Kent · England
New-build mastic & snagging in Stockbury, Kent
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Stockbury and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Second-fix sealing on new plots
Your questions about new build mastic in Stockbury
Can you do new build mastic in Stockbury?
Yes, Stockbury is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Newington station?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Can you reseal over the builder’s sealant?
No. New silicone won’t bond to old silicone, so it soon lifts and traps water. We cut the old bead out completely.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Is it worth resealing while the house is still settling?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
How do I get a quote for new build mastic in Stockbury?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
New build mastic in Stockbury
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first and if that stalls, we can do it. We work on bathrooms & en suites, kitchens and show homes, and people most often call us about sealant that never bonded to the surface and smeared, uneven beads picked up at snagging.
Somewhere as small as Stockbury, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Every job is covered by our one-year guarantee.

- Where
- Stockbury (ME9)
- Region
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for new build mastic in Stockbury
Every job gets its own quote. This is what makes a difference:
- Mould in or behind the old joints
- Access and height
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
When you contact us, it’s useful to know:
- Where the property is
- The type of property
- The problem you’ve noticed
- Any previous sealing or DIY work
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job.
Why act early in Stockbury
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. Around Stockbury, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why book with us
- More than 20 years in sealant work
- Any old sealant cut out fully, not covered over
- White, clear, grey or coloured to suit, where the product allows
- We leave the area clean and tidy
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
New homes and floors in Stockbury
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Stockbury, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Stockbury is about 4 miles west of Sittingbourne, in Kent. Jobs in Stockbury get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Stockbury is one of 922 towns and villages in Kent we cover. We also work in Chelmsford, about 29 miles from Stockbury.
Work in ME9 is quoted and booked the same way as anywhere else. That includes homes and businesses on The Street, Hill Green Road and Harrow Court. We also cover Yelsted (1 mile west), South Green (1 mile south-east), Hartlip (1 mile north), Lower Hartlip (1 mile north) and Danaway (2 miles north-east). Further out, we also cover Maidstone (6 miles south-west), Sittingbourne (4 miles east), Gravesend (13 miles north-west), Faversham (11 miles east), Northfleet (15 miles north-west) and Minster (9 miles north-east).
Around Stockbury
Locally, jobs take us to homes and businesses close to The Three Squirrels pub and Stockbury Hill Wood, among other places. The nearest railway station is Newington station, roughly 2.2 miles north-east of the centre. Well-known places in the area include Bayford Court (4.6 miles east) and KIMS hospital (4.5 miles south-west). For a walk, there’s Detling Hill.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Towns and villages near Stockbury
Also in Stockbury
What happens on the day
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work starts. The work normally takes anything from a few hours to several days, depending on the number of plots. In a small place like Stockbury, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- Failed or untidy sealant is cut out completely.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
How to prepare
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
Ask for a quote
We quote each job on its own. Just phone 0345 464 0079 or drop us an email with the details and send photos if you have them.
Related advice
What the job involves on each surface
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
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out and baths are filled before sealing.
Do you need new build mastic in Stockbury?
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak, and the problem shows up after you move in.
Keep an eye out for any of the following:
- Untidy sealant flagged on a snagging list
- Frame joints opening as the plaster dries
- Leaking shower tray seals in a new home
- Sealant applied over dusty or wet surfaces
If you’ve bought a new home near Newington station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
- How the colour is chosen
- Is the old sealant removed completely?
