Kent · England
Aylesham External Mastic
External mastic across Aylesham and nearby, with old sealant always removed completely.
- Failed seals between different materials
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
External mastic in Aylesham
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what access is needed. We work on concrete & block, brickwork movement joints and façade panels, and the jobs we see most are rigid filler in a joint that should flex and failed seals between different materials.
Houses in smaller places like Aylesham can stand more in the open than those in a built-up town, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are normally the first to go.
Big or small, it’s backed by our 12-month guarantee in Aylesham and across Kent.
- Where
- Aylesham (CT3)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in Aylesham
With historic houses such as Goodnestone Park (about 1.6 miles north-east) nearby, there’s older building stock in the area around Aylesham as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Aylesham Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near St Peter, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Aylesham is about 6 miles south-east of Canterbury, in Kent. From the centre of Aylesham to the outskirts, we cover external mastic for every kind of property. Our area takes in 922 places across Kent, large and small. There’s also a page for Chelmsford, roughly 47 miles from Aylesham.
We cover every part of CT3 for external mastic. Streets in the area include Market Place, Mexborough Square and Derwent Way, all of which we cover. We also cover Bloodden (1 mile north), Adisham (1 mile north), Womenswold (1 mile south-west), Woolage Green (2 miles south) and Out Elmstead (2 miles south-west). Within a short drive, we also cover Canterbury (6 miles north-west), Margate (13 miles north-east), Dover (8 miles south-east), Folkestone (10 miles south), Ramsgate (12 miles north-east) and Broadstairs (14 miles north-east).
Local landmarks in Aylesham
Aylesham has its own railway station: Aylesham station. Nearby you will also find St Martins Hospital (5.2 miles north-west).
Landlords, agents and businesses in Aylesham
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Aylesham, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Places near Aylesham
More services for Aylesham
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours to a few days, depending on the length of joint and the access. Parking around Aylesham is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Related advice
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Show decorators and builders where the movement joints are
- Walk round the building once a year and look at the joints
- Ask before painting over external sealant
- Never let anyone fill a movement joint with mortar
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Signs you need external mastic in Aylesham
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
People generally contact us when they notice something like this:
- Leaking joints around cladding and façade panels
- Rigid filler in a joint that should flex
- Cracked joints where brick meets render or frames
- Brick movement joints where the sealant has split
If you let a flat or house near Aylesham station, outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- Is VAT in the price?
- Which colour the sealant will be
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 pays to do it properly once. In a smaller place like Aylesham, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.
Why Aylesham clients choose us
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- Tidy, careful work
- Anti-fungal sanitary silicone in wet areas
Your questions about external mastic in Aylesham
Is Aylesham in your area for external mastic?
Yes, Aylesham is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you work for landlords with property near Aylesham station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we’ll do them. Tell us about the building and we’ll confirm what access is needed.
Are you insured?
Yes. Full insurance covers our work.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We’ll tell you when we quote.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- Any mould that needs treating
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
Photos help, but a description is a good start. Please mention:
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
- The type of property
- What’s wrong with the joints now
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, phone 0345 464 0079 or send us an email.
When something else is needed
Before booking, it’s worth knowing the limits too:
- Render that’s blown, hollow or coming away
- Damp that is not coming from the joint
- Movement that is more than a sealant joint can take
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Façade panels
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Copings & trims