Kent · England
External Mastic in Bells Yew Green
Professional external mastic in and around Bells Yew Green, with every bit of old sealant taken out first and a one-year guarantee.
- Rain getting behind render or cladding at a joint
- Sealant that has lost its bond to the brick or render
- Gaps where render, brick and frames meet
How we handle external mastic in Bells Yew Green
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we don’t skip that step. Typical jobs include weathered mastic that no longer stretches and damp patches traced to an open external joint, across render & cladding joints, façade panels and concrete & block.
Around Bells Yew Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.
All our work comes with a one-year guarantee, wherever you are in Kent.

- Place
- Bells Yew Green (TN3)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What external mastic looks like in Bells Yew Green
Historic houses like Wadhurst Castle (about 3 miles south-east) are a reminder that the area around Bells Yew Green has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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.
For landlords with property near Frant station, split movement joints are easy to miss on a rental until damp shows inside.
Bells Yew Green is about 3 miles south-east of Royal Tunbridge Wells, in Kent. From the centre of Bells Yew Green to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Kent coverage runs to 922 places, and Bells Yew Green is one of them. For nearby work, see our Crawley page, about 21 miles away.
All of TN3 is within our area for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Bayham Road, Middle Road and Broomfield or anywhere close by, our applicators can take on the job. Other places close to Bells Yew Green include Hawkenbury (2 miles north-west), Broadwater Down (2 miles north-west), Royal Tunbridge Wells (3 miles north-west), High Brooms (3 miles north) and Rusthall (4 miles north-west). Within a short drive, we also cover Maidstone (15 miles north-east), Sevenoaks (13 miles north), Tonbridge (7 miles north), Kings Hill (13 miles north), Paddock Wood (6 miles north-east) and Park Wood (15 miles north-east).
Local landmarks in Bells Yew Green
Bells Yew Green has its own railway station: Frant station. A little further out are The Corn Exchange (2.4 miles north-west) and Tunbridge Wells Homeopathic Hospital (2.7 miles north-west). Not far away are Bewl Water and Broadwater Warren RSPB Reserve.
Bells Yew Green: your questions answered
Is Bells Yew Green within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Frant station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
What does external mastic cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or email us with a short description of the job.
How long does external mastic take?
It depends on the size of the job, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We’ll tell you when we quote.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Nearby places to Bells Yew Green
More services for Bells Yew Green
Leave it or put it right?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Older cottages and farmhouses around Bells Yew Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit generally makes better use of the time than several visits. We will give you a clear price for the lot.
What you get with us
- Arbo and Everbuild products
- Sealant colour chosen to suit
- Homes, businesses and hotels
- Over 20 years’ experience
Read our cost guide and our reviews.
Common problems we fix in Bells Yew Green
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Keep an eye out for these signs:
- Hard, crazed mastic that has stopped moving
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
- Gaps where render, brick and frames meet
Historic houses such as Wadhurst Castle, about 3 miles south-east, show how far back building around Bells Yew Green goes, and older homes nearby need a sealant that suits their walls.
What your quote should include
- What happens if the job turns out different
- Who does the work, and how experienced they are
- Whether they’re fully insured
- What guarantee comes with the work
What we do, step by step
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes anything from a few hours to several days, depending on the building from start to finish. For a village or hamlet like Bells Yew Green, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Read more
How the job changes by 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.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
What affects the cost of external mastic
We do not publish a price list, because jobs vary so much. The quote depends on:
- Access and height
- The number of rooms or windows
- Mould in or behind the old joints
- The number and length of the joints
What you pay reflects the work, not guesswork. That is why we ask a few questions first and agree the price before starting.
Helping us quote
There’s no need for technical detail. Just tell us:
- Any previous sealing or DIY work
- The type of property
- The address or postcode of the job
- What’s wrong with the joints now
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
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.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Render that’s blown, hollow or coming away
- Subsidence or other structural problems
- Adding movement joints to masonry that has none
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Bells Yew Green
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
