Kent · England
External Mastic in Goudhurst
External mastic across Goudhurst and nearby, with old sealant always removed completely.
- Failed seals between different materials
- Failed sealant between panels on a façade
- Rain getting behind render or cladding at a joint
External mastic in Goudhurst, done properly
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the line blends in. If you’re dealing with brick movement joints where the sealant has split and rain getting behind render or cladding at a joint, we can help, whatever the surface.
Around Goudhurst, 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Goudhurst (TN17)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Your questions about external mastic in Goudhurst
Will you come out to Goudhurst?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Marden station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Is it OK to fill a movement joint with cement?
No. Cement or mortar cannot stretch. If it has already been filled, we can generally cut it out and reseal it.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before we start from the range available.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Tell anyone working on the walls about the movement joints
- Clear growth from the base of walls and joints
- Check the sealant is paintable before painting near it
- Act on the first splits you see
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants are not designed to be painted and spoil the finish.
Act while the splits are small. Then it’s a straightforward cut-out and reseal.
Goudhurst buildings and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Scotney Castle (about 2.6 miles south-west) are a reminder that the area around Goudhurst has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near St Mary's Church, an extension built onto an older house moves differently, and the joint between them takes the strain. If you look after a building such as Goudhurst and Kilndown Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Goudhurst is about 8 miles east of Royal Tunbridge Wells, in Kent. For external mastic in and around Goudhurst, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Kent. We cover 922 towns and villages across Kent, large and small. We also work in Crawley, around 28 miles away.
Here we cover the TN17 postcode area for external mastic. You’ll find streets such as High Street, Church Road and Back Lane, and we cover them all. Nearby, we also carry out external mastic in Smallbridge (1 mile north-west), Brandfold (1 mile north), Broad Ford (1 mile north-west), Capel Cross (2 miles north) and Glassenbury (2 miles south-east). We also work in nearby towns such as Maidstone (11 miles north), Royal Tunbridge Wells (8 miles west), Tonbridge (10 miles north-west), Kings Hill (11 miles north), Foley Park (12 miles north) and Paddock Wood (5 miles north-west).
Near you in Goudhurst
In Goudhurst, that means homes and buildings near The Star And Eagle Hotel and The Gill and the streets around them. Goudhurst’s nearest station is Marden station, about 4.5 miles north of the centre. Other landmarks nearby include Finchcocks Musical Museum (1.6 miles south-west) and Ticehurst House Hospital (5.1 miles south-west). Green spaces nearby include Bewl Water.
Signs you need external mastic in Goudhurst
Some movement joints have been pointed up with mortar. The joint can’t move, so the wall cracks somewhere else instead.
Most people get in touch when they notice something like this:
- Failed sealant between panels on a façade
- Movement joints filled with mortar instead of sealant
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
If you let a flat or house near Marden station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- The length of the guarantee
- How the colour is chosen
- How the joint is cleaned and prepared
- Are they insured?
Surface by surface
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Goudhurst 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 start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
How to get a quote
For external mastic in Goudhurst, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
Why it’s worth doing now in Goudhurst
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. Where a wall is exposed, as many are in small places like Goudhurst, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start.
What you get with us
- We never seal over old sealant
- Every job guaranteed for a year
- Fully insured
- More than 20 years in sealant work
Read what affects the cost and customer reviews.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Places near Goudhurst
Also in Goudhurst
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.