Hampshire · England
Dummer Remedial Sealant
Professional remedial sealant in and around Dummer, with every bit of old sealant taken out first and a 12-month guarantee.
- Smears and lumps from a botched reseal
- Products that weren’t meant for the joint
- Sealant peeling off a dusty or damp surface
About our remedial sealant in Dummer
Remedial work is what we do when sealant has failed or been done badly. Silicone laid over silicone, smears across tiles, the wrong product in a moving joint or mould trapped underneath all have to come out before the joint can be done properly. We work on botched or over-sealed joints, failed movement joints and expansion joints, and common reasons people get in touch are wide, uneven beads that look worse than the old ones and beads that never stuck properly.
Somewhere as small as Dummer, homes tend to be cottages, farmhouses or converted buildings, with some newer houses too. Movement in older walls and floors tends to show first as cracked grout or split sealant.
You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or drop us an email.
- Place
- Dummer (RG25)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What happens if it’s left?
Remedial work takes longer than a straight reseal, but rarely a lot: the work takes a few hours for most joints, depending on how much old sealant has to come out. Compared with chasing the same leak every few months, it’s time well spent. Older cottages and farmhouses around Dummer can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
Why choose Mr Mastic in Dummer
- ARBOMaster approved applicator
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Full insurance on every job
Dummer questions
I let a flat near Micheldever station. Can you help?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Can you do remedial sealant in Dummer?
Yes. We work across London and the South East, and Dummer is part of that. You can call 0345 464 0079 or email us and let us know what needs doing.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Can you quote for more than one area?
Yes. Just list everything you need.
What if resealing will not fix my leak?
In that case, we tell you what we have found. A plumber or fitter may be needed.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or drop us an email.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you.
Signs you need remedial sealant in Dummer
Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
Any of these means the joints need attention:
- Floor or wall movement joints that have failed
- Products that weren’t meant for the joint
- Mould trapped under a layer of silicone
- A second bead peeling off the first
For landlords with property near Micheldever station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Before booking anyone
- Whether you can choose the colour
- How hidden problems are handled
- Whether they’re fully insured
- How much experience the applicator has
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Get the cause of a repeat leak found before resealing
- Check trays and worktops don’t move
- Keep the room well ventilated
- Keep an eye on the ceiling below the bathroom
If the joint ever needs renewing, have it cut out, not sealed over. New silicone does not bond to old, so the old bead should always come out first.
If a joint has failed more than once, stop resealing it. Get the cause found first, or the next bead will go the same way.
Remedial sealant in Dummer: local notes
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 an older house near a landmark such as Church of All Saints, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Dummer is about 4 miles south-west of Basingstoke, in Hampshire. Every kind of property in Dummer can book us for remedial sealant, old or new, large or small. The work is guaranteed for a year. Our area takes in 683 places across Hampshire. We also work in Reading, about 18 miles from Dummer.
All of RG25 is within our area for remedial sealant, from the main roads to the quietest streets. We cover properties on Down Street, Post Office Lane and Porters Close. We also cover North Waltham (2 miles west), Farleigh Wallop (2 miles east), Kempshott (2 miles north), Hatch Warren (2 miles north-east) and Oakley (3 miles north). Further out, we also cover Basingstoke (4 miles north-east), Winchester (13 miles south-west), Fleet (15 miles east), Andover (14 miles west), Alton (9 miles south-east) and Tadley (10 miles north).
Around Dummer
Locally, jobs take us to homes and businesses close to The Queen Inn. The closest station to Dummer is Micheldever station, about 4.8 miles south-west. A little further out are Park Prewett Hospital (5 miles north). For a walk, there’s Farleigh Hill.
What affects the cost of remedial sealant
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- Any working-time requirements on site
- Access and height
- Any mould that needs treating
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The type of property
- Where the job is, and your postcode
- The problem you’ve noticed
- Roughly how big the job is
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
What happens on the day
Good joint work is mostly preparation, so that’s 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 a typical bath or shower, longer where several layers have been applied. For a village or hamlet like Dummer, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Surrounding tiles, trays and frames are protected first.
- 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.
- You get the cure time and our view on why the joint failed.
Getting ready for the visit
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
Getting a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.
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More services for Dummer
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Plumbing leaks behind walls or under trays
- Water damage behind tiles that needs a tiler
- A tray or worktop that needs refixing first
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Dummer
- Leaking tray & enclosure joints
- Expansion joints
- Shrunken worktop sealant
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Failed movement joints