West Sussex · England
Southwater Remedial Sealant
Remedial sealant for Southwater, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant applied over old sealant that has lifted
- Smears and lumps from a botched reseal
- Repeat leaks from the same joint
Remedial sealant in Southwater, 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. If that’s what we find, we’ll tell you rather than reseal something that will not fix it. If you have gaps opening along the back of the worktop and caulk or the wrong sealant used in a wet area, we can help, whatever the surface.
Even in a smaller place like Southwater, bathrooms and kitchens see heavy daily use. Whether it’s a cottage bathroom or a newer en suite, the approach is the same: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
We stand behind the work with a one-year guarantee.
- Place
- Southwater (RH13)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Stripping out botched sealant adds time to a reseal, but not by much: it takes a few hours, depending on how many layers have to come out. Compared with chasing the same leak every few months, it’s time well spent. In an older home around Southwater, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in Southwater
- Experience in homes, commercial sites and hotels
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
- You choose the colour before work begins
Take a look at what affects the cost and what customers say.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
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. Everything old must be removed first.
Quotes for remedial sealant in Southwater
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- How easy the joints are to reach
- The old material and how stubborn it is
- The size of the job
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a few hours, depending on how many layers have to come out. In a smaller place like Southwater, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
Before we arrive
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Also near Southwater
More services for Southwater
Common problems we fix in Southwater
Sealant needs a clean, dry surface with no grease on it. Soap film, dust, damp or old residue stop it gripping, and the joint starts to come away early.
Signs it’s time to call us include:
- Over-sealed joints coming away
- A shower that leaks however often it’s resealed
- Thick, messy sealant smeared over tiles
- Worktop sealant that has shrunk and split
Rented homes near Christs Hospital station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What your quote should include
- Who turns up on the day
- When the joint can take water or movement
- Is the old sealant removed completely?
- What product goes in the joint
What remedial sealant looks like in Southwater
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you live in an older home near Holy Innocents Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them. For site and facilities teams at buildings such as Southwater Infant Academy, 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.
Southwater is about 3 miles south of Horsham, in West Sussex. Homes, rented property, offices and hotels in Southwater can book us for remedial sealant, old or new, large or small. Every job comes with our 12-month guarantee. We cover 371 towns and villages across West Sussex, large and small. We also work in Crawley, about 9 miles from Southwater.
Here we cover the RH13 postcode area for remedial sealant. That includes homes and businesses on Station Road, Walmer Close and Pevensey Road and the roads around them. Other places close to Southwater include Tower Hill (2 miles north), Nuthurst (2 miles east), Brooks Green (2 miles west), Barns Green (2 miles west) and Maplehurst (2 miles south-east). Further out, we also cover Crawley (9 miles north-east), Horsham (3 miles north), Worthing (14 miles south), Haywards Heath (11 miles east), Burgess Hill (11 miles south-east) and Shoreham-by-Sea (13 miles south).
What’s near Southwater
We work in homes and buildings around The Lintot pub and The Doyle School of Design and Technology and the streets around them. The closest station to Southwater is Christs Hospital station, about 1.9 miles north-west. Nearby you will also find Christs Hospital School Museum (1.5 miles north-west) and Horsham Hospital (3.2 miles north). Open spaces near Southwater include Knepp Wildland.
Looking after it afterwards
To keep the joints looking good and working properly:
- Never seal over old silicone
- Ask why a joint failed before redoing it
- Keep bleach and abrasives off the bead
- Keep the room well ventilated
Keep the room ventilated: use the extractor or open a window after showering.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
Common questions in Southwater
Is Southwater in your area for remedial sealant?
Yes, Southwater is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do you work for landlords with property near Christs Hospital station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Can you remove old sealant without damaging the bath?
Yes. We avoid heavy scraping and use the right cleaner for each surface.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How do I get a quote for remedial sealant in Southwater?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
How long does remedial resealing take?
Allow a few hours for a typical bath or shower, longer where several layers have been applied. You’ll know the timing when we quote.
Can I add another job to the visit?
Yes. Just list everything you need.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides.
When it is not the sealant
A few problems are outside what sealant work can do:
- A tray or bath that is cracked
- Older mastics that may need an asbestos check before removal
- A bath, tray or worktop that moves until it’s properly fixed
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Expansion joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Failed movement joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints