Kent · England
Remedial sealant & repairs in Northdown, Kent
Removing failed, mouldy or leaking sealant and putting it right for homeowners, landlords and businesses in Northdown. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mould trapped under a layer of silicone
- A shower that leaks however often it’s resealed
- Decorators’ caulk around a bath or shower
Remedial sealant in Northdown: local notes
Northdown is within about 1 mile 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 Northdown. 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, older homes can move a little, which is hard on rigid grout and tired sealant. If you let a flat or house near Broadstairs station, a joint that keeps failing is best fixed properly while the property is empty.
Northdown is about 2 miles east of Margate, in Kent. Wherever you are in the CT9 postcode area, we can carry out remedial sealant at your property. We cover 922 towns and villages across Kent, large and small. For nearby work, see our Chelmsford page (47 miles or so).
Postcode districts we cover here for remedial sealant: CT9 and CT10. You will find streets such as Old Road, Holly Lane and Green Lane, and we cover them all. Neighbouring places we cover for remedial sealant include Palm Bay (1 mile north-west), Cliftonville (1 mile west), Kingsgate (1 mile east), St Peter's (1 mile south) and Broadstairs (2 miles south). Within a short drive, we also cover Ramsgate (3 miles south), Deal (12 miles south), Herne Bay (12 miles west), Walmer (13 miles south), St Lawrence (3 miles south) and Newington (3 miles south-west).
Landmarks near Northdown
Locally, jobs take us to homes and businesses close to Captain Digby Inn and Dane Court Grammar School, among other places. Northdown’s nearest station is Broadstairs station, roughly 1.8 miles south. Nearby you’ll also find Westwood Cross (2.1 miles south-west) and Queen Elizabeth the Queen Mother Hospital (1.4 miles south-west).
Remedial sealant for homes and businesses in Northdown
A joint that keeps failing generally has a reason. A tray that moves, a worktop that is not fixed, the wrong sealant or water getting in elsewhere will defeat even a perfect bead. Finding that cause comes before any new sealant. Common call-outs are for kitchen joints letting water behind the worktop and wide, uneven beads that look worse than the old ones, across expansion joints, shrunken worktop sealant and mouldy bath & shower sealant.
Smaller places like Northdown still have plenty of bathrooms that work hard every day. Whether it’s a cottage bathroom or a newer en suite, the approach is the same: all the old material out, the joint cleaned and dried, then new sealant or grout.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Northdown (CT9, CT10)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a typical bath or shower, longer where several layers have been applied. In a smaller place like Northdown, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- 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.
- Once dry, a suitable sealant is applied and tooled.
- We give you the cure time and explain what caused the failure.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
How to get a quote
For remedial sealant in Northdown, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Signs you need remedial sealant in Northdown
How a joint is built matters as much as the product. A bead bonded on three sides, or laid too thick, can’t flex, so it tears when the joint moves. Backing sets the depth and stops that.
These are the problems we’re asked about most:
- Floor or wall movement joints that have failed
- Beads that never stuck properly
- Mould trapped under a layer of silicone
- Wide, uneven beads that look worse than the old ones
For site and facilities teams at buildings such as Palm Bay Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Before you book anyone
- Which sealant they’ll use, and why
- What happens if they find a problem under the old sealant
- What insurance they hold
- How long the guarantee is
How we quote for remedial sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Any mould that needs treating
- The number of rooms or windows
- Whether the work is at height
- The old material and how stubborn it is
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- Roughly how big the job is
- Whether it has been sealed before
- A few photos by email, if you can
- Where the job is, and your postcode
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.
Places near Northdown
What else we do in Northdown
For landlords and businesses
For anyone letting property in or around Northdown, several properties can be quoted together. Just tell us the addresses and what each one needs.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What sealant work cannot fix
It helps to know what we can’t do:
- Water damage behind tiles that needs a tiler
- Cracks in the fitting rather than the joint
- A tray or worktop that needs refixing first
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Where we work in Northdown
- Shrunken worktop sealant
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Expansion joints
- Leaking tray & enclosure joints
- Failed movement joints
Why it’s worth doing now in Northdown
A joint that has failed twice will fail again unless the cause is dealt with. Finding it, whether movement, water from elsewhere or an unsuitable product, ends the cycle. In an older home around Northdown, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
Why book with us
- Fully insured
- Rated 4.9 stars on Google
- Tidy, careful work
- Homes, businesses and hotels
Take a look at how sealant jobs are priced and our reviews.
FAQs for Northdown
Do you work for landlords with property near Broadstairs station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Northdown?
Yes, Northdown is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we are fully insured.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
How long should I leave it?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Always have old sealant cut out, not covered
- Look for stains below bathrooms now and then
- Air the bathroom so the sealant can dry
- Report a tray that rocks or a worktop that lifts
Watch the joint over the first few weeks, especially if movement was the problem. Should anything change, phone 0345 464 0079 or drop us an email.
Mould under a second layer of sealant keeps growing out of sight. By the time it shows through, the joint is well past saving.