Greater London · England

Remedial Sealant in Walham Green

Our applicators work in Walham Green on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Caulk or the wrong sealant used in a wet area
  • Dark patches showing through the sealant
  • Floor or wall movement joints that have failed

Remedial sealant in Walham Green

About our remedial sealant in Walham Green

In Walham Green, 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. Typical jobs include leaks that keep coming back after resealing and beads that never stuck properly, across leaking tray & enclosure joints, botched or over-sealed joints and failed movement joints.

Hard London water leaves limescale on sealant, grout and taps alike. In Walham Green, remedial sealant is as much about a room looking cared for as about keeping water out.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Place
Walham Green (SW6, SW10, SW11)
Region
Greater London
Cover
One year on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator smiling as he applies silicone to the corner of a bath

Quotes for remedial sealant in Walham Green

You will get a clear quote before work begins. It takes into account:

  • Any mould that needs treating
  • Whether old sealant or filler has to be cut out
  • The product the joint needs
  • The size of the job

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.

Helping us quote

To make quoting easier, let us know:

  • Pictures of the joints, sent by email
  • If someone has resealed it before
  • The problem you’ve noticed
  • Roughly how big the job is

For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.

Your questions about remedial sealant in Walham Green

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

Yes, it can. Water that gets past failed sealant or cracked grout can run under the bath or tray and show up on the ceiling below. Replacing the sealant and grout before that happens is much less trouble than repairing a neighbour’s ceiling.

Do you work for landlords with property near Imperial Wharf station?

Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.

Can I add another job to the visit?

Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

Can you match the sealant colour?

We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.

Can you remove old sealant without damaging the bath?

Yes. We avoid heavy scraping and use the right cleaner for each surface, so the new sealant bonds cleanly.

Someone sealed over the old bead. Can you fix it?

Yes. It’s slower than a standard reseal, because every layer has to come out cleanly, but it’s the only way the new joint will last.

Do I need to be at home?

For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.

How long will it take to strip and reseal the joint?

It takes a few hours for a typical bath or shower, longer where several layers have been applied. You’ll know the timing when we quote.

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Clean sealant with mild products only
  • Run the fan after every shower
  • Do not add new sealant on top of old
  • Get the cause of a repeat leak found before resealing

Ventilation keeps mould away from the new bead: run the fan during and after showers, or open a window.

Mould under a second layer of sealant keeps growing out of sight. By the time it shows through, the joint is well past saving.

When to call us in Walham Green

Silicone only bonds to surfaces that are clean and dry. Soap film, dust, damp or old residue stop it gripping, and the joint starts to come away early.

If you can see any of these, it’s time to have the joints looked at:

  • Sealant that came away because the surface wasn’t prepared
  • Leaks that keep coming back after resealing
  • A second bead peeling off the first
  • Black mould underneath the bead

Walham Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway.

What your quote should include

  • Which colour the sealant will be
  • The length of the guarantee
  • What insurance they hold
  • What happens if the job turns out different

10 questions to ask before booking

Should I try it myself first?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.

What the job involves on each surface

Mouldy bath & shower sealant

Repeat mould generally points to a damp, poorly aired room. We will reseal and tell you if extraction looks to be the issue.

Movement & expansion joints

A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal.

What we do, step by step

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take a few hours, depending on how many layers have to come out. In a London area like Walham Green, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.

  1. We look at how the sealant has failed and check for movement or a leak path.
  2. Every layer of old sealant is cut and cleaned out.
  3. The joint is cleaned, treated for mould and left to dry.
  4. We use the right backing and sealant for any joint that moves.
  5. The new joint is tooled neatly and we explain anything else we found.

How to prepare

  • Plan for the work area to be out of bounds to pets and children
  • Let us know about stairs, lifts or work at height
  • Tell us if parking is tricky

Get a quote

For remedial sealant in Walham Green, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Get a price

Related advice

Leave it or put it right?

A failed seal rarely means a new bathroom. If the bath, tray and tiles are sound, remedial resealing normally puts it right. If they’re not, we’ll tell you. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in Walham Green.

What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.

Why Walham Green clients choose us

  • White, clear, grey or another colour, product permitting
  • Anti-fungal sanitary silicone in wet areas
  • 4.9 on Google from 180+ five-star reviews
  • Trusted Arbo and Everbuild sealants

Take a look at how sealant jobs are priced or our reviews.

What remedial sealant looks like in Walham Green

London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. Walham Green has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room.

Letting a property close to Imperial Wharf station? Then a joint that keeps failing is best fixed properly while the property is empty. Managing a site like Chelsea Independent College? Then we reseal washrooms and kitchens in schools and businesses as well as homes.

Walham Green is about 2 miles south of Kensington, in Greater London. Jobs in Walham Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 764 towns and villages across Greater London.

Every address in SW6, SW10 and SW11 is within our area for remedial sealant, from the main roads to the quietest streets. Remedial sealant is available to properties on Farm Lane, Lots Road and Epple Road. With the A304 close by, Walham Green is easy for our applicators to reach for remedial sealant. If you’re just outside Walham Green, we cover Chelsea Harbour (1 mile south-east), Parsons Green (1 mile south-west), World's End (1 mile north-east), Sands End (1 mile south-east) and West Brompton (1 mile north). Within a short drive, we also cover London (4 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).

Around Walham Green

We work in homes and buildings around Natural History Museum Library and Archives, Heatherley School of Fine Art and Langford Primary School and the streets around them. You will also find William Parnell Park (within half a mile south) and The Rose pub (under half a mile south-east). Walham Green has its own railway station: Imperial Wharf station. Well-known places in the area include Chelsea Stadium Tour And Museum (under half a mile north) and Chelsea and Westminster Hospital (0.5 miles north-east). Open spaces near Walham Green include Battersea Park Lake and WWT London Wetland Centre.

Map of Walham Green © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job