Kent · England
External Mastic in Manston
Specialist external mastic for Manston: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Hard, crazed mastic that has stopped moving
- Joints where the bead has come unstuck
- Moss and dirt in joints with no sealant left
The process
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to several days, depending on the building from start to finish. For a village or hamlet like Manston, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
External mastic for homes and businesses in Manston
A movement joint is a deliberate break that lets a wall expand and contract. 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. We work on joints between brick and frames, render & cladding joints and concrete & block, and common reasons people get in touch are moss and dirt in joints with no sealant left and failed sealant between panels on a façade.
Around Manston, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.
Every job is covered by a one-year guarantee, wherever you are in Kent.
- Place
- Manston (CT12)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in Manston
Manston is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as St. Catherine's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Newington Community Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Letting a property close to Thanet Parkway station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Manston is about 2 miles west of Ramsgate, in Kent. Whether you’re in the middle of Manston or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Manston is one of 922 towns and villages in Kent where we work. For nearby work, see our Chelmsford page.
Here we cover the CT12 postcode area for external mastic. That includes homes and businesses on High Street, The Meadows and Manston Road. If you are just outside Manston, we cover Haine (1 mile north-east), Flete (1 mile north), Newington (1 mile east), Cliffs End (1 mile south) and Chilton (1 mile south-east). We also work in nearby towns such as Canterbury (13 miles west), Dover (15 miles south), Broadstairs (3 miles east), Whitstable (15 miles west), Deal (9 miles south) and Herne Bay (10 miles west).
What’s near Manston
In Manston, that means homes and buildings near Lord of the Manor pub, Sandwich and Pegwell Bay and The Royal Harbour Academy and the streets around them. The nearest railway station is Thanet Parkway station, roughly 1.2 miles south. Nearby you’ll also find Spitfire and Hurricane Memorial Museum (0.9 miles west) and Ramsgate General Hospital (2.1 miles south-east). For a walk, there’s Sandwich and Pegwell Bay.
More services for Manston
Your questions about external mastic in Manston
Is external mastic in a coastal place like Manston any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Will you come out to Manston?
Yes. Manston is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
How do you reach high-level joints?
It depends on the height and the site. Ground-floor joints are simple; for higher work, tell us about the building and we’ll confirm what’s needed.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
How long does the job take?
As a guide, most jobs take anything from a few hours to several days, depending on the building. Bigger jobs take longer.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What happens if it’s left?
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way. Around Manston, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Manston
- White, clear, grey or another colour, product permitting
- Sealant colour chosen to suit
- We leave the area clean and tidy
- ARBOMaster approved applicator
See our cost guide and what customers say.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What we can’t put right
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Cracking across the wall rather than at a joint
- Failed render or damaged cladding panels
- Subsidence or other structural problems
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Where we work in Manston
- Render & cladding joints
- Concrete & block
- Copings & trims
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
Looking after it afterwards
To keep the joints looking good and working properly:
- Don’t let climbing plants root in the sealant
- Tell anyone working on the walls about the movement joints
- Never let anyone fill a movement joint with mortar
- Walk round the building once a year and look at 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.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Landlords and agents in Manston can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Quotes for external mastic in Manston
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- How many areas need sealing
- Whether there’s mould to deal with
- Access and height
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the property is
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or email us.