Kent · England
Eythorne External Mastic
Professional external mastic in and around Eythorne, with old sealant always removed completely and a 12-month guarantee.
- Leaking joints around cladding and façade panels
- Water getting into walls through failed joints
- Old sealant gone brittle and cracked
How we handle external mastic in Eythorne
On houses, flats and commercial buildings across Eythorne, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. Typical jobs include weeds or debris growing in open joints and joints pointed up with cement by mistake, on concrete & block, façade panels and render & cladding joints.
Around Eythorne, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
We stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.
- Place
- Eythorne (CT15)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Walls and rooflines in Eythorne
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Goodnestone Park (about 3.6 miles north-west) nearby, there’s older building stock in the area around Eythorne as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around Church of St Peter and St Paul, an extension built onto an older house moves differently, and the joint between them takes the strain. If you look after a building such as Eythorne Elvington Community Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Eythorne is about 4 miles north of Dover, in Kent. For external mastic in and around Eythorne, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Kent. Across Kent, we cover 922 places, Eythorne among them. There’s also a page for Chelmsford, about 50 miles away.
Postcode districts we cover here for external mastic: CT15. If you need external mastic at a property on The Street, Sandwich Road and New Road or anywhere close by, our applicators can take on the job. Other places close to Eythorne include Waldershare (1 mile south-west), Sibertswold (2 miles south-west), Coldred (2 miles south-west), Halfway Street (2 miles south-west) and Lydden (3 miles south-west). Larger places within reach include Canterbury (10 miles north-west), Margate (14 miles north), Dover (4 miles south), Folkestone (9 miles south-west), Ramsgate (11 miles north-east) and Broadstairs (13 miles north-east).
Local landmarks in Eythorne
We work in homes and buildings around The White Horse pub, among other places. The nearest railway station is Shepherds Well station, about 1.8 miles west. Other landmarks nearby include Dover Transport Museum (3.5 miles south) and Buckland Hospital (4.7 miles south).
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Look over the joints every year, ideally after winter
- Leave the joints unpainted unless we have said otherwise
- Don’t let climbing plants root in the sealant
- Point out the joints to other trades
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.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
Also near Eythorne
Other services in Eythorne
What affects the quote in Eythorne
The quote reflects the job in front of us. We take into account:
- The amount of work
- Which sealant suits the joint
- The old material and how stubborn it is
- Any working-time requirements on site
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Any previous sealing or DIY work
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
Landlord and commercial work in Eythorne
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Your questions about external mastic in Eythorne
Can you help a landlord with a rental near Shepherds Well station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Eythorne?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
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 reseal when it splits.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
How long before the joint can be used?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses.
Common problems we fix in Eythorne
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, so it pulls away from the edges.
These are the problems we are asked about most:
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Joints with sealant missing in places
- Damp patches traced to an open external joint
If you let a flat or house near Shepherds Well station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Whether they’re fully insured
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- How long to leave it before use
How the visit works
Before we leave, we go over the finished joints with you. The visit itself normally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. For a village or hamlet like Eythorne, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided 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.
- 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
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.
Advice
Surface by 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.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.