Kent · England

Remedial sealant & repairs in Gravesend, Kent

Remedial sealant for Gravesend, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Caulk or the wrong sealant used in a wet area
  • A second bead peeling off the first
  • Worktop sealant that has shrunk and split

Book remedial sealant in Gravesend

How it works

On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for most joints, depending on how much old sealant has to come out. Parking in a town like Gravesend is normally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.

  1. Surrounding tiles, trays and frames are protected first.
  2. The botched or failed sealant is cut away completely.
  3. The joint is degreased and checked for movement and leaks.
  4. Once dry, a suitable sealant is applied and tooled.
  5. You get the cure time and our view on why the joint failed.

Getting ready for the visit

  • For business premises, tell us about site rules or sign-in
  • For indoor joints, keep the area dry beforehand if you can
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.

Get a price

Read more

How we handle remedial sealant in Gravesend

A joint that keeps letting you down needs more than another bead. It helps to have pictures when you ring 0345 464 0079 or drop us an email. If you are dealing with mould trapped under a layer of silicone and repeat leaks from the same joint, we can help, on botched or over-sealed joints, failed movement joints and expansion joints alike.

Gravesend mixes older houses with estates built more recently, and bathrooms range from decades-old suites to brand-new ones. Whatever their age, sealant and grout tend to go before anything else.

Every job is covered by a one-year guarantee.

Fresh white silicone going into the corner where a shower screen meets the tiled wall
Location
Gravesend (DA12, DA11)
Wider area
Kent
Cover
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

DIY sealant or a professional job?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

What we are called out for in Gravesend

Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes split any bead that’s too stiff or too thin.

Keep an eye out for any of the following:

  • Gaps opening along the back of the worktop
  • Over-sealed joints coming away
  • Torn expansion joints
  • Black mould underneath the bead

For landlords with property near Gravesend station, botched sealant from a previous quick fix is easier to strip out between tenants.

What your quote should include

  • How the surfaces are prepared before sealing
  • How hidden problems are handled
  • Which sealant they’ll use, and why
  • When the joint can take water or movement

Our hiring checklist

When it is not the sealant

We’ll always be straight with you, so here’s what new sealant will not do:

  • Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
  • Cracks in the fitting rather than the joint
  • Movement from fittings that aren’t supported

Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.

Joints and surfaces we work on

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

For landlords and businesses

If you manage several properties in or around Gravesend, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Remedial sealant around Gravesend

Gravesend is close to the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, which wears sealant and grout out faster than in a quiet home. There are hotels and other places to stay in and around Gravesend. Hotel bathrooms are part of our work as well as homes, and can be done room by room.

If you look after a building such as Whitehill 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. If you live in an older home near Christ Church Milton, walls and floors in older homes can move, and sealant and grout show it first.

Gravesend is about 9 miles north-west of Gillingham, in Kent. Across the DA12 area, we cover remedial sealant for homes and businesses. Gravesend is one of 922 towns and villages in Kent where we work for remedial sealant. For nearby work, see our London page, about 21 miles away.

We work across the DA12 and DA11 postcode area for remedial sealant. You will find streets such as Christ Church Road, Hillside Drive and Laurel Avenue. Gravesend is on the A2 and A226, so it’s easy for us to get to. We also cover Windmill Hill (1 mile north-west), Milton-next-Gravesend (1 mile north-east), Denton (1 mile east), Singlewell or Ifield (1 mile south) and Northfleet (1 mile west). We also work in nearby towns such as Maidstone (13 miles south-east), Dartford (7 miles west), Sevenoaks (13 miles south-west), Swanley (9 miles west), Kings Hill (11 miles south) and Foley Park (12 miles south-east).

Local landmarks in Gravesend

In Gravesend, that means homes and buildings near Northfleet Urban Country Park, St John's Catholic Comprehensive and St John's Catholic Comprehensive and the streets around them. The closest station to Gravesend is Gravesend station, roughly 0.9 miles north-west. Other landmarks nearby include Gravesham Museum (0.9 miles north-west) and Stone Castle (4.5 miles west). Not far away are Sawyers Lake and Gad's Hill.

Map of Gravesend © OpenStreetMap contributors

What affects the cost of remedial sealant

The price is agreed before any work begins. It’s based on:

  • How much old sealant there is and how hard it is to remove
  • Access and height
  • Any working-time requirements on site
  • Whether there’s mould to deal with

A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.

Asking for a quote

To help us quote quickly, please include:

  • The problem you’ve noticed
  • The address or postcode of the job
  • How many joints, rooms or windows are involved
  • Pictures of the joints, sent by email

Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.

Why deal with it now?

Remedial work takes longer than a straight reseal, but rarely a lot: the work takes a few hours, depending on how many layers have to come out. Compared with chasing the same leak every few months, it’s time well spent. Black mould and gaps in sealant do not fix themselves, and in a busy household in Gravesend they spread with every shower and every downpour. Now is the easy time to put it right.

We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email and we will talk you through it.

What you get with us

  • Any old sealant cut out fully, not covered over
  • 4.9 on Google from 180+ five-star reviews
  • White, clear, grey or coloured to suit, where the product allows
  • We agree the colour with you first

See our cost guide or customer reviews.

Gravesend questions

Do you work for landlords with property near Gravesend station?

Yes. We work for landlords and agents as well as homeowners. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.

Do you take on hotel work around Gravesend?

Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.

Can I add another job to the visit?

Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

How long does remedial resealing take?

It takes a few hours, depending on how many layers have to come out. You will know the timing when we quote.

What sealant do you use?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.

Where is Mr Mastic based?

We’re based in Crawley, and we cover South East England, London and all of Scotland.

How do I get a quote for remedial sealant in Gravesend?

It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.

Are you an approved applicator?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

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