Portsmouth · England
Portsea Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right in Portsea, with a 12-month guarantee on every job. Ask us for a quote.
- Dark patches showing through the sealant
- Kitchen joints letting water behind the worktop
- Movement joints that have split or pulled away
Why deal with it now?
A failed seal rarely means a new bathroom. If the bath, tray and tiles are sound, remedial resealing normally puts it right. Where something else has failed, you will hear it from us. Homes in smaller places like Portsea can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why Portsea customers choose us
- Tidy, careful work
- 20+ years of sealant experience
- Sealant colour chosen to suit
- ARBOMaster approved applicator
Take a look at our cost guide or customer reviews.
Remedial sealant in Portsea, done properly
Water on the floor does not always mean failed silicone. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. We work on failed movement joints, mouldy bath & shower sealant and shrunken worktop sealant, and people most often call us about kitchen joints letting water behind the worktop and leaks that keep coming back after resealing.
Around Portsea, you will mostly find houses and bungalows, some older and some much newer. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Portsea (PO1, PO12, PO5)
- Region
- Portsmouth
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of remedial sealant
Every job gets its own quote. This is what makes a difference:
- The number and length of the joints
- When we can work, for business premises
- Access and height
- The old material and how stubborn it is
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Whether it’s a home or a business
If you are in Portsea and need remedial sealant, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Common problems we fix in Portsea
Joint depth matters. Sealant packed too deep, or stuck to the back of the joint as well as the sides, can’t stretch, and tears at the first real movement. Backing rod or bond-breaker tape prevents it.
Look out for any of the following:
- A shower that leaks however often it’s resealed
- Dark patches showing through the sealant
- Products that weren’t meant for the joint
- Smears and lumps from a botched reseal
For landlords with property near Portsmouth Harbour station, a joint that keeps failing is best fixed properly while the property is empty.
What to look for in a quote
- What the cure time is
- How long the guarantee is
- Are they insured?
- Which sealant they’ll use, and why
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
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.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours, depending on how many layers have to come out. Parking around Portsea is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We look at how the sealant has failed and check for movement or a leak path.
- All the old sealant comes out, including any layers underneath.
- The joint is cleaned, treated for mould and left to dry.
- Moving joints get backing and a flexible sealant to suit.
- We tool the joint and tell you about anything else that needs attention.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Move anything stored near the 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, and email pictures if that is easy.
Related advice
Remedial sealant around Portsea
Portsea is close to the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, which wears sealant and grout out faster than in a quiet home. There are hotels and other places to stay in and around Portsea. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
Homes close to St Ann's Church 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 Portsmouth Grammar School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Portsea is about 1 mile south-west of Portsmouth, in Portsmouth. Whether you’re in the middle of Portsea or further out, we cover remedial sealant for every kind of property, from flats and houses to offices and hotels. Our Portsmouth coverage runs to 19 places, and Portsea is one of them.
Here we cover the PO1, PO12 and PO5 postcode area for remedial sealant. Streets in the area include Main Road, Park Road and Scott Road, all of which we cover. We also cover Portsmouth Point (1 mile south), Clayhall (2 miles south-west), Haslar (2 miles south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). Within a short drive, we also cover Hilsea (3 miles north-east), Wymering (4 miles north-east), Paulsgrove (4 miles north), Cosham (3 miles north-east), Drayton (4 miles north-east) and Farlington (5 miles north-east).
Landmarks near Portsea
Typical jobs here are in homes near The Ship & Castle pub, St Jude's CofE Primary School and Charter Academy. Portsea has its own railway station: Portsmouth Harbour station. Other landmarks nearby include Royal Portsmouth Hospital (0.8 miles east) and Genesis Expo Creationist Museum (within half a mile south). Not far away are Milton Locks and Portsdown Hill.
Common questions in Portsea
Do you work for hotels and guest houses in Portsea?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Is Portsea within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Are you fully insured?
Yes. We’re fully insured for domestic and commercial work.
My shower still leaks after a reseal. Can you sort it?
Yes. Repeat leaks usually come from over-sealing, movement or water getting in elsewhere, and we deal with the cause first.
What do you need from me for a quote?
Let us know what needs doing and where. We’ll ask anything else we need to know.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can failed expansion joints be resealed?
Yes. Backing sets the depth and stops the sealant sticking to the back.
What sealant work can’t fix
To be straight with you, there are a few things sealant won’t fix:
- Water damage behind tiles that needs a tiler
- A cracked shower tray or bath (that needs repair or replacing)
- Movement from fittings that are not supported
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
What we seal
- Failed movement joints
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
Towns and villages near Portsea
What else we do in Portsea
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Look for stains below bathrooms now and then
- Always have old sealant cut out, not covered
- Use a soft cloth, not a scourer, on silicone
- Act on a lifting corner straight away
Keep the room ventilated: run the fan during and after showers, or open a window.
A split movement joint lets rain into walls and floors, and left long enough, the edges of the joint can crumble. A joint with sound edges is far easier to reseal.