Kent · England
External & façade joints in Bexon, Kent
External mastic in Bexon from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Joints pointed up with cement by mistake
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
Honest limits
We’ll always be straight with you, so here’s what sealant cannot fix:
- Rising or penetrating damp from elsewhere in the wall
- Failed render or damaged cladding panels
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Where we work in Bexon
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Façade panels
- Render & cladding joints
External mastic in Bexon
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We’re often asked to deal with movement joints with cracked, split or missing sealant and cracked joints where brick meets render or frames, across concrete & block, façade panels and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Bexon is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
A 12-month guarantee comes as standard, so you are covered after we have gone.
- Where
- Bexon (ME9)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we are called out for in Bexon
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
Keep an eye out for these signs:
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
For landlords with property near Sittingbourne station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before booking
- Are they insured?
- How the joint is cleaned and prepared
- How long to leave it before use
- What product goes in the joint
What happens if it’s left?
Resealing a run of joints in one go is normally better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. In a small place like Bexon, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in Bexon
- We agree the colour with you first
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
Take a look at what affects the cost and our reviews.
Surface by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
The work is kept neat and contained to the area we’re working on. The job usually takes a few hours for a handful of joints, longer for a whole elevation, and we explain the cure time before we leave. Somewhere as small as Bexon, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
- Move anything stored near the joints
Get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
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Quotes for external mastic in Bexon
Jobs vary more than people expect. The main factors:
- The type of sealant required
- The size of the job
- Working hours on commercial sites
- How many areas need sealing
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
What to tell us for a quote
When you call or email, it’s useful to know:
- Where the job is, and your postcode
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
For a quote, ring 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.
External mastic in Bexon: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Bredgar Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near Church of St John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Bexon is about 3 miles south of Sittingbourne, in Kent. Wherever you are in the ME9 postcode area, we cover external mastic for homes and businesses. Across Kent, we cover 922 places, and Bexon is one of them. We also work in Chelmsford, about 31 miles from Bexon.
Work in ME9 is quoted and booked the same way as anywhere else. Neighbouring places we cover for external mastic include Tunstall (1 mile north), Dungate (2 miles east), Highsted (2 miles north-east), Heart's Delight (2 miles north) and Rodmersham Green (2 miles north-east). Within a short drive, we also cover Maidstone (8 miles west), Ashford (13 miles south-east), Sittingbourne (3 miles north), Whitstable (14 miles east), Faversham (8 miles east) and Minster (9 miles north-east).
Local landmarks in Bexon
We work in homes and buildings around Cromers Wood and Fulston Manor School, among other places. The closest station to Bexon is Sittingbourne station, about 2.9 miles north of the centre. A little further out are Sittingbourne Heritage Museum (2.8 miles north-east) and Bayford Court (3.1 miles north-east).
Nearby places to Bexon
Other services in Bexon
Bexon questions
Can you do external mastic in Bexon?
Yes. We work across London and the South East, and Bexon is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you cover smaller places like Bexon?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Do you work at height?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.
How much does external mastic cost in Bexon?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
How long does external mastic last?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our 12-month guarantee.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Bexon, along with the rest of our area.