Hampshire · England
Stonymarsh Remedial Sealant
Remedial sealant for Stonymarsh, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mould trapped under a layer of silicone
- Gaps opening along the back of the worktop
- A second bead peeling off the first
What happens if it’s left?
Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. By comparison, sorting the joint is quick. Around Stonymarsh, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
Why choose Mr Mastic in Stonymarsh
- Fully insured
- Homes, businesses and hotels
- Old sealant always removed completely
- 20+ years of sealant experience
Take a look at our cost guide and customer reviews.
Remedial sealant for homes and businesses in Stonymarsh
Getting old sealant out properly is slow, careful work. We cut out every layer, clear the residue and degrease the surfaces, without scratching tiles, trays or frames. Only then can new sealant bond. We work on leaking tray & enclosure joints, botched or over-sealed joints and mouldy bath & shower sealant, and the jobs we see most are beads that never stuck properly and sealant applied over old sealant that has lifted.
In a village or hamlet like Stonymarsh, 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.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Stonymarsh (SO51)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Stonymarsh
Will you come out to Stonymarsh?
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.
Can you help a landlord with a rental near Mottisfont & Dunbridge station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Is remedial work guaranteed?
Yes, for 12 months. If we have pointed out another problem, getting it fixed helps the new joint last.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What does remedial sealant cost?
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’ll talk you through it.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
What the job involves on each surface
Mouldy bath & shower sealant
Where mould keeps coming back, ventilation is normally part of the cause. We’ll reseal and tell you if extraction looks to be the issue.
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, in a colour that suits the frame.
Looking after it afterwards
So the new joints stay in good condition:
- Ask why a joint failed before redoing it
- Check ceilings under showers for marks
- Act on a lifting corner right away
- Never seal over old silicone
Do not let anyone seal over it later. Over-sealing is how many remedial jobs start, so the old bead should always come out first.
If a joint has failed more than once, stop resealing it. Have someone find out why, or the next bead will go the same way.
Bathrooms and kitchens in Stonymarsh
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.
Homes close to Church of St Andrew include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Letting a property close to Mottisfont & Dunbridge station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Stonymarsh is about 4 miles north-west of Romsey, in Hampshire. We provide remedial sealant to homes and businesses in Stonymarsh and the surrounding area. Stonymarsh is one of 683 places in Hampshire where we work. There’s also a page for Southampton, about 10 miles away.
Our applicators cover all of SO51 for remedial sealant and the streets around it. Close by, we work in Mottisfont (1 mile west), Michelmersh (1 mile south-east), Kimbridge (1 mile south-west), Dunbridge (1 mile south-west) and Timsbury (1 mile south-east). Within a short drive, we also cover Winchester (9 miles east), Eastleigh (9 miles south-east), Andover (12 miles north), Totton (8 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
What’s near Stonymarsh
We work in homes and buildings around The Bear And Ragged Staff Public House. The nearest railway station is Mottisfont & Dunbridge station, roughly 1.1 miles west of the centre. A little further out are Romsey Community Hospital (3.7 miles south-east) and King Johns House (3.5 miles south). The countryside around Stonymarsh includes Emer Bog and Baddesley Common.
Honest limits
We will not take on work that won’t last, so these are the limits:
- A tray or bath that’s cracked
- Tiles that have come away from the wall
- A bath, tray or worktop that moves until it’s properly fixed
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Expansion joints
Quotes for remedial sealant in Stonymarsh
You’ll get a clear quote before work begins. It takes into account:
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- When we can work, for business premises
- How many rooms, windows or areas are involved
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
When you call or email, these details help:
- A few photos by email, if you can
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- What’s wrong with the joints now
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and photos are welcome.
Also near Stonymarsh
Also in Stonymarsh
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours, depending on how many layers have to come out, and the area is left clean. Somewhere as small as Stonymarsh, access is often the only tricky part. 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.
- 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.
Before we arrive
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Advice
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.