Kent · England
External & façade joints in Sandling, Kent
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Sandling and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
External mastic for homes and businesses in Sandling
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. If you have joints where the bead has come unstuck and movement joints with cracked, split or missing sealant, we can put it right.
Somewhere as small as Sandling, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Location
- Sandling (ME14, ME16, ME20)
- Region
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need external mastic in Sandling
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Any of these means the joints need attention:
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Panel joints letting water in
- Brick movement joints where the sealant has split
If you look after a building such as Sandling Primary School, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
- What the cure time is
- What guarantee comes with the work
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Check the sealant is paintable before painting near it
- Tell anyone working on the walls about the movement joints
- Do not let climbing plants root in the sealant
- Fix overflowing gutters above sealed joints
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
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.
What external mastic looks like in Sandling
Historic houses like Stoneacre (about 4.2 miles south-east) are a reminder that the area around Sandling 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. 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.
For an older house near a landmark such as St Paul's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Maidstone East station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Sandling is about 1 mile north-west of Foley Park, in Kent. Every kind of property in Sandling can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Across Kent, we cover 922 places, and Sandling is one of them. For nearby work, see our London page, about 30 miles away.
Our applicators cover all of the ME14, ME16 and ME20 postcode area for external mastic and the streets around it. That includes homes and businesses on Lock Lane, Grange Lane and Tyland Lane. With the M20 close by, Sandling is easy for our applicators to reach for external mastic. Nearby, we also carry out external mastic in Abbey Gate (1 mile north), Ringlestone (1 mile south), Harbourland (1 mile east), Penenden Heath (1 mile south-east) and Foley Park (1 mile south-east). We also work in nearby towns such as Sittingbourne (10 miles east), Sevenoaks (14 miles west), Gravesend (11 miles north-west), Tonbridge (12 miles south-west), Northfleet (12 miles north-west) and Minster (15 miles north-east).
Around Sandling
Locally, jobs take us to homes and businesses close to The Yew Tree pub, Tyland Barn and The Maplesden Noakes School, among other places. The nearest railway station is Maidstone East station, about 1.4 miles south. Well-known places in the area include KIMS hospital (2 miles south-east) and Allington Castle (less than half a mile south-west). The countryside around Sandling includes Burham Down and Boxley Hills.
Places near Sandling
More services for Sandling
For landlords and businesses
For anyone letting property in or around Sandling, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
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 that we can handle for you.
What affects the cost of external mastic
Jobs vary more than people expect. What affects the quote:
- Whether there’s mould to deal with
- The number and length of the joints
- How many rooms, windows or areas are involved
- Which sealant suits the joint
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
What we need to know
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- How we’d reach the joints
- The problem you’ve noticed
Need a quote? Please call 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
Common questions in Sandling
Is Sandling within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Sandling for external mastic?
Yes. We work across London and the South East, and Sandling is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you work at height?
It depends on the building. Send us pictures and a rough idea of the height and we’ll confirm how they can be reached safely.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or email us.
What we do, step by step
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. For a village or hamlet like Sandling, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Clear the area around the work
How to get a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Advice
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Surface by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before sealing.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.