Isle of Wight · England

Alverstone Remedial Sealant

Removing failed, mouldy or leaking sealant and putting it right for Alverstone, backed by a one-year guarantee. Call for a quick quote.

  • Beads that never stuck properly
  • Products that weren’t meant for the joint
  • Smears and lumps from a botched reseal

Book remedial sealant in Alverstone

About our remedial sealant in Alverstone

A joint that keeps letting you down needs more than another bead. Send photos when you phone 0345 464 0079 or send us an email, and say how long ago it was last done. We work on mouldy bath & shower sealant, leaking tray & enclosure joints and botched or over-sealed joints, and the jobs we see most are a shower that leaks however often it’s resealed and products that weren’t meant for the joint.

Being in a small place like Alverstone makes no difference to the job itself: it just means planning the journey and access beforehand. In the bathroom or kitchen, the work is the same as in any town.

Every job is covered by our 12-month guarantee, wherever you are in the Isle of Wight.

Mr Mastic applicator kneeling beside a white bath, sealing the joint where the bath meets beige wall tiles
Location
Alverstone (PO36)
Wider area
Isle of Wight
Cover
A year, on every job
Quotes
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026

Quotes for remedial sealant in Alverstone

There’s no set price list, because jobs vary so much. The quote depends on:

  • The product the joint needs
  • How many rooms, windows or areas are involved
  • Mould in or behind the old joints
  • The number and length of the joints

Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.

What we need to know

There’s no need for technical detail. It helps if you can tell us:

  • The problem you’ve noticed
  • The address or postcode of the job
  • A few pictures by email, if you can
  • Whether it has been sealed before

We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details and send pictures if you have them.

Different surfaces, different methods

Mouldy bath & shower sealant

Mould that has grown into silicone doesn’t clean out for good. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.

Movement & expansion joints

A sealant stuck to the back of the joint cannot stretch. Backing stops that, so the sealant grips the two sides only.

What happens if it’s left?

It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and any film left behind stops new sealant sticking. Careful removal is most of a remedial job. Older cottages and farmhouses around Alverstone can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

The cost depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.

Why Alverstone clients choose us

  • Homes, businesses and hotels
  • Old sealant always removed completely
  • An ARBOMaster approved applicator
  • A sealant colour to suit the surroundings

See how sealant jobs are priced or customer reviews.

When to call us in Alverstone

Using the wrong product is a common cause: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. None of them last.

Most people get in touch when they notice one of these:

  • Sealant applied over old sealant that has lifted
  • Leaks that keep coming back after resealing
  • Black mould underneath the bead
  • Gaps opening along the back of the worktop

If you live in an older home near All Saints' Church, older homes can move a little, which is hard on rigid grout and tired sealant.

Questions to ask before you book

  • How long to leave it before use
  • How the colour is chosen
  • How the joint is cleaned and prepared
  • Whether they seal over old material or remove it

How to choose a mastic man

Should I try it myself first?

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Bathrooms and kitchens in Alverstone

Alverstone is close to the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, 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.

For landlords with property near Sandown station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Managing a site like Newchurch Primary School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.

Alverstone is about 4 miles south of Ryde, in the Isle of Wight. Alverstone gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 125 towns and villages across the Isle of Wight, from the larger towns to small villages. For nearby work, see our Portsmouth page, about 11 miles away.

All of PO36 is within our area for remedial sealant, from the main roads to the quietest streets. If you’re just outside Alverstone, we cover Alverstone Garden Village (1 mile north-west), Queen's Bower (1 mile south-west), Skinner's Hill (1 mile west), Adgestone (1 mile north-east) and Lake (1 mile south-east). Further out, we also cover Newport (5 miles north-west), Ryde (4 miles north), Cowes (8 miles north-west), Ventnor (5 miles south), East Cowes (8 miles north-west) and Oakfield (4 miles north). If you are somewhere remote, the job takes a little more planning, so let us know when you get in touch.

Around Alverstone

In Alverstone, that means homes and buildings near Sandown Bay Academy, The Bay Church of England School and The Pointer Inn and the streets around them. The nearest railway station is Sandown station, about 1.1 miles south-east. Well-known places in the area include Arthur Webster Memorial Hospital for Children (2 miles south) and Wight Aviation Museum (0.7 miles south). The countryside around Alverstone includes Brading Down and Alverstone Mead.

Map of Alverstone © OpenStreetMap contributors

The process

We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for most joints, depending on how much old sealant has to come out and we leave things clean and tidy. For a village or hamlet like Alverstone, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We start by checking the joint for movement, leaks and the reason it failed.
  2. Every layer of old sealant is cut and cleaned out.
  3. The joint is cleaned, treated for mould and left to dry.
  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.

Getting ready for the visit

  • Mention any tricky access
  • Mention if the joints have been sealed before
  • For indoor joints, keep the area dry beforehand if you can

How to get a quote

We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.

Get a price

Related advice

FAQs for Alverstone

I let a flat near Sandown station. Can you help?

Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.

Is Alverstone within the area you cover?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is there any odour?

It depends on the product. Some products have a noticeable smell, others very little.

Where are you based?

We work from Crawley. We cover Alverstone and the rest of the Isle of Wight, along with the rest of our area.

Is remedial work guaranteed?

Yes. Our one-year guarantee covers the work, and we are fully insured.

Is it worth trying it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Can you work on commercial sites?

Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.

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.

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

Housing providers, facilities teams and property managers book us too in Alverstone and across the Isle of Wight. We can quote a run of properties together.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job