Greater London · England
Welling Bathroom Resealing
Bath, shower, basin, wet room, worktop and sink resealing for Welling, backed by a 12-month guarantee. Ask us for a quote.
- New sealant laid over old sealant that is now lifting
- Shrunken sealant along the back of a worktop
- Cracked, shrunken or lifting silicone
How we quote for bathroom resealing
Every job gets its own quote. These are the things that affect it:
- Which sealant suits the joint
- When we can work, for business premises
- Access and height
- Whether old sealant or filler has to be cut out
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
Asking for a quote
When you call or email, it’s useful to know:
- Roughly how big the job is
- Any access issues, like height or stairs
- The problem you’ve noticed
- Any previous sealing or DIY work
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or drop us an email.
About our bathroom resealing in Welling
With over 20 years in the trade, we reseal baths, showers and kitchens in homes across Welling. We’re fully insured ARBOMaster approved applicators, and every job carries our one-year guarantee. We work on basins & vanity units, wet rooms and shower trays & enclosures, and the jobs we see most are damp behind the bath or under the tray and leaking joints on a shower screen.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. In Welling, bathroom resealing is as much about a room looking cared for as about keeping water out.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Welling (DA16, DA15, DA6)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Bathroom resealing in Welling: local notes
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. London has hard water, so limescale builds up on sealant, grout and fittings.
For site and facilities teams at buildings such as Danson 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. Homes close to St John's Church include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Welling is about 9 miles east of London, in Greater London. Welling gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our Greater London coverage runs to 764 places, and Welling is one of them. We also work in London, about 9 miles from Welling.
Every address in DA16, DA15 and DA6 is within our area for bathroom resealing, from the main roads to the quietest streets. Whether your property is on Days Lane, Hook Lane and Lyme Road or a nearby road, our applicators can take on the job. Being close to the A207, Welling is easy for our applicators to reach. We also cover Crook Log (1 mile east), Blendon (1 mile south-east), Upton (1 mile east), Bexleyheath (1 mile east) and West Heath (1 mile north-east). Within a short drive, we also cover London (9 miles west), City of Westminster (12 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles north-west) and Shoreditch (9 miles north-west).
Around Welling
Typical jobs here are in homes near Nags Head pub, Danson Park and Bexley Grammar School, among other places. The closest station to Welling is Welling station, roughly 0.5 miles north-west. Nearby you’ll also find Greenwich Castle (5 miles west) and Broadway Shopping Centre (1.6 miles east). Green spaces nearby include The Tarn and Summer Hill.
How the visit works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. Expect the work to take half a day or less for one room, longer when the kitchen is included, and we explain the cure time before we leave. 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 start by protecting the area and stripping out the old bead, including the film left on the tiles.
- The joint is cleaned, degreased and treated for mould.
- We let it dry fully and fill the bath with water before sealing.
- We apply anti-fungal sanitary silicone in one even bead and tool it neatly.
- We clear away and tell you when it can get wet, normally after around 24 hours.
Preparing for the visit
- Mention any tricky access
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
Getting a quote
We do not publish a price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
How the job changes by surface
Baths
Acrylic baths flex the most, and even steel and cast iron baths settle slightly when full. Filling the bath first allows for that movement.
Basins & vanity units
Vanity units have long, worktop-style joints against the wall. Water that gets behind can damage the unit, so the joint is sealed in one unbroken line.
Leave it or put it right?
Mould removers can fade the surface of a stained bead, but where mould is inside the silicone it generally comes back. The lasting answer is to remove the bead and start again. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble for homes in Welling.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What you get with us
- You choose the colour before work begins
- We leave the area clean and tidy
- Sealant colour chosen to suit
- A choice of colours where the product allows
See our cost guide and what customers say.
Do you need bathroom resealing in Welling?
Sealant laid on a damp, dusty or greasy joint never bonds properly. Soap residue, oils and leftover silicone film all get in the way, so a rushed job can start to lift early.
If you can see any of these, it’s time to have the joints looked at:
- Black mould in the silicone that won’t clean off
- Lumpy, uneven sealant from a DIY attempt
- Water getting behind the kitchen upstand
- A bead that has pulled away from the tiles
Welling is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- How long the guarantee is
- What the cure time is
- What happens if the job turns out different
- What insurance they hold
Also near Welling
Other services in Welling
Common questions in Welling
Can parking be tricky for a visit in Welling?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
I live in a flat in Welling. Can a failed seal leak into the flat 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.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can mouldy silicone be sorted out?
Yes. Once mould has grown into the silicone, it usually can’t be cleaned out for good, so the bead comes out, the joint is treated and new anti-fungal silicone goes in.
When can I use the bath or shower again?
After around 24 hours in most cases. You’ll get the exact cure time before we leave.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep scourers and sharp tools away from the bead
- Wipe up water along the back of the worktop
- Stick to a soft cloth and a mild cleaner
- Check the joints every few months for splits or lifting
Treat the new bead gently when you clean: warm soapy water and a soft cloth do the job. Scourers and blades can nick the surface, because a damaged bead gives mould a foothold.
Mould that starts as a few spots spreads through the bead. Once it’s deep in the silicone, cleaning usually won’t remove it, and nearby grout often goes the same way. Catching it early keeps it a simple reseal.