Kent · England
External & façade joints in South Green, Kent
We cover South Green for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
- Water getting into walls through failed joints
How it works
The work is kept neat and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. Somewhere like South Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
- Mention if the joints have been sealed before
How to get a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will take it from there.
Advice
About our external mastic in South Green
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We’re often asked to deal with movement joints with cracked, split or missing sealant and moss and dirt in joints with no sealant left, across joints between brick and frames, concrete & block and copings & trims.
Somewhere as small as South Green, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
All of our work is guaranteed for twelve months.
- Place
- South Green (ME9)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near South Green
Also in South Green
Your questions about external mastic in South Green
Is South Green within the area you cover?
Yes. South Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is South Green in your area for external mastic?
Yes. We work across London and the South East, and South Green is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall and the joint fails. If it has already been filled, we can usually cut it out and reseal it.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access.
Will the new joint stand out?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides with primer where required.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Is the work guaranteed?
Yes. All our work carries a one-year guarantee.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Do not let climbing plants root in the sealant
- Show decorators and builders where the movement joints are
- Wash walls gently around the sealant
- Keep movement joints as flexible joints, not mortar
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Adding movement joints to masonry that has none
- Failed render or damaged cladding panels
- Movement that’s more than a sealant joint can take
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Where we work in South Green
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Façade panels
How we quote for external mastic
Your quote is based on your job. We look at:
- Any working-time requirements on site
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- The amount of work
Leaving a failed joint usually makes the job bigger, not smaller. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job and send pictures if you have them.
When to call us in South Green
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
These are the problems we’re asked about most:
- Cracked joints where brick meets render or frames
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
- Rigid filler in a joint that should flex
For an older house near a landmark such as St Mary Magdalene Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- Whether they’re fully insured
- How the colour is chosen
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
South Green buildings and the weather
With historic houses such as Leeds Castle (about 4.4 miles south) nearby, there’s older building stock in the area around South Green as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Newington station, split movement joints are easy to miss on a rental until damp shows inside.
South Green is about 4 miles south-west of Sittingbourne, in Kent. For external mastic in and around South Green, please phone 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base. South Green is one of 922 towns and villages in Kent we cover. We also work in Chelmsford, about 30 miles from South Green.
We work across ME9 for external mastic. We also cover the places around South Green: Stockbury (1 mile north-west), Oad Street (2 miles north-east), Silver Street (2 miles east), Bredgar (2 miles east) and Danaway (2 miles north-east). Within a short drive, we also cover Maidstone (6 miles south-west), Ashford (15 miles south-east), Sittingbourne (4 miles north-east), Gravesend (14 miles north-west), Faversham (10 miles east) and Minster (10 miles north-east).
Landmarks near South Green
We work in homes and buildings around Stockbury Hill Wood and The Three Squirrels pub, among other places. The nearest railway station is Newington station, about 3 miles north. Other landmarks nearby include Leeds Castle (4.4 miles south) and KIMS hospital (4.5 miles west). Green spaces nearby include Detling Hill.
What the job involves on each surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.