Kent · England
External & façade joints in Biddenden, Kent
External mastic for Biddenden and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
- Old sealant gone brittle and cracked
External mastic in Biddenden, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the line blends in. If you’re dealing with old sealant gone brittle and cracked and water getting into walls through failed joints, we can put it right, on façade panels, brickwork movement joints and render & cladding joints alike.
Around Biddenden, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
Our work is backed for twelve months.
- Location
- Biddenden (TN27)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.
Other services in Biddenden
What affects the quote in Biddenden
The price is agreed before any work begins. It’s based on:
- Working hours on commercial sites
- The product the joint needs
- Mould in or behind the old joints
- How many areas need sealing
Doing several joints on 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
You do not need to know the technical terms. Just tell us:
- Whether it’s a home or a business
- Where the job is, and your postcode
- Any access issues, like height or stairs
- What’s wrong with the joints now
If you’re in Biddenden and need external mastic, phone 0345 464 0079 or send 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.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Have failed joints looked at early
- Wash walls gently around the sealant
- Keep water from gutters off the wall
- Show decorators and builders where the movement joints are
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants are not designed to be painted and spoil the finish.
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, all bigger jobs than a reseal.
When to call us in Biddenden
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
The problems people generally mention when they call are:
- Gaps where render, brick and frames meet
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Weeds or debris growing in open joints
If you live in an older home near Parish Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- Who does the work, and how experienced they are
- Are they insured?
- How the colour is chosen
- Is the old sealant removed completely?
Leave it or put it right?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Where a wall is exposed, as many are in small places like Biddenden, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
Why Biddenden customers choose us
- We are fully insured
- ARBOMaster approved applicator
- Colour agreed with you before we start
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and what customers say.
What we do, step by step
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. For a village or hamlet like Biddenden, 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.
- 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.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
Get a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.
Advice
What external mastic looks like in Biddenden
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Headcorn station, outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as John Mayne Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Biddenden is about 10 miles west of Ashford, in Kent. If you need external mastic in Biddenden, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Kent. Biddenden is one of 922 places in Kent we cover. There’s also a page for Crawley, about 36 miles away.
We cover every part of TN27 for external mastic and the streets around it. That includes homes and businesses on High Street, The Meadows and Cloth Hall Gardens and the roads around them. Neighbouring places we cover for external mastic include Curteis' Corner (1 mile north-east), Woolpack Corner (1 mile south-east), Standen (1 mile north-east), Hareplain (1 mile north-west) and Stede Quarter (1 mile east). Within a short drive, we also cover Maidstone (11 miles north-west), Ashford (10 miles east), Kings Hill (15 miles north-west), Foley Park (12 miles north-west), Paddock Wood (12 miles west) and Tenterden (4 miles south-east).
Local landmarks in Biddenden
Typical jobs here are in homes near The Red Lion Inn and the streets around them. The closest station to Biddenden is Headcorn station, roughly 3.5 miles north of the centre. Well-known places in the area include Benenden Hospital (2.3 miles south-west) and Sissinghurst Castle (2.6 miles west).
Biddenden questions
Is Biddenden within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do external mastic in Biddenden?
Yes, Biddenden is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can new sealant go over the old?
No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Landlord and commercial work in Biddenden
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.