Kent · England
Potters Corner External Mastic
Professional external mastic in and around Potters Corner, with every bit of old sealant taken out first.
- Moss and dirt in joints with no sealant left
- Rigid filler in a joint that should flex
- Old sealant gone brittle and cracked
External mastic for homes and businesses in Potters Corner
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. The colour is chosen to suit the brick or render so the line blends in. If you have weathered mastic that no longer stretches and damp patches traced to an open external joint, we can help, whatever the surface.
Around Potters Corner, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually 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 will sort it.
- Place
- Potters Corner (TN25, TN26)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in Potters Corner
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Common reasons people contact us are:
- Gaps where render, brick and frames meet
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
For landlords with property near Ashford International station, split movement joints are easy to miss on a rental until damp shows inside.
Before you book anyone
- Whether you can choose the colour
- What the cure time is
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Potters Corner needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- On commercial sites, let us know about site rules
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or drop us an email.
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Quotes for external mastic in Potters Corner
There’s no set price list, because no two jobs are the same. The quote depends on:
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- The product the joint needs
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- The type of property
- What’s wrong with the joints now
- The rough size of the job
- If someone has resealed it before
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
What the job involves on each surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
Walls and rooflines in Potters Corner
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. With historic houses such as Godinton House (about 1.2 miles south-west) nearby, there’s older building stock in the area around Potters Corner as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Godinton House, about 1.2 miles south-west, is one of the historic houses in the wider area around Potters Corner, and older homes nearby need a sealant that suits their walls. Schools such as Goat Lees Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Potters Corner is about 2 miles north of Ashford, in Kent. Every kind of property in Potters Corner is covered for external mastic. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, Potters Corner among them. Our Chelmsford page covers work nearby (42 miles or so).
Work in TN25 and TN26 is quoted and booked the same way as anywhere else. Whether your property is on Kingsland Lane, Sandyhurst Lane and Westwell Lane or anywhere close by, our applicators can take on the job. Nearby, we also carry out external mastic in Bockhanger (1 mile south-east), Godinton (1 mile south), Westwell (1 mile north), Hothfield (1 mile west) and Kennington (1 mile east). We also work in nearby towns such as Canterbury (12 miles north-east), Sittingbourne (13 miles north-west), Folkestone (15 miles south-east), Whitstable (15 miles north-east), Faversham (10 miles north) and Hythe (12 miles south-east).
What’s near Potters Corner
We work in homes and buildings around Ashford Warren and Hoads Wood, Towers School and Sixth Form Centre and The Hayesbrook School. For rail, the closest station is Ashford International station, roughly 2.2 miles south-east. Other landmarks nearby include County Square (1.8 miles south-east) and William Harvey Hospital (3.4 miles south-east). Not far away are Hatch Park.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
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.
Looking after it afterwards
After the cure time, these simple habits help:
- Wash walls gently around the sealant
- Keep soil, plants and ivy away from the joints
- Walk round the building once a year and look at the joints
- Show decorators and builders where the movement joints are
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Places near Potters Corner
What else we do in Potters Corner
Potters Corner: your questions answered
Is Potters Corner in your area for external mastic?
Yes, Potters Corner is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Is Potters Corner within the area you cover?
Yes, Potters Corner is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the building. We’ll give you a better idea when we quote.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
Can I do it myself?
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.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.