Kent · England

Remedial sealant & repairs in New Ash Green, Kent

Failed sealant joints in New Ash Green need attention? We cut out the old, prepare the joints and apply the right sealant.

  • Kitchen joints letting water behind the worktop
  • Repeat leaks from the same joint
  • Sealant applied over old sealant that has lifted

Need remedial sealant in New Ash Green?

When it is not the sealant

A few problems are outside what sealant work can do:

  • Leaks from a shower valve, waste or pipework (a plumber’s job)
  • Water damage behind tiles that needs a tiler
  • Cracks in the fitting rather than the joint

Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.

Joints and surfaces we work on

  • Shrunken worktop sealant
  • Botched or over-sealed joints
  • Mouldy bath & shower sealant
  • Leaking tray & enclosure joints
  • Expansion joints
  • Failed movement joints

Remedial sealant for homes and businesses in New Ash Green

Remedial work is what we do when sealant has failed or been done badly. New sealant over old, smeared beads, unsuitable products and hidden mould all have to come out before the joint can be done properly. If you’re dealing with mould trapped under a layer of silicone and decorators’ caulk around a bath or shower, we can help.

In a village or hamlet like New Ash Green, homes are often older cottages and farmhouses alongside a few newer houses. Movement in older walls and floors tends to show first as cracked grout or split sealant.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Location
New Ash Green (DA3, TN15)
Wider area
Kent
Guarantee
12 months on all our work
Quotes
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026
Sealant gun being used along the bath-to-tile joint in a beige tiled bathroom

Leave it or put it right?

A failed seal rarely means a new bathroom. When the fittings are sound, stripping and resealing the joints is often enough. If they’re not, we will tell you. Older cottages and farmhouses around New Ash Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us.

Why New Ash Green customers choose us

  • Sanitary silicone with an anti-fungal additive in wet areas
  • Homes, businesses and hotels
  • Rated 4.9 stars on Google
  • You choose the colour before work begins

See our cost guide and what customers say.

Remedial sealant around New Ash Green

Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.

For an older house near a landmark such as Parish Church of Saint Peter and Saint Paul, walls and floors in older homes can move, and sealant and grout show it first. If you look after a building such as New Ash Green Primary School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. For landlords with property near Longfield station, a joint that keeps failing is best fixed properly while the property is empty.

New Ash Green is about 5 miles south of Northfleet, in Kent. Whether you’re in the middle of New Ash Green or further out, we cover remedial sealant for every kind of property. 922 places in Kent are on our list, large and small. We also work in London, around 20 miles away.

Work in DA3 and TN15 is quoted and booked the same way as anywhere else. That includes homes and businesses on Church Road, Upper Street North and Upper Street South. Other places close to New Ash Green include Ridley (1 mile south-east), Hartley (1 mile north), New Street (2 miles south-east), Hodsoll Street (2 miles south-east) and Longfield Hill (2 miles north-east). Further out, we also cover Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (8 miles south-west), Gravesend (5 miles north-east), Tonbridge (12 miles south) and Northfleet (5 miles north).

Local landmarks in New Ash Green

Locally, jobs take us to homes and businesses close to The White Swan Public House, Longfield Academy and Rectory Meadow, among other places. The nearest railway station is Longfield station, about 2.1 miles north of the centre. A little further out are Eynsford Castle (4 miles west) and Darent Valley Hospital (5.2 miles north-west).

Map of New Ash Green © OpenStreetMap contributors

What happens on the day

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours, depending on how many layers have to come out. For a village or hamlet like New Ash Green, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We look at how the sealant has failed and check for movement or a leak path.
  2. All the old sealant comes out, including any layers underneath.
  3. We clean the joint, treat any mould and let it dry.
  4. Where the joint moves, backing and a flexible sealant suited to the movement go in.
  5. The new joint is tooled neatly and we explain anything else we found.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • Mention any sign-in or site rules at work premises
  • Clear items away from the joints we are working on

Get a quote

Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand, and we’ll take it from there.

Get a quick quote

Related advice

Surface by surface

Leaking trays & enclosures

A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.

Windows & doors

Smeared or badly matched mastic can be cut out and redone neatly, in a colour that suits the frame.

What affects the cost of remedial sealant

Jobs vary more than people expect. What affects the quote:

  • Working hours on commercial sites
  • How many rooms, windows or areas are involved
  • Any mould that needs treating
  • How easy the joints are to reach

A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.

Asking for a quote

Photos help, but a description is a good start. Try to tell us:

  • Pictures of the joints, sent by email
  • The problem you’ve noticed
  • The address or postcode of the job
  • The type of property

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.

Aftercare tips

A little care helps the new joints last. Our advice:

  • Keep movement joints clear of mortar and paint
  • Check trays and worktops do not move
  • Don’t add new sealant on top of old
  • Air the bathroom so the sealant can dry

Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.

Movement joints that have split let water into the structure, and the longer it’s left, the more the joint edges break down. Resealing while the edges are sound is simpler.

Questions from New Ash Green

Do you cover New Ash Green for remedial sealant?

Yes. We work across London and the South East, and New Ash Green is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.

Can you help a landlord with a rental near Longfield station?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.

Do you offer different sealant colours?

In most cases you can choose. We’ll tell you which colours the right product comes in.

Can you take off two layers of silicone?

Yes. We cut out all the layers and clean off the film, then the joint is resealed once.

Will it make a mess?

Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What if the leak isn’t the sealant?

Then we explain what we’ve found. You may need a plumber or bathroom fitter before any new sealant goes on.

How do I get a quote for remedial sealant in New Ash Green?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Work for landlords, hotels and businesses

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

For anyone letting property in or around New Ash Green, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job