Facade Sealing in Dunton Green
Planning work on a facade joint in Dunton Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Failed sealant on precast panel joints
- Air leaks through failed facade joints
- Hard, chalky sealant that no longer flexes
Facade sealing in Dunton Green
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How the job changes by surface
Coping and flashing joints
Coping and flashing joints are included where sealant is the specified fix. They sit in the most exposed positions on the building, so preparation and product choice matter.
Precast concrete panels
Concrete edges can be dusty or weak. We clean back to sound material and flag edges that need repair before sealing.
Facade sealing in Dunton Green
Facade sealants sit in the sun, rain and frost every day, so they don’t last indefinitely. Life depends on movement, weathering, product choice and the quality of the original work. When the time comes, we cut the old sealant out completely and start again. We work on stone and brick facade joints, coping and flashing joints and cladding panel joints, and what we’re called in for most is discoloured or dirty facade joints and perimeter joints where frames meet the structure. Looking for mastic applicators who cover Dunton Green? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Construction in and around smaller places such as Dunton Green is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Place
- Dunton Green (TN13, TN14)
- Region
- Kent
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Places near Dunton Green
What else we do in Dunton Green
When to call us in Dunton Green
Cohesive failure, a split through the middle of the bead, points to an over-stretched joint. The joint may be too narrow, the bead too thin or the sealant the wrong movement class.
What tends to prompt an enquiry:
- New sealant peeling off old mastic
- Facade joints cracked through the middle
- Hard, chalky sealant that no longer flexes
- Cladding panel joints that have opened up
New units and refits on sites such as Sevenoaks Business Centre, 1.1 miles east of Dunton Green, need their panel and perimeter joints sealed to the specification.
What your quote should include
- Proof of insurance
- Whether old or failed sealant will be cut out, not overlaid
- How they’ll work around occupants
- Their pre-qualification and accreditations
New build and refits around Dunton Green
The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so external mastic is timed for workable conditions and agreed with the site manager. Central London is about 18 miles from Dunton Green. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes.
For contractors at a school such as Dunton Green Primary School, sealing has to be finished before term starts. Older buildings in the area around Dunton Green, such as Knole House (2.5 miles south-east of Dunton Green), need care when sealed: the product has to suit soft or historic materials.
Dunton Green is about 1 mile north-west of Sevenoaks, in Kent. Dunton Green sits inside our coverage and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Dunton Green is one of 931 places in Kent on our list. There’s a separate page for London, about 18 miles away.
We cover the TN13 and TN14 postcode districts. Among the streets we cover are Station Road, Campion Square and London Road, and sites on any of them can send details for a fixed quote. Sites close to Dunton Green are covered too, including Riverhead (1 mile south), Chipstead (1 mile south-west), Bessels Green (1 mile south-west), Sevenoaks (1 mile south-east) and Chevening (2 miles west). Nearby towns on our patch include Dartford (11 miles north), Royal Tunbridge Wells (12 miles south), Gravesend (13 miles north-east), Tonbridge (8 miles south-east), Northfleet (12 miles north-east) and Swanley (7 miles north).
Landmarks near Dunton Green
We work on buildings around Montreal Park, The Miners Arms and Trinity School. Dunton Green has its own railway station: Dunton Green station. A little further out are Otford Heritage Centre (1.5 miles north-east) and Kemsing Castle Bank (2.8 miles east). For a walk, there’s Dryhill Nature Reserve and Betsom's Hill.
Aftercare for building managers
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Add perimeter sealant to planned maintenance checks
- Confirm the survey covers external sealants in older buildings
- Never let anyone seal over old sealant
- Note when each elevation was last resealed
After heavy weather, check vulnerable elevations for signs of water inside. An early report usually means a small reseal rather than a bigger repair.
Planned resealing is cheaper than reacting to leaks. Inspect regularly and reseal sections as they start to fail.
Your questions answered
Is Dunton Green off your patch?
No. Places such as Dunton Green are covered as much as the big towns. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Can you work at a site such as Sevenoaks Business Centre, by Dunton Green?
Yes. Estates, retail parks and business parks around Dunton Green, Sevenoaks Business Centre among them, are all within reach. A few photographs and the unit address let us price the work.
Do you seal on top of existing sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Can you follow the specification on our project?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
When is resealing likely to be due?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
How long does a typical visit take?
We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.
Can you work in cold or wet weather?
We can work through the year, but sealant needs a dry joint and temperatures within the product’s range. Cold, damp mornings can delay a start, so we plan around the forecast.
What we can’t put right
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Arranging specialist high-level access, which is planned with the client
- Joints too narrow for the movement they take, which need redesign
- Replacing glass or failed glazing units
If you are not sure, just phone 01277 525 020 or email us and we will give you a straight answer before you book.
Surfaces we seal
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Shopfront frames
- Cladding panel joints
- Window and door perimeters
From enquiry to sign-off
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes anything from a single day to several weeks, depending on joint lengths, access and the weather, and our waste is bagged and taken away as we go. Smaller jobs around Dunton Green can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- We plan access and the order of elevations with the client.
- We only seal when joints are dry and within the product’s temperature range.
- Each joint is cut out and the edges inspected.
- Joints are cleaned, primed if required and fitted with backing rod.
- Sealant is gunned in and tooled hard onto both faces.
- Once signed off, the work carries our 12-month guarantee.
What we need from you
- Warn occupants and staff about the work
- Let us know about inductions and permits
- Tell us your opening times and when work is allowed
Request a quote
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Related advice
Should maintenance staff do it?
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.