Kent · England
External & façade joints in Millbank, Kent
External mastic for Millbank, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old sealant gone brittle and cracked
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
About our external mastic in Millbank
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two where mortar or filler would crack. Common call-outs are for sealant that has lost its bond to the brick or render and old sealant gone brittle and cracked, across render & cladding joints, copings & trims and façade panels.
Older homes in small places like Millbank may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
Every job is covered by a 12-month guarantee.
- Place
- Millbank (CT3)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
External mastic in Millbank: local notes
Millbank 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Herne Bay station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as Church of the Holy Cross, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Millbank is about 2 miles south-east of Herne Bay, in Kent. Jobs in Millbank get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. 922 places in Kent are on our list. We also work in Chelmsford, around 40 miles away.
Work in CT3 is quoted and booked the same way as anywhere else. We also cover the places around Millbank: Maypole (1 mile south), Old Tree (1 mile south-east), Highstead (1 mile north-east), Hoath (1 mile south) and Knave's Ash (1 mile south-west). Further out, we also cover Canterbury (6 miles south-west), Margate (10 miles east), Dover (15 miles south), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles west).
What’s near Millbank
We work in homes and buildings around Spires Academy, Curtis Wood and The Huntsman And Horn Public House. Millbank’s nearest station is Herne Bay station, about 2.4 miles north-west of the centre. A little further out are Whitstable and Tankerton Hospital (5 miles west). Not far away are West Blean and Thornden Woods.
What the job involves on each surface
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.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
What we’re called out for in Millbank
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
These are the problems we’re asked about most:
- Sealant pulling away from one side of the joint
- Joints with sealant missing in places
- Leaking joints around cladding and façade panels
- Cracked joints where brick meets render or frames
For site and facilities teams at buildings such as Hoath Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- Whether you can choose the colour
- How much experience the applicator has
- Are they insured?
- How long the guarantee is
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Ask before painting over external sealant
- Keep water from gutters off the wall
- Keep soil, plants and ivy away from the joints
- Get split or bare joints resealed while the damage is small
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
When something else is needed
It helps to know what we cannot do too:
- Movement that’s more than a sealant joint can take
- Loose or hollow render, which needs re-rendering
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Millbank
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Concrete & block
What affects the quote in Millbank
We don’t publish a price list, because no two jobs are the same. What we look at:
- The product the joint needs
- The number of rooms or windows
- Whether there’s mould to deal with
- The old material and how stubborn it is
What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- Whether it’s a home or a business
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
For external mastic in Millbank, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before work begins.
Towns and villages near Millbank
Also in Millbank
Landlord and commercial work in Millbank
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
If you manage several properties in or around Millbank, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
What we do, step by step
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access for a typical job. In a small place like Millbank, access is normally the main thing to plan. 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.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
- Mention any parking rules near the property
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
Read more
Your questions about external mastic in Millbank
Is external mastic in a coastal place like Millbank 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 usually the first to need attention.
I let a flat near Herne Bay station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we’ll do them. Give us some details and we’ll confirm the access.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Do you use backing rod?
That’s backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only.