Kent · England
External Mastic in Bapchild
Sealing brickwork movement joints, render, cladding and façade joints in Bapchild, with a one-year guarantee on every job. Ask us for a quote.
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Sealant that has lost its bond to the brick or render
External mastic in Bapchild, done properly
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two. If you’re dealing with plants rooting in failed movement joints and joints where the bead has come unstuck, we can help.
In a village or hamlet like Bapchild, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
There’s a 12-month guarantee on every job.
- Location
- Bapchild (ME9)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly where it can be done safely.
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether the work is at height
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What we need to know
You do not need to know the technical terms. Just tell us:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- The address or postcode of the job
- Whether it has been sealed before
If you’re in Bapchild and need external mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Landlords, agents and businesses in Bapchild
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Towns and villages near Bapchild
Also in Bapchild
Why act early in Bapchild
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way, and access only has to be arranged once. In a small place like Bapchild, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
Why Bapchild customers choose us
- Approved under the ARBOMaster scheme
- We are fully insured
- Rated 4.9 stars on Google
- We never seal over old sealant
Take a look at how sealant jobs are priced or customer reviews.
How it works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a small place like Bapchild, access is usually the main thing to plan. 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.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- On commercial sites, let us know about site rules
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Read more
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Check the sealant is paintable before painting near it
- Wash walls gently around the sealant
- Keep movement joints as flexible joints, not mortar
- Walk round the building once a year and look at the joints
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Bapchild questions
Is Bapchild within the area you cover?
Yes. Bapchild 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.
I let a flat near Teynham station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
How long does the job take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including the preparation. We’ll confirm how long when we quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
What information do you need?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What external mastic looks like in Bapchild
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Belmont House and Gardens (about 4.6 miles south-east) are a reminder that the area around Bapchild has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
For landlords with property near Teynham station, split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Church of St Nicholas, the joints between older walls, newer extensions and the roofline need a sealant that can move. Schools such as Rodmersham School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Bapchild is about 2 miles south-east of Sittingbourne, in Kent. Whether you’re in the middle of Bapchild or further out, we cover external mastic for every kind of property. Bapchild is one of 922 places in Kent we cover for external mastic. There’s also a page for Chelmsford, about 31 miles away.
We cover every part of ME9 for external mastic and the streets around it. We also cover the places around Bapchild: Rodmersham (1 mile north), Newbury (1 mile south), Rodmersham Green (1 mile west), Lynsted (1 mile east) and Highsted (1 mile west). We also work in nearby towns such as Maidstone (11 miles west), Ashford (13 miles south), Canterbury (14 miles east), Whitstable (12 miles east), Faversham (5 miles east) and Minster (7 miles north).
Landmarks near Bapchild
We work in homes and buildings around Cromers Wood, The Sittingbourne School and Black Lion Public House and the streets around them. For rail, the closest station is Teynham station, about 2.1 miles north-east of the centre. Nearby you will also find Bayford Court (2.1 miles north-west) and Sittingbourne Heritage Museum (1.9 miles north-west).