Kent · England
External Mastic in Wincheap
Professional external mastic in and around Wincheap, with every bit of old sealant taken out first.
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
- Joints where the bead has come unstuck
External mastic in Wincheap, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. Typical jobs include damp patches traced to an open external joint and sealant pulling away from one side of the joint, on joints between brick and frames, render & cladding joints and brickwork movement joints.
Outbuildings, garages and conservatories around homes in places like Wincheap add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
Each job carries a 12-month guarantee, whatever its size.

- Where
- Wincheap (CT1, CT2)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Wincheap
Some jobs are bigger than they look, and some smaller. The main factors:
- How easy the joints are to reach
- When we can work, for business premises
- The type of sealant required
- The size of the job
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Helping us quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- How we’d reach the joints
- Whether it has been sealed before
- The rough size of the job
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Also near Wincheap
Also in Wincheap
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Wincheap buildings and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Wincheap Foundation 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 Canterbury East station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Wincheap is about 1 mile south-west of Canterbury, in Kent. Anywhere in CT1, our applicators can take on external mastic. Our Kent coverage runs to 922 places, and Wincheap is one of them. Chelmsford is on our list too, about 41 miles from Wincheap.
Jobs for external mastic in CT1 and CT2 works the same way as everywhere else we cover. Whether your property is on Ada Road, Cow Lane and Back Lane or anywhere close by, our applicators can take on the job. Wincheap sits on or near the A2. Neighbouring places we cover for external mastic include Canterbury (1 mile north-east), Thanington (1 mile south-west), Harbledown (1 mile north-west), Stuppington (1 mile south) and Hales Place (2 miles north). Larger places within reach include Ashford (13 miles south-west), Margate (15 miles north-east), Dover (14 miles south-east), Sittingbourne (15 miles west), Folkestone (14 miles south) and Ramsgate (15 miles east).
Local landmarks in Wincheap
We work in homes and buildings around Canterbury School of Architecture, St Thomas of Canterbury Church and Duke's Head Public House and the streets around them. Nearby too are The Canterbury Academy (0.5 miles north-west) and Whitehall Meadows (within half a mile north-west). Wincheap has its own railway station: Canterbury East station. A little further out are Canterbury Castle (less than half a mile north-east) and Rupert Bear Museum (less than half a mile north-east). For a walk, there’s Blean Woods RSPB Reserve.
How it works
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. A visit to Wincheap is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Let us know about parking restrictions
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
If you’re in Wincheap and need external mastic, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
Wincheap: your questions answered
Is Wincheap in your area for external mastic?
Yes. Our work covers London and the South East, and Wincheap is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Do you cover smaller places like Wincheap?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What does external mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. A flexible sealant is the right fill.
Why do you put foam in the joint first?
That’s backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
Work for landlords, hotels and businesses
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Why it’s worth doing now in Wincheap
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In an older home around Wincheap, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
What you get with us
- We agree the colour with you first
- A 12-month guarantee on all work
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
See our cost guide and customer reviews.
Common problems we fix in Wincheap
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and speed up the damage.
People usually contact us after spotting one of these:
- Sealant that has lost its bond to the brick or render
- Failed sealant between panels on a façade
- Failed seals between different materials
- Brick movement joints where the sealant has split
If you live in an older home near Church of St Mildred, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- Which sealant they’ll use, and why
- What preparation is included
- Whether all the old sealant comes out first
- How long to leave it before use
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
- Render that’s blown, hollow or coming away
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Façade panels
