Portsmouth · England
Landport Remedial Sealant
Remedial sealant for Landport and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Thick, messy sealant smeared over tiles
- Products that weren’t meant for the joint
- Beads that never stuck properly
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
About our remedial sealant in Landport
Movement and expansion joints fail when the sealant cannot stretch. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. If you are dealing with smears and lumps from a botched reseal and a shower that leaks however often it’s resealed, we can help.
Around Landport, you will mostly find houses and bungalows, 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.
Your job is guaranteed for a year, as with all our work.
- Place
- Landport (PO1, PO2, PO5)
- Wider area
- Portsmouth
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
More services for Landport
When something else is needed
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- A leaking trap, valve or supply pipe
- Cracks in the fitting rather than the joint
- A tray or worktop that needs refixing first
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Failed movement joints
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Shrunken worktop sealant
What the job involves on each surface
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, tray edges and screen profiles included.
Mouldy bath & shower sealant
Black mould inside the bead won’t scrub out. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.
Your questions about remedial sealant in Landport
Can you help a landlord with a rental near Portsmouth & Southsea station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you work for hotels and guest houses in Landport?
Yes, hotels and guest houses are among the places we work. A room-by-room programme keeps most rooms in use while the work goes on.
Is remedial work guaranteed?
Yes, with our one-year guarantee. If we’ve pointed out another problem, getting it fixed helps the new joint last.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you when we finish.
Why deal with it now?
A joint that has failed twice will fail again unless the cause is dealt with. Finding it, whether movement, water from elsewhere or an unsuitable product, ends the cycle. In an older home around Landport, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
Why choose Mr Mastic in Landport
- Rated 4.9 stars on Google
- Homes, businesses and hotels
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
See our cost guide or customer reviews.
Landport homes and their sealant
Landport is within about 1 mile 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. Landport has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
If you look after a building such as Ark Dickens Primary Academy, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. Rented homes near Portsmouth & Southsea station change hands often, and botched sealant from a previous quick fix is easier to strip out between tenants.
Landport is about 1 mile south-west of Portsmouth, in Portsmouth. Anywhere in PO1, our applicators can take on remedial sealant. Landport is one of 19 places in Portsmouth where we work for remedial sealant.
Here we cover the PO1, PO2 and PO5 postcode area for remedial sealant. You will find streets such as Lake Road, Watts Road and Alfred Road, and we cover them all. If you are just outside Landport, we cover Portsmouth (1 mile north-east), Fratton (1 mile east), Rudmore (1 mile north), Kingston (1 mile east) and North End (1 mile north). Within a short drive, we also cover Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north-east) and Farlington (4 miles north-east).
What’s near Landport
In Landport, that means homes and buildings near The Painters Arms, St Edmund's Catholic School and Alexandra Park, among other places. Landport has its own railway station: Portsmouth & Southsea station. Nearby you will also find Royal Portsmouth Hospital (within half a mile south-west) and Charles Dickens Birthplace Museum (under half a mile north). For a walk, there’s Milton Locks and Portsdown Hill.
When to call us in Landport
Movement tears sealant that isn’t designed for it. Flexing baths, rocking trays and building movement joints will split a rigid or thin bead.
Look out for these signs:
- Movement joints that have split or pulled away
- Thick, messy sealant smeared over tiles
- Caulk or the wrong sealant used in a wet area
- Sealant peeling off a dusty or damp surface
In the older streets around Church of All Saints, older homes can move a little, which is hard on rigid grout and tired sealant.
Questions to ask before booking
- When the joint can take water or movement
- Whether VAT is included
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
For anyone letting property in or around Landport, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
How it works
We keep the work tidy and contained to the joints we’re treating. The job generally takes a few hours for a typical bath or shower, longer where several layers have been applied. A visit to Landport is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.