Kent · England
External & façade joints in Marshborough, Kent
Our applicators work in Marshborough on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Failed seals between different materials
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
Quotes for external mastic in Marshborough
Call for a quick quote. What matters most is:
- When we can work, for business premises
- The number and length of the joints
- Any mould that needs treating
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- How we’d reach the joints
For external mastic in Marshborough, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
About our external mastic in Marshborough
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall. We are often asked to deal with damp patches traced to an open external joint and joints with sealant missing in places, across concrete & block, joints between brick and frames and copings & trims.
Around Marshborough, 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Marshborough (CT13)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Landlord and commercial work in Marshborough
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Marshborough, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Towns and villages near Marshborough
Also in Marshborough
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How the visit works
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Marshborough, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
Preparing for the visit
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
Ask for a quote
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
Advice
What we cannot put right
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant won’t put right:
- Failed render or damaged cladding panels
- Cracking across the wall rather than at a joint
- Movement that is more than a sealant joint can take
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Façade panels
Leave it or put it right?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Marshborough, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why book with us
- White, clear, grey or another colour, product permitting
- Over 20 years’ experience
- A sealant colour to suit the surroundings
- We agree the colour with you first
Outside joints around Marshborough
Historic houses like Goodnestone Park (about 3.7 miles south-west) are a reminder that the area around Marshborough has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mary the Virgin include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Sandwich station? Then outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Sandwich Technology School, larger buildings have long runs of movement joint that eventually need resealing.
Marshborough is about 5 miles north-west of Deal, in Kent. If you need external mastic in Marshborough, please call 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base, Marshborough included. 922 places in Kent are on our list, large and small. For nearby work, see our Chelmsford page.
Here we cover the CT13 postcode area for external mastic. Neighbouring places we cover for external mastic include Woodnesborough (1 mile south-east), East Street (1 mile north), Statenborough (1 mile south-east), Felderland (2 miles south-east) and Sandwich (2 miles east). Further out, we also cover Canterbury (10 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (8 miles north-east).
Near you in Marshborough
We work in homes and buildings around Ham Fen. The closest station to Marshborough is Sandwich station, about 1.7 miles east. Well-known places in the area include White Mill (1.3 miles north-east) and Sandown Castle (4.8 miles south-east). Not far away are Monk's Wall nature reserve.
Marshborough: your questions answered
Do you cover Marshborough for external mastic?
Yes, Marshborough is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you cover smaller places like Marshborough?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Do you guarantee your work?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Looking after it afterwards
Aftercare is simple:
- Do not let climbing plants root in the sealant
- Check the sealant is paintable before painting near it
- Tell anyone working on the walls about the movement joints
- Keep movement joints as flexible joints, not mortar
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, usually as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
