Greater London · England
Remedial sealant & repairs in Yiewsley, Greater London
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Yiewsley. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant applied over old sealant that has lifted
- Thick, messy sealant smeared over tiles
- Kitchen joints letting water behind the worktop
FAQs for Yiewsley
Is parking a problem for a job in Yiewsley?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
I let a flat near Southall station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Is remedial work guaranteed?
Yes. Remedial work carries the same 12-month guarantee as all our work.
What if the leak is not the sealant?
Then we explain what we have found. You may need a plumber or bathroom fitter before any new sealant goes on.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides, which lets it stretch.
Where do you work from?
We’re based in Crawley, and we work across South East England, London and Scotland.
Can I add another job to the visit?
Yes. Just list everything you need.
Remedial sealant in Yiewsley
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have pictures when you phone 0345 464 0079 or email us, and say how long ago it was last done. Typical jobs include over-sealed joints coming away and caulk or the wrong sealant used in a wet area, across failed movement joints, botched or over-sealed joints and expansion joints.
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 Yiewsley are no different.
There’s a 12-month guarantee on every job.
- Location
- Yiewsley (UB5, UB4, UB1)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Quotes for remedial sealant in Yiewsley
You’ll get a clear quote before we start. It takes into account:
- When we can work, for business premises
- Whether the work is at height
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
There’s no need for technical detail. Just tell us:
- The problem you’ve noticed
- How we’d reach the joints
- Where the job is, and your postcode
- Whether it has been sealed before
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Remedial sealant around Yiewsley
London has hard water, so limescale builds up on sealant, grout and fittings. 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.
Schools such as Brookside Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. If you let a flat or house near Southall station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Yiewsley is about 2 miles north-east of Hayes, in Greater London. For remedial sealant in and around Yiewsley, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Greater London, Yiewsley included. Our area takes in 764 places across Greater London, large and small. You can also see our page for London, roughly 13 miles from Yiewsley.
Jobs for remedial sealant in UB5, UB4 and UB1 is quoted and booked the same way as anywhere else. Local streets include Owen Road, Friar Road and Maple Road. Neighbouring places we cover for remedial sealant include Yeading (1 mile north), Dormers Wells (2 miles south-east), Northolt (2 miles north-east), Southall (2 miles south) and South Ruislip (2 miles north). Within a short drive, we also cover London (13 miles east), City of Westminster (10 miles east), Marylebone (11 miles east), Kensington (8 miles east), St Pancras (12 miles east) and Shoreditch (13 miles east).
Local landmarks in Yiewsley
In Yiewsley, that means homes and buildings near White Hart Public House, Northala Fields and Barnhill Community High School. The nearest railway station is Southall station, roughly 1.8 miles south. Nearby you will also find Hayes Cottage Hospital (1.5 miles south-west) and The Chimes (3.8 miles west). Green spaces nearby include Northala Fields and Yeading Brook Meadows.
What sealant work can’t fix
A few problems are outside what sealant work can do:
- A tray or bath that is cracked
- Tiles that have come away from the wall
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
Where we work in Yiewsley
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Failed movement joints
Landlord and commercial work in Yiewsley
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.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes a few hours, depending on how many layers have to come out for a typical job. For a job in Yiewsley, parking and access are the things to plan: let us know about parking, the floor we will 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.
- Next, any mould is treated and the joint dried.
- We use the right backing and sealant for any joint that moves.
- Finally we finish the joint and talk you through what we found.
How to prepare
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Move anything stored near the joints
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Related advice
Why it’s worth doing now in Yiewsley
A failed seal rarely means a new bathroom. If the bath, tray and tiles are sound, remedial resealing usually puts it right. If they’re not, we’ll tell you. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Yiewsley, the repair is bigger than a sealant job.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Yiewsley
- 12-month guarantee on every job
- We never seal over old sealant
- Neat joints and a tidy finish
- Experience in homes, commercial sites and hotels
Take a look at our cost guide and our reviews.
Also near Yiewsley
Also in Yiewsley
Do you need remedial sealant in Yiewsley?
How a joint is built matters as much as the product. A bead bonded on three sides, or laid too thick, cannot flex, and tears at the first real movement. Backing rod or bond-breaker tape prevents it.
Common reasons people contact us are:
- Dark patches showing through the sealant
- Worktop sealant that has shrunk and split
- Torn expansion joints
- Decorators’ caulk around a bath or shower
For an older house near a landmark such as St Joseph the Worker & Dovetail Centre, older homes can move a little, which is hard on rigid grout and tired sealant.
What your quote should include
- Whether they’re fully insured
- Whether you can choose the colour
- What preparation is included
- How hidden problems are handled
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Check ceilings under showers for marks
- Ask why a joint failed before redoing it
- Act on a lifting corner right away
- Don’t add new sealant on top of old
Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.
A split movement joint lets rain into walls and floors, and left long enough, the edges of the joint can crumble. Resealing while the edges are sound is simpler.