Kent · England
Hawthorn External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Hawthorn, with a 12-month guarantee on every job. Call for a quick quote.
- Sealant pulling away from one side of the joint
- Gaps where render, brick and frames meet
- Water getting into walls through failed joints
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Act on the first splits you see
- Keep movement joints as flexible joints, not mortar
- Keep soil, plants and ivy away from the joints
- Point out the joints to other trades
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.
External mastic for homes and businesses in Hawthorn
For buildings in Hawthorn, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on brickwork movement joints, façade panels and render & cladding joints, and common reasons people get in touch are movement joints with cracked, split or missing sealant and cracked joints where brick meets render or frames.
Older homes in small places like Hawthorn 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.
Every job comes with our one-year guarantee, wherever you are in Kent.
- Place
- Hawthorn (CT6, CT3)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Outside joints around Hawthorn
Hawthorn is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Herne Bay station, outside joints that have cracked can let damp into a rental, so check them between lets. Managing a site like Reculver Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Hawthorn is about 2 miles east of Herne Bay, in Kent. Jobs in Hawthorn get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Hawthorn is one of 922 towns and villages in Kent where we work. There’s also a page for Chelmsford, about 39 miles away.
Jobs for external mastic in CT6 and CT3 is quoted and booked the same way as anywhere else. Whether your property is on Campion Avenue, Sweechbridge Road and Heart in Hand Road or a nearby road, we can help. Hawthorn sits on or near the A299, so getting to you is simple. We also cover Hillborough (1 mile north-west), Highstead (1 mile south), Bishopstone (1 mile north), Broomfield (1 mile west) and Beltinge (1 mile north-west). We also work in nearby towns such as Canterbury (7 miles south-west), Margate (9 miles east), Ramsgate (10 miles east), Broadstairs (11 miles east), Whitstable (6 miles west) and Deal (14 miles south-east).
Landmarks near Hawthorn
We work in homes and buildings around The Huntsman And Horn Public House and Bishopstone Cliffs, among other places. For rail, the closest station is Herne Bay station, roughly 2.4 miles west of the centre. Well-known places in the area include Whitstable and Tankerton Hospital (5.4 miles west). Open spaces near Hawthorn include West Blean and Thornden Woods.
How the job changes by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
When to call us in Hawthorn
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Look out for these signs:
- Plants rooting in failed movement joints
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
For an older house near a landmark such as Church of St Mary the Virgin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before booking anyone
- Whether you can choose the colour
- Is the old sealant removed completely?
- What product goes in the joint
- How hidden problems are handled
How we quote for external mastic
We quote each job individually. This is what makes a difference:
- Access and height
- Whether there’s mould to deal with
- Which sealant suits the joint
- Any working-time requirements on site
Doing several joints on one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
What we need to know
Before you ask for a quote, have a think about:
- Where the property is
- Access, such as stairs, a lift or height
- The rough size of the job
- If it’s domestic, commercial or a hotel
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Questions from Hawthorn
Do you cover smaller places like Hawthorn?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Hawthorn affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Pointing it stops it working and can lead to cracking. A flexible sealant is the right fill.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before we start.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Why act early in Hawthorn
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last so it’s worth doing right. Older cottages and farmhouses around Hawthorn can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Approved under the ARBOMaster scheme
- Neat joints and a tidy finish
- White, clear, grey or coloured to suit, where the product allows
- Rated 4.9 stars on Google
See our cost guide and customer reviews.
What happens on the day
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work generally takes anything from a few hours to several days, depending on the building. Somewhere as small as Hawthorn, 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.
- 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.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
How to get a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Related advice
Places near Hawthorn
What else we do in Hawthorn
For landlords and businesses
Letting agents and landlords in Hawthorn can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Housing providers, facilities teams and property managers book us too in Hawthorn and across Kent. We can quote a run of properties together, and we are fully insured for the work.