Kent · England
External & façade joints in Chartham, Kent
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Chartham and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
External mastic in Chartham
For buildings in Chartham, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Typical jobs include cracked joints where brick meets render or frames and plants rooting in failed movement joints, on copings & trims, concrete & block and brickwork movement joints.
Around Chartham, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
You’re covered for a year from the day we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Place
- Chartham (CT4)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Render that’s blown, hollow or coming away
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Where we work in Chartham
- Copings & trims
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
Chartham questions
I let a flat near Chartham station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Is Chartham within the area you cover?
Yes. Chartham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll tell you when we quote.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
What colours does the sealant come in?
The sealant colour is picked to suit the wall. There’s a wide choice of exterior colours.
Also near Chartham
What else we do in Chartham
What external mastic looks like in Chartham
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.
Rented homes near Chartham station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Chartham Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Chartham is about 3 miles south-west of Canterbury, in Kent. If you need external mastic in Chartham, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Kent, Chartham included. Chartham is one of 922 towns and villages in Kent we cover for external mastic. We also work in Chelmsford, about 40 miles from Chartham.
Here we cover the CT4 postcode area for external mastic. Local streets include Station Road, River Court and The Green. We also cover Shalmsford Street (1 mile south), Mystole (1 mile south-west), Chartham Hatch (1 mile north), Garlinge Green (2 miles south) and Thanington (2 miles north-east). We also work in nearby towns such as Ashford (10 miles south-west), Canterbury (3 miles north-east), Dover (15 miles south-east), Sittingbourne (14 miles north-west), Folkestone (14 miles south-east) and Whitstable (7 miles north).
Landmarks near Chartham
Around Chartham, our work takes us to homes and buildings near No Man's Orchard and The Artichoke Inn and the streets around them. Chartham has its own railway station: Chartham station. Nearby you will also find Chilham Castle (2.7 miles west) and Whitefriars Shopping Centre (3.1 miles north-east). For a walk, there’s Blean Woods RSPB Reserve.
The process
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Chartham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before work begins.
Read more
Looking after it afterwards
After the cure time, these simple habits help:
- Tell anyone working on the walls about the movement joints
- Act on the first splits you see
- Look over the joints every year, ideally after winter
- Keep soil, plants and ivy away from the joints
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
Different surfaces, different methods
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
What happens if it’s left?
Done well, a resealed joint is a neat, straight line 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. Where a wall is exposed, as many are in small places like Chartham, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- 180+ five-star Google reviews
- 20+ years of sealant experience
- Colour agreed with you before any work starts
- Anti-fungal silicone where joints get wet
Read our cost guide and customer reviews.
How we quote for external mastic
We quote each job individually. This is what makes a difference:
- Which sealant suits the joint
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- The amount of work
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- A few pictures by email, if you can
- The rough size of the job
- Any access issues, like height or stairs
- If someone has resealed it before
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, and add pictures by email if you can.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.