Hampshire · England
Remedial Sealant in Rowlands Castle
Removing failed, mouldy or leaking sealant and putting it right for Rowlands Castle, backed by a one-year guarantee. Ask us for a quote.
- Kitchen joints letting water behind the worktop
- Sealant peeling off a dusty or damp surface
- Smears and lumps from a botched reseal
About our remedial sealant in Rowlands Castle
Some sealant jobs are not a simple reseal, because someone has already had a go. New sealant over old, smeared beads, unsuitable products and hidden mould all have to come out before the joint can be done properly. We work on failed movement joints, shrunken worktop sealant and expansion joints, and people most often call us about sealant applied over old sealant that has lifted and beads that never stuck properly.
Even in a smaller place like Rowlands Castle, bathrooms and kitchens see heavy daily use. Older or newer, every room gets the same approach: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
Big or small, you get the same one-year guarantee in Rowlands Castle and across Hampshire.
- Location
- Rowlands Castle (PO9)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Rowlands Castle
Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes split any bead that is too stiff or too thin.
Signs it’s time to call us include:
- Kitchen joints letting water behind the worktop
- Dark patches showing through the sealant
- Sealant applied over old sealant that has lifted
- Products that weren’t meant for the joint
If you look after a building such as Havant Academy, we reseal washrooms and kitchens in schools and businesses as well as homes.
Before booking anyone
- What product goes in the joint
- When the joint can take water or movement
- Whether they’re fully insured
- Who turns up on the day
Rowlands Castle questions
Can you do remedial sealant in Rowlands Castle?
Yes. Our work covers London and the South East, and Rowlands Castle is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
I let a flat near Rowlands Castle station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Can you take off two layers of silicone?
Yes. It’s slower than a standard reseal, because every layer has to come out cleanly, but it’s the only way the new joint will last.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, especially on acrylic, enamel and uPVC.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you offer different sealant colours?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Towns and villages near Rowlands Castle
What else we do in Rowlands Castle
Quotes for remedial sealant in Rowlands Castle
You will get a clear quote before any work starts. It’s based on:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- The size of the job
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Photos by email, if that’s easy
- The type of property
- Any access issues, like height or stairs
- Where the job is, and your postcode
Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details and send pictures if you have them.
When something else is needed
A few problems are outside what sealant work can do:
- Movement from fittings that are not supported
- Sealant in an older building that needs testing for asbestos first
- Water damage behind tiles that needs a tiler
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Expansion joints
- Failed movement joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
Why act early in Rowlands Castle
DIY removal often leaves scratches and a film of residue, and any film left behind stops new sealant sticking. Careful removal is most of a remedial job. Homes in smaller places like Rowlands Castle can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Rowlands Castle
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
Take a look at our cost guide or customer reviews.
What remedial sealant looks like in Rowlands Castle
Rowlands Castle is close to the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, which wears sealant and grout out faster than in a quiet home. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
Homes close to The Church on the Green include some older properties, and walls and floors in older homes can move, and sealant and grout show it first. Letting a property close to Rowlands Castle station? Then botched sealant from a previous quick fix is easier to strip out between tenants.
Rowlands Castle is about 2 miles north-east of Havant, in Hampshire. We carry out remedial sealant for homes and businesses in Rowlands Castle. Rowlands Castle is one of 683 places in Hampshire where we work. We also work in Portsmouth, around 7 miles away.
Work in PO9 is quoted and booked the same way as anywhere else. If you need remedial sealant at a property on Stansted Close, College Close and Redhill Road or anywhere close by, our applicators can take on the job. We also cover Durrants (1 mile south), Leigh Park (2 miles south-west), Havant (2 miles south-west), Denvilles (2 miles south) and Westbourne (2 miles south-east). We also work in nearby towns such as Gosport (10 miles south-west), Fareham (10 miles west), Hedge End (15 miles west), Waterlooville (3 miles west), Petersfield (8 miles north) and Purbrook (3 miles south-west).
Local landmarks in Rowlands Castle
Locally, jobs take us to homes and businesses close to Robin Hood Inn. Rowlands Castle has its own railway station: Rowlands Castle station. Well-known places in the area include Havant War Memorial Hospital (2.6 miles south-west) and Havant Museum (2.7 miles south). For a walk, there’s Compton Down and Brook Meadow (Emsworth).
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for a typical bath or shower, longer where several layers have been applied. A visit to Rowlands Castle is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Get a quote
If you are in Rowlands Castle and need remedial sealant, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Read more
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Surface by surface
Mouldy bath & shower sealant
Mould that has grown into silicone does not clean out for good. The sealant is cut out completely, the joint treated with a mould remover and dried ahead of a new anti-fungal bead.
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, in a colour that suits the frame.