Kent · England
Remedial sealant & repairs in Cranbrook, Kent
Problem with your failed sealant joints in Cranbrook? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Torn expansion joints
- Sealant peeling off a dusty or damp surface
- Thick, messy sealant smeared over tiles
FAQs for Cranbrook
Will you come out to Cranbrook?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Cranbrook for remedial sealant?
Yes. We work across London and the South East, and Cranbrook is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Cranbrook.
What happens if the problem is the tray or the plumbing?
That’s why we look for the cause first. If the fault is elsewhere, you will know before any work is done.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
When is the sealant fully cured?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
How we handle remedial sealant in Cranbrook
In Cranbrook, as anywhere, remedial jobs tend to look alike: over-sealed joints, hidden mould, repeat leaks and split movement joints. We strip each one back and start from scratch. Typical jobs include caulk or the wrong sealant used in a wet area and a shower that leaks however often it’s resealed, across shrunken worktop sealant, botched or over-sealed joints and mouldy bath & shower sealant.
Homes around Cranbrook range from older cottages to more recent houses. Older homes can move a little with the seasons, which is hard on tired sealant and rigid grout.
Your job is guaranteed for a year, as with all our work.

- Place
- Cranbrook (TN17, TN18)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
In fairness, some problems need a different trade:
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- A leaking trap, valve or supply pipe
- A cracked shower tray or bath (that needs repair or replacing)
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
What we seal
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Expansion joints
- Failed movement joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
Remedial sealant around Cranbrook
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For an older house near a landmark such as Congregational Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Cranbrook is about 12 miles south of Maidstone, in Kent. Across the TN17 area, we cover remedial sealant for homes and businesses. Cranbrook is one of 922 towns and villages in Kent we cover for remedial sealant. Our Crawley page covers work nearby, about 31 miles away.
Here we cover the TN17 and TN18 postcode area for remedial sealant. That includes homes and businesses on High Street, Crane Lane and White Lion Yard and the roads around them. If you’re just outside Cranbrook, we cover Baker's Cross (1 mile east), Coursehorn (1 mile east), Swattenden (1 mile south), Hartley (1 mile south-west) and Gill's Green (3 miles south-west). We also work in nearby towns such as Maidstone (12 miles north), Ashford (15 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (13 miles north-west), Kings Hill (13 miles north-west) and Foley Park (13 miles north).
Landmarks near Cranbrook
In Cranbrook, that means homes and buildings near The Crown Public House, Crane Valley and Cranbrook Church of England Primary School. A little further out are Sissinghurst Castle (2.5 miles north-east) and Benenden Hospital (3.6 miles east).
Landlord and commercial work in Cranbrook
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
How the visit works
You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the work takes a few hours, depending on how many layers have to come out in most cases. Parking around Cranbrook is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We look at how the sealant has failed and check for movement or a leak path.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- Finally we finish the joint and talk you through what we found.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
How to get a quote
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Read more
Places near Cranbrook
Also in Cranbrook
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Find out why the sealant failed first
- Air the bathroom so the sealant can dry
- Keep movement joints clear of mortar and paint
- Clean sealant with mild products only
Clean gently: no scraping, scouring pads or harsh chemicals.
Don’t keep resealing the same joint. Get the cause found first, or the next bead will go the same way.
How we quote for remedial sealant
We do not publish a price list. The quote depends on:
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- The problem you’ve noticed
- If someone has resealed it before
- A few photos by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
DIY sealant or a professional job?
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 does not work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
When to call us in Cranbrook
A lot of failed joints have been sealed over rather than replaced. Silicone does not bond to silicone, so the new layer peels, and damp and mould settle between them.
Signs it’s time to call us include:
- Dark patches showing through the sealant
- Smears and lumps from a botched reseal
- A second bead peeling off the first
- Decorators’ caulk around a bath or shower
If you look after a building such as Cranbrook School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Comparing quotes
- How long to leave it before use
- Is VAT in the price?
- How the colour is chosen
- How long the guarantee is
