Greater London · England
Remedial Sealant in Hanwell
Professional remedial sealant in and around Hanwell, with every bit of old sealant taken out first and a one-year guarantee.
- Repeat leaks from the same joint
- Caulk or the wrong sealant used in a wet area
- Sealant applied over old sealant that has lifted
How we handle remedial sealant in Hanwell
Getting old sealant out properly is slow, careful work. We cut out every layer, clear the residue and degrease the surfaces, taking care not to scratch the surfaces around it. New sealant only bonds to a clean, dry joint. We work on expansion joints, botched or over-sealed joints and mouldy bath & shower sealant, and common reasons people get in touch are beads that never stuck properly and kitchen joints letting water behind the worktop.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. A compact bathroom that steams up every day is hard on silicone and grout.
We stand behind the work with a one-year guarantee.
- Where
- Hanwell (W7, W13, UB2)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before work begins. Most jobs take a few hours, depending on how many layers have to come out. In a London area like Hanwell, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We start by checking the joint for movement, leaks and the reason it failed.
- Every layer of old sealant is cut and cleaned out.
- The joint is cleaned, treated for mould and left to dry.
- Moving joints get backing and a flexible sealant to suit.
- The new joint is tooled neatly and we explain anything else we found.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- On commercial sites, let us know about site rules
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
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Work for landlords, hotels and businesses
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Towns and villages near Hanwell
Also in Hanwell
Your questions about remedial sealant in Hanwell
Do you work in hotels near Hanwell?
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.
Could a tired shower seal in my Hanwell flat affect the neighbours below?
Yes, and the first sign is often a stain on the ceiling below. A proper reseal before the leak starts is the easy fix.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do you cover Hanwell?
Yes. We’re based in Crawley and work across South East England, London and Scotland, Hanwell included.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Is remedial work guaranteed?
Yes. Remedial work carries the same 12-month guarantee as all our work.
Can old silicone be taken off without scratching the tiles?
Yes. Residue is removed with a product suited to the surface rather than scraped hard, so the new sealant bonds cleanly.
What affects the cost of remedial sealant
Your quote is based on your job. We take into account:
- Access and height
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- The number of rooms or windows
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What to tell us for a quote
When you call or email, these details help:
- The address or postcode of the job
- Photos by email, if that is easy
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
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.
What we cannot put right
A few problems are outside what sealant work can do:
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Failed tanking or loose tiles behind the sealant
- Older mastics that may need an asbestos check before removal
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before booking.
What we seal
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Expansion joints
- Failed movement joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
How the job changes by surface
Windows & doors
A frame that keeps leaking may not be the mastic. We check the joint and tell you if it looks to be something else.
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.
Should I try it myself first?
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.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Remedial sealant around Hanwell
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, which is why it’s worth fixing early. There are hotels and other places to stay in and around Hanwell. 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 Joseph's Catholic 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. In the older streets around Church of St Mellitus, walls and floors in older homes can move, and sealant and grout show it first.
Hanwell is about 1 mile west of Ealing, in Greater London. Homes, rented property, offices and hotels in Hanwell is covered for remedial sealant. The work is guaranteed for a year. Hanwell is one of 764 towns and villages in Greater London where we work for remedial sealant. We also work in London, about 10 miles from Hanwell.
All of W7, W13 and UB2 is within our area for remedial sealant, from the main roads to the quietest streets. You’ll find streets such as Park Road, Green Lane and Felix Road, all of which we cover. Hanwell sits on or near the A4001. We also cover West Ealing (1 mile west), Ealing (1 mile east), Dormers Wells (1 mile north-west), South Ealing (1 mile south-east) and Pitshanger (2 miles north-east). Further out, we also cover London (10 miles east), City of Westminster (8 miles east), Marylebone (8 miles east), Kensington (6 miles east), St Pancras (10 miles east) and Shoreditch (11 miles east).
Around Hanwell
In Hanwell, that means homes and buildings near Drayton Manor High School, Cuckoo Schools and Drayton Green and the streets around them. There’s a railway station in Hanwell itself: Hanwell station. Other landmarks nearby include Ealing Hospital (within half a mile west) and Gunnersbury Park House - Large Mansion (2.3 miles east). Open spaces near Hanwell include Middle Lake and Castlebar Hill.
What we are called out for in Hanwell
All sealant wears out eventually. Mould grows into the silicone, the surface hardens and the bead shrinks, faster where ventilation is poor. At that point it has to come out.
Look out for these signs:
- Thick, messy sealant smeared over tiles
- Decorators’ caulk around a bath or shower
- Dark patches showing through the sealant
- Repeat leaks from the same joint
If you let a flat or house near Hanwell station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What to look for in a quote
- What preparation is included
- How the colour is chosen
- What insurance they hold
- Is VAT in the price?