Kent · England
External Mastic in Chalksole Green
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Chalksole Green. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weathered mastic that no longer stretches
- Gaps where render, brick and frames meet
- Plants rooting in failed movement joints
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
About our external mastic in Chalksole Green
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. We work on façade panels, brickwork movement joints and render & cladding joints, and common reasons people get in touch are cracked joints where brick meets render or frames and weathered mastic that no longer stretches.
Somewhere as small as Chalksole Green, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
There’s a 12-month guarantee on every job.
- Where
- Chalksole Green (CT15)
- Wider area
- Kent
- Cover
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Chalksole Green
Also in Chalksole Green
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Never let anyone fill a movement joint with mortar
- Leave the joints unpainted unless we’ve said otherwise
- Tell anyone working on the walls about the movement joints
- Get split or bare joints resealed while the damage is small
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges over time.
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.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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 doesn’t work out, we can still put it right.
Chalksole Green buildings and the weather
Chalksole Green is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of St Anthony the Martyr, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Chalksole Green is about 4 miles west of Dover, in Kent. Jobs in Chalksole Green get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent, from the larger towns to small villages. For nearby work, see our Chelmsford page, about 52 miles away.
Work in CT15 works the same way as everywhere else we cover. Neighbouring places we cover for external mastic include Ewell Minnis (1 mile east), Alkham (1 mile south-east), South Alkham (1 mile south), Wolverton (1 mile east) and Drellingore (1 mile south-west). Further out, we also cover Ashford (15 miles west), Canterbury (11 miles north-west), Dover (4 miles east), Folkestone (5 miles south-west), Deal (9 miles north-east) and Hythe (8 miles south-west).
Landmarks near Chalksole Green
We work in homes and buildings around Sladden Wood. Chalksole Green’s nearest station is Kearsney station, about 2.5 miles east. Other landmarks nearby include Crabble Corn Mill (3 miles east) and Folkestone Castle (3.9 miles south-west). Not far away are Sugar Loaf Hill and Dover Western Heights.
Common problems we fix in Chalksole Green
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and make things worse.
Look out for any of the following:
- Movement joints with cracked, split or missing sealant
- Cracked joints where brick meets render or frames
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
If you let a flat or house near Kearsney station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- How the surfaces are prepared before sealing
- What happens if the job turns out different
- Whether they’re fully insured
- Whether the sealant suits the joint
How it works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. In a small place like Chalksole Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Mention if the joints have been sealed before
- Clear the area around the work
- Keep children and pets away from the work area
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Read more
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Render that is blown, hollow or coming away
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Façade panels
- Copings & trims
- Joints between brick and frames
Landlords, agents and businesses in Chalksole Green
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Landlords and agents in Chalksole Green can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
FAQs for Chalksole Green
I let a flat near Kearsney station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Is external mastic in a coastal place like Chalksole Green any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
What’s an expansion joint in brickwork?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first.
How long will you be here?
A typical job takes a few hours to a few days, depending on the length of joint and the access. We will confirm how long when we quote.