Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Harrow's a mix of leafy suburban streets, from the big Victorian and Edwardian houses around Harrow on the Hill to newer estates near Pinner and Stanmore, and that means plenty of mature gardens with oaks, sycamores and conifers that need regular attention. Many properties back onto the Green Belt or sit close to protected woodland areas, so tree work here often involves Tree Preservation Orders or conservation area rules that don't apply everywhere else. A decent tree surgeon working in this postcode area needs to know when a felling licence or council permission is required before touching a chainsaw, not just how to climb.
The businesses listed on this page come from public business listings, ranked mainly by their review rating and how many reviews they've built up, with a small boost given to those showing a working website and phone number. We read through each business's homepage to check that tree surgery is genuinely their main line of work, which stops general gardeners or landscapers who occasionally trim a hedge from cluttering up the results. Listings that have been flagged as permanently closed get removed automatically, so you shouldn't end up ringing a number that's dead. Where you spot a Trust Verified badge next to a business, that firm has gone through our fuller check, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company details. Our How We Verify page sets out exactly what that involves. For any business without the badge, those checks haven't been done by us, so it's down to you to ask before booking.
Before you commit to any tree surgeon, ask to see proof of public liability insurance and, if the work involves a protected tree, check with Harrow Council's planning department whether a Tree Preservation Order applies. A reputable firm should hold a recognised qualification such as NPTC certificates for chainsaw use and climbing, and be happy to show you evidence rather than just say so over the phone. Get at least two or three written quotes for anything beyond a small prune, since prices for felling a large tree can vary by hundreds of pounds depending on access, waste disposal and whether stump grinding is included. It's also worth asking who's actually going to be on site doing the work, since some larger firms subcontract climbers.
How We Select & Rate The Best Tree Surgeons in Harrow
Rankings are based on review rating and review count pulled from public business listings, with a small lift given to businesses that show a working website and phone number. We check each business's homepage to confirm tree surgery is their primary trade, and listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone further, passing our full verification covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information; see our How We Verify page for the complete list. Other businesses shown here haven't been independently verified by us, and their inclusion isn't an endorsement. Always carry out your own checks before hiring anyone.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Harrow and the surrounding HA postcodes fall within reach of GreenLine Property & Tree Services, covering felling, pruning and general tree maintenance. Thirty-nine reviews have left it with a full five-star average, a reflection of consistent, tidy work across residential gardens in the area.
Rated 5.0 stars across verified reviews, G & R Tree Surgeons operates out of Harrow and carries a consistent record of satisfied clients. The company covers a range of arboricultural work, from pruning and crown reduction to tree removal. Its postcode, EN8 9SH, suggests it serves both Harrow and the surrounding Hertfordshire borders.
Harrow and the surrounding HA8 area are served by LookDeVis Services, covering tree surgery from pruning to removal. A 4.9 rating from 87 reviews points to consistent, careful work across the neighbourhood's gardens, whatever the scale of the job.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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A straightforward crown reduction or light pruning job on a medium tree might run from around £150 to £350, while felling a large tree with difficult access could go well over £1,000 once you factor in waste removal and stump grinding. Stump removal alone typically costs £80 to £250 depending on the size and root spread. Prices vary a lot based on tree height, proximity to sheds, fences or power lines, and whether the wood needs to be hauled out by hand. Getting two or three quotes for anything beyond basic pruning is standard practice and worth the extra half hour it takes.
Do I need permission to remove or prune a tree in Harrow?
Possibly, yes. Harrow has areas covered by Tree Preservation Orders and several conservation areas, particularly around Harrow on the Hill and Pinner, where even routine pruning on certain species needs council sign-off. Check with Harrow Council's planning department or ask your tree surgeon to check on your behalf before any work starts, since unauthorised work on a protected tree can lead to a substantial fine.
What qualifications should a tree surgeon have?
Look for NPTC or Lantra certificates covering chainsaw operation, aerial rescue and climbing, since these are the industry-standard qualifications for safe tree work at height. Membership of a body such as the Arboricultural Association is a good sign too, though it's not compulsory. Ask to see certificates rather than taking someone's word for it, and don't be afraid to request the certificate numbers so you can check them independently.
How long does tree surgery work usually take?
A single tree prune or small felling job can often be completed within a day, sometimes half a day if access is good and there's not much wood to remove. Larger jobs involving multiple trees, stump grinding, or difficult access using cranes or rigging can stretch to two or three days. Ask for a rough timeframe in the quote so you know what to expect, particularly if scaffolding or road closures are involved.
Will a tree surgeon clear away the waste?
Most will, but it's not always included as standard, so check this before agreeing to a price. Some firms charge extra for hauling away branches and logs, or leave logs behind if you ask them to for firewood. If you want the stump ground down and the area tidied afterwards, mention this upfront since it affects the quote significantly.
How do I choose between tree surgeons in Harrow?
Start by reading through recent reviews rather than just the overall star rating, since patterns in feedback about punctuality or tidiness tell you more than a number alone. Ask each firm for proof of public liability insurance and their NPTC or equivalent certificates, and don't be shy about asking for the certificate numbers to check them yourself. Get written quotes from at least two or three tree surgeons for anything beyond minor pruning, and ask specifically whether waste removal and stump grinding are included in the price. If a business has a Trust Verified badge on this page, that means it's passed a fuller check on qualifications, insurance and trading history, but for anyone without it, doing your own checks before you sign anything is the safest approach.
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