Kent · England
Rusthall External Mastic
Movement joints in Rusthall need attention? We remove the old material, prepare the joints and seal them properly.
- Movement joints with cracked, split or missing sealant
- Gaps where render, brick and frames meet
- Plants rooting in failed movement joints
External mastic for homes and businesses in Rusthall
On houses, flats and commercial buildings across Rusthall, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We’re often asked to deal with sealant pulling away from one side of the joint and rigid filler in a joint that should flex, on render & cladding joints, brickwork movement joints and façade panels.
Outbuildings, garages and conservatories around homes in places like Rusthall add more joints to look after. Leaks usually start at a gutter end, a garage door frame or where an extension meets the house.
Every job is covered by our one-year guarantee, wherever you are in Kent.
- Where
- Rusthall (TN4, TN3)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
It helps to know what we can’t do:
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before you book.
What we seal
- Concrete & block
- Joints between brick and frames
- Façade panels
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
Walls and rooflines in Rusthall
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. Historic houses like Groombridge Place (about 2.2 miles south-west) are a reminder that the area around Rusthall has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
For site and facilities teams at buildings such as Rusthall St Paul's CofE VA Primary School, its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near St Paul's Church Centre, an extension built onto an older house moves differently, and the joint between them takes the strain.
Rusthall is about 2 miles west of Royal Tunbridge Wells, in Kent. Anywhere in TN4, we cover external mastic for homes and businesses. Rusthall is one of 922 towns and villages in Kent we cover for external mastic. You can also see our page for Crawley, about 18 miles away.
Work in TN4 and TN3 is quoted and booked the same way as anywhere else. We cover properties on Rusthall High Street, Hill View Road and Manor Road and the roads around them. We also cover the places around Rusthall: Langton Green (1 mile west), Bullingstone (1 mile north-west), Speldhurst (1 mile north-west), Stockland Green (1 mile north) and Broadwater Down (2 miles south-east). Larger places within reach include Sevenoaks (10 miles north), Tonbridge (5 miles north-east), Kings Hill (12 miles north-east), Paddock Wood (7 miles east), Edenbridge (9 miles north-west) and Staplehurst (14 miles east).
Near you in Rusthall
Locally, jobs take us to homes and businesses close to Bennett Memorial Diocesan School, Rose Hill School and The Oak pub. Rusthall’s nearest station is Tunbridge Wells station, roughly 1.5 miles east of the centre. Well-known places in the area include Tonbridge Castle (4.5 miles north-east) and Kent and Sussex Hospital (1.3 miles east). For a walk, there’s Barden Lake and Broadwater Warren RSPB Reserve.
Different surfaces, different methods
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind.
What affects the cost of external mastic
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- The size of the job
- How many areas need sealing
- How easy the joints are to reach
Combining jobs into one visit generally makes better use of the time than several visits. We’ll send you a clear quote for the lot.
Asking for a quote
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- Whether it has been sealed before
- The problem you’ve noticed
- Any access issues, like height or stairs
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Looking after it afterwards
Looking after new joints is easy:
- Ask before painting over external sealant
- Keep soil, plants and ivy away from the joints
- Wash walls gently around the sealant
- Look over the joints every year, ideally after winter
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Can I do it myself?
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.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Places near Rusthall
What else we do in Rusthall
Your questions about external mastic in Rusthall
Is Rusthall within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Rusthall in your area for external mastic?
Yes, Rusthall is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
What we do, step by step
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. 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 around Rusthall is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- We clean both faces of the joint and prime them where the product calls for it.
- 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.
Preparing for the visit
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we are working on
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
Do you need external mastic in Rusthall?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
People normally contact us after spotting something like this:
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
- Weeds or debris growing in open joints
- Panel joints letting water in
For landlords with property near Tunbridge Wells station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Who does the work, and how experienced they are
- What guarantee comes with the work
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?