Mastic contractors in Dunton Green
Work needed on a mastic package in Dunton Green? We assess it, carry out the work and guarantee our workmanship for 12 months.
- New external sealant already peeling away
- Failed sealant in an existing building being refurbished
- Frame perimeters left unsealed or poorly sealed
Need construction mastic in Dunton Green?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Our process
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. If others near Dunton Green need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- Drawings, specification and programme come to us.
- We take off quantities and return a fixed quote.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Every joint is cleaned, set to depth and sealed with the specified product.
- Snags are cleared and the package signed off with our 12-month guarantee.
Getting the site ready
- Point out parking and an unloading spot
- Let building users know which areas are affected
- Confirm the product named in the specification
Get a fixed quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to ring 01277 525 020 or send details through our quote form.
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Construction mastic in Dunton Green
Buyers, tenants and clients notice sealant lines long before they notice the structure. A smeared bead round a window or a gap behind a worktop ends up on the snag list. We seal so the snag list stays short, area by area through the programme. If you have perimeter gaps outside the sealant’s range and mastic snags holding up handover, we can put it right, on internal decorators’ caulk, sanitary and kitchen joints and floor and skirting junctions alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Dunton Green is the same: the right product in a properly prepared joint.
Conversions of older rural buildings near smaller places such as Dunton Green bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is usually what’s needed.
Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Where
- Dunton Green (TN13, TN14)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Should maintenance staff do it?
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Honest limits
We check first that sealant really is the fix. It won’t put right:
- Rework caused by others damaging completed areas
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Specifying the product where the designer hasn’t
If in doubt, give us a call on 01277 525 020 or use the quote form and we will say what we think.
What we seal
- Floor and skirting junctions
- Cladding and panel joints
- Window and door perimeters
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Brick and block movement joints
Why act early in Dunton Green
Some packages split mastic across the window fitter, kitchen fitter and plumber. In practice it often means different standards, gaps in responsibility and snags nobody owns. One mastic subcontractor for the lot keeps it simple, with the same standard on every plot. Around Dunton Green, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why us?
- Old sealant cut out, never sealed over
- Work carried out by CSCS-carded applicators
- Fully insured
- Products installed to the manufacturer’s instructions
See what affects the cost and our accreditations and insurance.
Questions about Dunton Green
Is Sevenoaks Business Centre, near Dunton Green, within your area?
Yes. Our area takes in Dunton Green and its surroundings, with estates and business parks such as Sevenoaks Business Centre included. A few photographs and the unit address let us price the work.
Is a hospital such as Sevenoaks Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do you take on mastic snagging only?
Yes, we can. Send the snag list or photos and we will price it.
Do you guarantee new-build sealant work?
Each package is backed by a 12-month guarantee. We carry five million pounds of public liability insurance.
How much does the work cost?
There isn’t a price list, because every site is different. Send photographs or drawings and we’ll price it at a fixed figure.
Do your applicators hold CSCS cards?
CHAS and Constructionline are both in place, and each applicator is CSCS-carded. Public liability insurance is in place.
Can you quote from photographs?
That depends on the size and complexity of the job. Simple work can often be priced from photographs, and bigger or more complex jobs typically get a visit.
When to call us in Dunton Green
On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding, so preparation matters as much here as on a reseal.
Site and facilities staff are often the first to spot these:
- Failed sealant in an existing building being refurbished
- External joints sealed in damp or cold conditions that are now failing
- Window and door perimeters that won’t pass inspection
- Sealant knocked or painted over by other trades
On a healthcare site such as Sevenoaks Hospital (1.2 miles east of Dunton Green), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Before you book anyone
- Is the sealant right for the movement and the substrate?
- Do they follow the manufacturer’s priming guidance?
- How joint depth will be controlled
- What site paperwork they can supply
Building owners, agents and FMs in Dunton Green
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.
Mastic packages on Dunton Green sites
Dunton Green lies roughly 18 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme. There are a number of hotels within about 2 miles of Dunton Green. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.
Hotels like Donington Manor Hotel (0.7 miles north-west of Dunton Green) rarely close for long, so refurbishment mastic is phased floor by floor. For contractors refurbishing units at places like Sevenoaks Business Centre, which lies east of Dunton Green, the mastic covers cladding panels, roller-door and window perimeters.
Dunton Green is about 1 mile north-west of Sevenoaks, in Kent. Our applicators travel to Dunton Green for work on mastic packages. Dunton Green is one of 931 places in Kent on our list. For work in that direction, see our London page (18 miles or so).
We cover the TN13 and TN14 postcode districts. Among the streets we cover are Station Road, Campion Square and London Road. 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). Further afield, our area takes in 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).
Local landmarks in Dunton Green
Recent enquiries here include premises near Montreal Park, The Miners Arms and Trinity School. There’s a railway station in Dunton Green itself: Dunton Green station. Nearby you will also find 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.