Greater London · England
Remedial sealant & repairs in Adelphi, Greater London
We cover Adelphi for removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly.
- Sealant that came away because the surface wasn’t prepared
- Sealant applied over old sealant that has lifted
- Movement joints that have split or pulled away
Remedial sealant for homes and businesses in Adelphi
A movement joint stops working when its sealant splits or sets hard. The old sealant comes out and backing goes in to control the depth, before resealing with a flexible product suited to the movement. Common call-outs are for floor or wall movement joints that have failed and sealant applied over old sealant that has lifted, across expansion joints, leaking tray & enclosure joints and mouldy bath & shower sealant.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, and bathrooms were often squeezed into small rooms. Small, steamy rooms are where mould gets into sealant and grout fastest, and homes in Adelphi are no different.
Every job comes with our one-year guarantee.
- Place
- Adelphi (W1D, W1F, WC2H)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Quotes for remedial sealant in Adelphi
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The number and length of the joints
- The old material and how stubborn it is
- Mould in or behind the old joints
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Helping us quote
To help us quote quickly, let us know:
- The rough size of the job
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Leave it or put it right?
Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. In a flat in Adelphi, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
The cost depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins.
Why book with us
- Quality sealants from Arbo and Everbuild
- Domestic, commercial and hotel work
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
Read how sealant jobs are priced or our reviews.
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for most joints, depending on how much old sealant has to come out. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- We look at how the sealant has failed and check for movement or a leak path.
- We strip the joint completely, removing any layers below.
- The joint is cleaned, treated for mould and left to dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- We tool the joint and tell you about anything else that needs attention.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Advice
Adelphi questions
Is parking an issue for remedial sealant in Adelphi?
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 take on hotel work around Adelphi?
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.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
What happens if the problem is the tray or the plumbing?
Then we explain what we have found. A plumber or fitter may be needed.
Can failed expansion joints be resealed?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, and reseal with a flexible product.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
What else we do in Adelphi
When it is not the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- Failed tanking or loose tiles behind the sealant
- A bath, tray or worktop that moves until it’s properly fixed
- Plumbing leaks behind walls or under trays
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Adelphi
- Failed movement joints
- Expansion joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Botched or over-sealed joints
- Leaking tray & enclosure joints
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Do not point over movement joints
- Run the fan after every shower
- Keep bleach and abrasives off the bead
- Ask why a joint failed before redoing it
Watch the joint over the first few weeks, especially if movement was the problem. If anything changes, just call 0345 464 0079 or email us.
Leaks through failed sealant grow over time. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.
Remedial sealant around Adelphi
Adelphi has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room. 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.
Adelphi is in London, so parking needs planning: let us know about parking bays, permits or a driveway. In the older streets around Savoy Chapel, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. If you look after a building such as St Clement Danes CofE Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Adelphi is about 1 mile south-east of Marylebone, in Greater London. Whether you are in the middle of Adelphi or further out, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. Across Greater London, we cover 764 places, Adelphi among them.
Here we cover the W1D, W1F and WC2H postcode area for remedial sealant. That includes homes and businesses on York Road, Drury Lane and Maiden Lane. Main roads around Adelphi include the A301 and A400. Other places close to Adelphi include Covent Garden (1 mile north), Charing Cross (1 mile south-west), Aldwych (1 mile north-east), Seven Dials (1 mile north-west) and West End (1 mile north-west). Further out, we also cover Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Near you in Adelphi
Around Adelphi, our work takes us to homes and buildings near The BFI Reuben Library, St Andrew's and St John's Church of England Primary School and London Nautical School, among other places. You’ll also find Victoria Embankment Gardens (within half a mile south) and The Theodore Bullfrog pub (less than half a mile south-west). Adelphi has its own railway station: London Charing Cross station. Other landmarks nearby include London Museum and Institute of Natural History (less than half a mile north-east) and Montfichet's Tower (1 mile east). Open spaces near Adelphi include St. James's Park Lake and Barnsbury Wood.