Kent · England
New Build Mastic in Dunkirk
New build mastic for Dunkirk, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant applied over dusty or wet surfaces
- Leaking shower tray seals in a new home
- Kitchen sealant that has pulled off the wall
How we handle new build mastic in Dunkirk
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a seal that is letting water through needs doing now. If you have cracked sealant around new window and door frames and sealant that never bonded to the surface, we can put it right, whatever the surface.
Work in a small place like Dunkirk just needs the journey and access planning, and once on site, the job is the same as anywhere.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.

- Place
- Dunkirk (ME13)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours in a single home. Somewhere like Dunkirk 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.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or email us.
Read more
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Keep pictures and emails about snagging items
- Use the extractor fan every time you shower
- Get a leaking seal dealt with right away
- Clean sealant with mild detergent, not abrasives
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.
Common problems we fix in Dunkirk
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.
Most people get in touch when they notice something like this:
- Gaps opening as the house dries out and settles
- Sealant work across a run of new homes
- Frame joints opening as the plaster dries
- Beads laid onto grit and dust from the build
In and around Dunkirk, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What insurance they hold
- How much experience the applicator has
- What guarantee comes with the work
- Which colour the sealant will be
Nearby places to Dunkirk
More services for Dunkirk
Your questions about new build mastic in Dunkirk
Can you help a landlord with a rental near Selling station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Is Dunkirk within the area you cover?
Yes, Dunkirk is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is there a guarantee?
Yes. All our work carries our 12-month guarantee.
How long does new build mastic take?
Most jobs take a few hours for most snagging lists, longer for a run of plots, including the preparation. Your quote will say how long we expect yours to take.
Can you work from my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can. We will flag anything that needs another trade.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Tell us what you’d like when you get a quote.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Landlord and commercial work in Dunkirk
For anyone letting property in or around Dunkirk, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
We also work for property managers and facilities teams in Dunkirk and across Kent. We can quote a run of properties together, and we’re fully insured for the work.
Quotes for new build mastic in Dunkirk
The quote reflects the job in front of us. We look at:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- Access and height
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The rough size of the job
- The type of property
- The problem you’ve noticed
- Where the job is, and your postcode
If you’re in Dunkirk and need new build mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
When something else is needed
Sealant isn’t the answer to every problem, and we will tell you before work begins. Sealant won’t put right:
- A tray or bath that isn’t properly supported, until it’s fixed
- Broken tiles or a split tray
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Windows & doors
- Show homes
- Skirting & floors
New build mastic in Dunkirk: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Selling station, the sealant around baths, showers and frames is worth checking in the first year or two.
Dunkirk is about 4 miles south-east of Faversham, in Kent. Homes, rented property, offices and hotels in Dunkirk is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our Kent coverage runs to 922 places, Dunkirk among them. For nearby work, see our Chelmsford page (37 miles or so).
Here we cover the ME13 postcode area for new build mastic. If you need new build mastic at a property on London Road and Courtenay Road or a nearby road, we can help. If you are just outside Dunkirk, we cover Boughton under Blean (1 mile west), Winterbourne (1 mile south-west), Hickmans Green (1 mile west), Oversland (1 mile south-west) and South Street (2 miles south-west). Further out, we also cover Ashford (12 miles south-west), Canterbury (5 miles east), Sittingbourne (11 miles west), Whitstable (5 miles north-east), Faversham (4 miles north-west) and Herne Bay (9 miles north-east).
Around Dunkirk
Locally, jobs take us to homes and businesses close to The Red Lion pub and Mount Ephraim Gardens and the streets around them. Dunkirk’s nearest station is Selling station, about 1.9 miles south-west. Other landmarks nearby include Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (4.4 miles east). Not far away are Blean Woods RSPB Reserve.
Why deal with it now?
If you’re still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Older cottages and farmhouses around Dunkirk can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why Dunkirk customers choose us
- White, clear, grey or coloured to suit, where the product allows
- Colour agreed with you before we start
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
Read how sealant jobs are priced and customer reviews.
