Kent · England
External & façade joints in Upper Harbledown, Kent
External mastic for Upper Harbledown and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Plants rooting in failed movement joints
- Brick movement joints where the sealant has split
- Joints pointed up with cement by mistake
External mastic in Upper Harbledown, done properly
For buildings in Upper Harbledown, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. Common call-outs are for rigid filler in a joint that should flex and weathered mastic that no longer stretches, across render & cladding joints, copings & trims and concrete & block.
In a village or hamlet like Upper Harbledown, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Upper Harbledown (CT2)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Upper Harbledown
Is Upper Harbledown in your area for external mastic?
Yes, Upper Harbledown is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near Canterbury West station?
Yes. We work for landlords and agents as well as homeowners. You can call 0345 464 0079 or email us with the details for a clear quote.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
How often do external joints need resealing?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges.
Why do you put foam in the joint first?
That is backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only.
Do you work at height?
It depends on the building. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
Also near Upper Harbledown
Also in Upper Harbledown
What external mastic looks like in Upper Harbledown
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Church of St. Gabriel, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Canterbury West station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Upper Harbledown is about 2 miles west of Canterbury, in Kent. We carry out external mastic for homes and businesses in Upper Harbledown and the surrounding area. Upper Harbledown is one of 922 places in Kent where we work for external mastic. There’s also a page for Chelmsford, roughly 39 miles from Upper Harbledown.
All of CT2 is covered for external mastic. Local streets include Roman Road, The Green and Limes Place, and we cover them all. Close by, we work in Rough Common (1 mile north-east), Harbledown (1 mile east), Chartham Hatch (1 mile south-west), Thanington (1 mile south-east) and Wincheap (2 miles south-east). Within a short drive, we also cover Ashford (12 miles south-west), Dover (15 miles south-east), Sittingbourne (14 miles west), Folkestone (15 miles south-east), Whitstable (5 miles north) and Faversham (7 miles west).
What’s near Upper Harbledown
Around Upper Harbledown, our work takes us to homes and buildings near No Man's Orchard, The Canterbury Academy and The Dog and Bear pub and the streets around them. The closest station to Upper Harbledown is Canterbury West station, about 1.8 miles east. Nearby you will also find Canterbury Castle (1.9 miles east) and Eastbridge Hospital of St Thomas the Martyr (2 miles east). Green spaces nearby include Blean Woods RSPB Reserve.
The process
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the building for a typical job. In a small place like Upper Harbledown, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
- Tell us about any water getting in
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Upper Harbledown and across Kent. Several sites can go on one quote, and we are fully insured.
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.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Aftercare tips
After the cure time, these simple habits help:
- Clear growth from the base of walls and joints
- Leave the joints unpainted unless we have said otherwise
- Fix overflowing gutters above sealed joints
- Wash walls gently around the sealant
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
Why act early in Upper Harbledown
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. In a small place like Upper Harbledown, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why Upper Harbledown clients choose us
- Anti-fungal silicone where joints get wet
- A sealant colour to suit the surroundings
- Neat joints and a tidy finish
- A choice of colours where the product allows
Take a look at what affects the cost or our reviews.
When to call us in Upper Harbledown
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.
The most common problems we see are:
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
Managing a site like St Edmund's School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before booking anyone
- What happens if they find a problem under the old sealant
- Are they insured?
- The length of the guarantee
- How much experience the applicator has
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels