Hampshire · England
Remedial Sealant in Nashes Green
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Nashes Green and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant that came away because the surface wasn’t prepared
- Gaps opening along the back of the worktop
- Thick, messy sealant smeared over tiles
Why deal with it now?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it, so the joint can be treated and resealed. Around Nashes Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Why choose Mr Mastic in Nashes Green
- Domestic, commercial and hotel work
- We’re fully insured
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
See our cost guide and customer reviews.
Remedial sealant in Nashes Green
Remedial work is what we do when sealant has failed or been done badly. New sealant over old, smeared beads, unsuitable products and hidden mould all need stripping out before the joint can be done properly. If you have smears and lumps from a botched reseal and a second bead peeling off the first, we can help.
Being in a small place like Nashes Green makes no difference to the job itself: the journey and access are simply agreed in advance. Once we are there, the bathroom or kitchen gets the same care as anywhere else.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.

- Place
- Nashes Green (RG25)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Run the fan after every shower
- Get the cause of a repeat leak found before resealing
- Clean sealant with mild products only
- Don’t add new sealant on top of old
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 send us an email.
A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into floors, walls or ceilings. Early action keeps it to a sealant job.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Remedial sealant in Nashes Green: local notes
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.
For landlords with property near Alton station, a joint that keeps failing is best fixed properly while the property is empty.
Nashes Green is about 5 miles north-west of Alton, in Hampshire. Anywhere in RG25, we cover remedial sealant for homes and businesses. Our Hampshire coverage runs to 683 places, and Nashes Green is one of them. We also work in Reading, about 17 miles from Nashes Green.
Work in RG25 works the same way as everywhere else we cover. Other places close to Nashes Green include Ellisfield (2 miles west), Upton Grey (2 miles north-east), Upper Common (3 miles west), Cliddesden (3 miles north-west) and Viables (4 miles north-west). Further out, we also cover Basingstoke (5 miles north-west), Farnborough (13 miles north-east), Fleet (10 miles north-east), Aldershot (12 miles east), Alton (5 miles south-east) and Petersfield (14 miles south).
Local landmarks in Nashes Green
Nashes Green’s nearest station is Alton station, roughly 4.7 miles south-east of the centre. Well-known places in the area include Gliding Heritage Centre (1.4 miles south-east) and Basing House (4.6 miles north). For a walk, there’s Holybourne Hill.
Nashes Green: your questions answered
Can you do remedial sealant in Nashes Green?
Yes, Nashes Green is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
I let a flat near Alton station. Can you help?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you have insurance?
Yes. We are fully insured for every job we do.
What if resealing won’t fix my leak?
Then we explain what we have found. A plumber or fitter may be needed.
Can you reseal a split movement joint?
Yes. Failed movement joints are cut out and resealed with backing and a flexible sealant suited to the movement.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Landlord and commercial work in Nashes Green
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.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Nearby places to Nashes Green
Also in Nashes Green
Do you need remedial sealant in Nashes Green?
Silicone only bonds to surfaces that are clean and dry. Soap film, dust, damp or old residue stop it gripping, so it starts lifting sooner than it should.
The problems people generally mention when they call are:
- Worktop sealant that has shrunk and split
- Sealant that came away because the surface wasn’t prepared
- Wide, uneven beads that look worse than the old ones
- Sealant applied over old sealant that has lifted
In the older streets around Church of St. Mary, older homes can move a little, which is hard on rigid grout and tired sealant.
Before booking anyone
- When the joint can take water or movement
- Whether the sealant suits the joint
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
What happens on the day
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for most joints, depending on how much old sealant has to come out. In a small place like Nashes Green, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking the joint for movement, leaks and the reason it failed.
- We strip the joint completely, removing any layers below.
- We clean the joint, treat any mould and let it dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- The new joint is tooled neatly and we explain anything else we found.
Getting ready for the visit
- Tell us about any water getting in
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Advice
Quotes for remedial sealant in Nashes Green
Every job gets its own quote. This is what makes a difference:
- Any mould that needs treating
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Where the property is
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- Whether it’s a home or a business
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
