Kent · England
External Mastic in Wanshurst Green
Professional external mastic in and around Wanshurst Green, with old sealant always removed completely and a 12-month guarantee.
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Plants rooting in failed movement joints
External mastic for homes and businesses in Wanshurst Green
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two. Common call-outs are for gaps where render, brick and frames meet and weeds or debris growing in open joints, across joints between brick and frames, copings & trims and concrete & block.
Older homes in small places like Wanshurst Green may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
We stand behind the work with a one-year guarantee, so you’re covered after we’ve gone.
- Where
- Wanshurst Green (TN12)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Places near Wanshurst Green
Other services in Wanshurst Green
How to look after the new joints
So the new joints stay in good condition:
- Don’t let climbing plants root in the sealant
- Show decorators and builders where the movement joints are
- Walk round the building once a year and look at the joints
- Ask before painting over external sealant
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick.
External mastic in Wanshurst Green: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to St Michael and All Angels Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Wanshurst Green is about 6 miles south of Maidstone, in Kent. Anywhere in TN12, we cover external mastic for homes and businesses. We cover 922 towns and villages across Kent, large and small. You can also see our page for Crawley, roughly 31 miles from Wanshurst Green.
We cover every part of TN12 for external mastic. If you’re just outside Wanshurst Green, we cover St Ann's Green (1 mile north), Milebush (1 mile north-west), Underling Green (1 mile north), Marden Thorn (1 mile south) and Cross-at-Hand (1 mile north-east). Larger places within reach include Maidstone (6 miles north), Ashford (15 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (11 miles west), Tonbridge (11 miles west) and Kings Hill (8 miles north-west).
What’s near Wanshurst Green
The closest station to Wanshurst Green is Marden station, about 1.2 miles west of the centre. Other landmarks nearby include South East Romany Museum (0.5 miles south-west) and Sutton Valence Castle (4.1 miles north-east).
Leave it or put it right?
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way. In a small place like Wanshurst Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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.
Why us?
- Tidy, careful work
- One-year guarantee on every job
- Arbo and Everbuild products
- You choose the colour before work begins
Read what affects the cost and what customers say.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. For a village or hamlet like Wanshurst Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
How to get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Advice
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Your questions about external mastic in Wanshurst Green
Will you come out to Wanshurst Green?
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.
I let a flat near Marden station. Can you help?
Yes. We work for landlords and letting agents as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Why do you put foam in the joint first?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
What is a movement joint?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or send us an email.
Common problems we fix in Wanshurst Green
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Common reasons people contact us are:
- Rigid filler in a joint that should flex
- Water getting into walls through failed joints
- Panel joints letting water in
- Hard, crazed mastic that has stopped moving
If you let a flat or house near Marden station, outside joints that have cracked can let damp into a rental, so check them between lets.
Before you book anyone
- Is VAT in the price?
- Whether they’re fully insured
- What preparation is included
- What guarantee comes with the work
What affects the cost of external mastic
The price is agreed before any work begins. It’s based on:
- How easy the joints are to reach
- The size of the job
- Mould in or behind the old joints
- The product the joint needs
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Asking for a quote
What to tell us when you ask for a quote:
- The type of property
- The address or postcode of the job
- How many joints, rooms or windows are involved
- Whether it has been sealed before
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand.