Kent · England
Remedial sealant & repairs in Northfleet Green, Kent
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Northfleet Green. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Repeat leaks from the same joint
- Movement joints that have split or pulled away
- Beads that never stuck properly
Remedial sealant in Northfleet Green
Removing failed sealant is the hardest part of the job. We cut out every layer, clear the residue and degrease the surfaces, without scratching tiles, trays or frames. Only then can new sealant bond. We work on mouldy bath & shower sealant, expansion joints and shrunken worktop sealant, and common reasons people get in touch are gaps opening along the back of the worktop and caulk or the wrong sealant used in a wet area.
Being in a small place like Northfleet Green makes no difference to the job itself: it just means planning the journey and access beforehand. Once we’re there, the bathroom or kitchen gets the same care as anywhere else.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Northfleet Green (DA13, DA11)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep an eye on the ceiling below the bathroom
- Clean sealant with mild products only
- Keep the room well ventilated
- Do not wait for a small gap to become a leak
Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.
Leaks through failed sealant grow over time. Each use pushes more water behind the bead, into whatever is behind or below. Sorting it early limits the damage.
Northfleet Green: your questions answered
Do you work for landlords with property near Ebbsfleet International station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Northfleet Green?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you remove sealant that is been put over old sealant?
Yes. We remove every layer; new silicone doesn’t bond to old silicone, which is why over-sealing fails.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
How long does the work take?
Allow a few hours for most joints, depending on how much old sealant has to come out. You will know the timing when we quote.
Where is Mr Mastic based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Honest limits
We’ll always be straight with you, so here’s what new sealant won’t do:
- Plumbing leaks behind walls or under trays
- A cracked shower tray or bath (that needs repair or replacing)
- Older mastics that may need an asbestos check before removal
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.
What we seal
- Shrunken worktop sealant
- Expansion joints
- Leaking tray & enclosure joints
- Failed movement joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
What remedial sealant looks like in Northfleet Green
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.
Rented homes near Ebbsfleet International station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. If you live in an older home near Church of St Nicholas, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Schools such as Painters Ash Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes.
Northfleet Green is about 1 mile south of Northfleet, in Kent. Jobs in Northfleet Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Kent coverage runs to 922 places, Northfleet Green among them. London is on our list too, about 19 miles from Northfleet Green.
We cover every part of the DA13 and DA11 postcode area for remedial sealant. Streets in the area include Downs Road and New Barn Road, all of which we cover. We also cover the places around Northfleet Green: Southfleet (1 mile west), Painters Ash (1 mile north), Istead Rise (1 mile south-east), Hook Green (1 mile west) and Springhead (1 mile north). Within a short drive, we also cover Maidstone (13 miles south-east), Dartford (5 miles west), Sevenoaks (11 miles south-west), Tonbridge (15 miles south), Swanley (7 miles west) and Kings Hill (10 miles south).
Landmarks near Northfleet Green
We work in homes and buildings around Black Lion pub, Northfleet School for Girls and Saint George's Church of England School, among other places. For rail, the closest station is Ebbsfleet International station, roughly 2 miles north of the centre. Other landmarks nearby include Gravesham Museum (2.3 miles north-east) and Bluewater (3.3 miles north-west). For a walk, there’s Sawyers Lake.
Why act early in Northfleet Green
Mould under a bead can’t be reached by cleaning. Removal is the only way to get at it, and the joint treated and dried before resealing. In a small place like Northfleet Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Doing several joints on one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why us?
- Domestic, commercial and hotel work
- Over 20 years’ experience
- Tidy, careful work
- You choose the colour before work begins
See our cost guide or what customers say.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into 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.
Also near Northfleet Green
Also in Northfleet Green
For landlords and businesses
We also work for property managers and facilities teams. Several sites can be quoted together.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
How we quote for remedial sealant
We quote each job individually. This is what makes a difference:
- Working hours on commercial sites
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- How much there is to do
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
What to tell us for a quote
When you contact us, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
- Photos by email, if that is easy
- 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, and we’ll explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or send us an email.
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. For a village or hamlet like Northfleet Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- 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.
How to prepare
- Keep children and pets away from the work area
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
Get a quote
Want a quote for remedial sealant? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before any work starts.