Kent · England
External & façade joints in Goodnestone, Kent
We cover Goodnestone for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Plants rooting in failed movement joints
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
External mastic for homes and businesses in Goodnestone
On houses, flats and commercial buildings across Goodnestone, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We are often asked to deal with movement joints filled with mortar instead of sealant and sealant pulling away from one side of the joint, across render & cladding joints, joints between brick and frames and brickwork movement joints.
Older homes in small places like Goodnestone may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
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.

- Where
- Goodnestone (CT3)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Where a wall is exposed, as many are in small places like Goodnestone, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Colour agreed with you before work begins
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
Take a look at how sealant jobs are priced or customer reviews.
What happens on the day
On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work normally takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Goodnestone, 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.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any tricky access
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
Your questions about external mastic in Goodnestone
I let a flat near Adisham station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Is Goodnestone in your area for external mastic?
Yes. Our work covers London and the South East, and Goodnestone is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
Why is there a gap in my brick wall?
Brickwork, render and cladding all move a little, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours to a few days, depending on the length of joint and the access. We will give you a better idea when we quote.
How the job changes by surface
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.
Nearby places to Goodnestone
What else we do in Goodnestone
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Do not let climbing plants root in the sealant
- Never let anyone fill a movement joint with mortar
- Fix overflowing gutters above sealed joints
- Show decorators and builders where the movement joints are
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
External mastic in Goodnestone: local notes
With historic houses such as Goodnestone Park (about 0.4 miles south-west) nearby, there’s older building stock in the area around Goodnestone 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of the Holy Cross, an extension built onto an older house moves differently, and the joint between them takes the strain. For site and facilities teams at buildings such as Goodnestone Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Letting a property close to Adisham station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Goodnestone is about 7 miles east of Canterbury, in Kent. Across the CT3 area, our applicators can take on external mastic. We cover 922 towns and villages across Kent, large and small. Chelmsford is on our list too, about 47 miles from Goodnestone.
Every address in CT3 is covered for external mastic, from the main roads to the quietest streets. We cover properties on The Street, Saddlers Hill and Fitzwalters Meadow. Nearby, we also carry out external mastic in Chillenden (1 mile south-east), Twitham (1 mile north), Well Head (1 mile north), Ratling (1 mile south-west) and Staple (2 miles north-east). We also work in nearby towns such as Canterbury (7 miles west), Margate (11 miles north-east), Dover (8 miles south), Folkestone (12 miles south), Ramsgate (10 miles north-east) and Broadstairs (12 miles north-east).
What’s near Goodnestone
In Goodnestone, that means homes and buildings near The Fitzwalter Arms and the streets around them. The closest station to Goodnestone is Adisham station, roughly 1.5 miles west. A little further out are St Martins Hospital (5.7 miles west).
Landlord and commercial work in Goodnestone
We work for landlords and agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Quotes for external mastic in Goodnestone
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- Which sealant suits the joint
- Working hours on commercial sites
- The size of the job
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. The price is agreed before we begin.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- If someone has resealed it before
- The type of property
- Any access issues, like height or stairs
- The rough size of the job
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
What we cannot put right
It helps to know what we can’t do:
- Cracked brickwork or render that needs a builder or plasterer
- Render that’s blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Façade panels
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
