Greater London · England
External & façade joints in Euston, Greater London
Movement joints in Euston need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
About our external mastic in Euston
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. Typical jobs include gaps where render, brick and frames meet and panel joints letting water in, across façade panels, concrete & block and brickwork movement joints.
Outside work in London starts with access: side passages, upper floors and where to park. In Euston, joints up high may need ladders or other access, which is worth talking through when you book.
Whatever the size of the job, it’s backed by our 12-month guarantee in Euston and across Greater London.
- Place
- Euston (NW1W, W1T, NW1)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
So the new joints stay in good condition:
- Get split or bare joints resealed while the damage is small
- Deal with leaking gutters that soak the joints below
- Do not let climbing plants root in the sealant
- Keep high-pressure jets off the joints
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.
Places near Euston
What else we do in Euston
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Cracked brickwork or render that needs a builder or plasterer
- Render that’s blown, hollow or coming away
- Walls that need new movement joints cut into them
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Euston
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Façade panels
- Copings & trims
Why deal with it now?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. 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 Euston.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
- You choose the colour before work begins
- Sealant colour chosen to suit
Take a look at what affects the cost or our reviews.
The process
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job normally takes a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Euston. It helps if you can point us to a visitor permit or a bay close to the door.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- 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.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
Read more
Common questions in Euston
Can you do external mastic in Euston?
Yes. We work across London and the South East, and Euston is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
I let a flat near London Euston station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Do you use backing rod?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working. A flexible sealant is the right fill.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
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.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking.
What the job involves on each surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Outside joints around Euston
London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
As a London address, Euston can be tricky for parking: let us know about parking bays, permits or a driveway. Letting a property close to London Euston station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Euston is about 1 mile west of St Pancras, in Greater London. For external mastic in and around Euston, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base. Euston is one of 764 towns and villages in Greater London where we work for external mastic.
Work in NW1W, W1T and NW1 is quoted and booked the same way as anywhere else. External mastic is available to properties on Euston Road, Duke's Road and Phoenix Road and the roads around them. Being close to the A501 and A4200, Euston is simple for us to get to for external mastic. Other places close to Euston include Somers Town (1 mile north), Fitzrovia (1 mile south-west), Bloomsbury (1 mile south-east), Kings Cross (1 mile north-east) and St Pancras (1 mile east). Further out, we also cover London (3 miles south-east), Kensington (4 miles south-west), Walthamstow (6 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).
What’s near Euston
Typical jobs here are in homes near Lewis Cubitt Park, The Doric Arch pub and Maria Fidelis Catholic School FCJ and the streets around them. Also close by are St Aloysius Catholic Primary School (less than half a mile north) and Wellcome Collection (under half a mile south-west). Euston has its own railway station: London Euston station. Well-known places in the area include Brunswick Centre (within half a mile south-east) and Wellcome Collection (less than half a mile south-west). Open spaces near Euston include Primrose Hill and St. James's Park Lake.
Quotes for external mastic in Euston
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- Working hours on commercial sites
- The old material and how stubborn it is
- Which sealant suits the joint
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Whether it’s a home or a business
- If someone has resealed it before
Quotes start with a quick conversation. 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 email us.
What we are called out for in Euston
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The problems people generally mention when they call include:
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Joints where the bead has come unstuck
Homes close to St Pancras New Church include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- Whether they seal over old material or remove it
- Who turns up on the day
- Is VAT in the price?
- What product goes in the joint