Kent · England
External & façade joints in Woodhatch, Kent
External mastic in Woodhatch from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
External mastic in Woodhatch
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it, and we don’t skip that step. Typical jobs include panel joints letting water in and water getting into walls through failed joints, on concrete & block, façade panels and copings & trims.
Around Woodhatch, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
Big or small, it’s backed by our 12-month guarantee.
- Place
- Woodhatch (TN11, TN14)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
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.
Why deal with it now?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Woodhatch can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why us?
- A 12-month guarantee on all work
- Sealant colour chosen to suit
- Fully insured
- Arbo and Everbuild products
Take a look at how sealant jobs are priced and our reviews.
Your questions about external mastic in Woodhatch
I let a flat near Hildenborough station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Do you cover Woodhatch for external mastic?
Yes. We work across London and the South East, and Woodhatch is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in.
Can a movement joint be filled with mortar?
No. Rigid materials can’t move with the wall, so the joint stops doing its job. If it has already been filled, we can generally cut it out and reseal it.
Are you fully insured?
Yes, we are fully insured.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Do you guarantee your work?
Yes. All our work carries our one-year guarantee.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Movement that is more than a sealant joint can take
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Woodhatch
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
How to look after the new joints
Looking after new joints is easy:
- Never let anyone fill a movement joint with mortar
- Fix overflowing gutters above sealed joints
- Leave the joints unpainted unless we have said otherwise
- Wash walls gently around the sealant
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so neither cracks the other.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and protects the render itself.
Nearby places to Woodhatch
What else we do in Woodhatch
Outside joints around Woodhatch
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Knole House (about 3 miles north) nearby, there’s older building stock in the area around Woodhatch as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
For site and facilities teams at buildings such as Weald Community Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Hildenborough station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Historic houses such as Knole House, about 3 miles north, show how far back building around Woodhatch goes, and older homes nearby need a sealant that suits their walls.
Woodhatch is about 4 miles north-west of Tonbridge, in Kent. For external mastic in and around Woodhatch, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Kent from our Crawley base. Our Kent coverage runs to 922 places, Woodhatch among them. There’s also a page for Crawley, about 19 miles away.
We work across the TN11 and TN14 postcode area for external mastic and the streets around it. Close by, we work in Hall's Green (1 mile west), Sevenoaks Weald (1 mile north-west), Charcott (2 miles south-west), Goathurst Common (3 miles north-west) and Ide Hill (3 miles north-west). Larger places within reach include Maidstone (14 miles east), Dartford (15 miles north), Sevenoaks (4 miles north), Royal Tunbridge Wells (7 miles south-east), Tonbridge (4 miles south-east) and Swanley (12 miles north).
Landmarks near Woodhatch
Woodhatch’s nearest station is Hildenborough station, about 1.3 miles south-east. Well-known places in the area include Chiddingstone Castle (3.6 miles south-west) and Sevenoaks Museum (3.4 miles north). Open spaces near Woodhatch include Dryhill Nature Reserve and Barden Lake.
Quotes for external mastic in Woodhatch
The quote reflects the job in front of us. We take into account:
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- How much there is to do
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Asking for a quote
What to tell us when you ask for a quote:
- How we’d reach the joints
- What’s wrong with the joints now
- A few photos by email, if you can
- Where the job is, and your postcode
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
The process
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Woodhatch needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
Get a quote
For external mastic in Woodhatch, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.