Medway · England
Remedial Sealant in Walderslade
Our applicators work in Walderslade on removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Mould trapped under a layer of silicone
- Smears and lumps from a botched reseal
- Sealant applied over old sealant that has lifted
About our remedial sealant in Walderslade
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 dark patches showing through the sealant and wide, uneven beads that look worse than the old ones, on botched or over-sealed joints, mouldy bath & shower sealant and leaking tray & enclosure joints.
Homes around Walderslade range from older cottages to more recent houses. In older homes, walls and floors can move a little more, so the right flexible sealant matters.
Your job is guaranteed for a year, as with all our work.
- Place
- Walderslade (ME5)
- Region
- Medway
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Adding more sealant is the usual quick fix, and it rarely works. It can’t bond to what’s underneath, leaving the leak in place and one more layer to cut out later. Around Walderslade, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Why choose Mr Mastic in Walderslade
- Anti-fungal silicone where joints get wet
- We agree the colour with you first
- Colour picked to suit the job
- Old sealant always removed completely
Read our cost guide or what customers say.
Walderslade: your questions answered
Is Walderslade in your area for remedial sealant?
Yes, Walderslade is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
Can you help a landlord with a rental near Chatham station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is remedial work guaranteed?
Yes. Our one-year guarantee covers the work, and we’re ARBOMaster approved.
What should I tell you?
A short description and the location. If we need more, we will ask.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.
Do you offer different sealant colours?
Yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
How it works
Before we leave, we go over the finished joints with you. The visit itself usually takes a few hours for most joints, depending on how much old sealant has to come out, depending on the size of the job. For a job in Walderslade, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you’re told about anything else we found.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
Getting a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Related advice
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep bleach and abrasives off the bead
- Check ceilings under showers for marks
- Do not wait for a small gap to become a leak
- Ask why a joint failed before redoing it
Keep the room ventilated: run the fan during and after showers, or open a window.
Mould under a second layer of sealant keeps growing out of sight. When it finally shows, the whole bead needs to come out.
What affects the quote in Walderslade
We don’t publish a price list, because jobs vary so much. What we look at:
- Any working-time requirements on site
- How many areas need sealing
- How easy the joints are to reach
- The type of sealant required
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and send you a clear quote before work begins.
What we need to know
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- Whether it’s a home or a business
- Photos by email, if that is easy
- How many joints, rooms or windows are involved
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or send us an email.
Surface by surface
Worktops & kitchens
A loose worktop splits its sealant. It needs fixing down first, and we’ll tell you if we find it.
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. We remove it all and clean back to sound surfaces before backing and resealing.
Towns and villages near Walderslade
More services for Walderslade
When to call us in Walderslade
Silicone only bonds to surfaces that are clean and dry. Residue, moisture or dust left in the joint weaken the bond, so it starts lifting sooner than it should.
Common reasons people contact us include:
- Black mould underneath the bead
- Sealant peeling off a dusty or damp surface
- Caulk or the wrong sealant used in a wet area
- Smears and lumps from a botched reseal
If you let a flat or house near Chatham station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What your quote should include
- What guarantee comes with the work
- Whether you can choose the colour
- How much experience the applicator has
- What happens if the job turns out different
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Walderslade homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
In the older streets around St William's Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. For site and facilities teams at buildings such as Tunbury Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Walderslade is about 1 mile south of Chatham, in Medway. If you need remedial sealant in Walderslade, please phone 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Medway. Our Medway coverage runs to 68 places, and Walderslade is one of them. You can also see our page for Chelmsford, roughly 28 miles from Walderslade.
Here we cover the ME5 postcode area for remedial sealant. If you need remedial sealant at a property on Farm Road, York Avenue and Walsham Road or a nearby road, our applicators can take on the job. With the A2045 close by, Walderslade is easy for our applicators to reach for remedial sealant. We also cover Blue Bell Hill (1 mile west), Lordswood (1 mile east), Kit's Coty (1 mile south-west), Chatham (1 mile north) and Lidsing (2 miles east). We also work in nearby towns such as Gillingham (3 miles north-east), Rochester (4 miles north), Rainham (4 miles north-east), Strood (4 miles north-west), Park Wood (3 miles east) and Twydall (4 miles north-east).
Around Walderslade
Typical jobs here are in homes near Westfield Wood, Greenacre Academy and Walderslade Girls' School. The closest station to Walderslade is Chatham station, roughly 3.1 miles north. Well-known places in the area include Allington Castle (3 miles south) and Pentagon Shopping Centre (3.3 miles north). For a walk, there’s Blue Bell Hill and Burham Down.