Kent · England
External & façade joints in Willesborough, Kent
Our applicators work in Willesborough on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Water getting into walls through failed joints
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
External mastic for homes and businesses in Willesborough
On houses, flats and commercial buildings across Willesborough, 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 work on copings & trims, joints between brick and frames and render & cladding joints, and people most often call us about weeds or debris growing in open joints and failed seals between different materials.
Around Willesborough, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Place
- Willesborough (TN24)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. For a job in Willesborough, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
Ask for a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Related advice
Different surfaces, different methods
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. We choose the product to suit.
Why act early in Willesborough
Resealing a run of joints in one go is generally better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. Around Willesborough, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Why us?
- Arbo and Everbuild products
- An ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
Read what affects the cost or customer reviews.
How we quote for external mastic
Your quote is based on your job. We look at:
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- How much there is to do
- Which sealant suits the joint
Combining jobs into one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the property is
- The rough size of the job
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
If you are in Willesborough and need external mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Also near Willesborough
What else we do in Willesborough
External mastic in Willesborough: local notes
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. With historic houses such as Godinton House (about 3.1 miles north-west) nearby, there’s older building stock in the area around Willesborough as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you look after a building such as Willesborough Junior School, its movement joints, gutters and trims need looking after like any other building’s. If you let a flat or house near Ashford International station, outside joints that have cracked can let damp into a rental, so check them between lets.
Willesborough is about 1 mile east of Ashford, in Kent. We carry out external mastic for homeowners, landlords and businesses in Willesborough and nearby. Willesborough is one of 922 towns and villages in Kent we cover. There’s also a page for Chelmsford, roughly 45 miles from Willesborough.
Postcode districts we cover here for external mastic: TN24. That includes homes and businesses on Mead Road, Mill Lane and Milne Road and the roads around them. You will find Willesborough on the A2070, which makes it straightforward to reach with everything needed for external mastic. If you are just outside Willesborough, we cover South Willesborough (1 mile south-west), Newtown (1 mile south-west), Ashford (1 mile west), Finberry (1 mile south) and Park Farm (2 miles south-west). Further out, we also cover Canterbury (13 miles north-east), Folkestone (12 miles east), Faversham (12 miles north), Hythe (9 miles south-east), Davington (12 miles north) and Preston (12 miles north).
What’s near Willesborough
Around Willesborough, our work takes us to homes and buildings near The William Harvey Public House, Ashford Green Corridors and The North School, among other places. For rail, the closest station is Ashford International station, about 0.9 miles west of the centre. Nearby you’ll also find William Harvey Hospital (0.8 miles east) and Ashford Designer Outlet (0.8 miles west). For a walk, there’s Hatch Park.
Signs you need external mastic in Willesborough
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Keep an eye out for these signs:
- Rigid filler in a joint that should flex
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
For an older house near a landmark such as Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
- Whether all the old sealant comes out first
- When the joint can take water or movement
Willesborough questions
Is Willesborough in your area for external mastic?
Yes, Willesborough is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Willesborough?
Yes. Willesborough 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.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.
What should I tell you?
A short description and the location, with pictures by email if possible. If we need more, we’ll ask.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Rising or penetrating damp from elsewhere in the wall
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Willesborough
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Façade panels