Greater London · England

Coombe Hill Remedial Sealant

Remedial sealant for Coombe Hill and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • A second bead peeling off the first
  • Thick, messy sealant smeared over tiles
  • Dark patches showing through the sealant

Trusted remedial sealant in Coombe Hill

What affects the cost of remedial sealant

There’s no set price list, because jobs vary so much. What we look at:

  • How much old sealant there is and how hard it is to remove
  • Access and height
  • The size of the job
  • When we can work, for business premises

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.

What to tell us for a quote

To make quoting easier, let us know:

  • The type of property
  • Where the job is, and your postcode
  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it has been sealed before

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

Remedial sealant in Coombe Hill

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 are dealing with black mould underneath the bead and gaps opening along the back of the worktop, 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 Coombe Hill, that is a good reason to put tired sealant and grout right early.

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

Mr Mastic applicator smiling as he applies silicone to the corner of a bath
Where
Coombe Hill (SW15, KT2)
Region
Greater London
Guarantee
A year, on every job
Quote
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026

Common questions in Coombe Hill

Is parking a problem for a job in Coombe Hill?

Parking in Coombe Hill, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.

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

Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.

Will the old sealant be removed?

Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.

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

Yes. We cut out all the layers and clean off the film, before resealing with a single bead.

Do you cover Coombe Hill?

Yes, we do. Coombe Hill is part of the area we cover, and the service is the same as everywhere else.

Are you insured?

Yes. We’re fully insured, and we can confirm the details when we quote.

Do you work for hotels and businesses?

Yes. Hotels, offices and other businesses use us and we’re fully insured.

Do you hold any approvals?

Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.

When something else is needed

It helps to know what we cannot do too:

  • Leaks from a shower valve, waste or pipework (a plumber’s job)
  • Failed tanking or loose tiles behind the sealant
  • Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed

If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.

What we seal

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

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

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

The process

Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Coombe Hill. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We protect the surfaces around the joint.
  2. The botched or failed sealant is cut away completely.
  3. The joint is degreased and checked for movement and leaks.
  4. New sealant goes in once the joint is dry, and is tooled smooth.
  5. We give you the cure time and explain what caused the failure.

How to prepare

  • Mention if the joints have been sealed before
  • Mention any tricky access
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or email us.

Ask for a quote

Related advice

Common problems we fix in Coombe Hill

Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, so the silicone goes mouldy or lets go.

It’s worth asking for a quote if you see:

  • Smears and lumps from a botched reseal
  • Black mould underneath the bead
  • Over-sealed joints coming away
  • Movement joints that have split or pulled away

Letting a property close to Norbiton station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.

Questions to ask before you book

  • How the surfaces are prepared before sealing
  • Is the old sealant removed completely?
  • How long the guarantee is
  • Who does the work, and how experienced they are

10 questions to ask before you book

DIY sealant or a professional job?

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.

If you’ve already had a go yourself, that’s fine. We cut it out and start again.

Leave it or put it right?

Repeat failures have a cause. Finding it, whether movement, water from elsewhere or an unsuitable product, ends the cycle. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Coombe Hill, the repair is bigger than the sealant job would have been.

Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

Why Coombe Hill clients choose us

  • A choice of colours where the product allows
  • Every job guaranteed for a year
  • An ARBOMaster approved applicator
  • Colour agreed with you before any work starts

Take a look at how sealant jobs are priced or what customers say.

Bathrooms and kitchens in Coombe Hill

London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in. In a London flat, water from a failed bath or shower seal can reach the neighbours below, which is why it’s worth fixing early.

Schools such as Robin Hood Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. Coombe Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.

Coombe Hill is about 2 miles north-east of Kingston upon Thames, in Greater London. Our applicators cover remedial sealant for homeowners, landlords and businesses in Coombe Hill. Across Greater London, we cover 764 places, and Coombe Hill is one of them. For nearby work, see our London page, about 9 miles away.

All of SW15 and KT2 is within our area for remedial sealant. Remedial sealant is available to properties on Keswick Avenue, Derwent Avenue and Robin Hood Lane and the roads around them. Coombe Hill is on the A308, which makes it straightforward to reach with everything needed for remedial sealant. Nearby, we also carry out remedial sealant in Kingston Vale (1 mile east), Putney Vale (1 mile east), Coombe (1 mile south), Norbiton (2 miles south-west) and Motspur Park (2 miles south-east). We also work in nearby towns such as London (9 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).

Local landmarks in Coombe Hill

Locally, jobs take us to homes and businesses close to Coombe Girls' School, Canbury School and Richmond Park and the streets around them. Coombe Hill’s nearest station is Norbiton station, about 1.6 miles south-west of the centre. Other landmarks nearby include Bentall Centre (2.2 miles south-west) and Kingston Hospital (1.4 miles south-west). Not far away are Kingston Hill Road area and Fishpond Wood and Beverley Meads.

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