Kent · England
External Mastic in Woodside Green
Professional external mastic in and around Woodside Green, with old sealant always removed completely and a 12-month guarantee.
- Failed sealant between panels on a façade
- Rigid filler in a joint that should flex
- Moss and dirt in joints with no sealant left
About our external mastic in Woodside Green
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. Common call-outs are for panel joints letting water in and water getting into walls through failed joints, on copings & trims, brickwork movement joints and joints between brick and frames.
Older homes in small places like Woodside Green may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Woodside Green (ME17)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from a few hours to several days, depending on the building, including the tidy-up. In a small place like Woodside Green, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or email us.
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What we’re called out for in Woodside Green
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.
People usually contact us when they notice something like this:
- Leaking joints around cladding and façade panels
- Weeds or debris growing in open joints
- Joints pointed up with cement by mistake
- Sealant pulling away from one side of the joint
For site and facilities teams at buildings such as The Lenham School, its movement joints, gutters and trims need looking after like any other building’s.
Before you book anyone
- Who does the work, and how experienced they are
- When the joint can take water or movement
- How hidden problems are handled
- What insurance they hold
Questions from Woodside Green
Is Woodside Green within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Woodside Green?
Yes. Our work covers London and the South East, and Woodside Green is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
How long does the job take?
As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer.
Can you match the colour of my brickwork?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so the joint doesn’t draw the eye.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Towns and villages near Woodside Green
What else we do in Woodside Green
Walls and rooflines in Woodside Green
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Leeds Castle (about 4.3 miles west) are a reminder that the area around Woodside Green 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.
Rented homes near Lenham station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as St Mary's Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Woodside Green is about 6 miles south of Sittingbourne, in Kent. Homes, rented property, offices and hotels in Woodside Green can book us for external mastic, old or new, large or small. The work is guaranteed for a year. 922 places in Kent are on our list, from the larger towns to small villages. We also work in Chelmsford, about 35 miles from Woodside Green.
Work in ME17 works the same way as everywhere else we cover. If you’re just outside Woodside Green, we cover West Street (1 mile north-west), Payden Street (1 mile east), Lenham (1 mile south-west), Warren Street (1 mile east) and Leadingcross Green (2 miles south-west). Further out, we also cover Maidstone (9 miles west), Ashford (10 miles south-east), Canterbury (15 miles east), Sittingbourne (6 miles north), Whitstable (15 miles north-east) and Faversham (8 miles north-east).
Local landmarks in Woodside Green
Locally, jobs take us to homes and businesses close to Kiln Wood. For rail, the closest station is Lenham station, roughly 1.5 miles south-west of the centre. Nearby you will also find Coldbridge Castle (3.9 miles south).
What affects the quote in Woodside Green
You’ll get a clear quote before we start. It’s based on:
- The old material and how stubborn it is
- When we can work, for business premises
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- The problem you’ve noticed
- How many joints, rooms or windows are involved
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job.
Different surfaces, different methods
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best year round.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Point out the joints to other trades
- Ask before painting over external sealant
- Walk round the building once a year and look at the joints
- Never let anyone fill a movement joint with mortar
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 early resealing is worth it.
What we cannot put right
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Rising or penetrating damp from elsewhere in the wall
- Walls that need new movement joints cut into them
- Cracked brickwork or render that needs a builder or plasterer
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
What we seal
- Façade panels
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Render & cladding joints
- Joints between brick and frames