Hampshire · England
Remedial sealant & repairs in Worthy Down, Hampshire
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Worthy Down and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Worktop sealant that has shrunk and split
- Dark patches showing through the sealant
- Over-sealed joints coming away
About our remedial sealant in Worthy Down
Decorators’ caulk in a shower, bathroom silicone on a window, a rigid filler in a movement joint fails however neatly it’s applied. Out it comes, and in goes a sealant suited to the job. We work on expansion joints, botched or over-sealed joints and leaking tray & enclosure joints, and people most often call us about sealant peeling off a dusty or damp surface and floor or wall movement joints that have failed.
Being in a small place like Worthy Down 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.
Our work is backed for twelve months.
- Where
- Worthy Down (SO21)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Why it’s worth doing now in Worthy Down
Ripping out a bathroom isn’t generally needed. When the fittings are sound, stripping and resealing the joints is often enough. Where something else has failed, you will hear it from us. Around Worthy Down, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Worthy Down
- Tidy, careful work
- Quality sealants from Arbo and Everbuild
- White, clear, grey or another colour, product permitting
- One-year guarantee on every job
Take a look at what affects the cost and our reviews.
How the job changes by surface
Over-sealed & botched joints
Every layer has to come out, and silicone residue is cleaned off the tiles too. New sealant needs a fully clean surface.
Worktops & kitchens
Kitchen joints hold grease and residue, so cleaning takes longer than in a bathroom before resealing.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Clean sealant with mild products only
- Have loose fittings fixed before resealing
- Find out why the sealant failed first
- Air the bathroom so the sealant can dry
Keep the room ventilated: run the fan during and after showers, or open a window.
If a joint has failed more than once, stop resealing it. Have someone find out why, otherwise the next attempt will fail too.
Landlords, agents and businesses in Worthy Down
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Honest limits
In fairness, there are a few things sealant won’t fix:
- Plumbing leaks behind walls or under trays
- A cracked shower tray or bath (that needs repair or replacing)
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Surfaces we seal
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Botched or over-sealed joints
Remedial sealant in Worthy Down: local notes
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you look after a building such as South Wonston Primary School, 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. For landlords with property near Winchester station, a joint that keeps failing is best fixed properly while the property is empty. In the older streets around St Margaret's, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Worthy Down is about 4 miles north of Winchester, in Hampshire. If you need remedial sealant in Worthy Down, please call 0345 464 0079 or send us an email for a quick quote. We cover Hampshire from our Crawley base, Worthy Down included. Across Hampshire, we cover 683 places, and Worthy Down is one of them. Our Southampton page covers work nearby.
Work in SO21 works the same way as everywhere else we cover. You’ll find streets such as Coopers Close, Coate Drive and Wellesley Drive, and we cover them all. Other places close to Worthy Down include South Wonston (1 mile north), Springvale (2 miles south-east), Crawley (3 miles west), Sutton Scotney (3 miles north) and Stoke Charity (3 miles north-east). Larger places within reach include Basingstoke (15 miles north-east), Winchester (4 miles south), Eastleigh (10 miles south), Andover (9 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south).
Near you in Worthy Down
Around Worthy Down, our work takes us to homes and buildings near Henry Beaufort School and the streets around them. For rail, the closest station is Winchester station, roughly 3.2 miles south of the centre. Well-known places in the area include Royal Hampshire County Hospital (3.5 miles south) and Royal Observer Corps Museum (2.7 miles south-east). The countryside around Worthy Down includes Winnall Moors.
DIY versus a professional finish
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 does not work out, we can still put it right.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours, depending on how many layers have to come out. In a small place like Worthy Down, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you’re told about anything else we found.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Try not to wet indoor joints just before the visit
Ask for a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
Read more
Towns and villages near Worthy Down
More services for Worthy Down
Worthy Down questions
Is Worthy Down in your area for remedial sealant?
Yes. We work across London and the South East, and Worthy Down is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Do you work for landlords with property near Winchester station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
What if the leak is not the sealant?
We check for that before we reseal. If the fault is elsewhere, you will know before any work is done.
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.
