whether natural turf is realistic before you spend anything. See the turfing cost guide.
Exposure on the upper slopes is harder on fences than most of SE London, so specification matters here. Closeboard panels £260 each, standard panel fencing £230 to £280, including materials, labour, post installation and concrete setting. Storm damage repairs £150 to £300 per section. Boundary work near protected trees needs care over root disturbance, which we plan for. See the fencing cost guide, or what to do about a blown down fence.


Before/after of a jet washing cleaning with Urban Gardeners.
Shaded, damp SE26 patios green up faster than most, so this tends to be a more regular job here for £4/m², £120 minimum. See the patio cleaning price guide.


Before/after of a decking project with Urban Gardeners.
Softwood, hardwood and composite. A small softwood deck up to 12m² starts around £960 to £1,920. Decking suits sloping SE26 gardens well because it creates a level platform without major excavation. Under heavy tree cover, composite handles the damp and leaf litter better than softwood. See the decking cost guide.
Urban Gardeners is a family-run gardening team serving Sydenham SE26 and South East London, trusted by local homeowners for reliable, no-fuss garden work.
Thin sandy soil on the ridge, springs partway down, clay in the valley. We work out which you have before recommending anything, because the right answer for one is the wrong answer for the others.
Most companies will lay you a lawn wherever you ask. We will tell you when it is going to fail and why, and what to do instead.
All work by our own in-house team. The people who quote the job are the ones who do it.
Itemised before work starts. On long Sydenham gardens we account for the waste carry distance in the quote rather than adding it later.
We cover all of SE26 and the surrounding areas. If you're just outside Sydenham, we're likely already working near you.
Visit our full South East London service area page.
If you are partway down Sydenham Hill, it is almost certainly the spring line. Rainwater soaks through the permeable sand cap, hits the clay underneath and travels sideways, emerging where the two meet. Water is arriving from uphill and will keep arriving, so digging it out does not work. Willows or other water-loving plants growing where nobody planted them confirm it. The practical answer is designing around it rather than fighting it.
Usually, but the fix depends on the cause, and in SE26 it is nearly always shade rather than feeding. We can scarify out the moss, but if the light problem stays the same the moss returns within a season. A free survey tells you whether the answer is treatment, crown thinning, shade-tolerant grass or replanting that area as a border.
£83 for the first hour and £65 for each hour after, with no minimum charge. Most first visits take two to three hours. Ongoing visits can be as short as one hour once the garden is under control. Autumn visits in SE26 tend to run longer because of the leaf volume from the surrounding woodland.
£85 per hour with a two-person team, tools included. Waste is charged separately at £10 per 150-litre bag or £40 per bulk bag. Long Sydenham gardens sometimes take longer than the size suggests because everything has to be carried back up the garden and through the house, and we flag that upfront rather than adjusting on the day.
Yes, and it is one of our most requested jobs here because of Sydenham Hill Wood and the Dulwich woods along the ridge. It can be a one-off visit or built into a maintenance plan. Booking by early October usually secures a slot before the peak.
Not without the right consent in place, and neither can anyone else. We check protected status before quoting any tree or hedge work in SE26. Anything structural on a mature tree is tree surgeon work rather than gardening work, and we will say so rather than take the job.
Photo-based quotes within 24 hours for most services. Larger jobs like landscaping, turfing, fencing and decking get a free on-site survey with a written quote within 3 business days. Monday to Saturday, 9am to 6pm.

Tell us what you need and we’ll reply with a price and the earliest availability. No pressure.
Prefer to speak? Call Mon–Sat: 07760800457
Fast response. Local team. No obligation.