Kent · England
New-build mastic & snagging in Westenhanger, Kent
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Westenhanger and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between new skirting and floors
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
About our new build mastic in Westenhanger
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. We’re often asked to deal with sealant that never bonded to the surface and messy sealant that spoils new finishes, across skirting & floors, show homes and windows & doors.
Somewhere as small as Westenhanger, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Westenhanger (CT21)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
How it works
At the end, we look at the finished work together and explain the cure time. The visit itself usually takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. For a village or hamlet like Westenhanger, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- 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.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.
Advice
New homes and floors in Westenhanger
Westenhanger is within about 3 miles of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. 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.
For new homes near Westenhanger station, it’s worth checking the sealant early, while snags are still fresh.
Westenhanger is about 2 miles north-west of Hythe, in Kent. Jobs in Westenhanger get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Kent, we cover 922 places, and Westenhanger is one of them. For nearby work, see our Chelmsford page (51 miles or so).
All of CT21 is within our area for new build mastic. If you are just outside Westenhanger, we cover Newingreen (1 mile south), Berwick (1 mile south), Pedlinge (1 mile south-east), Lympne (1 mile south-west) and Sandling (1 mile east). We also work in nearby towns such as Ashford (8 miles north-west), Canterbury (13 miles north), Dover (12 miles east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles east).
Local landmarks in Westenhanger
In Westenhanger, that means homes and buildings near Brockhill Park Performing Arts College, Sandling Park and The Royal Oak Public House, among other places. Westenhanger has its own railway station: Westenhanger station. Nearby you’ll also find Hythe Museum (2.5 miles south-east) and Royal Victoria Hospital (5.8 miles east). Green spaces nearby include Hatch Park and Tolsford Hill.
Why it’s worth doing now in Westenhanger
A hairline gap at a skirting can wait, but a leaking seal cannot. Not sure whether yours can wait? You can phone 0345 464 0079 or email us with a few pictures and we will tell you. Where a wall is exposed, as many are in small places like Westenhanger, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- Rated 4.9 stars on Google
- Tidy, careful work
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
Read what affects the cost or what customers say.
What affects the quote in Westenhanger
There’s no set price list. The quote depends on:
- When we can work, for business premises
- Mould in or behind the old joints
- Which sealant suits the joint
- The number and length of the joints
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
When you call or email, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- Where the job is, and your postcode
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Avoid running a DIY bead over the old one
- Act quickly if a seal starts to leak
- Record problems with dated photos
- Wipe joints with warm soapy water
Watch the joints as the house settles. Small gaps can appear as the house dries, and they’re simple to reseal once movement has slowed.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
Do you need new build mastic in Westenhanger?
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
It’s worth asking for a quote if you see:
- Gaps between new skirting and floors
- Sealant that never bonded to the surface
- Second-fix sealing on new plots
- Frame joints opening as the plaster dries
In and around Westenhanger, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- What happens if the job turns out different
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- What product goes in the joint
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Baths and trays that move too much for sealant to cope with
- Disputes or warranty claims with your builder
- Structural cracks in walls or ceilings
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Show homes
- Bathrooms & en suites
- Kitchens
- Windows & doors
- Plot handovers
- Skirting & floors
Nearby places to Westenhanger
Other services in Westenhanger
Westenhanger: your questions answered
Do you cover smaller places like Westenhanger?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Westenhanger station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
My new home is still under warranty. Should I contact you?
Start with your builder while their snagging or warranty period runs. If that doesn’t work out, we’re happy to quote with our 12-month guarantee.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
How much does new build mastic cost in Westenhanger?
Size, access and the old material all affect the cost. Ask us for a quote.
Why has my new-build shower seal failed already?
Lots of new homes see sealant crack early. Rushed application on dusty surfaces makes it worse.
