Hampshire · England
Remedial sealant & repairs in South Wonston, Hampshire
Remedial sealant in South Wonston from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Smears and lumps from a botched reseal
- Sealant applied over old sealant that has lifted
- A shower that leaks however often it’s resealed
Bathrooms and kitchens in South Wonston
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.
For landlords with property near Winchester station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. If you look after a building such as South Wonston Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
South Wonston is about 4 miles north of Winchester, in Hampshire. For remedial sealant in and around South Wonston, please phone 0345 464 0079 or send us an email for a quick quote. We cover Hampshire from our Crawley base. Across Hampshire, we cover 683 places, South Wonston among them. We also work in Southampton, around 14 miles away.
All of SO21 is within our area for remedial sealant, from the main roads to the quietest streets. Remedial sealant is available to properties on Norris Gardens, Wrights Way and Lovell Close. We also cover Worthy Down (1 mile south), Springvale (2 miles south-east), Sutton Scotney (2 miles north), Stoke Charity (2 miles north-east) and Hunton (3 miles north). Larger places within reach include Basingstoke (14 miles north-east), Winchester (4 miles south), Eastleigh (11 miles south), Andover (9 miles north-west), Chandler's Ford (10 miles south) and Alton (15 miles east).
Landmarks near South Wonston
For rail, the closest station is Winchester station, roughly 3.7 miles south. Other landmarks nearby include Royal Hampshire County Hospital (4 miles south) and Winchester Castle (4.1 miles south). Green spaces nearby include Winnall Moors.
About our remedial sealant in South Wonston
A movement joint stops working when its sealant splits or sets hard. The old sealant comes out and backing goes in to control the depth, before resealing with a flexible product suited to the movement. If you have leaks that keep coming back after resealing and movement joints that have split or pulled away, we can put it right, on mouldy bath & shower sealant, botched or over-sealed joints and failed movement joints alike.
Around South Wonston, it’s houses and cottages rather than flats. Sealant and grout wear out here just as they do anywhere: everything old comes out before the new sealant or grout goes in.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Place
- South Wonston (SO21)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
When to call us in South Wonston
Products get mixed up: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. Each fails in its own way.
The problems people usually mention when they call include:
- Over-sealed joints coming away
- Worktop sealant that has shrunk and split
- Smears and lumps from a botched reseal
- Beads that never stuck properly
In the older streets around St Margaret's, older homes can move a little, which is hard on rigid grout and tired sealant.
Comparing quotes
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
- How the colour is chosen
- How much experience the applicator has
How to look after the new joints
A little care helps the new joints last. Our advice:
- Clean sealant with mild products only
- Report a tray that rocks or a worktop that lifts
- Do not point over movement joints
- Get the cause of a repeat leak found before resealing
Watch the joint over the first few weeks, particularly where the original failure was caused by movement. If anything changes, just ring 0345 464 0079 or email us.
Movement joints that have split let water into the structure, and the longer it’s left, the more the joint edges break down. A joint with sound edges is far easier to reseal.
South Wonston questions
Will you come out to South Wonston?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Winchester station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Where are you based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How long will it take to strip and reseal the joint?
It takes a few hours for a typical bath or shower, longer where several layers have been applied. We’ll give you a timescale when we quote.
Can you reseal a split movement joint?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, and reseal with a flexible product.
What happens if it’s left?
Another bead over the top will not fix a failed joint. It cannot bond to what’s underneath, leaving the leak in place and one more layer to cut out later. Where a wall is exposed, as many are in small places like South Wonston, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why South Wonston clients choose us
- Fully insured
- White, clear, grey or another colour, product permitting
- Trusted Arbo and Everbuild sealants
- An ARBOMaster approved applicator
The process
We bring everything the job needs with us. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like South Wonston, 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.
- 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.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.
Read more
Landlords, agents and businesses in South Wonston
If you manage several properties in or around South Wonston, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Nearby places to South Wonston
What else we do in South Wonston
What the job involves on each surface
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so cleaning takes longer than in a bathroom before resealing.
Mouldy bath & shower sealant
Black mould inside the bead won’t scrub out. The sealant is cut out completely, the joint treated with a mould remover and dried before anti-fungal sanitary silicone goes in.