Kent · England
Remedial sealant & repairs in New Barn, Kent
Remedial sealant in New Barn from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- A shower that leaks however often it’s resealed
- Decorators’ caulk around a bath or shower
- Gaps opening along the back of the worktop
About our remedial sealant in New Barn
In New Barn, as anywhere, remedial jobs tend to look alike: over-sealed joints, hidden mould, repeat leaks and split movement joints. We strip each one back and start from scratch. We are often asked to deal with black mould underneath the bead and sealant that came away because the surface wasn’t prepared, on shrunken worktop sealant, botched or over-sealed joints and mouldy bath & shower sealant.
Even in a smaller place like New Barn, bathrooms and kitchens see heavy daily use. Whether it’s a cottage bathroom or a newer en suite, the approach is the same: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
You get a 12-month guarantee, the same in New Barn as everywhere else we work.
- Location
- New Barn (DA3, DA13)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Bathrooms and kitchens in New Barn
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Longfield station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Managing a site like Longfield Academy? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
New Barn is about 3 miles south of Northfleet, in Kent. Whether you are in the middle of New Barn or further out, we cover remedial sealant for every kind of property. New Barn is one of 922 places in Kent where we work for remedial sealant. We also work in London, about 20 miles from New Barn.
All of DA3 and DA13 is covered for remedial sealant. Whether your property is on The Maples, Kenwood Avenue and Merileys Close or anywhere close by, we can help. Neighbouring places we cover for remedial sealant include Longfield Hill (1 mile south-east), Longfield (1 mile west), Hartley (1 mile south-west), Nash Street (1 mile east) and Meopham (2 miles south-east). Within a short drive, we also cover Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (10 miles south-west), Gravesend (3 miles north-east), Tonbridge (14 miles south) and Northfleet (3 miles north).
Near you in New Barn
Around New Barn, our work takes us to homes and buildings near Istead Rise Primary School and Rectory Meadow and the streets around them. New Barn’s nearest station is Longfield station, roughly 1.2 miles west of the centre. Other landmarks nearby include Gravesham Museum (3.6 miles north-east) and Stone Castle (3.9 miles north-west). Green spaces nearby include Sawyers Lake.
What affects the quote in New Barn
The price is agreed before any work begins. It takes into account:
- Whether there’s mould to deal with
- The old material and how stubborn it is
- The number of rooms or windows
- How easy the joints are to reach
Doing several joints on 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
There’s no need for technical detail. It helps if you can tell us:
- What’s wrong with the joints now
- If someone has resealed it before
- How we’d reach the joints
- Where the job is, and your postcode
If you’re in New Barn and need remedial sealant, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Older mastics that may need an asbestos check before removal
- Movement from fittings that aren’t supported
- A leaking trap, valve or supply pipe
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Expansion joints
- Failed movement joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
When to call us in New Barn
Some joints fail because water is reaching them from behind. A slow leak behind the tiles soaks the joint from the back, so the silicone goes mouldy or lets go.
The problems people usually mention when they call are:
- Leaks that keep coming back after resealing
- Sealant applied over old sealant that has lifted
- Dark patches showing through the sealant
- Smears and lumps from a botched reseal
Homes close to Church of Saint Mary Magdalene include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Questions to ask before booking
- How hidden problems are handled
- How much experience the applicator has
- Are they insured?
- Is the old sealant removed completely?
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
How it works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and clear up. It normally takes a few hours for a typical bath or shower, longer where several layers have been applied. In a smaller place like New Barn, 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.
- We look at how the sealant has failed and check for movement or a leak path.
- We strip the joint completely, removing any layers below.
- We clean the joint, treat any mould and let it dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- We tool the joint and tell you about anything else that needs attention.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.
Advice
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Keep an eye on the ceiling below the bathroom
- Get the cause of a repeat leak found before resealing
- Don’t add new sealant on top of old
- Keep movement joints clear of mortar and paint
Ventilation keeps mould away from the new bead: run the fan during and after showers, or open a window.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
Nearby places to New Barn
What else we do in New Barn
Your questions about remedial sealant in New Barn
Do you cover New Barn for remedial sealant?
Yes, New Barn 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’ll give you a clear price.
Will you come out to New Barn?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How do I get a quote for remedial sealant in New Barn?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover New Barn.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
What if resealing won’t fix my leak?
You’ll hear it from us. If it’s a cracked tray, a failed valve or a leaking waste, resealing won’t fix it, so we won’t pretend it will.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do you guarantee remedial jobs?
Yes. Every job comes with our one-year guarantee.
What happens if it’s left?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and any film left behind stops new sealant sticking. Careful removal is most of a remedial job. In an older home around New Barn, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why New Barn customers choose us
- Quality sealants from Arbo and Everbuild
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
- 20+ years of sealant experience