Greater London · England
External & façade joints in Ealing, Greater London
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Ealing. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weathered mastic that no longer stretches
- Joints pointed up with cement by mistake
- Cracked joints where brick meets render or frames
External mastic for homes and businesses in Ealing
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We work on render & cladding joints, copings & trims and joints between brick and frames, and people most often call us about failed sealant between panels on a façade and movement joints with cracked, split or missing sealant.
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. For a flat in Ealing, check the lease for who looks after the outside.
We stand behind the work with a 12-month guarantee, so you’re covered after we have gone.
- Location
- Ealing (W5, W13, W3, NW10)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for external mastic in Ealing
There’s no set price list, because jobs vary so much. What we look at:
- The number of rooms or windows
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- The rough size of the job
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Do you need external mastic in Ealing?
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Look out for any of the following:
- Water getting into walls through failed joints
- Sealant pulling away from one side of the joint
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
If you look after a building such as Ealing Independent College, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- Whether they seal over old material or remove it
- Who turns up on the day
- How the colour is chosen
- How the surfaces are prepared before sealing
Can I do it myself?
If you are 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.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Why it’s worth doing now in Ealing
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Ealing, the repair is bigger than a sealant job.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts, so you know where you stand.
Why us?
- Anti-fungal silicone where joints get wet
- We are fully insured
- More than 20 years in sealant work
- Arbo and Everbuild products
See our cost guide or what customers say.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
How to get a quote
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
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Ealing questions
Do you cover Ealing for external mastic?
Yes, Ealing is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
I let a flat near Ealing Broadway station. Can you help?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
When is the sealant fully cured?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. We choose one that suits both surfaces.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working. A flexible sealant is the right fill.
How do you reach high-level joints?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we will confirm what access is needed.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
Walls and rooflines in Ealing
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. In terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts.
For landlords with property near Ealing Broadway station, outside joints that have cracked can let damp into a rental, so check them between lets. As a London address, Ealing can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Ealing is about 7 miles west of City of Westminster, in Greater London. Our applicators cover external mastic for homes and businesses in Ealing and the surrounding area, as part of our work across Greater London. We cover 764 towns and villages across Greater London, from the larger towns to small villages. You can also see our page for London, about 9 miles away.
All of W5, W13, W3 and NW10 is within our area for external mastic. Whether your property is on High Street, Coleridge Square and Station Road or a nearby road, we can help. Ealing sits on or near the A40 and B452, so getting to you is simple. If you’re just outside Ealing, we cover South Ealing (1 mile south), Pitshanger (1 mile north), Brentham Garden Suburb (1 mile north), Hanwell (1 mile west) and West Ealing (1 mile west). Further out, we also cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Landmarks near Ealing
Around Ealing, our work takes us to homes and buildings near The Red Lion pub, Christ the Saviour Church of England Primary School and Great Ealing School. Nearby too are Walpole Park (under half a mile north-east) and Library for Iranian Studies (1.5 miles east). The nearest railway station is Ealing Broadway station, about 0.5 miles north-east of the centre. Other landmarks nearby include London Designer Outlet (3.3 miles north) and Gunnersbury Park House - Large Mansion (1.2 miles south-east). Green spaces nearby include Castlebar Hill and Middle Lake.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Places near Ealing
Other services in Ealing
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Fix overflowing gutters above sealed joints
- Keep soil, plants and ivy away from the joints
- Check the sealant is paintable before painting near it
- Keep high-pressure jets off the joints
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.