Greater London · England
Mastic man in SW7
We cover every part of the SW7 postcode district, including Kensington, Brompton and South Kensington. Every joint is properly prepared, with a one-year guarantee.
Where we work in SW7
Our services across SW7
- Bathroom & kitchen resealing
- Commercial & hotel sealant
- Gutter, fascia & soffit sealing
- Remedial sealant & repairs
- Floor & skirting joints
- Regrouting
- Glazing & conservatory sealant
- Fire-rated sealant
- New-build mastic & snagging
- Sand mastic for sash & case windows
- External & façade joints
- Window & door mastic
- See all services
Tell us what needs doing and your postcode for a quick quote: phone 0345 464 0079 or send us an email.
About bathroom resealing in SW7
Homes in SW7 have the same weak spots as anywhere else: bath edges, tray joints, basin backs and kitchen upstands. Every joint is cut out, cleaned and left dry before it’s resealed. We work on shower trays & enclosures, sinks & splashbacks and basins & vanity units, and the jobs we see most are gaps between the worktop and the wall and two layers of silicone, both failing.
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes around two hours for one bath or shower, longer for a whole bathroom, depending on the amount of work.
- Protection goes down around the bath, shower or worktop.
- We cut away the old sealant and clean off what’s left.
- Mould is treated, then the joint is left to dry thoroughly.
- Any bath is filled with water, then we lay a bead of anti-fungal silicone in white, clear or a matching colour.
- We finish the joint, clear up and tell you how long to leave it before it gets wet.
What affects the price in SW7
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and send you a clear quote before any work starts.
Why clients in SW7 choose us
- 12-month guarantee on every job
- White, clear, grey or another colour, product permitting
- Any old sealant cut out fully, not covered over
- We are fully insured
Ask for a quote
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Local landmarks in Kensington
Around Kensington, our work takes us to homes and buildings near Church of St Barnabas, Kensington School and St Barnabas and St Philip's CofE Primary School and the streets around them. You’ll also find Holland Park (under half a mile north-west), Holland Park School (within half a mile north), Scarsdale Tavern (within half a mile south-east) and Abdus Salam Library (1 mile east). There’s a railway station in Kensington itself: Kensington Olympia station. A little further out are Kensington Arcade (within half a mile east) and London Museum (0.7 miles north-east). The countryside around Kensington includes WWT London Wetland Centre and The Long Water.
Bathrooms and kitchens across SW7
From Kensington, Brompton and South Kensington to its smaller places, homes across SW7 have bathrooms and kitchens of every age. Sealant and grout wear out in all of them, whether it’s a family bathroom, a rented flat or a hotel en suite.
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings. Whatever the job in SW7, surfaces are cleaned back properly before new sealant goes in.
Kensington: Homes close to Church of St Barnabas include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them. For site and facilities teams at buildings such as St Barnabas and St Philip's CofE 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.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Surface by surface
Baths
Acrylic baths flex the most, while steel and cast iron baths move less but still settle when full. Loading the bath with water before sealing allows for it.
Basins & vanity units
A vanity top has a joint along the wall and sometimes at the sides. Water that gets behind can damage the unit, so the joint is sealed in one unbroken line.
Common problems we fix in SW7
No sealant lasts indefinitely. Daily water, heat and cleaning products take their toll over the years, so its life depends on how the room is used, cleaned and aired.
The most common problems we see are:
- Black mould in the silicone that will not clean off
- Leaks into the floor or ceiling below
- Shrunken sealant along the back of a worktop
- Sealant that has split, shrunk or peeled away
What affects the quote in SW7
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- Access and height
- The old material and how stubborn it is
- The amount of work
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- How we’d reach the joints
- Pictures of the joints, sent by email
- The rough size of the job
- If someone has resealed it before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.
Aftercare tips
Looking after new joints is easy:
- Keep an eye on the corners, where splits start
- Keep scourers and sharp tools away from the bead
- Let new sealant cure fully before it gets wet
- Clean with a mild bathroom cleaner and a soft cloth
Wipe up standing water along the worktop joint and keep hot pans off the bead. The drier the joint stays, the longer it lasts.
Watch for the early signs: lifting ends, gaps, dark shadows under the bead or a stain downstairs. Any of these means the joint needs attention.
Common questions in SW7
Where are you based?
Mr Mastic is based in Crawley. We cover SW7 and the rest of Greater London.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once.
How long does it take to reseal a bath or shower?
It takes a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen. You will know how long to expect before we start.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Are you fully insured?
Yes. We are fully insured.
My sealant has gone black. Can you sort it?
Yes, we replace the mouldy bead. Sprays can fade the marks, but cutting it out and resealing is what lasts. Good ventilation helps keep it away.