Greater London · England

Remedial sealant & repairs in Old Chiswick, Greater London

Specialist remedial sealant for Old Chiswick: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Floor or wall movement joints that have failed
  • Gaps opening along the back of the worktop
  • Over-sealed joints coming away

Trusted remedial sealant in Old Chiswick

About our remedial sealant in Old Chiswick

A joint that keeps letting you down needs more than another bead. Send photos when you phone 0345 464 0079 or email us. We are often asked to deal with worktop sealant that has shrunk and split and sealant that came away because the surface wasn’t prepared, on botched or over-sealed joints, mouldy bath & shower sealant and failed movement joints.

London homes include a lot of flats, conversions and mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in Old Chiswick more than a cosmetic job.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Mr Mastic applicator smiling as he applies silicone to the corner of a bath
Where
Old Chiswick (W4, SW13, W6)
Region
Greater London
Cover
12 months on all our work
Quotes
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026

Old Chiswick questions

Do you take on hotel work around Old Chiswick?

Yes, hotels and guest houses are among the places we work. A room-by-room programme keeps most rooms in use while the work goes on.

Is parking a problem for a job in Old Chiswick?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.

Do you work in Old Chiswick?

Yes. We cover Old Chiswick and the rest of Greater London. To book, call 0345 464 0079 or send us an email.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures.

Are you fully insured?

Yes. We’re fully insured.

Can I choose the sealant colour?

Most of the time, yes. We will tell you which colours the right product comes in.

Can old silicone be taken off without scratching the tiles?

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

Do you need remedial sealant in Old Chiswick?

One of the commonest remedial jobs is sealant on top of sealant. New silicone cannot stick to the old bead, so the top layer lifts and water and mould collect between the two.

Any of these means the joints need attention:

  • Worktop sealant that has shrunk and split
  • A second bead peeling off the first
  • Leaks that keep coming back after resealing
  • Sealant peeling off a dusty or damp surface

Letting a property close to Chiswick station? Then botched sealant from a previous quick fix is easier to strip out between tenants.

What to look for in a quote

  • How the colour is chosen
  • Is the old sealant removed completely?
  • Which sealant they’ll use, and why
  • How much experience the applicator has

10 questions to ask before you book

DIY versus a professional finish

Some sealant jobs are within reach of a careful DIYer, 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.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

When something else is needed

Before booking, it’s worth knowing the limits:

  • Cracks in the fitting rather than the joint
  • Plumbing leaks behind walls or under trays
  • Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed

If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.

Joints and surfaces we work on

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

How to look after the new joints

Looking after new joints is easy:

  • Check trays and worktops do not move
  • Act on a lifting corner straight away
  • Get the cause of a repeat leak found before resealing
  • Look for stains below bathrooms now and then

Give the new sealant its full cure time: usually around 24 hours, or as long as we advise.

Signs to act on: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Each one is worth getting looked at.

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 generally takes a few hours for a typical bath or shower, longer where several layers have been applied. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.

  1. We start by checking the joint for movement, leaks and the reason it failed.
  2. Every layer of old sealant is cut and cleaned out.
  3. We clean the joint, treat any mould and let it dry.
  4. Moving joints get backing and a flexible sealant to suit.
  5. We tool the joint and tell you about anything else that needs attention.

Before we arrive

  • Mention any tricky access
  • Try not to wet indoor joints just before the visit
  • Tell us about any water getting in

Getting a quote

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

Get a price

Advice

Quotes for remedial sealant in Old Chiswick

Every job gets its own quote. These are the things that affect it:

  • Access and height
  • Mould in or behind the old joints
  • Which sealant suits the joint
  • How many rooms, windows or areas are involved

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.

Helping us quote

What to tell us when you ask for a quote:

  • Whether it has been sealed before
  • Whether it’s a home or a business
  • The address or postcode of the job
  • A few pictures by email, if you can

Getting a quote is simple: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.

Remedial sealant in Old Chiswick: local notes

Old Chiswick has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room. London has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

Old Chiswick is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you live in an older home near St. Nicholas Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.

Old Chiswick is about 2 miles south of Acton, in Greater London. Whether you are in the middle of Old Chiswick or further out, remedial sealant is available for homes and businesses alike. 764 places in Greater London are on our list, from the larger towns to small villages. London is on our list too, around 7 miles away.

Our applicators cover all of W4, SW13 and W6 for remedial sealant. Whether your property is on Short Road, Quick Road and Paxton Road or a nearby road, our applicators can take on the job. If you are just outside Old Chiswick, we cover Turnham Green (1 mile west), Chiswick (1 mile north-west), Grove Park (1 mile west), Barnes (1 mile south) and Hammersmith (1 mile north-east). We also work in nearby towns such as London (7 miles east), City of Westminster (5 miles north-east), Marylebone (5 miles north-east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).

What’s near Old Chiswick

Around Old Chiswick, our work takes us to homes and buildings near George and Devonshire pub, The Swedish School and Polish Library POSK in London and the streets around them. You will also find Turnham Green (0.8 miles north-west) and Chiswick School (0.5 miles south-west). For rail, the closest station is Chiswick station, roughly 0.8 miles south-west of the centre. Well-known places in the area include Kurdish Museum Library and Archive (0.7 miles north-east) and West London Hospital (1.3 miles east). Open spaces near Old Chiswick include Campden Hill and Kew Gardens Lake.

Map of Old Chiswick © OpenStreetMap contributors

How the job changes by surface

Leaking trays & enclosures

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

Mouldy bath & shower sealant

Black mould inside the bead won’t scrub out. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.

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