Greater London · England
Remedial Sealant in Tooting Bec
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Tooting Bec. Fully insured, ARBOMaster approved and guaranteed for a year.
- Decorators’ caulk around a bath or shower
- Sealant peeling off a dusty or damp surface
- Thick, messy sealant smeared over tiles
Work for landlords, hotels and businesses
Letting agents and landlords in Tooting Bec can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Remedial sealant in Tooting Bec, done properly
Not every leak is a sealant leak. A cracked tray, a failed shower valve or a leaking waste can look just the same. When the fault is elsewhere, we say so instead of resealing for the sake of it. We work on botched or over-sealed joints, leaking tray & enclosure joints and expansion joints, and the jobs we see most are sealant applied over old sealant that has lifted and beads that never stuck properly.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, with bathrooms fitted into whatever space was available. Small, steamy rooms are where mould gets into sealant and grout fastest, and homes in Tooting Bec are no different.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Where
- Tooting Bec (SW17, SW19, CR4)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Tooting Bec questions
Could a tired shower seal in my Tooting Bec flat affect the neighbours below?
Yes, it can. Water that gets past failed sealant or cracked grout can run under the bath or tray and show up on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.
I let a flat near Tooting station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you fix a reseal that hasn’t worked?
Yes. There’s usually a reason: sealant over sealant, movement or another leak, so we find that first.
Do you offer different sealant colours?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Places near Tooting Bec
Also in Tooting Bec
Looking after it afterwards
So the new joints stay in good condition:
- Keep the room well ventilated
- Find out why the sealant failed first
- Keep an eye on the ceiling below the bathroom
- Never seal over old silicone
Clean gently: no scraping, scouring pads or harsh chemicals.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into floors, walls or ceilings. Early action keeps it to a sealant job.
Signs you need remedial sealant in Tooting Bec
Joint depth matters. Sealant packed too deep, or stuck to the back of the joint as well as the sides, cannot stretch, so it tears when the joint moves. Backing sets the depth and stops that.
Common reasons people contact us are:
- Kitchen joints letting water behind the worktop
- Torn expansion joints
- Products that weren’t meant for the joint
- Wide, uneven beads that look worse than the old ones
Tooting Bec is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Comparing quotes
- Who turns up on the day
- Are they insured?
- How long the guarantee is
- Whether the sealant suits the joint
Bathrooms and kitchens in Tooting Bec
London has hard water, so limescale builds up on sealant, grout and fittings. In a London flat, water from a failed bath or shower seal can reach the neighbours below, so tired sealant is best dealt with early.
For an older house near a landmark such as St Augustine, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Managing a site like St Boniface RC Primary School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Tooting Bec is about 3 miles south-west of Stockwell, in Greater London. From the centre of Tooting Bec to the outskirts, remedial sealant is available for homes and businesses alike. Tooting Bec is one of 764 places in Greater London where we work. We also work in London, about 6 miles from Tooting Bec.
Jobs for remedial sealant in SW17, SW19 and CR4 is quoted and booked the same way as anywhere else. If you need remedial sealant at a property on Vant Road, Byton Road and Avarn Road or a nearby road, we can help. Neighbouring places we cover for remedial sealant include Tooting (1 mile south-east), Colliers Wood (1 mile south), Furzedown (1 mile east), Summerstown (1 mile north-west) and Streatham Park (1 mile east). Larger places within reach include London (6 miles north-east), City of Westminster (6 miles north), Marylebone (6 miles north), Kensington (5 miles north), St Pancras (7 miles north) and Shoreditch (8 miles north-east).
What’s near Tooting Bec
Typical jobs here are in homes near Wandle Park, King's Head pub and Ernest Bevin College. For rail, the closest station is Tooting station, roughly 0.6 miles south of the centre. A little further out are Grove Hospital (within half a mile south-west) and Southside Wandsworth (2.1 miles north-west). For a walk, there’s Henman Hill and Battersea Park Lake.
How we quote for remedial sealant
Jobs vary more than people expect. What affects the quote:
- The number and length of the joints
- How easy the joints are to reach
- When we can work, for business premises
- How many areas need sealing
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
For remedial sealant in Tooting Bec, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. 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.
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours for most joints, depending on how much old sealant has to come out, depending on the size of the job. In Tooting Bec, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- Next, any mould is treated and the joint dried.
- 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
- Clear items away from the joints we’re working on
- Let us know about earlier repairs to the joints
- Mention any tricky access
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
Surface by surface
Over-sealed & botched joints
Every layer has to come out, including the smears and film on surrounding tiles. Only a clean joint will take a new bead.
Mouldy bath & shower sealant
Mould that has grown into silicone does not clean out for good. All of it comes out, and the joint is treated and dried ahead of a new anti-fungal bead.