Greater London · England
Westbourne Green Remedial Sealant
Specialist remedial sealant for Westbourne Green: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Dark patches showing through the sealant
- Thick, messy sealant smeared over tiles
- Worktop sealant that has shrunk and split
Different surfaces, different methods
Worktops & kitchens
Shrunken worktop sealant leaves a gap that lets water into the back edge. We strip it, degrease the joint and reseal.
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, including the screen profile and tray edges.
Remedial sealant in Westbourne Green
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, before resealing with a flexible product suited to the movement. We work on botched or over-sealed joints, leaking tray & enclosure joints and expansion joints, and people most often call us about a second bead peeling off the first and caulk or the wrong sealant used in a wet area.
London homes include a lot of flats, conversions and mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in Westbourne Green more than a cosmetic job.
There’s a 12-month guarantee on every job, large or small.
- Location
- Westbourne Green (W2, W9, W11)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
We’ll always be straight with you, so here’s what new sealant won’t do:
- A tray or worktop that needs refixing first
- Older mastics that may need an asbestos check before removal
- Water damage behind tiles that needs a tiler
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Leaking tray & enclosure joints
- Expansion joints
- Botched or over-sealed joints
- Failed movement joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
How it works
At the end, we look at the finished work together. The work normally takes a few hours for a typical bath or shower, longer where several layers have been applied, depending on the size of the job. In a London area like Westbourne Green, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We start by checking the joint for movement, leaks and the reason it failed.
- 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.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
- Tell us about any water getting in
Get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
Advice
Nearby places to Westbourne Green
Other services in Westbourne Green
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Westbourne Green: your questions answered
Can you help a landlord with a rental near London Paddington station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Could a tired shower seal in my Westbourne Green flat affect the neighbours below?
It can, yes: water that gets past a split bead or cracked grout often runs under the tray and shows on the ceiling below. Replacing the sealant and grout before that happens is much less trouble than repairing a neighbour’s ceiling.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Do you fix expansion and movement joints?
Yes. We cut out the failed sealant, fit backing and reseal with a flexible product.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Do you guarantee remedial jobs?
Yes. Remedial work carries the same 12-month guarantee as all our work.
Do you cover Westbourne Green?
Yes. We work in Westbourne Green and the rest of Greater London, as part of our work across South East England, London and Scotland. For a quote, phone 0345 464 0079 or email us.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Remedial sealant in Westbourne Green: local notes
London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early.
As a London address, Westbourne Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Rented homes near London Paddington station change hands often, and a joint that keeps failing is best fixed properly while the property is empty. If you live in an older home near St Mary Magdalene, older homes can move a little, which is hard on rigid grout and tired sealant.
Westbourne Green is about 2 miles north-east of Kensington, in Greater London. Every kind of property in Westbourne Green is covered for remedial sealant. Every job comes with our 12-month guarantee. 764 places in Greater London are on our list, from the larger towns to small villages.
We work across the W2, W9 and W11 postcode area for remedial sealant. That includes homes and businesses on Salem Road, Talbot Road and Harrow Road. Main roads around Westbourne Green include the A404 and A4206, which makes travel easy. Nearby, we also carry out remedial sealant in Little Venice (1 mile east), Westbourne (1 mile south-west), Maida Vale (1 mile north), Paddington Green (1 mile east) and Paddington (1 mile east). We also work in nearby towns such as London (4 miles east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (8 miles north-east), Hoxton (5 miles east) and Whitechapel (5 miles east).
What’s near Westbourne Green
We work in homes and buildings around Maida Vale School, Emslie Horniman's Pleasance and Abdus Salam Library and the streets around them. Nearby too are The Bridge House (less than half a mile east) and Westminster Academy (under half a mile west). Westbourne Green’s nearest station is London Paddington station, about 0.5 miles south-east of the centre. Well-known places in the area include Greek Orthodox Cathedral Treasury Museum (0.6 miles south) and Paddington General Hospital (within half a mile north-west). Green spaces nearby include The Long Water and Greville Place nature reserve.
What affects the cost of remedial sealant
Every job gets its own quote. This is what makes a difference:
- Which sealant suits the joint
- How many areas need sealing
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
To make quoting easier, let us know:
- How we’d reach the joints
- Any previous sealing or DIY work
- The type of property
- The problem you’ve noticed
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or email us.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Get the cause of a repeat leak found before resealing
- Keep the room well ventilated
- Never fill a movement joint with mortar or grout
- Use a soft cloth, not a scourer, on silicone
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.
Why it’s worth doing now in Westbourne Green
A failed seal rarely means a new bathroom. When the fittings are sound, stripping and resealing the joints is often enough. If they’re not, we’ll tell you. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Westbourne Green, the repair is bigger than the sealant job would have been.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Why choose Mr Mastic in Westbourne Green
- Anti-fungal silicone where joints get wet
- Full insurance on every job
- 180+ five-star Google reviews
- Homes, businesses and hotels
Take a look at how sealant jobs are priced and what customers say.