Medway · England
Bathroom Resealing in Lower Upnor
Professional bathroom resealing in and around Lower Upnor, with old sealant always removed completely and a one-year guarantee.
- Black spots spreading through the bead
- Leaks into the floor or ceiling below
- Failed sealant on the screen profile
Why act early in Lower Upnor
Mould removers can fade the surface of a stained bead, but mould that has grown into the sealant tends to return. Cutting it out and resealing with anti-fungal silicone is the fix that lasts. In a small place like Lower Upnor, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and send you a clear quote before we start.
Why choose Mr Mastic in Lower Upnor
- ARBOMaster approved applicator
- Sealant colour chosen to suit
- One-year guarantee on every job
- You choose the colour before work begins
See our cost guide or our reviews.
Bathroom resealing for homes and businesses in Lower Upnor
Sealant that’s mouldy, cracked or peeling shouldn’t be left until there’s a leak. A photo of the joints helps when you call 0345 464 0079 or send us an email, and you will get a clear quote for bathroom resealing in Lower Upnor. We’re often asked to deal with shrunken sealant along the back of a worktop and gaps where the bath or tray has moved, on sinks & splashbacks, basins & vanity units and wet rooms.
Homes around Lower Upnor are mostly houses and cottages rather than flats, some with bathrooms tucked into older rooms or extensions. The work is the same as anywhere: old material cut out, joints cleaned and a fresh finish laid.
Our work is backed for twelve months, in Lower Upnor and everywhere else we cover.

- Where
- Lower Upnor (ME2)
- Region
- Medway
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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 doesn’t work out, we can still put it right.
Honest limits
Before you book, it’s worth knowing the limits:
- Loose or hollow tiles, or failed tanking behind them
- Cracks in the tray itself rather than the joint
- A bath or tray that moves because it isn’t properly supported
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Kitchen worktops & upstands
- Shower trays & enclosures
- Baths
- Basins & vanity units
- Sinks & splashbacks
- Wet rooms
Questions from Lower Upnor
Is Lower Upnor in your area for bathroom resealing?
Yes. We work across London and the South East, and Lower Upnor is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Strood station?
Yes, we work for letting agents and landlords. 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 any work starts.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
What does bathroom resealing cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Is it OK to put new sealant on top of the old bead?
No. New silicone won’t bond to old silicone, so it lifts and traps water and mould underneath. We always take the old sealant out completely.
My sealant has gone black. Can you sort it?
Yes. Mould inside the bead rarely cleans out for good, so we cut it out, treat the joint and reseal with anti-fungal silicone.
What affects the cost of bathroom resealing
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- Working hours on commercial sites
- The product the joint needs
- The number of rooms or windows
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Towns and villages near Lower Upnor
Other services in Lower Upnor
Bathroom resealing around Lower Upnor
Lower Upnor is within about 2 miles of the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, and sealant and grout that work that hard wear out sooner. Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
Rented homes near Strood station change hands often, and mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets. If you look after a building such as Chattenden Primary School, 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.
Lower Upnor is about 2 miles north-east of Rochester, in Medway. Jobs in Lower Upnor get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Medway, we cover 68 places, and Lower Upnor is one of them. We also work in Chelmsford, about 23 miles from Lower Upnor.
Jobs for bathroom resealing in ME2 is quoted and booked the same way as anywhere else. If you need bathroom resealing at a property on Galleon Way, Cutter Close and Schooner Walk or anywhere close by, we can help. Nearby, we also carry out bathroom resealing in Upper Upnor (1 mile south-west), Chattenden (1 mile north), Wainscott (1 mile west), Hoo St Werburgh (2 miles north-east) and Cooling Street (2 miles north). We also work in nearby towns such as Gillingham (3 miles south-east), Chatham (4 miles south), Rainham (5 miles south-east), Strood (3 miles south-west), Luton (3 miles south) and Park Wood (5 miles south-east).
Landmarks near Lower Upnor
Typical jobs here are in homes near Former Ordnance Store At Chatham Gun Wharf, The Hundred of Hoo Academy and Waterfront University Technical College, among other places. Other local landmarks include Lower Lines Park (1.3 miles south-east) and The Ship pub (less than half a mile east). For rail, the closest station is Strood station, about 1.6 miles south-west. Other landmarks nearby include Upnor Castle (under half a mile south) and Pentagon Shopping Centre (1.9 miles south). Not far away are Rede Common and Gad's Hill.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Avoid abrasive pads on the sealant
- Wipe up water along the back of the worktop
- Stick to a soft cloth and a mild cleaner
- Open a window or run the fan so the room dries
Mould needs damp, so keep the room aired. Run the extractor fan during and after a shower, so the silicone gets a chance to dry.
Don’t wait for a refit to deal with failed sealant. Like paintwork, sealant needs renewing from time to time, and renewing it as soon as it fails protects everything around it.
How it works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take a couple of hours for a single bath or shower. For a village or hamlet like Lower Upnor, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by protecting the area and stripping out the old bead.
- The joint is cleaned, degreased and treated for mould.
- Once it’s dry, any bath is filled so the bead is laid with it at its heaviest.
- We apply anti-fungal sanitary silicone in one even bead and tool it neatly.
- We tidy up and give you the cure time, usually around 24 hours.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
What we’re called out for in Lower Upnor
Not every tube in the shop is meant for a shower. Acrylic caulk and general-purpose sealants are not designed for a joint that is wet every day, so they crack, discolour or grow mould quickly. A bathroom joint needs anti-fungal sanitary silicone.
Look out for these signs:
- Leaking joints on a shower screen
- A messy, uneven bead from a previous reseal
- Sealant that has split, shrunk or peeled away
- Water getting behind the bath panel
For an older house near a landmark such as St Philip & St James, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
What your quote should include
- What happens if they find a problem under the old sealant
- The length of the guarantee
- What the cure time is
- Whether the sealant suits the joint
