Surrey · England
External & façade joints in Langley Vale, Surrey
Our applicators work in Langley Vale on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Joints where the bead has come unstuck
- Damp patches traced to an open external joint
- Failed seals between different materials
Looking after it afterwards
To keep the joints looking good and working properly:
- Never let anyone fill a movement joint with mortar
- Walk round the building once a year and look at the joints
- Tell anyone working on the walls about the movement joints
- Keep soil, plants and ivy away from the joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
About our external mastic in Langley Vale
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. If you have hard, crazed mastic that has stopped moving and failed sealant between panels on a façade, we can put it right.
Older homes in small places like Langley Vale may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
There’s a 12-month guarantee on every job.
- Place
- Langley Vale (KT18)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Langley Vale
More services for Langley Vale
Langley Vale questions
Do you cover smaller places like Langley Vale?
Yes, Langley Vale is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Langley Vale in your area for external mastic?
Yes, Langley Vale is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose and can lead to cracking. We will reseal it with a flexible sealant.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
What should I tell you?
A short description and the location, with photos by email if possible. We’ll ask anything else we need to know.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams in Langley Vale and across Surrey. Several sites can be quoted together.
DIY versus a professional finish
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, then guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What happens on the day
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. Somewhere like Langley Vale needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
When to call us in Langley Vale
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
Signs it’s time to call us include:
- Rain getting behind render or cladding at a joint
- Joints where the bead has come unstuck
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
Rented homes near Tattenham Corner station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Is VAT in the price?
- Who does the work, and how experienced they are
- How hidden problems are handled
- What guarantee comes with the work
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Render that is blown, hollow or coming away
- Damp that is not coming from the joint
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Concrete & block
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
What happens if it’s left?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Around Langley Vale, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Langley Vale
- Arbo and Everbuild products
- Colour picked to suit the job
- A choice of colours where the product allows
- You choose the colour before work begins
Read how sealant jobs are priced and our reviews.
Langley Vale buildings and the weather
Historic houses like Fitznells Manor (about 3.2 miles north) are a reminder that the area around Langley Vale has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like The Vale Primary School? Then its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near St Stephen On The Downs, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Langley Vale is about 2 miles east of Ashtead, in Surrey. If you need external mastic in Langley Vale, please phone 0345 464 0079 or email us for a quick quote. We cover Surrey from our Crawley base, Langley Vale included. Across Surrey, we cover 395 places, Langley Vale among them. You can also see our page for Crawley, roughly 14 miles from Langley Vale.
We work across the KT18 postcode area for external mastic and the streets around it. External mastic is available to properties on Grosvenor Road, Harding Road and Rosebery Road and the roads around them. Other places close to Langley Vale include Tattenham Corner (1 mile east), Great Burgh (1 mile east), Epsom Downs (1 mile north-east), Burgh Heath (2 miles east) and Epsom (2 miles north). Within a short drive, we also cover Guildford (14 miles west), Woking (13 miles west), Horley (10 miles south-east), Redhill (6 miles south-east), Ewell (3 miles north) and Egham (15 miles north-west).
Near you in Langley Vale
In Langley Vale, that means homes and buildings near Ashtead Park, Derby Arms and Rosebery School. The nearest railway station is Tattenham Corner station, about 1 mile east. A little further out are Headley Court (1.1 miles south-west) and Walton on the Hill (1.8 miles south). Green spaces nearby include Cuddington Meadows and Colley Hill.