Medway · England
Dunn Street Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right in Dunn Street, with a one-year guarantee on every job. Ask us for a quote.
- Sealant applied over old sealant that has lifted
- Repeat leaks from the same joint
- Thick, messy sealant smeared over tiles
How we handle remedial sealant in Dunn Street
The wrong product in the wrong joint won’t last, however tidy it looks. We take it out and use a sealant made for that joint. We work on mouldy bath & shower sealant, botched or over-sealed joints and shrunken worktop sealant, and common reasons people get in touch are products that weren’t meant for the joint and gaps opening along the back of the worktop.
Homes around Dunn Street are mostly houses and cottages rather than flats. The work is the same as anywhere: old material cut out, joints cleaned and a fresh finish laid.
We stand behind the work with a one-year guarantee.
- Where
- Dunn Street (ME7)
- Region
- Medway
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Remedial sealant around Dunn Street
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.
If you let a flat or house near Rainham (Kent) station, botched sealant from a previous quick fix is easier to strip out between tenants. Managing a site like Swingate Primary School? Then 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.
Dunn Street is about 3 miles south-east of Chatham, in Medway. Anywhere in ME7, our applicators can take on remedial sealant. Dunn Street is one of 68 towns and villages in Medway we cover. You can also see our page for Chelmsford, roughly 29 miles from Dunn Street.
We cover every part of ME7 for remedial sealant and the streets around it. Other places close to Dunn Street include Lidsing (1 mile north-west), Bredhurst (1 mile north-east), Scragged Oak (1 mile south-east), Kemsley Street (1 mile north-east) and Lower Cox Street (1 mile south-east). Further out, we also cover Gillingham (3 miles north), Chatham (3 miles north-west), Rochester (5 miles north-west), Rainham (3 miles north-east), Strood (6 miles north-west) and Luton (3 miles north-west).
Near you in Dunn Street
We work in homes and buildings around South Wood and The Harrow pub and the streets around them. The closest station to Dunn Street is Rainham (Kent) station, about 3.3 miles north-east of the centre. Nearby you’ll also find KIMS hospital (2.8 miles south) and Allington Castle (3.4 miles south-west). Open spaces near Dunn Street include Boxley Hills and Burham Down.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Use a soft cloth, not a scourer, on silicone
- Do not wait for a small gap to become a leak
- Always have old sealant cut out, not covered
- Ask why a joint failed before redoing it
Keep an eye on the joint at first, particularly where the original failure was caused by movement. If anything changes, just phone 0345 464 0079 or send us an email.
Mould trapped under over-sealed joints spreads unseen. By the time it shows through, the joint is well past saving.
Nearby places to Dunn Street
More services for Dunn Street
What the job involves on each surface
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We will tell you what we find.
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, matched to the frame colour.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Landlords, agents and businesses in Dunn Street
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Why act early in Dunn Street
Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it. Older cottages and farmhouses around Dunn Street can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why us?
- Colour agreed with you before work begins
- Neat joints and a tidy finish
- Colour picked to suit the job
- ARBOMaster approved applicator
Read how sealant jobs are priced and customer reviews.
How the visit works
We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take a few hours for a typical bath or shower, longer where several layers have been applied, and we tell you how long to leave it before we go. Somewhere like Dunn Street needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Before we arrive
- Clear items away from the joints we’re working on
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Get a quote
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Advice
Questions from Dunn Street
Can you help a landlord with a rental near Rainham (Kent) station?
Yes. We work for landlords and agents as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Is Dunn Street in your area for remedial sealant?
Yes. Our work covers London and the South East, and Dunn Street is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Someone sealed over the old bead. Can you fix it?
Yes. Both layers come out; new silicone doesn’t bond to old silicone, which is why over-sealing fails.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Do you guarantee remedial jobs?
Yes. Our one-year guarantee covers the work, and we’re ARBOMaster approved.
Can you remove old sealant without damaging the bath?
Yes, with care. We cut and lift the old sealant with tools suited to the surface, then clean off the residue. We point out any damage that’s already there.
Common problems we fix in Dunn Street
Movement tears sealant that is not designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
People normally contact us after spotting one of these:
- Torn expansion joints
- Mould trapped under a layer of silicone
- A shower that leaks however often it’s resealed
- Products that weren’t meant for the joint
If you live in an older home near Church of St Peter, older homes can move a little, which is hard on rigid grout and tired sealant.
Comparing quotes
- Whether they seal over old material or remove it
- Whether you can choose the colour
- How hidden problems are handled
- Are they insured?