Southampton · England
Remedial sealant & repairs in Rownhams, Southampton
Specialist remedial sealant for Rownhams: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Wide, uneven beads that look worse than the old ones
- Sealant that came away because the surface wasn’t prepared
- Gaps opening along the back of the worktop
Remedial sealant in Rownhams, done properly
In Rownhams, as anywhere, remedial jobs tend to look alike: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. We strip each one back and start from scratch. If you have sealant applied over old sealant that has lifted and sealant peeling off a dusty or damp surface, we can put it right.
In a smaller place like Rownhams, homes are mostly houses and bungalows rather than flats, from older cottages to newer builds. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Rownhams (SO16)
- Region
- Southampton
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Windows & doors
Some leaks around windows come from the wall or the window itself. We check the joint and tell you if it looks to be something else.
Leaking trays & enclosures
When failed joints are the cause, they’re all cut out and renewed, including the screen profile and tray edges.
What remedial sealant looks like in Rownhams
Rownhams is within about 3 miles of the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, and sealant and grout that work that hard wear out sooner. Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For landlords with property near Redbridge station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. In the older streets around Church of St John, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. For site and facilities teams at buildings such as Rownhams St John's Church of England Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Rownhams is about 3 miles north-east of Totton, in Southampton. Jobs in Rownhams get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Rownhams is one of 40 places in Southampton we cover.
All of SO16 is within our area for remedial sealant, from the main roads to the quietest streets. Streets in the area include Rownhams Way, Horns Drove and Rownhams Close, and we cover them all. Other places close to Rownhams include Upton (1 mile west), Nursling (1 mile south-west), Hillyfields (1 mile south-west), Lordswood (1 mile south-east) and Toothill (1 mile north-west). We also work in nearby towns such as Southampton (3 miles south-east), Townhill Park (4 miles east), Midanbury (4 miles east), Thornhill (6 miles south-east), Chartwell Green (5 miles east) and Harefield (5 miles south-east).
Local landmarks in Rownhams
In Rownhams, that means homes and buildings near Oaklands Community School, St James' Park and Oasis Academy Lord's Hill. For rail, the closest station is Redbridge station, roughly 2.1 miles south of the centre. Well-known places in the area include Princess Anne Hospital (1.3 miles south-east) and Eling Experience (2.4 miles south-west). Open spaces near Rownhams include Testwood Lakes.
What we can’t put right
Sealant is not the answer to every problem, and we’ll tell you before any work starts. Sealant won’t put right:
- Movement from fittings that aren’t supported
- Plumbing leaks behind walls or under trays
- Tiles that have come away from the wall
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
- Expansion joints
- Botched or over-sealed joints
What happens on the day
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work starts. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. For a job in Rownhams, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you are told about anything else we found.
Getting ready for the visit
- Mention any tricky access
- Let us know about parking restrictions
- Tell us about any water getting in
How to get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
Why it’s worth doing now in Rownhams
Mould under a bead can’t be reached by cleaning. Removal is the only way to get at it, and the joint treated and dried before resealing. Around Rownhams, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
Why choose Mr Mastic in Rownhams
- 180+ five-star Google reviews
- One-year guarantee on every job
- Tidy, careful work
- Anti-fungal silicone where joints get wet
What affects the cost of remedial sealant
We quote each job individually. These are the things that affect it:
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- How many areas need sealing
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- What’s wrong with the joints now
- Whether it’s a home or a business
- Any access issues, like height or stairs
- Photos by email, if that is easy
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work and send you a clear quote.
What else we do in Rownhams
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Questions from Rownhams
Is Rownhams in your area for remedial sealant?
Yes, Rownhams is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Is Rownhams within the area you cover?
Yes, Rownhams is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Someone sealed over the old bead. Can you fix it?
Yes. We remove every layer; new silicone doesn’t bond to old silicone, which is why over-sealing fails.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. Repeat leaks generally come from over-sealing, movement or water getting in elsewhere, and we deal with the cause first.
Does remedial work come with a guarantee?
Yes. Remedial work carries the same 12-month guarantee as all our work.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.