Hampshire · England

Remedial sealant & repairs in Blendworth, Hampshire

Removing failed, mouldy or leaking sealant and putting it right for homeowners, landlords and businesses in Blendworth. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Floor or wall movement joints that have failed
  • Thick, messy sealant smeared over tiles
  • Mould trapped under a layer of silicone

Need remedial sealant in Blendworth?

Signs you need remedial sealant in Blendworth

How a joint is built matters as much as the product. Sealant packed too deep, or stuck to the back of the joint as well as the sides, can’t stretch, so it tears when the joint moves. Backing rod or bond-breaker tape prevents it.

If you can see any of these, it’s time to have the joints looked at:

  • Caulk or the wrong sealant used in a wet area
  • Gaps opening along the back of the worktop
  • A shower that leaks however often it’s resealed
  • Mould trapped under a layer of silicone

If you live in an older home near Church of the Holy Trinity, older homes can move a little, which is hard on rigid grout and tired sealant.

Questions to ask before you book

  • The length of the guarantee
  • How the surfaces are prepared before sealing
  • Is VAT in the price?
  • Whether all the old sealant comes out first

10 questions to ask before you book

How we handle remedial sealant in Blendworth

If a joint has been resealed and is leaking again, it’s worth a proper look. Send pictures when you ring 0345 464 0079 or email us, along with when it was last resealed. If you’re dealing with wide, uneven beads that look worse than the old ones and worktop sealant that has shrunk and split, we can put it right, on botched or over-sealed joints, leaking tray & enclosure joints and expansion joints alike.

In a village or hamlet like Blendworth, homes are often older cottages and farmhouses alongside a few newer houses. Movement in older walls and floors tends to show first as cracked grout or split sealant.

There’s a 12-month guarantee on every job, whatever its size.

Where
Blendworth (PO8)
Region
Hampshire
Cover
12 months on all our work
Quotes
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026
Sealant gun being used along the bath-to-tile joint in a beige tiled bathroom

Should I try it myself first?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

Leave it or put it right?

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. Older cottages and farmhouses around Blendworth can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.

Why choose Mr Mastic in Blendworth

  • 12-month guarantee on every job
  • ARBOMaster approved applicator
  • Trusted Arbo and Everbuild sealants
  • A sealant colour to suit the surroundings

See what affects the cost or our reviews.

What sealant work can’t fix

New sealant can’t fix everything, and we will tell you before we start. It won’t solve:

  • Tiles that have come away from the wall
  • Plumbing leaks behind walls or under trays
  • Cracks in the fitting rather than the joint

Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.

Where we work in Blendworth

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

For landlords and businesses

If you manage several properties in or around Blendworth, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

What happens on the day

We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for most joints, depending on how much old sealant has to come out. Somewhere as small as Blendworth, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we work out whether the problem is the sealant, movement or a leak.
  2. Each layer is cut out and the residue cleaned off.
  3. We treat any mould and dry the joint thoroughly.
  4. We reseal with a product suited to the joint, backed where needed.
  5. We finish neatly and point out anything that needs another trade.

Before we arrive

  • Move anything stored near the joints
  • On commercial sites, let us know about site rules
  • Mention any tricky access

How to get a quote

Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details, and pictures are welcome.

Get a quick quote

Read more

Your questions about remedial sealant in Blendworth

Can you help a landlord with a rental near Rowlands Castle station?

Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.

Is Blendworth within the area you cover?

Yes. Blendworth is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Will there be a smell?

There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.

Can you remove old sealant without damaging the bath?

Yes, with care. The old bead is cut and lifted with tools that suit the surface, then clean off the residue. We point out any damage that is already there.

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.

Where is Mr Mastic based?

Our base is in Crawley, and we cover South East England, London and all of Scotland.

Does someone need to be in?

Access is agreed with you when the job is booked. Indoors, that usually means someone at home.

How much does remedial sealant cost in Blendworth?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.

What remedial sealant looks like in Blendworth

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.

Schools such as Horndean Church of England Junior School are buildings too, and washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. Rented homes near Rowlands Castle station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.

Blendworth is about 1 mile north-east of Horndean, in Hampshire. Blendworth gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 683 places across Hampshire, from the larger towns to small villages. You can also see our page for Portsmouth, about 8 miles away.

Here we cover the PO8 postcode area for remedial sealant. We also cover the places around Blendworth: Chalton (2 miles north-east), Forestside (3 miles east), West Marden (4 miles east), Buriton (4 miles north) and Weston (5 miles north). We also work in nearby towns such as Gosport (11 miles south-west), Havant (4 miles south), Fareham (10 miles south-west), Hedge End (14 miles west), Waterlooville (3 miles south-west) and Petersfield (6 miles north).

Near you in Blendworth

Typical jobs here are in homes near Horndean Technology College and The Ship & Bell pub. Blendworth’s nearest station is Rowlands Castle station, roughly 2.1 miles south-east of the centre. A little further out are Havant War Memorial Hospital (4.3 miles south) and Clanfield Earthwork (2.1 miles north). The countryside around Blendworth includes Windmill Hill.

Map of Blendworth © OpenStreetMap contributors

Surface by surface

Leaking trays & enclosures

Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, including the screen profile and tray edges.

Windows & doors

Failed frame mastic is often hard, cracked and in several layers. We remove it all and clean back to sound surfaces.

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