Kent · England
New-build mastic & snagging in South Willesborough, Kent
Problem with your new-build sealant joints in South Willesborough? We cut out the old, prepare the joints and apply the right sealant.
- Second-fix sealing on new plots
- Beads laid onto grit and dust from the build
- New-build shower sealant that has already split
New build mastic in South Willesborough, done properly
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you have beads laid onto grit and dust from the build and plot mastic for developers ahead of handover, we can put it right, whatever the surface.
Homes around South Willesborough range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. The sealant at skirtings and thresholds has to suit the floor it meets.
Our work is backed for twelve months.
- Place
- South Willesborough (TN24, TN23)
- Region
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
If you are 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. In an older home around South Willesborough, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why South Willesborough clients choose us
- White, clear, grey or coloured to suit, where the product allows
- An ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
- Old sealant always removed completely
Take a look at how sealant jobs are priced or our reviews.
How it works
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. Parking around South Willesborough is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Getting a quote
If you are in South Willesborough and need new build mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
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Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
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, and the work is guaranteed for a year.
Landlord and commercial work in South Willesborough
Letting agents and landlords in South Willesborough can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Signs you need new build mastic in South Willesborough
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
Common reasons people contact us include:
- Sealant that never bonded to the surface
- Gaps opening as the house dries out and settles
- Frame joints opening as the plaster dries
- Leaking shower tray seals in a new home
Around South Willesborough, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- Which colour the sealant will be
- What guarantee comes with the work
- Is VAT in the price?
- What insurance they hold
How we quote for new build mastic
We quote each job individually. These are the things that affect it:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- Any working-time requirements on site
- The number of rooms or windows
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- The address or postcode of the job
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
New build mastic around South Willesborough
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Ashford International station, it’s worth checking the sealant early, while snags are still fresh.
South Willesborough is about 1 mile south-east of Ashford, in Kent. South Willesborough gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 922 places in Kent are on our list, from the larger towns to small villages. Chelmsford is on our list too, around 45 miles away.
Postcode districts we cover here for new build mastic: TN24 and TN23. We cover properties on Bath Road, Mead Road and Royds Road. Other places close to South Willesborough include Newtown (1 mile south-west), Willesborough (1 mile north-east), Park Farm (1 mile south-west), Finberry (1 mile south) and Ashford (1 mile north-west). Within a short drive, we also cover Canterbury (13 miles north-east), Folkestone (13 miles east), Faversham (13 miles north), Hythe (9 miles south-east), Davington (13 miles north) and Preston (12 miles north).
Landmarks near South Willesborough
We work in homes and buildings around Ashford Green Corridors, The Albion Inn and The North School, among other places. The closest station to South Willesborough is Ashford International station, about 0.9 miles north-west. Well-known places in the area include Ashford Designer Outlet (0.5 miles north-west) and William Harvey Hospital (1.3 miles north-east). Open spaces near South Willesborough include Hatch Park.
Different surfaces, different methods
Skirting and floors
Gaps under skirting are one of the most common new-build snags. A flexible sealant closes it without cracking like caulk.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out with baths filled first.
Nearby places to South Willesborough
What else we do in South Willesborough
South Willesborough questions
Will you come out to South Willesborough?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I let a flat near Ashford International station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Do you have insurance?
Yes. We are fully insured.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. We clean and prime joints properly to keep callbacks down.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Where is Mr Mastic based?
We work from Crawley. We cover South Willesborough and the rest of Kent, along with the rest of our area.
Can you work from my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can. We’ll tell you if anything on it is not a sealant job.