Kent · England
Hollybushes External Mastic
External mastic for Hollybushes, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
- Weathered mastic that no longer stretches
Honest limits
We won’t take on work that will not last, so these are the limits:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Hollybushes
- Render & cladding joints
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
How we handle external mastic in Hollybushes
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you are dealing with sealant pulling away from one side of the joint and failed sealant between panels on a façade, we can put it right.
Outside joints can only be sealed when they’re dry, so work in Hollybushes is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Every job comes with our one-year guarantee, wherever you are in Kent.
- Place
- Hollybushes (ME9)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What external mastic looks like in Hollybushes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Belmont House and Gardens (about 4.8 miles east) are a reminder that the area around Hollybushes has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For landlords with property near Sittingbourne station, split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near Church of St Mary and the Holy Cross, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Hollybushes is about 4 miles south of Sittingbourne, in Kent. Our applicators cover external mastic for householders, landlords and businesses in Hollybushes and the surrounding area. Hollybushes is one of 922 places in Kent where we work for external mastic. Our Chelmsford page covers work nearby.
Here we cover the ME9 postcode area for external mastic. Neighbouring places we cover for external mastic include Bluetown (1 mile east), Milstead (1 mile north-west), Wichling (1 mile south-east), Doddington (1 mile east) and Frinsted (2 miles west). Further out, we also cover Maidstone (9 miles west), Ashford (12 miles south-east), Canterbury (15 miles east), Sittingbourne (4 miles north), Whitstable (13 miles east) and Faversham (7 miles east).
Local landmarks in Hollybushes
We work in homes and buildings around Cromers Wood, among other places. The closest station to Hollybushes is Sittingbourne station, roughly 3.7 miles north. Nearby you’ll also find Sittingbourne Heritage Museum (3.5 miles north) and Newnham Castle (2.7 miles east).
Quotes for external mastic in Hollybushes
You will get a clear quote before work begins. It’s based on:
- The number and length of the joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
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. Your quote takes all of that into account.
Helping us quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- What’s wrong with the joints now
- Whether it’s a home or a business
- Pictures of the joints, sent by email
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the building, and the area is left clean. Somewhere as small as Hollybushes, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- 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 any parking rules near the property
- Move anything stored near the joints
- On commercial sites, let us know about site rules
How to get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email with a few details. We will explain what we’d do and send you a clear quote before work begins.
Read more
Different surfaces, different methods
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Questions from Hollybushes
Do you cover smaller places like Hollybushes?
Yes. Hollybushes is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Hollybushes?
Yes. Our work covers London and the South East, and Hollybushes is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
How do I get a quote for external mastic in Hollybushes?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.
How long does external mastic take?
As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer, and we will say how long yours will take.
What is a movement joint?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Also near Hollybushes
More services for Hollybushes
What we’re called out for in Hollybushes
Some movement joints have been pointed up with mortar. The joint cannot move, so the wall cracks somewhere else instead.
Signs it’s time to call us include:
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
For site and facilities teams at buildings such as Milstead and Frinsted Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- Whether you can choose the colour
- Which sealant they’ll use, and why
- Who turns up on the day
- What guarantee comes with the work
Keeping the joints in good condition
Aftercare is simple:
- Keep movement joints as flexible joints, not mortar
- Fix overflowing gutters above sealed joints
- Show decorators and builders where the movement joints are
- Keep soil, plants and ivy away from the joints
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
DIY versus a professional finish
If you are 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 jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.