Medway · England
Upper Upnor Remedial Sealant
Failed sealant joints in Upper Upnor need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Gaps opening along the back of the worktop
- Over-sealed joints coming away
- Leaks that keep coming back after resealing
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Look for stains below bathrooms now and then
- Keep bleach and abrasives off the bead
- Deal with small splits early
- Don’t point over movement joints
Keep the room ventilated: run the fan during and after showers, or open a window.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into whatever is behind or below. Sorting it early limits the damage.
Remedial sealant in Upper Upnor
The wrong product in the wrong joint fails however neatly it’s applied. Out it comes, and in goes a sealant suited to the job. We are often asked to deal with sealant that came away because the surface wasn’t prepared and repeat leaks from the same joint, across shrunken worktop sealant, botched or over-sealed joints and failed movement joints.
For a small place like Upper Upnor, remedial sealant is planned like any other job: it just means planning the journey and access beforehand. In the bathroom or kitchen, the work is the same as in any town.
Whatever the size of the job, it’s backed by our 12-month guarantee in Upper Upnor and across Medway.
- Where
- Upper Upnor (ME2)
- Region
- Medway
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. It’s cut out, degreased and resealed in a colour to suit.
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, tray edges and screen profiles included.
Also near Upper Upnor
What else we do in Upper Upnor
Why deal with it now?
Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. By comparison, sorting the joint is quick. Around Upper Upnor, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Over 20 years’ experience
- Homes, businesses and hotels
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at how sealant jobs are priced and what customers say.
When to call us in Upper Upnor
Sealant needs a clean, dry surface with no grease on it. Soap film, dust, damp or old residue stop it gripping, so it starts lifting sooner than it should.
The most common problems we see are:
- A second bead peeling off the first
- Gaps opening along the back of the worktop
- Caulk or the wrong sealant used in a wet area
- Torn expansion joints
Managing a site like Wainscott 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.
What to look for in a quote
- Who does the work, and how experienced they are
- How the colour is chosen
- What product goes in the joint
- How the joint is cleaned and prepared
What we do, step by step
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours for a typical bath or shower, longer where several layers have been applied, depending on the size of the job. For a village or hamlet like Upper 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 protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
To get a quote, phone 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 we start.
Advice
What affects the quote in Upper Upnor
Every job gets its own quote. These are the things that affect it:
- Whether the work is at height
- Any mould that needs treating
- When we can work, for business premises
- How many areas need sealing
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Where the job is, and your postcode
- Any access issues, like height or stairs
- A few pictures by email, if you can
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Remedial sealant in Upper Upnor: local notes
Upper 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, which wears sealant and grout out faster than in a quiet home. There are hotels and other places to stay in and around Upper Upnor. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
In the older streets around St Philip & St James, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Rented homes near Strood station change hands often, and botched sealant from a previous quick fix is easier to strip out between tenants.
Upper Upnor is about 2 miles north-east of Rochester, in Medway. Jobs in Upper Upnor get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our Medway coverage runs to 68 places, Upper Upnor among them. For nearby work, see our Chelmsford page.
Our applicators cover all of ME2 for remedial sealant and the streets around it. If you need remedial sealant at a property on High Street, Upnor Road and Castle Street or a nearby road, our applicators can take on the job. Other places close to Upper Upnor include Lower Upnor (1 mile north-east), Wainscott (1 mile north-west), Chattenden (1 mile north), Hoo St Werburgh (2 miles north-east) and Cooling Street (3 miles north). Further out, we also cover Gillingham (3 miles south-east), Chatham (3 miles south), Rainham (5 miles south-east), Luton (3 miles south), Park Wood (5 miles south-east) and Lordswood (5 miles south).
What’s near Upper Upnor
Locally, jobs take us to homes and businesses close to The Kings Arms, Lower Lines Park and Waterfront University Technical College. You’ll also find Former Ordnance Store At Chatham Gun Wharf (1.4 miles south) and Waterfront UTC (1.3 miles south-east). Upper Upnor’s nearest station is Strood station, roughly 1.2 miles south-west. A little further out are French Hospital (1.5 miles south-west) and Pentagon Shopping Centre (1.6 miles south). Green spaces nearby include Gad's Hill and Rede Common.
Questions from Upper Upnor
Will you come out to Upper Upnor?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Strood station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
What if the leak isn’t the sealant?
That is why we look for the cause first. If the fault is elsewhere, you will know before any work is done.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Can you remove sealant that is been put over old sealant?
Yes. Each layer is cut out and the residue cleaned off, before resealing with a single bead.
How much does remedial sealant cost in Upper Upnor?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Honest limits
Before booking, it’s worth knowing the limits:
- Cracks in the fitting rather than the joint
- Failed tanking or loose tiles behind the sealant
- Sealant in an older building that needs testing for asbestos first
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Failed movement joints
- Leaking tray & enclosure joints
- Expansion joints
- Botched or over-sealed joints