Greater London · England

Remedial Sealant in Kew

Remedial sealant across Kew and nearby, with old sealant always removed completely.

  • Black mould underneath the bead
  • Sealant peeling off a dusty or damp surface
  • Torn expansion joints

Need remedial sealant in Kew?

Quotes for remedial sealant in Kew

For a quick quote, just ask. The main things that affect it are:

  • When we can work, for business premises
  • Mould in or behind the old joints
  • The type of sealant required
  • Whether old sealant or filler has to be cut out

Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.

Asking for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • The problem you’ve noticed
  • Photos by email, if that’s easy
  • The address or postcode of the job
  • Whether it has been sealed before

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 pictures if that’s easy.

How we handle remedial sealant in Kew

Remedial work is what we do when sealant has failed or been done badly. Silicone laid over silicone, smears across tiles, the wrong product in a moving joint or mould trapped underneath all need stripping out. If you have gaps opening along the back of the worktop and black mould underneath the bead, we can put it right.

Across London, a large share of homes are flats, conversions or mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. In Kew, that’s a good reason to put tired sealant and grout right early.

Your job is guaranteed for a year, as with all our work.

Place
Kew (W4, TW9, TW8)
Wider area
Greater London
Cover
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator smiling as he applies silicone to the corner of a bath

Questions from Kew

Do you work in hotels near Kew?

Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.

I live in a flat in Kew. Can a failed seal leak into the flat below?

It can, yes: water that gets past a split bead or cracked grout often runs under the tray and shows on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.

Can you remove old sealant without damaging the bath?

Yes. Residue is removed with a product suited to the surface rather than scraped hard, so the new sealant bonds cleanly.

Where do you work from?

We are based in Crawley, and we work across South East England, London and Scotland.

Is it worth trying it myself?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

Do you offer different sealant colours?

Most of the time, yes. We’ll explain which colours are available.

What if the leak is not the sealant?

We check for that before we reseal. If we find the leak is elsewhere, we tell you before going further.

Are you fully insured?

Yes. We are fully insured.

Landlord and commercial work in Kew

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

Why act early in Kew

Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Kew, the repair is bigger than a sealant job.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

Why Kew customers choose us

  • A sealant colour to suit the surroundings
  • Anti-fungal silicone where joints get wet
  • Approved under the ARBOMaster scheme
  • 12-month guarantee on every job

See our cost guide and customer reviews.

Keeping the joints in good condition

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

  • Keep movement joints clear of mortar and paint
  • Act on a lifting corner straight away
  • Find out why the sealant failed first
  • Check ceilings under showers for marks

Where we’ve pointed out another fault, have it put right, or the new joint may fail again.

Don’t keep resealing the same joint. Get the cause found first, or the next bead will go the same way.

Common problems we fix in Kew

Even good sealant ages. Over the years it shrinks, hardens and gets colonised by mould, especially in damp, poorly aired rooms. Then the only fix is removal and a new bead.

The problems people usually mention when they call are:

  • Torn expansion joints
  • Over-sealed joints coming away
  • Beads that never stuck properly
  • Black mould underneath the bead

Managing a site like Grove Park Primary School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s.

Questions to ask before you book

  • How the joint is cleaned and prepared
  • How the colour is chosen
  • The length of the guarantee
  • What insurance they hold

Our hiring checklist

Bathrooms and kitchens in Kew

There are hotels and other places to stay in and around Kew. Hotel bathrooms are part of our work as well as homes, and can be done room by room. London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early.

Kew is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. For landlords with property near Chiswick station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.

Kew is about 2 miles south of Acton, in Greater London. Whether you are in the middle of Kew or further out, we cover remedial sealant for every kind of property, from flats and houses to offices and hotels. Our area takes in 764 places across Greater London, large and small. You can also see our page for London, about 8 miles away.

Work in W4, TW9 and TW8 works the same way as everywhere else we cover. Whether your property is on Kew Road, Maze Road and Kent Road or anywhere close by, we can help. With the A3000 close by, Kew is simple for us to get to for remedial sealant. If you’re just outside Kew, we cover Strand-on-the-Green (1 mile north), Grove Park (1 mile east), North Sheen (1 mile south), Gunnersbury (1 mile north) and Turnham Green (1 mile east). Larger places within reach include London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles north-east), Kensington (3 miles east), St Pancras (7 miles north-east) and Shoreditch (9 miles east).

Near you in Kew

Around Kew, our work takes us to homes and buildings near Library for Iranian Studies, Kew Green and Chiswick School and the streets around them. You will also find Kew College Prep (within half a mile south-west) and Bull's Head pub (within half a mile north). The closest station to Kew is Chiswick station, roughly 0.5 miles south-east of the centre. Other landmarks nearby include Livat Hammersmith (2.2 miles east) and Barnes Hospital (1.5 miles south-east). Open spaces near Kew include Kew Gardens Lake and Duke's Hollow.

Map of Kew © OpenStreetMap contributors

When something else is needed

Sealant is not the answer to every problem, and we will tell you before any work starts. It will not solve:

  • Tiles that have come away from the wall
  • A leaking trap, valve or supply pipe
  • A tray or worktop that needs refixing first

If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.

What we seal

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

How it works

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours, depending on how many layers have to come out. For a job in Kew, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
  2. Each layer is cut out and the residue cleaned off.
  3. Mould is treated and the joint dried.
  4. The right product goes in, with backing where the joint moves.
  5. We finish neatly and point out anything that needs another trade.

How to prepare

  • Clear the area around the work
  • Let us know about earlier repairs to the joints
  • Let us know if you’ve seen damp or leaks

How to get a quote

To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.

Get a quick quote

Related advice

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