Kent · England
Shirkoak External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Shirkoak, backed by a 12-month guarantee. Call for a quick quote.
- Joints pointed up with cement by mistake
- Panel joints letting water in
- Gaps where render, brick and frames meet
Common problems we fix in Shirkoak
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The problems people usually mention when they call are:
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
- Failed sealant between panels on a façade
If you let a flat or house near Ham Street station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- Who does the work, and how experienced they are
- Which colour the sealant will be
- What insurance they hold
- What the cure time is
External mastic in Shirkoak, done properly
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. We work on joints between brick and frames, copings & trims and render & cladding joints, and the jobs we see most are panel joints letting water in and moss and dirt in joints with no sealant left.
Around Shirkoak, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Where
- Shirkoak (TN26)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Tell us what the building has when you get in touch.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
Outside joints around Shirkoak
With historic houses such as Smallhythe Place (about 4.8 miles south-west) nearby, there’s older building stock in the area around Shirkoak 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. 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.
In the older streets around Parish Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For site and facilities teams at buildings such as Woodchurch Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Shirkoak is about 5 miles south-west of Ashford, in Kent. We carry out external mastic for homeowners, landlords and businesses in Shirkoak and the surrounding area. Across Kent, we cover 922 places, Shirkoak among them. Our Crawley page covers work nearby, about 42 miles away.
We cover every part of the TN26 postcode area for external mastic and the streets around it. Streets in the area include Bethersden Road, Shirkoak Park and Redbrook Street, all of which we cover. Neighbouring places we cover for external mastic include Woodchurch (1 mile south), Brattle (1 mile south), Brook Street (2 miles south), Leigh Green (3 miles south-west) and Appledore Heath (4 miles south). Within a short drive, we also cover Ashford (5 miles north-east), Hythe (14 miles east), Tenterden (4 miles south-west), Bearsted (15 miles north-west), Park Wood (14 miles north-west) and Kennington (7 miles north-east).
Landmarks near Shirkoak
Around Shirkoak, our work takes us to homes and buildings near Stone Wood and The Bonny Cravat Inn and the streets around them. The nearest railway station is Ham Street station, about 4 miles south-east. Well-known places in the area include Romden Castle (4.6 miles north-west) and Woodchurch Village Life Museum (0.7 miles south). Open spaces near Shirkoak include Orlestone Forest.
Shirkoak questions
Is Shirkoak in your area for external mastic?
Yes. We work across London and the South East, and Shirkoak is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
I let a flat near Ham Street station. Can you help?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What is a movement joint?
Brickwork, render and cladding all move a little, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.
Is there a guarantee?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
Quotes for external mastic in Shirkoak
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- How much there is to do
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Helping us quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Roughly how big the job is
- Access, such as stairs, a lift or height
Need a quote? Please phone 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. Somewhere like Shirkoak 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.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Related advice
Nearby places to Shirkoak
More services for Shirkoak
What happens if it’s left?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. In a small place like Shirkoak, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before we start.
Why choose Mr Mastic in Shirkoak
- Anti-fungal sanitary silicone in wet areas
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
- White, clear, grey or another colour, product permitting
Read our cost guide and customer reviews.
When something else is needed
It helps to know what we can’t do too:
- Render that’s blown, hollow or coming away
- Cracked brickwork or render that needs a builder or plasterer
- Damp that is not coming from the joint
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Copings & trims
Landlord and commercial work in Shirkoak
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
