Portsmouth · England

Wymering Remedial Sealant

We cover Wymering for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly.

  • Floor or wall movement joints that have failed
  • Over-sealed joints coming away
  • Smears and lumps from a botched reseal

Remedial sealant for Wymering homes and businesses

Looking after it afterwards

After the cure time, these simple habits help:

  • Always have old sealant cut out, not covered
  • Look for stains below bathrooms now and then
  • Keep the room well ventilated
  • Get the cause of a repeat leak found before resealing

Keep an eye on the joint at first, especially if movement was the problem. If anything changes, just phone 0345 464 0079 or email us.

A split movement joint lets rain into walls and floors, and the longer it’s left, the more the joint edges break down. Resealing while the edges are sound is simpler.

How we handle remedial sealant in Wymering

Decorators’ caulk in a shower, bathroom silicone on a window, a rigid filler in a movement joint fails however neatly it’s applied. We take it out and use a sealant made for that joint. We work on shrunken worktop sealant, expansion joints and leaking tray & enclosure joints, and common reasons people get in touch are sealant that came away because the surface wasn’t prepared and worktop sealant that has shrunk and split.

Homes around Wymering range from older cottages to more recent houses. Older homes can move a little with the seasons, which is hard on tired sealant and rigid grout.

All our work is covered by our 12-month guarantee.

Where
Wymering (PO6, PO2)
Region
Portsmouth
Guarantee
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

Wymering questions

Is Wymering in your area for remedial sealant?

Yes, Wymering is within the area we cover. We work across London and the South East. Just ring 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 Cosham station?

Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.

Can you reseal a split movement joint?

Yes. Failed movement joints are cut out and resealed with backing and a flexible sealant suited to the movement.

Someone resealed my shower and it’s leaking again. Can you help?

Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.

Should I try DIY first?

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.

Will there be a smell?

Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.

Do I have to be there?

We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.

What we cannot put right

Honest advice matters more to us than a booking, so here’s what sealant cannot fix:

  • Older mastics that may need an asbestos check before removal
  • A tray or bath that’s cracked
  • Movement from fittings that are not supported

If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.

Where we work in Wymering

  • Botched or over-sealed joints
  • Expansion joints
  • Failed movement joints
  • Shrunken worktop sealant
  • Mouldy bath & shower sealant
  • Leaking tray & enclosure joints

What happens on the day

Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a typical bath or shower, longer where several layers have been applied. For a job in Wymering, 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.

  1. We start by checking the joint for movement, leaks and the reason it failed.
  2. All the old sealant comes out, including any layers underneath.
  3. Next, any mould is treated and the joint dried.
  4. We use the right backing and sealant for any joint that moves.
  5. We tool the joint and tell you about anything else that needs attention.

How to prepare

  • Keep children and pets away from the work area
  • On commercial sites, let us know about site rules
  • Clear the area around the work

Ask for a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or email us.

Get a price

Related advice

Why act early in Wymering

Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it, so the joint can be treated and resealed. In a smaller place like Wymering, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.

Why book with us

  • Rated 4.9 stars on Google
  • Tidy, careful work
  • One-year guarantee on every job
  • Sanitary silicone with an anti-fungal additive in wet areas

See our cost guide and what customers say.

Surface by surface

Mouldy bath & shower sealant

Mould that has grown into silicone does not clean out for good. All of it comes out, and the joint is treated and dried ahead of a new anti-fungal bead.

Worktops & kitchens

Kitchen joints often have grease and cleaning residue deep in them, so we spend extra time cleaning before resealing.

Should I try it myself first?

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Work for landlords, hotels and businesses

If you manage several properties in or around Wymering, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.

Landlords and letting agents in Wymering can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.

Wymering homes and their sealant

Wymering is close to 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, which leaves limescale on sealant, grout and fittings.

For site and facilities teams at buildings such as Medina Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes. Homes close to Church of St Peter and St Paul include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them. If you let a flat or house near Cosham station, botched sealant from a previous quick fix is easier to strip out between tenants.

Wymering is about 3 miles north of Portsmouth, in Portsmouth. Every kind of property in Wymering can book us for remedial sealant, old or new, large or small. The work is guaranteed for a year. Wymering is one of 19 towns and villages in Portsmouth we cover for remedial sealant.

Jobs for remedial sealant in PO6 and PO2 is quoted and booked the same way as anywhere else. Remedial sealant is available to properties on Dean Road, Deal Road and Park Lane. Main roads around Wymering include the A397, which makes travel easy. We also cover the places around Wymering: Cosham (1 mile south-east), Paulsgrove (1 mile west), Hilsea (1 mile south), Drayton (1 mile east) and Widley (1 mile north-east). Larger places within reach include Portsmouth (3 miles south), Southsea (4 miles south), Milton (4 miles south), Landport (3 miles south), Baffins (3 miles south) and Portsea (4 miles south-west).

Local landmarks in Wymering

Typical jobs here are in homes near Springfield School, UTC Portsmouth and Alexandra Park and the streets around them. There’s a railway station in Wymering itself: Cosham station. Well-known places in the area include World War I Remembrance Centre (1.4 miles south-east) and Tricorn Centre (3.1 miles south). Open spaces near Wymering include Portsdown Hill and Southmoor Nature Reserve.

Map of Wymering © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job