Kent · England
New-build mastic & snagging in West Kingsdown, Kent
New build mastic in West Kingsdown from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked caulk along new skirting
- Frame joints opening as the plaster dries
- Untidy sealant flagged on a snagging list
How we handle new build mastic in West Kingsdown
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that is reasonable, but a seal that’s letting water through needs doing now. Common call-outs are for worktop and upstand sealant coming away and untidy sealant flagged on a snagging list, on windows & doors, bathrooms & en suites and skirting & floors.
For a new home in or near West Kingsdown, it’s worth checking the sealant early. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
All of our work is guaranteed for twelve months, in West Kingsdown and everywhere else we cover.

- Where
- West Kingsdown (TN15)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to several days, depending on the number of plots. Parking around West Kingsdown is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- Move anything stored near the joints
How to get a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear quote before we start.
Advice
Quotes for new build mastic in West Kingsdown
Some jobs are bigger than they look, and some smaller. The main factors:
- The old material and how stubborn it is
- Any working-time requirements on site
- Access and height
- The number of rooms or windows
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.
How the job changes by surface
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens suited to the job.
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant in a matching colour.
New build mastic around West Kingsdown
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.
In and around West Kingsdown, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
West Kingsdown is about 6 miles north-east of Sevenoaks, in Kent. We provide new build mastic to homes and businesses in West Kingsdown, as part of our work across Kent. Our Kent coverage runs to 922 places, and West Kingsdown is one of them. For nearby work, see our London page, about 19 miles away.
All of TN15 is within our area for new build mastic. Whether your property is on Church Road, London Road and Hever Wood Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out new build mastic in Maplescombe (1 mile north-west), Knatts Valley (1 mile south-west), East Hill (1 mile south-west), Fawkham Green (2 miles north-east) and Ash (2 miles north-east). We also work in nearby towns such as Maidstone (13 miles south-east), Dartford (7 miles north), Sevenoaks (6 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (8 miles north-east) and Tonbridge (10 miles south).
Around West Kingsdown
The nearest railway station is Eynsford station, about 2.6 miles north-west. Other landmarks nearby include Otford Heritage Centre (3.8 miles south-west) and Eynsford Castle (2.6 miles north-west).
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Put sealant faults on your snagging list early
- Resist patching a failed seal with a tube from the DIY shop
- Use the extractor fan every time you shower
- Do not wait for the house to settle if water is getting through
Follow the cure time we give you before the area gets wet. Silicone is normally left for about a day before water reaches them.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
Common questions in West Kingsdown
Is West Kingsdown in your area for new build mastic?
Yes, West Kingsdown is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Eynsford station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months, large or small.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
How much does new build mastic cost in West Kingsdown?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Do you need new build mastic in West Kingsdown?
Sealant applied onto damp surfaces does not bond well. Site programmes don’t always leave time for joints to dry first.
Look out for these signs:
- Sealant work across a run of new homes
- Cracked caulk along new skirting
- Gaps behind new kitchen upstands
- Joints pulling apart as timber shrinks
If you’ve bought a new home near Eynsford station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- Whether they’re fully insured
- Is VAT in the price?
- Whether you can choose the colour
- Whether they seal over old material or remove it
Why deal with it now?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. Around West Kingsdown, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What you get with us
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
- An ARBOMaster approved applicator
What we can’t put right
It helps to know what we can’t do too:
- Structural cracks in walls or ceilings
- Your warranty claim itself, which is between you and the builder
- Broken tiles or a split tray
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Windows & doors
- Skirting & floors
- Plot handovers
- Show homes
- Kitchens
- Bathrooms & en suites
