Kent · England
External & façade joints in Trottiscliffe, Kent
External mastic in Trottiscliffe from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rain getting behind render or cladding at a joint
- Joints pointed up with cement by mistake
- Gaps where render, brick and frames meet
External mastic in Trottiscliffe
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two where mortar or filler would crack. We work on concrete & block, copings & trims and façade panels, and common reasons people get in touch are movement joints filled with mortar instead of sealant and damp patches traced to an open external joint.
Older homes in small places like Trottiscliffe may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Your job is guaranteed for a year, as with all our work.

- Place
- Trottiscliffe (ME19)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What external mastic looks like in Trottiscliffe
With historic houses such as Old Soar Manor (about 4 miles south) nearby, there’s older building stock in the area around Trottiscliffe as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
For an older house near a landmark such as Church of St Peter and St Paul, the joints between older walls, newer extensions and the roofline need a sealant that can move. Rented homes near Borough Green & Wrotham station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as Trottiscliffe Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Trottiscliffe is about 8 miles east of Sevenoaks, in Kent. Wherever you are in the ME19 postcode area, our applicators can take on external mastic. We cover 922 towns and villages across Kent, from the larger towns to small villages. There’s also a page for London, about 23 miles away.
Postcode districts we cover here for external mastic: ME19. Whether your property is on Church Lane, School Lane and Wrotham Water Lane or anywhere close by, our applicators can take on the job. Neighbouring places we cover for external mastic include Vigo Village (1 mile north), Fairseat (1 mile north-west), Addington (1 mile south-east), Culverstone Green (2 miles north) and Ryarsh (2 miles east). Further out, we also cover Maidstone (8 miles south-east), Dartford (10 miles north-west), Sevenoaks (8 miles west), Royal Tunbridge Wells (13 miles south), Gravesend (8 miles north) and Tonbridge (9 miles south).
What’s near Trottiscliffe
We work in homes and buildings around Wrotham School, Trosley Country Park and The Plough Public House, among other places. The closest station to Trottiscliffe is Borough Green & Wrotham station, roughly 2.7 miles south-west. Other landmarks nearby include Leybourne Castle (3 miles east) and Coldrum Long Barrow (0.8 miles east).
The process
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Trottiscliffe, 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 start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
Get a quote
If you are in Trottiscliffe and need external mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Read more
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Render that’s blown, hollow or coming away
- Walls that need new movement joints cut into them
- Movement that’s more than a sealant joint can take
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Façade panels
Trottiscliffe: your questions answered
Can you help a landlord with a rental near Borough Green & Wrotham station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Trottiscliffe?
Yes. Trottiscliffe is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
How do I get a quote for external mastic in Trottiscliffe?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months, large or small.
Leave it or put it right?
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Where a wall is exposed, as many are in small places like Trottiscliffe, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why Trottiscliffe customers choose us
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
- Fully insured
- 180+ five-star Google reviews
See how sealant jobs are priced and our reviews.
Places near Trottiscliffe
Also in Trottiscliffe
Keeping the joints in good condition
Aftercare is simple:
- Act on the first splits you see
- Fix overflowing gutters above sealed joints
- Show decorators and builders where the movement joints are
- Clear growth from the base of walls and joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Small splits are the time to act. At that stage it’s a simple cut out and reseal.
Landlord and commercial work in Trottiscliffe
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Surface by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
