Kent · England
External Mastic in Shipbourne
External mastic in Shipbourne from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed seals between different materials
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
External mastic in Shipbourne
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. If you have brick movement joints where the sealant has split and water getting into walls through failed joints, we can put it right, on copings & trims, concrete & block and brickwork movement joints alike.
Older homes in small places like Shipbourne may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
You are covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or send us an email.
- Where
- Shipbourne (TN11)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Shipbourne
Can you help a landlord with a rental near Borough Green & Wrotham station?
Yes. We work for landlords and letting agents as well as homeowners. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Shipbourne?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year.
How much does external mastic cost in Shipbourne?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or send us an email and let us know what needs doing and where.
Is it OK to fill a movement joint with cement?
No. Cement or mortar can’t stretch, so the joint stops doing its job. If it has already been filled, we can usually cut it out and reseal it.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before work begins.
Outside joints around Shipbourne
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Ightham Mote (about 1.1 miles north-west) are a reminder that the area around Shipbourne 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 site and facilities teams at buildings such as Shipbourne School, larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as Church of St Giles, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Shipbourne is about 3 miles north of Tonbridge, in Kent. Jobs in Shipbourne get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Shipbourne is one of 922 towns and villages in Kent we cover. Crawley is on our list too, around 23 miles away.
We work across TN11 for external mastic. You’ll find streets such as Upper Green Road, Upper Green Lane and Back Lane, all of which we cover. We also cover the places around Shipbourne: Budds (1 mile west), Yopps Green (1 mile north), Sheet Hill (2 miles north), Ivy Hatch (2 miles north) and Coldharbour (2 miles south-west). We also work in nearby towns such as Maidstone (11 miles east), Dartford (14 miles north), Sevenoaks (5 miles north-west), Royal Tunbridge Wells (8 miles south), Gravesend (13 miles north) and Tonbridge (3 miles south).
What’s near Shipbourne
Locally, jobs take us to homes and businesses close to Ivy Hatch Nature Reserve, Hugh Christie Technology College and The Chaser Public House and the streets around them. Shipbourne’s nearest station is Borough Green & Wrotham station, roughly 3.3 miles north of the centre. A little further out are Ightham Court (3.3 miles north) and Hadlow Tower museum (2.8 miles south-east). Open spaces near Shipbourne include Barden Lake.
When it is not the sealant
It helps to know what we cannot do:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Façade panels
The process
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours to a few days, depending on the length of joint and the access from start to finish. Somewhere as small as Shipbourne, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
Getting a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
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Towns and villages near Shipbourne
Also in Shipbourne
Landlords, agents and businesses in Shipbourne
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Why it’s worth doing now in Shipbourne
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Around Shipbourne, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Shipbourne customers choose us
- We leave the area clean and tidy
- ARBOMaster approved applicator
- One-year guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
See what affects the cost and what customers say.
DIY sealant or a professional job?
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 does not work out, we can still put it right.
A careful DIYer can reseal a simple joint, 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.
Signs you need external mastic in Shipbourne
Some movement joints have been pointed up with mortar by mistake. The joint can’t move, so the wall cracks somewhere else instead.
Any of these means the joints need attention:
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Plants rooting in failed movement joints
If you let a flat or house near Borough Green & Wrotham station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before you book
- Which sealant they’ll use, and why
- What guarantee comes with the work
- Are they insured?
- Is VAT in the price?
How we quote for external mastic
Call for a quick quote. What matters most is:
- How easy the joints are to reach
- The old material and how stubborn it is
- The type of sealant required
- The size of the job
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- Whether it has been sealed before
- A few pictures by email, if you can
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or email us.