Greater London · England
Gutter, fascia & soffit sealing in Merton, Greater London
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims in Merton, with a one-year guarantee on every job. Ask us for a quote.
- Failed sealant on a garage door frame
- Open joints in fascias and soffits
- Trim joints where the sealant has failed
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Gutter sealing for homes and businesses in Merton
We don’t replace gutters, fascias or roofs. What sealant does is close joints; it will not fix a broken bracket, a cracked section or a blocked downpipe. If you’re dealing with streaks down the brickwork from a leaking joint and failed sealant on a garage door frame, we can put it right, whatever the surface.
In London terraces and converted houses, gutters and walls are often shared with the house next door, so one failed joint can cause damp for more than one household. In a converted house in Merton, it’s worth checking who is responsible for the outside before booking.
All our work comes with our one-year guarantee, wherever you are in Greater London.
- Place
- Merton (SW19)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Gutter end caps
End caps take the pressure of water running along the gutter. A failed seal makes them leak.
Garage door frames
Failed sealant around a garage door frame lets water in. We cut it out and reseal.
Also in Merton
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Look for streaks or damp on the wall below gutters
- Don’t lean ladders against the gutter itself
- Clean out the gutters once or twice a year
- Check fascia and soffit joints for gaps
Make sure downpipes aren’t blocked, so water can get away. Blockages push water back along the gutter.
If an end cap is dripping, deal with it before winter. Water down the wall all winter can cause damp inside.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes an hour or two for a few joints, longer for a full run. In Merton, flats, stairs and shared entrances are part of the routine. 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.
Preparing for the visit
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
Advice
Why deal with it now?
If the problem is a blocked downpipe, sealing will not help. We check the cause first and tell you if something else is needed. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why book with us
- We never seal over old sealant
- Arbo and Everbuild products
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or what customers say.
Merton: your questions answered
Is parking an issue for gutter sealing in Merton?
Parking in Merton, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Do you work for landlords with property near Haydons Road station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
What guarantee comes with the job?
You get our one-year guarantee to all our work.
Do you offer different sealant colours?
In most cases you can choose. We will explain which colours are available and agree one before we start.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can you reach high gutters?
Low gutters are simple to reach. If it’s higher up, let us know and we will confirm the access.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
What does gutter sealing cost?
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.
Outside joints around Merton
Historic houses like Southside House (about 1.8 miles west) are a reminder that the area around Merton has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St John The Divine, an extension built onto an older house moves differently, and the joint between them takes the strain. If you let a flat or house near Haydons Road station, leaking gutter joints on a rental are best caught before they stain the walls.
Merton is about 1 mile south-east of Wimbledon, in Greater London. Jobs in Merton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Merton is one of 764 places in Greater London where we work. London is on our list too, about 7 miles from Merton.
Here we cover the SW19 postcode area for gutter sealing. Whether your property is on High Path, Pincott Road and Hayward Close or anywhere close by, our applicators can take on the job. Merton is on the A24, so it’s easy for us to get to. If you are just outside Merton, we cover Merton Abbey (1 mile east), South Wimbledon (1 mile north-west), Colliers Wood (1 mile east), Tooting Bec (1 mile north-east) and Summerstown (1 mile north). Within a short drive, we also cover London (7 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north) and Shoreditch (9 miles north-east).
Landmarks near Merton
Typical jobs here are in homes near The Nelson Arms, Wimbledon School of Art and Wandle Park and the streets around them. The closest station to Merton is Haydons Road station, about 0.8 miles north of the centre. Other landmarks nearby include Southside Wandsworth (2.8 miles north) and St George's Hospital (1.1 miles north-east). The countryside around Merton includes Henman Hill and Merton Park Green Walks.
Landlords, agents and businesses in Merton
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
Letting agents and landlords in Merton can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Signs you need gutter sealing in Merton
Debris in the gutter keeps water sitting at the joints. Standing water finds the weakest joint and drips through.
Look out for any of the following:
- Wet patches on the wall under a gutter joint
- Open joints in fascias and soffits
- Cracked sealant along roofline trims
- Garage door frames letting rain in
If you look after a building such as Merton Abbey Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Before booking anyone
- How much experience the applicator has
- What product goes in the joint
- How the joint is cleaned and prepared
- The length of the guarantee