Greater London · England
Lewisham Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims in Lewisham, with a one-year guarantee on every job. Ask us for a quote.
- Wet patches on the wall under a gutter joint
- Open joints in fascias and soffits
- Cracked sealant along roofline trims
Gutter sealing for homes and businesses in Lewisham
We do not replace gutters, fascias or roofs. Sealant fixes joints and it can’t mend broken brackets, split sections or blocked downpipes. If you are dealing with dripping gutter ends and failed sealant on a garage door frame, we can help, whatever the surface.
Newer London blocks are built with movement joints in brick and render, and with cladding joints sealed with mastic. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Lewisham (SE13, SE8, SE6)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a few hours, depending on the number of joints and the access. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We look at the gutters, fascias and trims and agree the joints to seal.
- We clean out each joint.
- The joints are dried.
- The sealant is applied and finished.
- We check our work before we leave.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
- Move anything stored near the joints
Get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
Different surfaces, different methods
Gutter joints
Joints between gutter lengths are the most common leak point. They’re cleaned out, dried and resealed.
Roofline trims
Trims along the roofline are often finished with sealant. Split sealant lets water in.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Make sure downpipes are not blocked
- Clean out the gutters once or twice a year
- Do not lean ladders against the gutter itself
- Keep an eye out for wet patches below a joint
Give the sealant the cure time we tell you and avoid disturbing it.
Rain getting in round a garage door frame can damage what’s stored inside. Resealing the frame is a quick job.
Places near Lewisham
Also in Lewisham
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Why deal with it now?
A new garage door is not needed for a leaking frame. Sealing the frame generally stops it. In a flat in Lewisham, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why us?
- We never seal over old sealant
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
- 20+ years of sealant experience
What affects the quote in Lewisham
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- How easy the joints are to reach
- The number and length of the joints
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, please include:
- The rough size of the job
- Any access issues, like height or stairs
- What’s wrong with the joints now
- Pictures of the joints, sent by email
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or drop us an email.
Lewisham: your questions answered
Can you help a landlord with a rental near Lewisham station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is parking a problem for a job in Lewisham?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
How do I get a quote for gutter sealing in Lewisham?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Will sealing fix a sagging gutter?
Sealant will not hold a sagging gutter. A gutter installer needs to refix it.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Blocked downpipes
- A gutter length that has split
- Rotten or damaged fascia boards
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Lewisham
- Gutter joints
- Gutter end caps
- uPVC fascias
- Soffit joints
- Garage door frames
- Roofline trims
What gutter sealing looks like in Lewisham
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Queen's House (about 1.4 miles north) nearby, there’s older building stock in the area around Lewisham as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around St Stephen's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Lewisham station, leaking gutter joints on a rental are best caught before they stain the walls. Managing a site like St Saviour's Catholic Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Lewisham is about 3 miles west of Eltham, in Greater London. Jobs in Lewisham get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 764 towns and villages across Greater London, from the larger towns to small villages.
We cover every part of SE13, SE8 and SE6 for gutter sealing. Whether your property is on Station Road, Lewisham High Street and Lewis Grove or anywhere close by, we can help. Lewisham is on the B220, which makes it straightforward to reach. Other places close to Lewisham include Ladywell (1 mile south-west), St Johns (1 mile north-west), Hither Green (1 mile south-east), Blackheath (1 mile north-east) and Lee (1 mile south-east). Larger places within reach include London (4 miles north-west), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (9 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).
Landmarks near Lewisham
In Lewisham, that means homes and buildings near St Joseph's Academy, Ladywell Fields and The Watch House and the streets around them. Lewisham has its own railway station: Lewisham station. Nearby you’ll also find Greenwich Castle (1.2 miles north) and Fan Museum (1.2 miles north). Open spaces near Lewisham include Knight's Hill and Brookmill Road Local Nature Reserve.