Kent · England
External Mastic in Stubb's Cross
Professional external mastic in and around Stubb's Cross, with every bit of old sealant taken out first.
- Old sealant gone brittle and cracked
- Failed seals between different materials
- Sealant pulling away from one side of the joint
Stubb's Cross questions
Can you do external mastic in Stubb's Cross?
Yes, Stubb's Cross is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
I let a flat near Ashford International station. Can you help?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
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.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We’ll give you a better idea when we quote.
When is the sealant fully cured?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
External mastic in Stubb's Cross
For buildings in Stubb's Cross, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on joints between brick and frames, render & cladding joints and brickwork movement joints, and people most often call us about movement joints filled with mortar instead of sealant and sealant that has lost its bond to the brick or render.
External sealant needs dry, clean surfaces, so work around Stubb's Cross is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
We stand behind the work with a 12-month guarantee, so you’re covered after we have gone.

- Place
- Stubb's Cross (TN26)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Outside joints around Stubb's Cross
Historic houses like Godinton House (about 3.3 miles north) are a reminder that the area around Stubb's Cross 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. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Kingsnorth Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you let a flat or house near Ashford International station, split movement joints are easy to miss on a rental until damp shows inside.
Stubb's Cross is about 2 miles south-west of Ashford, in Kent. From the centre of Stubb's Cross to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our Kent coverage runs to 922 places, and Stubb's Cross is one of them. There’s also a page for Crawley, roughly 45 miles from Stubb's Cross.
We work across the TN26 postcode area for external mastic and the streets around it. You’ll find streets such as Magpie Hall Road and Tally Ho Road. Close by, we work in Kingsnorth (1 mile east), Shadoxhurst (1 mile south-west), Park Farm (1 mile north-east), Stanhope (1 mile north-east) and Chilmington Green (2 miles north-west). Further out, we also cover Folkestone (14 miles east), Faversham (14 miles north), Hythe (11 miles east), Davington (14 miles north), Preston (14 miles north) and Hawkinge (14 miles east).
What’s near Stubb's Cross
Locally, jobs take us to homes and businesses close to John Wallis Academy, Ashford Community Woodland and Queen's Head Public House. The nearest railway station is Ashford International station, roughly 2.6 miles north-east. A little further out are Woodchurch Village Life Museum (3.9 miles south-west) and William Harvey Hospital (3.7 miles north-east). Open spaces near Stubb's Cross include Orlestone Forest.
Places near Stubb's Cross
What else we do in Stubb's Cross
What the job involves on each surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.
The process
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation in most cases. Somewhere like Stubb's Cross needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Landlord and commercial work in Stubb's Cross
Letting agents and landlords in Stubb's Cross can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
If you manage several properties in or around Stubb's Cross, several properties can be quoted together. Just tell us the addresses and what each one needs.
Leave it or put it right?
Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. Around Stubb's Cross, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Stubb's Cross clients choose us
- Colour picked to suit the job
- Colour agreed with you before work begins
- ARBOMaster approved applicator
- Any old sealant cut out fully, not covered over
Read our cost guide and what customers say.
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- When we can work, for business premises
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
When you contact us, these details help:
- Where the property is
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
Want a quote for external mastic? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Signs you need external mastic in Stubb's Cross
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
Signs it’s time to call us include:
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
- Cracked joints where brick meets render or frames
- Sealant pulling away from one side of the joint
Homes close to St Francis include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before you book
- What insurance they hold
- How the surfaces are prepared before sealing
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
