Kent · England
Herne New Build Mastic
New build mastic for Herne and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Frame joints opening as the plaster dries
- Plot mastic for developers ahead of handover
- Sealant that never bonded to the surface
New build mastic in Herne, done properly
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. If you have kitchen sealant that has pulled off the wall and messy sealant that spoils new finishes, we can put it right, whatever the surface.
If you’ve bought a new home in or near Herne, the first year or two is a good time to check the sealant. Common snags include open skirting joints, lifting shower seals and gaps around frames.
There’s a 12-month guarantee on every job.
- Place
- Herne (CT6)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one in a matching colour.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk painted or coloured to suit.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Watch for new gaps as the house dries out
- Clean sealant with mild detergent, not abrasives
- Do not seal over failed sealant yourself
- Keep pictures and emails about snagging items
Keep photos of the joints and any snagging correspondence with your builder. It helps if anything else comes up during the warranty period.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.
When something else is needed
We will always be straight with you, so here’s what sealant can’t fix:
- Cracking that points to a structural problem
- Damaged fittings that need replacing
- Leaking fittings rather than failed sealant
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Windows & doors
- Plot handovers
- Skirting & floors
- Bathrooms & en suites
- Show homes
- Kitchens
Also in Herne
Why it’s worth doing now in Herne
The builder is normally the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. In an older home around Herne, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
What you get with us
- Old sealant always removed completely
- You choose the colour before work begins
- More than 20 years in sealant work
- ARBOMaster approved applicator
See our cost guide or what customers say.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours in a single home. In a smaller place like Herne, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
How to 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 talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or send us an email.
Advice
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Herne, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
New build mastic around Herne
Herne is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. 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 Herne, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Herne Bay station, the sealant around baths, showers and frames is worth checking in the first year or two.
Herne is about 1 mile south of Herne Bay, in Kent. Our applicators cover new build mastic for homes and businesses in Herne and the surrounding area, as part of our work across Kent. Our area takes in 922 places across Kent, from the larger towns to small villages. We also work in Chelmsford, around 39 miles away.
Here we cover the CT6 postcode area for new build mastic. New build mastic is available to properties on St Martin's View, Ridley Close and Herne Street. Close by, we work in Hunters Forstal (1 mile north-east), Eddington (1 mile north-west), Herne Common (1 mile south-west), Bullockstone (1 mile west) and Broomfield (1 mile north-east). Larger places within reach include Canterbury (5 miles south-west), Margate (11 miles east), Ramsgate (12 miles east), Broadstairs (13 miles east), Whitstable (4 miles west) and Deal (15 miles south-east).
What’s near Herne
Typical jobs here are in homes near Curtis Wood and Herne Bay High School, among other places. Herne’s nearest station is Herne Bay station, about 1.2 miles north-west. Well-known places in the area include Whitstable and Tankerton Hospital (3.7 miles west) and Tankerton Castle (4.4 miles west). The countryside around Herne includes West Blean and Thornden Woods.
Common questions in Herne
Do you cover Herne for new build mastic?
Yes, Herne is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
I let a flat near Herne Bay station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
Can you reseal over the builder’s sealant?
No. The old sealant is cut out fully, the joint cleaned and primed where needed, before resealing.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with photos if you can, and we will quote. We’ll flag anything that needs another trade.
When is the best time to reseal in a new build?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
Is there a guarantee?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.