Greater London · England

Remedial Sealant in Fortune Green

Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Fortune Green and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • A second bead peeling off the first
  • Leaks that keep coming back after resealing
  • Mould trapped under a layer of silicone

Trusted remedial sealant in Fortune Green

Landlord and commercial work in Fortune Green

We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.

In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

How we handle remedial sealant in Fortune Green

With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We are fully insured ARBOMaster approved applicators, and remedial work carries our 12-month guarantee. We work on expansion joints, shrunken worktop sealant and botched or over-sealed joints, and people most often call us about sealant that came away because the surface wasn’t prepared and worktop sealant that has shrunk and split.

In much of London, period terraces have been converted into flats over the years, and bathrooms were often squeezed into small rooms. Small, steamy rooms are where mould gets into sealant and grout fastest, and homes in Fortune Green are no different.

Our work is backed for twelve months, in Fortune Green and everywhere else we cover.

Place
Fortune Green (NW3, NW6, NW2)
Wider area
Greater London
Guarantee
One year on every job
Price
A clear price before we start
Phone
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator smiling as he applies silicone to the corner of a bath

Why act early in Fortune Green

DIY removal often leaves scratches and a film of residue, and the residue left behind stops the next bead bonding. Careful stripping is where most of our time goes. In a flat in Fortune Green, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.

Why Fortune Green clients choose us

  • You choose the colour before work begins
  • Approved under the ARBOMaster scheme
  • White, clear, grey or another colour, product permitting
  • We leave the area clean and tidy

Take a look at our cost guide and customer reviews.

What the job involves on each surface

Worktops & kitchens

If a worktop moves when you lean on it, the sealant will keep splitting. It needs fixing down first, which we’ll point out.

Movement & expansion joints

Movement joints in floors, walls and façades need a flexible sealant set to the right depth. Failed sealant is cut out, backing rod or tape is fitted and the joint resealed.

Bathrooms and kitchens in Fortune Green

Fortune Green 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’s water is hard, which leaves limescale on sealant, grout and taps.

If you live in an older home near Church of St Luke, walls and floors in older homes can move, and sealant and grout show it first. For landlords with property near West Hampstead Thameslink station, a joint that keeps failing is best fixed properly while the property is empty. As a London address, Fortune Green can be tricky for parking: let us know about parking bays, permits or a driveway.

Fortune Green is about 1 mile west of Hampstead, in Greater London. We provide remedial sealant to homes and businesses in Fortune Green and nearby, as part of our work across Greater London. 764 places in Greater London are on our list, large and small. For nearby work, see our London page.

Jobs for remedial sealant in NW3, NW6 and NW2 works the same way as everywhere else we cover. Remedial sealant is available to properties on Mill Lane, Ajax Road and Sarre Road. We also cover the places around Fortune Green: West Hampstead (1 mile east), Childs Hill (1 mile north), Hampstead (1 mile east), Greenhill (1 mile east) and Vale of Health (1 mile north-east). Within a short drive, we also cover London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).

Local landmarks in Fortune Green

Typical jobs here are in homes near Holly Bush pub, St Vedasts School For Boys and Kilburn Grange Park. The closest station to Fortune Green is West Hampstead Thameslink station, about 0.5 miles south. Well-known places in the area include Montfichet's Tower (4.9 miles south-east) and O2 Centre (0.8 miles south-east). Not far away are The Long Water and Westbere Copse.

Map of Fortune Green © OpenStreetMap contributors

What affects the quote in Fortune Green

The quote reflects the job in front of us. We look at:

  • The number and length of the joints
  • The type of sealant required
  • When we can work, for business premises
  • The old material and how stubborn it is

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.

Helping us quote

You don’t need to know the technical terms. Just tell us:

  • Photos by email, if that’s easy
  • Whether it has been sealed before
  • Whether it’s a home or a business
  • Roughly how big the job is

Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will come back to you with a quote.

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. We suggest:

  • Do not add new sealant on top of old
  • Air the bathroom so the sealant can dry
  • Use a soft cloth, not a scourer, on silicone
  • Report a tray that rocks or a worktop that lifts

Give the new sealant its full cure time: follow the cure time we give you.

Warning signs: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Any of them means it’s time for remedial work.

Common questions in Fortune Green

Do you work for hotels and guest houses in Fortune Green?

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.

Can parking be tricky for a visit in Fortune Green?

It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.

My shower still leaks after a reseal. Can you sort it?

Yes. Repeat leaks usually come from over-sealing, movement or water getting in elsewhere, and we deal with the cause first.

What should I tell you?

Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or drop us an email.

Should I try DIY first?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Do you guarantee remedial jobs?

Yes. Our 12-month guarantee covers the work.

Are you fully insured?

Yes. We are fully insured.

DIY sealant or a professional job?

Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The process

Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes 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 Fortune Green. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We protect the surfaces around the joint.
  2. Every layer of failed sealant is stripped out.
  3. The joint is degreased and checked for movement and leaks.
  4. Once dry, a suitable sealant is applied and tooled.
  5. We give you the cure time and explain what caused the failure.

How to prepare

  • Tell us about any previous sealing or DIY attempts
  • Mention any leaks or damp you’ve noticed
  • Keep children and pets away from the work area

Get a quote

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

Ask for a quote

Related advice

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