Hampshire · England
Middle Wallop Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Middle Wallop. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant peeling off a dusty or damp surface
- Floor or wall movement joints that have failed
- Leaks that keep coming back after resealing
What the job involves on each surface
Leaking trays & enclosures
A shower that leaks after resealing often has a tray that moves or an enclosure sealed on the wrong side. Both are checked before any new sealant goes on.
Worktops & kitchens
Shrunken worktop sealant leaves a gap that lets water into the back edge. We strip it, degrease the joint and reseal.
About our remedial sealant in Middle Wallop
A movement joint stops working when its sealant splits or sets hard. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. If you’re dealing with black mould underneath the bead and sealant applied over old sealant that has lifted, we can put it right, on leaking tray & enclosure joints, botched or over-sealed joints and expansion joints alike.
For a small place like Middle Wallop, remedial sealant is planned like any other job: the journey and access are simply agreed in advance. In the bathroom or kitchen, the work is the same as in any town.
Big or small, you get the same 12-month guarantee in Middle Wallop and across Hampshire.
- Where
- Middle Wallop (SO20)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Middle Wallop
What else we do in Middle Wallop
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Common problems we fix in Middle Wallop
Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, and the sealant lifts or goes mouldy from underneath.
Signs it’s time to call us include:
- Caulk or the wrong sealant used in a wet area
- Black mould underneath the bead
- Torn expansion joints
- Sealant applied over old sealant that has lifted
If you look after a building such as Wallop Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
What to look for in a quote
- When the joint can take water or movement
- Which sealant they’ll use, and why
- What happens if they find a problem under the old sealant
- Are they insured?
What affects the quote in Middle Wallop
The price is agreed before any work begins. It takes into account:
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- The type of sealant required
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
Helping us quote
To make quoting easier, let us know:
- What’s wrong with the joints now
- Where the property is
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.
Middle Wallop homes and their sealant
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Grateley station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. For an older house near a landmark such as Church of St Andrew, older homes can move a little, which is hard on rigid grout and tired sealant.
Middle Wallop is about 7 miles south-west of Andover, in Hampshire. Wherever you are in the SO20 postcode area, we cover remedial sealant for homes and businesses. Our Hampshire coverage runs to 683 places, Middle Wallop among them. We also work in Southampton, around 17 miles away.
Postcode districts we cover here for remedial sealant: SO20. If you need remedial sealant at a property on Station Road, Knockwood Lane and Farley Street or a nearby road, our applicators can take on the job. If you are just outside Middle Wallop, we cover Nether Wallop (1 mile south-east), Over Wallop (1 mile north-west), Kentsboro (2 miles north-east), Fox (4 miles north) and Red Rice (4 miles north-east). Further out, we also cover Winchester (13 miles south-east), Eastleigh (15 miles south-east), Andover (7 miles north-east), Totton (15 miles south), Chandler's Ford (13 miles south-east) and Romsey (11 miles south-east).
Landmarks near Middle Wallop
Around Middle Wallop, our work takes us to homes and buildings near The George Inn and the streets around them. The nearest railway station is Grateley station, about 3 miles north-west. Green spaces nearby include Quarley Hill.
What we cannot put right
Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:
- Movement from fittings that aren’t supported
- Water damage behind tiles that needs a tiler
- Sealant in an older building that needs testing for asbestos first
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Expansion joints
- Failed movement joints
- Botched or over-sealed joints
Questions from Middle Wallop
Do you cover smaller places like Middle Wallop?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Grateley station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you have insurance?
Yes. We’re fully insured.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Middle Wallop, along with the rest of our area.
Do you offer different sealant colours?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before work begins.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
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, and we deal with the cause first.
Does remedial work come with a guarantee?
Yes, for 12 months. If we’ve pointed out another problem, getting it fixed helps the new joint last.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for most joints, depending on how much old sealant has to come out, and the area is left clean. For a village or hamlet like Middle Wallop, 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.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
Ask for a quote
For remedial sealant in Middle Wallop, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Check ceilings under showers for marks
- Run the fan after every shower
- Never fill a movement joint with mortar or grout
- Report a tray that rocks or a worktop that lifts
Leave the new joint to cure fully before it gets wet or moves: follow the cure time we give you.
Signs to act on: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Any of them means it’s time for remedial work.