Kent · England
East Langdon External Mastic
We cover East Langdon for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Movement joints filled with mortar instead of sealant
- Leaking joints around cladding and façade panels
- Weeds or debris growing in open joints
External mastic in East Langdon, done properly
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. Typical jobs include movement joints filled with mortar instead of sealant and failed sealant between panels on a façade, across copings & trims, façade panels and concrete & block.
External sealant needs dry, clean surfaces, so work around East Langdon is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- East Langdon (CT15)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in East Langdon
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Keep an eye out for any of the following:
- Joints with sealant missing in places
- Gaps where render, brick and frames meet
- Hard, crazed mastic that has stopped moving
- Rigid filler in a joint that should flex
For an older house near a landmark such as Church of St Augustine, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before you book anyone
- Which colour the sealant will be
- Which sealant they’ll use, and why
- What the cure time is
- What guarantee comes with the work
What we do, step by step
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like East Langdon 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 start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Mention if the joints have been sealed before
- Mention any tricky access
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and send you a clear quote.
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Should I try it myself first?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
East Langdon buildings and the weather
East Langdon is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Walmer Castle (about 3.7 miles north-east) are a reminder that the area around East Langdon has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Martin Mill station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Langdon Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
East Langdon is about 3 miles north-east of Dover, in Kent. Jobs in East Langdon get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. 922 places in Kent are on our list, large and small. There’s also a page for Chelmsford, roughly 54 miles from East Langdon.
Work in CT15 is quoted and booked the same way as anywhere else. You will find streets such as The Street, Guston Road and Waldershare Lane. Neighbouring places we cover for external mastic include Martin Mill (1 mile east), Martin (1 mile north-east), Guston (1 mile south-west), West Langdon (1 mile north-west) and West Cliffe (1 mile south-east). We also work in nearby towns such as Canterbury (13 miles north-west), Margate (15 miles north), Dover (3 miles south-west), Folkestone (9 miles south-west), Ramsgate (12 miles north) and Broadstairs (14 miles north).
Around East Langdon
Around East Langdon, our work takes us to homes and buildings near The Lantern Inn and Duke of York's Royal Military School, among other places. The closest station to East Langdon is Martin Mill station, about 0.6 miles north-east. Well-known places in the area include Dover Transport Museum (2.3 miles south-west) and Dover Castle (2.7 miles south). For a walk, there’s Dover Western Heights.
Surface by surface
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible in all weathers.
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it.
Aftercare tips
Looking after new joints is easy:
- Have failed joints looked at early
- Avoid pressure-washing directly into sealant joints
- Tell anyone working on the walls about the movement joints
- Leave the joints unpainted unless we’ve said otherwise
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Honest limits
In fairness, some problems need a different trade:
- Cracking across the wall rather than at a joint
- Damp that isn’t coming from the joint
- Walls that need new movement joints cut into them
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in East Langdon
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
- Copings & trims
- Joints between brick and frames
Nearby places to East Langdon
Other services in East Langdon
How we quote for external mastic
There’s no set price list. The quote depends on:
- The type of sealant required
- Whether the work is at height
- Any working-time requirements on site
- The old material and how stubborn it is
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
To help us quote quickly, let us know:
- The address or postcode of the job
- Roughly how big the job is
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
For external mastic in East Langdon, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
FAQs for East Langdon
I let a flat near Martin Mill station. Can you help?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Does living near the coast affect external mastic in East Langdon?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you guarantee your work?
Yes. Each job is guaranteed for twelve months.
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 the wall may crack nearby. We will reseal it with a flexible sealant.
How do I get a quote for external mastic in East Langdon?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Why do you put foam in the joint first?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.