Isle of Wight · England

Remedial sealant & repairs in Merstone, Isle of Wight

We cover Merstone for removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Sealant applied over old sealant that has lifted
  • Beads that never stuck properly
  • Black mould underneath the bead

Trusted remedial sealant in Merstone

Remedial sealant for homes and businesses in Merstone

The wrong product in the wrong joint fails however neatly it’s applied. We take it out and use a sealant made for that joint. We work on expansion joints, leaking tray & enclosure joints and failed movement joints, and people most often call us about a shower that leaks however often it’s resealed and gaps opening along the back of the worktop.

In a village or hamlet like Merstone, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Place
Merstone (PO30)
Wider area
Isle of Wight
Guarantee
A year, on every job
Quote
A clear price before we start
Phone
0345 464 0079
Last updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

Should I try it myself first?

A careful DIYer can reseal a simple joint, 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.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.

Keeping the joints in good condition

Aftercare is simple:

  • Don’t wait for a small gap to become a leak
  • Keep an eye on the ceiling below the bathroom
  • Air the bathroom so the sealant can dry
  • Do not add new sealant on top of old

Do not let anyone seal over it later. New silicone does not bond to old.

A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.

Bathrooms and kitchens in Merstone

Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

Around Merstone, as everywhere, remedial sealant is only as good as the preparation behind it.

Merstone is about 3 miles south-east of Newport, in the Isle of Wight. Across the PO30 area, we can carry out remedial sealant at your property. Our the Isle of Wight coverage runs to 125 places, and Merstone is one of them. There’s also a page for Portsmouth, about 13 miles away.

All of PO30 is within our area for remedial sealant. We cover properties on Merstone Lane, Chapel Lane and Newlands. Nearby, we also carry out remedial sealant in Arreton (1 mile north-east), Rookley (1 mile south-west), Hale Common (1 mile south-east), Rookley Green (1 mile south-west) and Blackwater (2 miles north-west). We also work in nearby towns such as Newport (3 miles north-west), Ryde (6 miles north-east), Cowes (7 miles north), Sandown (4 miles east), Shanklin (4 miles south-east) and Ventnor (5 miles south-east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.

Landmarks near Merstone

The nearest railway station is Shanklin station, roughly 3.8 miles south-east of the centre. Nearby you’ll also find Whitecroft Hospital (2.2 miles west) and Carisbrooke Castle (3.1 miles north-west). Green spaces nearby include Stenbury Down and Alverstone Mead.

Map of Merstone © OpenStreetMap contributors

Surface by surface

Movement & expansion joints

Bonding on three sides is a common reason movement joints tear. Backing rod or bond-breaker tape prevents it, so the sealant grips the two sides only.

Leaking trays & enclosures

A cracked tray, failed valve or leaking waste needs a different fix. We will tell you what we find.

How it works

We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job usually takes a few hours, depending on how many layers have to come out. Somewhere like Merstone needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We look at how the sealant has failed and check for movement or a leak path.
  2. All the old sealant comes out, including any layers underneath.
  3. We clean the joint, treat any mould and let it 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 if the joints have been sealed before
  • Plan for the work area to be out of bounds to pets and children
  • Let us know if you’ve seen damp or leaks

Get a quote

To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear price before any work starts.

Get a price

Advice

How we quote for remedial sealant

The price is agreed before any work begins. It takes into account:

  • How easy the joints are to reach
  • How much old sealant there is and how hard it is to remove
  • Whether there’s mould to deal with
  • The number of rooms or windows

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.

Asking for a quote

Photos help, but a description is a good start. Please mention:

  • If someone has resealed it before
  • Any access issues, like height or stairs
  • Roughly how big the job is
  • The address or postcode of the job

If you are in Merstone and need remedial sealant, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.

Common questions in Merstone

Will you come out to Merstone?

Yes, Merstone is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Do you cover Merstone for remedial sealant?

Yes. Our work covers London and the South East, and Merstone is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before resealing.

Are you ARBOMaster approved?

Yes. Mr Mastic is an ARBOMaster approved applicator.

How long should I leave it?

It depends on the product and the temperature. Before we leave, we will tell you the cure time.

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

Yes. There’s usually a reason: sealant over sealant, movement or another leak, so we find that first.

Do you fix expansion and movement joints?

Yes. The depth is set with backing so the sealant only bonds to the two sides, which lets it stretch.

Does remedial work come with a guarantee?

Yes. Remedial work carries the same 12-month guarantee as all our work.

When to call us in Merstone

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.

These are the problems we are asked about most:

  • Torn expansion joints
  • A second bead peeling off the first
  • Smears and lumps from a botched reseal
  • Mould trapped under a layer of silicone

For landlords with property near Shanklin station, a joint that keeps failing is best fixed properly while the property is empty.

Questions to ask before you book

  • What happens if the job turns out different
  • How long the guarantee is
  • What the cure time is
  • Who does the work, and how experienced they are

Choosing a sealant specialist

Landlords, agents and businesses in Merstone

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.

For anyone letting property in or around Merstone, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

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