Kent · England
External & façade joints in Chainhurst, Kent
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Chainhurst. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
About our external mastic in Chainhurst
Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what’s needed to reach them safely. We work on façade panels, render & cladding joints and joints between brick and frames, and common reasons people get in touch are sealant that has lost its bond to the brick or render and joints with sealant missing in places.
Older homes in small places like Chainhurst may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
All our work comes with a one-year guarantee.
- Place
- Chainhurst (TN12)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in Chainhurst
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.
Any of these means the joints need attention:
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Joints with sealant missing in places
Around Chainhurst, as everywhere, external mastic is only as good as the preparation behind it.
What to look for in a quote
- What happens if the job turns out different
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
- How much experience the applicator has
Also in Chainhurst
Surface by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Walls and rooflines in Chainhurst
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.
Rented homes near Marden station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Chainhurst is about 5 miles south-west of Maidstone, in Kent. For external mastic in and around Chainhurst, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Kent. Across Kent, we cover 922 places, Chainhurst among them. There’s also a page for Crawley, roughly 30 miles from Chainhurst.
Here we cover the TN12 postcode area for external mastic. External mastic is available to properties on Raynham Villas and Hunton Road and the roads around them. We also cover Hunton (1 mile north-west), Benover (2 miles north-west), Congelow (2 miles north-west), Coxheath (2 miles north) and Yalding (2 miles north-west). Further out, we also cover Maidstone (5 miles north-east), Sittingbourne (15 miles north-east), Sevenoaks (14 miles north-west), Royal Tunbridge Wells (10 miles south-west), Tonbridge (9 miles west) and Kings Hill (6 miles north-west).
Around Chainhurst
For rail, the closest station is Marden station, roughly 2 miles south of the centre. A little further out are South East Romany Museum (2.6 miles south-east) and Oakwood Hospital (4.6 miles north).
What affects the quote in Chainhurst
Every job gets its own quote. These are the things that affect it:
- How easy the joints are to reach
- How many areas need sealing
- The size of the job
- The old material and how stubborn it is
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What we need to know
To help us quote quickly, let us know:
- The rough size of the job
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- Any previous sealing or DIY work
If you’re in Chainhurst and need external mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes a few hours to a few days, depending on the length of joint and the access for a typical job. For a village or hamlet like Chainhurst, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
Get a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job.
Read more
Chainhurst: your questions answered
Will you come out to Chainhurst?
Yes. Chainhurst 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.
Can you do external mastic in Chainhurst?
Yes, Chainhurst is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
How long will you be here?
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 will tell you when we quote.
Do you work for letting agents?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
Do you guarantee your work?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
When is the sealant fully cured?
It depends on the product. Before we leave, we’ll tell you the cure time.
What happens if it’s left?
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. A flexible sealant over backing rod is what the joint needs. In a small place like Chainhurst, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Leaving a failed joint generally makes the job bigger, not smaller. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- 20+ years of sealant experience
- Neat joints and a tidy finish
- ARBOMaster approved applicator
Take a look at what affects the cost and customer reviews.
What we can’t put right
It helps to know what we cannot do too:
- Movement that’s more than a sealant joint can take
- Render that’s blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels