Greater London · England
Hurlingham External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Hurlingham, with a 12-month guarantee on every job. Ask us for a quote.
- Joints with sealant missing in places
- Plants rooting in failed movement joints
- Sealant pulling away from one side of the joint
Quotes for external mastic in Hurlingham
We quote each job individually. These are the things that affect it:
- Mould in or behind the old joints
- Access and height
- The old material and how stubborn it is
- How much there is to do
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- What’s wrong with the joints now
- A few photos by email, if you can
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
External mastic in Hurlingham, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. If you have joints pointed up with cement by mistake and weeds or debris growing in open joints, we can help, whatever the surface.
Outside work in London starts with access: side passages, upper floors and where to park. In Hurlingham, joints up high may need ladders or other access, which is worth talking through when you book.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Location
- Hurlingham (SW6, SW18, SW15)
- Region
- Greater London
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Keep water from gutters off the wall
- Clear growth from the base of walls and joints
- Show decorators and builders where the movement joints are
- Act on the first splits you see
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.
Once a joint can’t move, the wall finds another way, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Landlord and commercial work in Hurlingham
We also work for property managers and facilities teams in Hurlingham and across Greater London. We can quote a run of properties together, and we are fully insured.
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.
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. 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.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
Get a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
Hurlingham questions
Is Hurlingham in your area for external mastic?
Yes. We work across London and the South East, and Hurlingham is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Do you work for landlords with property near Imperial Wharf station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we will do them. Give us some details and we’ll confirm the access.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Are you fully insured?
Yes. We’re fully insured.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before we start from the range available.
Also near Hurlingham
Other services in Hurlingham
Walls and rooflines in Hurlingham
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
Schools such as Sulivan Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. As a London address, Hurlingham can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Hurlingham is about 2 miles south of Kensington, in Greater London. For external mastic in and around Hurlingham, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We’re based in Crawley and cover Greater London, Hurlingham included. Hurlingham is one of 764 places in Greater London we cover.
Our applicators cover all of SW6, SW18 and SW15 for external mastic and the streets around it. Whether your property is on Buer Road, Ewald Road and Dolby Road or anywhere close by, our applicators can take on the job. With the A304 close by, Hurlingham is simple for us to get to for external mastic. Other places close to Hurlingham include Parsons Green (1 mile north), Walham Green (1 mile north-east), Chelsea Harbour (1 mile east), Sands End (1 mile east) and West Brompton (1 mile north). Larger places within reach include London (5 miles north-east), City of Westminster (4 miles north-east), Marylebone (4 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (11 miles north-east).
Around Hurlingham
Locally, jobs take us to homes and businesses close to Duke of Cumberland pub, Queensmill School and Lady Margaret School, among other places. For rail, the closest station is Imperial Wharf station, about 0.8 miles east. A little further out are Putney Exchange (0.9 miles south-west) and Chelsea Stadium Tour And Museum (0.8 miles north-east). For a walk, there’s Battersea Park Lake and WWT London Wetland Centre.
When to call us in Hurlingham
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Most people get in touch after spotting one of these:
- Moss and dirt in joints with no sealant left
- Weathered mastic that no longer stretches
- Sealant pulling away from one side of the joint
- Damp patches traced to an open external joint
Homes close to St Dionis include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before booking anyone
- Are they insured?
- How the surfaces are prepared before sealing
- When the joint can take water or movement
- How long the guarantee is
Honest limits
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Adding movement joints to masonry that has none
- Movement that’s more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, ring 0345 464 0079 or email us and we will say what we think before you book.
Surfaces we seal
- Joints between brick and frames
- Façade panels
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints