Kent · England
Fant External Mastic
Professional external mastic in and around Fant, with old sealant always removed completely.
- Rain getting behind render or cladding at a joint
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
How we handle external mastic in Fant
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. If you have joints pointed up with cement by mistake and failed sealant between panels on a façade, we can help, whatever the surface.
Outbuildings, garages and conservatories around homes in places like Fant add more joints to look after. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
All of our work is guaranteed for twelve months, in Fant and everywhere else we cover.
- Location
- Fant (ME16, ME15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

What the job involves on each surface
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one.
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Landlord and commercial work in Fant
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Fant buildings and the weather
With historic houses such as Stoneacre (about 3.9 miles east) nearby, there’s older building stock in the area around Fant as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Jubilee Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Parish Church of St Andrew include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Fant is about 2 miles west of Maidstone, in Kent. Anywhere in ME16, we cover external mastic for homes and businesses. Across Kent, we cover 922 places, and Fant is one of them. You can also see our page for London, roughly 30 miles from Fant.
Every address in ME16 and ME15 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on Fant Lane, Glebe Lane and Burns Road or a nearby road, we can help. Main roads around Fant include the A26, which makes travel easy. If you’re just outside Fant, we cover East Farleigh (1 mile south), Kettle Corner (1 mile south-west), Dean Street (1 mile south), Barming Heath (1 mile west) and Hoppers Corner (1 mile south-west). Further out, we also cover Sittingbourne (12 miles north-east), Sevenoaks (13 miles west), Royal Tunbridge Wells (13 miles south-west), Gravesend (12 miles north-west), Tonbridge (10 miles south-west) and Northfleet (13 miles north-west).
Local landmarks in Fant
Locally, jobs take us to homes and businesses close to Oakwood Park Grammar School, The Bull Inn and St Augustine Academy and the streets around them. For rail, the closest station is East Farleigh station, about 0.8 miles south. Nearby you’ll also find Kent Fire Brigade Museum (1.2 miles south-east) and Fremlin Walk (1.4 miles north-east). Not far away are Boxley Hills and Burham Down.
Signs you need external mastic in Fant
Some movement joints have been pointed up with mortar. The joint can’t move, so the wall cracks somewhere else instead.
It’s worth asking for a quote if you see:
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Weeds or debris growing in open joints
- Joints where the bead has come unstuck
Rented homes near East Farleigh station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Whether VAT is included
- Which colour the sealant will be
What else we do in Fant
How it works
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. Parking around Fant is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Getting a quote
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear price before any work starts.
Read more
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Render that’s blown, hollow or coming away
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
What happens if it’s left?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. In an older home around Fant, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Fant
- You choose the colour before work begins
- Fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
Take a look at how sealant jobs are priced or our reviews.
FAQs for Fant
Can you do external mastic in Fant?
Yes. Our work covers London and the South East, and Fant is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Is Fant within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
