Kent · England
Remedial Sealant in Sandwich
Remedial sealant in Sandwich from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- A second bead peeling off the first
- Leaks that keep coming back after resealing
- Torn expansion joints
Remedial sealant in Sandwich, done properly
Not every leak is a sealant leak. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. If that is what we find, we’ll tell you rather than reseal something that won’t fix it. If you’re dealing with torn expansion joints and sealant peeling off a dusty or damp surface, we can put it right, on leaking tray & enclosure joints, failed movement joints and expansion joints alike.
In and around Sandwich, older properties sit alongside newer ones. In older homes, walls and floors can move a little more, so the right flexible sealant matters.
Our work is backed for twelve months.
- Where
- Sandwich (CT13)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Water damage behind tiles that needs a tiler
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Botched or over-sealed joints
- Expansion joints
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Failed movement joints
- Mouldy bath & shower sealant
Surface by surface
Leaking trays & enclosures
When failed joints are the cause, they’re all cut out and renewed, including the screen profile and tray edges.
Movement & expansion joints
A sealant stuck to the back of the joint cannot stretch. Backing rod or bond-breaker tape prevents it, so the sealant grips the two sides only.
Sandwich questions
Is Sandwich within the area you cover?
Yes, Sandwich is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Sandwich station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
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.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
How long does remedial resealing take?
That depends on how many layers there are and how many joints. We will tell you before we start.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or drop us an email.
What if resealing will not fix my leak?
You’ll hear it from us. A cracked tray, faulty valve or leaking waste needs a different trade, so we will not pretend it will.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
DIY sealant or a professional job?
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.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What affects the quote in Sandwich
You will get a clear quote before any work starts. It’s based on:
- The product the joint needs
- The amount of work
- Whether the work is at height
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and send you a clear quote before work begins.
What we need to know
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or email us.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Keep the room well ventilated
- Get the cause of a repeat leak found before resealing
- Always have old sealant cut out, not covered
- Use a soft cloth, not a scourer, on silicone
Leave the new joint to cure fully before it gets wet or moves: generally around 24 hours, or as long as we advise.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
Landlords, agents and businesses in Sandwich
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Towns and villages near Sandwich
Other services in Sandwich
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for most joints, depending on how much old sealant has to come out from start to finish. A visit to Sandwich is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we find out how and where the joint has failed.
- Every layer of old sealant is cut and cleaned out.
- Next, any mould is treated and the joint dried.
- We use the right backing and sealant for any joint that moves.
- We tool the joint and tell you about anything else that needs attention.
How to prepare
- Clear items away from the joints we’re working on
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
Getting a quote
Want a quote for remedial sealant? Please ring 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Related advice
Remedial sealant in Sandwich: local notes
Sandwich is within about 3 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 Sandwich. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
Letting a property close to Sandwich station? Then a joint that keeps failing is best fixed properly while the property is empty. For an older house near a landmark such as Sandwich United Reformed Church, walls and floors in older homes can move, and sealant and grout show it first. For site and facilities teams at buildings such as Sandwich Infant School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Sandwich is about 5 miles north-west of Deal, in Kent. From the centre of Sandwich to the outskirts, remedial sealant is available for homes and businesses alike. 922 places in Kent are on our list, from the larger towns to small villages. You can also see our page for Chelmsford, about 49 miles away.
Jobs for remedial sealant in CT13 is quoted and booked the same way as anywhere else. That includes homes and businesses on Cattle Market, Market Street and High Street and the roads around them. Neighbouring places we cover for remedial sealant include Great Stonar (1 mile north), Felderland (1 mile south), Worth (1 mile south), Woodnesborough (1 mile south-west) and Statenborough (1 mile south-west). Larger places within reach include Canterbury (11 miles west), Margate (8 miles north), Dover (10 miles south), Folkestone (15 miles south-west), Ramsgate (5 miles north-east) and Broadstairs (7 miles north-east).
Around Sandwich
Typical jobs here are in homes near Ham Fen, Sir Roger Manwood's School and The Red Cow Public House. There’s a railway station in Sandwich itself: Sandwich station. A little further out are The Precinct Toy Collection (within half a mile north) and Ramsgate General Hospital (5 miles north-east). Not far away are Monk's Wall nature reserve.