Greater London · England
Dulwich Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for householders, landlords and businesses in Dulwich. Fully insured, ARBOMaster approved and guaranteed for a year.
- Garage door frames letting rain in
- Streaks down the brickwork from a leaking joint
- Earlier gutter repairs that have peeled off
What we do, step by step
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the job takes anything from an hour or two to a few hours in most cases. In a London area like Dulwich, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We start by tracing the leak and checking the gutter itself is sound.
- We clean out the joint and take out the old sealant.
- We make sure the joint is dry before sealing.
- We seal the joint with a sealant made for gutters and outdoor use.
- We look along the gutter and clear debris around the joints.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
Ask for a quote
Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Advice
Gutter sealing in Dulwich
A lot of gutter leaks come down to one tired joint. The joint is cleaned, dried and resealed with a sealant made for guttering. If the gutter is broken or sagging, we’ll tell you. Common call-outs are for fascia boards with gaps between them and dripping gutter ends, across gutter joints, garage door frames and uPVC fascias.
Outside work in London starts with access: side passages, upper floors and where to park. For a home in Dulwich, tell us how high the joints are and how to reach the back of the building.
Our work is backed for twelve months.
- Where
- Dulwich (SE22, SE21, SE23)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Make sure downpipes aren’t blocked
- Look along the fascias for open joints
- Do not leave a sagging gutter
- Deal with a drip before winter
Give the sealant the cure time we tell you before poking or cleaning near it.
A drip from a gutter joint won’t stop on its own. The same spot gets soaked every time it rains, which can lead to staining and damp.
Dulwich buildings and the weather
With historic houses such as Kingswood House (about 1.1 miles south) nearby, there’s older building stock in the area around Dulwich as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
Managing a site like St Anthony's Catholic Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. Dulwich is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Dulwich is about 1 mile south-east of Herne Hill, in Greater London. Jobs in Dulwich get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 764 towns and villages across Greater London.
Jobs for gutter sealing in SE22, SE21 and SE23 works the same way as everywhere else we cover. Whether your property is on Court Lane, Druce Road and Boxall Road or anywhere close by, we can help. Dulwich sits on or near the A2216. Other places close to Dulwich include Dulwich Village (1 mile north-west), West Dulwich (1 mile south), Herne Hill (1 mile north-west), Sydenham Hill (1 mile south-east) and Forest Hill (1 mile east). Larger places within reach include London (4 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (6 miles north) and Shoreditch (6 miles north).
Landmarks near Dulwich
Around Dulwich, our work takes us to homes and buildings near The Crown and Greyhound pub, Dulwich Park and Alleyn's School and the streets around them. Dulwich’s nearest station is West Dulwich station, roughly 0.7 miles south-west of the centre. Well-known places in the area include Dulwich Community Hospital (0.9 miles north) and Greenwich Castle (4 miles north-east). Not far away are Knight's Hill and Centre for Wildlife Gardening.
What affects the cost of gutter sealing
Every job gets its own quote. These are the things that affect it:
- Working hours on commercial sites
- Any mould that needs treating
- How much there is to do
- How easy the joints are to reach
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- If someone has resealed it before
- Photos by email, if that is easy
- What’s wrong with the joints now
- Where the job is, and your postcode
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
Common questions in Dulwich
Is Dulwich in your area for gutter sealing?
Yes. We work across London and the South East, and Dulwich is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Is parking an issue for gutter sealing in Dulwich?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels across Greater London.
Do you install new fascias or gutters?
Replacement isn’t our trade. If a gutter is broken or sagging, we’ll tell you.
Where are you based?
We work from Crawley. We cover Dulwich and the rest of Greater London.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
What we’re called out for in Dulwich
Stop ends take pressure from water running along the gutter. If the seal fails, water escapes at the end and runs down the wall.
Look out for any of the following:
- Earlier gutter repairs that have peeled off
- Failed sealant on a garage door frame
- Cracked sealant along roofline trims
- Damp patches inside below a leaking gutter
In the older streets around Christ's Chapel of God's Gift, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Comparing quotes
- Whether the sealant suits the joint
- What happens if they find a problem under the old sealant
- Who does the work, and how experienced they are
- Is VAT in the price?
Towns and villages near Dulwich
Other services in Dulwich
Why act early in Dulwich
If the problem is a blocked downpipe, sealing will not help. We check the cause first and point you to the right trade if needed. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in Dulwich.
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why book with us
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
- Over 20 years’ experience
Take a look at how sealant jobs are priced and our reviews.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Gutters that have dropped or pulled away
- Water backing up from a blocked pipe
- A gutter length that has split
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before booking.
Surfaces we seal
- Gutter joints
- Garage door frames
- uPVC fascias
- Roofline trims
- Gutter end caps
- Soffit joints