Kent · England
External & façade joints in Heronden, Kent
External mastic across Heronden and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
- Rain getting behind render or cladding at a joint
External mastic in Heronden
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We strip the joint back and start again. Typical jobs include failed sealant between panels on a façade and brick movement joints where the sealant has split, on render & cladding joints, concrete & block and joints between brick and frames.
External sealant needs dry, clean surfaces, so work around Heronden is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Heronden (CT13)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and clear up. It generally takes anything from a few hours to several days, depending on the building. Somewhere like Heronden needs a little journey planning: 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- 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.
Preparing for the visit
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
Ask for 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, call 0345 464 0079 or drop us an email.
Read more
What happens if it’s left?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Around Heronden, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
Why Heronden clients choose us
- We leave the area clean and tidy
- Every job guaranteed for a year
- Arbo and Everbuild products
- 180+ five-star Google reviews
Take a look at how sealant jobs are priced and what customers say.
Questions from Heronden
Is Heronden within the area you cover?
Yes. Heronden is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Heronden in your area for external mastic?
Yes, Heronden is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we’ll do them. Give us some details and we will confirm the access.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Landlords, agents and businesses in Heronden
For anyone letting property in or around Heronden, several properties can go on one quote. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
External mastic in Heronden: local notes
London and the South East are among 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 Goodnestone Park (about 2.7 miles west) are a reminder that the area around Heronden 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 landlords with property near Sandwich station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of St Mary the Virgin include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. Managing a site like Eastry Church of England Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Heronden is about 5 miles west of Deal, in Kent. Across the CT13 area, we cover external mastic for homes and businesses. 922 places in Kent are on our list, from the larger towns to small villages. We also work in Chelmsford, around 49 miles away.
All of CT13 is within our area for external mastic, from the main roads to the quietest streets. Other places close to Heronden include Hammill Park (1 mile north), Chillenden (2 miles west), Flemings (2 miles north), Barnsole (2 miles north-west) and Tilmanstone (2 miles south). Within a short drive, we also cover Canterbury (9 miles west), Margate (11 miles north-east), Dover (7 miles south), Folkestone (12 miles south-west), Ramsgate (9 miles north-east) and Broadstairs (10 miles north-east).
Around Heronden
In Heronden, that means homes and buildings near The Five Bells pub, among other places. Heronden’s nearest station is Sandwich station, about 3.1 miles north-east of the centre. Well-known places in the area include White Mill (3.2 miles north-east) and Sandown Castle (4.9 miles east). Open spaces near Heronden include Monk's Wall nature reserve.
How the job changes by surface
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and helps it last.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Places near Heronden
Other services in Heronden
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Never let anyone fill a movement joint with mortar
- Do not let climbing plants root in the sealant
- Fix overflowing gutters above sealed joints
- Tell anyone working on the walls about the movement joints
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted and spoil the finish.
Act while the splits are small. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- The size of the job
- Any working-time requirements on site
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
What to tell us when you ask for a quote:
- Where the property is
- What’s wrong with the joints now
- If someone has resealed it before
- Any access issues, like height or stairs
For external mastic in Heronden, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
What sealant work can’t fix
In fairness, there are a few things sealant will not fix:
- Walls that need new movement joints cut into them
- Render that is blown, hollow or coming away
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims