Greater London · England
Remedial Sealant in Clerkenwell
Removing failed, mouldy or leaking sealant and putting it right for homeowners, landlords and businesses in Clerkenwell. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mould trapped under a layer of silicone
- Worktop sealant that has shrunk and split
- Sealant peeling off a dusty or damp surface
Clerkenwell: your questions answered
I live in a flat in Clerkenwell. Can a failed seal leak into the flat below?
Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that’s down. Cutting out the old sealant and laying a new bead early stops it getting that far.
Do you work in hotels near Clerkenwell?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Are you insured?
Yes. We’re fully insured.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
About our remedial sealant in Clerkenwell
Movement and expansion joints fail when the sealant can’t stretch. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. If you have sealant peeling off a dusty or damp surface and sealant applied over old sealant that has lifted, we can help, whatever the surface.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. For a bathroom or kitchen in Clerkenwell, getting the joints right keeps water where it belongs and the room looking clean.
There’s a 12-month guarantee on every job.
- Location
- Clerkenwell (N1, EC1V, WC1X)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in Clerkenwell
All sealant wears out eventually. Mould grows into the silicone, the surface hardens and the bead shrinks, especially in damp, poorly aired rooms. Then the only fix is removal and a new bead.
Keep an eye out for any of the following:
- Kitchen joints letting water behind the worktop
- Floor or wall movement joints that have failed
- Repeat leaks from the same joint
- Sealant peeling off a dusty or damp surface
If you let a flat or house near Farringdon station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Before you book anyone
- How the surfaces are prepared before sealing
- Is VAT in the price?
- How the colour is chosen
- What happens if the job turns out different
Aftercare tips
Good habits help new joints last longer. Our tips:
- Keep bleach and abrasives off the bead
- Get the cause of a repeat leak found before resealing
- Keep an eye on the ceiling below the bathroom
- Don’t wait for a small gap to become a leak
Watch the joint over the first few weeks, particularly where the original failure was caused by movement. If anything changes, just ring 0345 464 0079 or send us an email.
A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into floors, walls or ceilings. Sorting it early limits the damage.
Towns and villages near Clerkenwell
More services for Clerkenwell
Remedial sealant in Clerkenwell: local notes
London has hard water, so limescale builds up on sealant, grout and fittings. There are hotels and other places to stay in and around Clerkenwell. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
If you look after a building such as St Peter and St Paul RC Primary School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. For an older house near a landmark such as St James's Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Clerkenwell is about 2 miles north of London, in Greater London. Wherever you are in the N1 postcode area, our applicators can take on remedial sealant. We cover 764 towns and villages across Greater London.
Here we cover the N1, EC1V and WC1X postcode area for remedial sealant. Remedial sealant is available to properties on Long Lane, City Road and Noel Road and the roads around them. Main roads around Clerkenwell include the A1 and A5201, so getting to you is simple. Other places close to Clerkenwell include Farringdon (1 mile south), Angel (1 mile north), Smithfield (1 mile south), Holborn (1 mile south-west) and St Pancras (1 mile west). We also work in nearby towns such as Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (4 miles south).
Near you in Clerkenwell
We work in homes and buildings around Barts Health Archives, The Sekforde pub and Elizabeth Garrett Anderson School, among other places. Also close by are Tech City College (less than half a mile north-east) and King Square Gardens (within half a mile north-east). There’s a railway station in Clerkenwell itself: Farringdon station. Well-known places in the area include Brunswick Centre (0.9 miles west) and Montfichet's Tower (0.9 miles south). Not far away are St. James's Park Lake and Ludgate Hill.
Leave it or put it right?
Ripping out a bathroom is not usually needed. If the bath, tray and tiles are sound, remedial resealing generally puts it right. Where something else has failed, you’ll hear it from us. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble for homes in Clerkenwell.
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why book with us
- We never seal over old sealant
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
See our cost guide or customer reviews.
What affects the quote in Clerkenwell
We do not publish a price list. The quote depends on:
- Mould in or behind the old joints
- The old material and how stubborn it is
- How many areas need sealing
- Which sealant suits the joint
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
When you call or email, these details help:
- Photos by email, if that’s easy
- Any access issues, like height or stairs
- The problem you’ve noticed
- Where the property is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, phone 0345 464 0079 or drop us an email.
How it works
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a typical bath or shower, longer where several layers have been applied. In Clerkenwell, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
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What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- A leaking trap, valve or supply pipe
- A tray or bath that is cracked
- Failed tanking or loose tiles behind the sealant
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Clerkenwell
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Expansion joints
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
What the job involves on each surface
Leaking trays & enclosures
A shower that leaks after resealing often has a tray that moves or an enclosure sealed on the wrong side. Both are checked before we reseal.
Movement & expansion joints
A sealant stuck to the back of the joint cannot stretch. Backing stops that, letting the sealant flex between the two faces.