Kent · England
Remedial sealant & repairs in Hartley, Kent
Removing failed, mouldy or leaking sealant and putting it right in Hartley, with a 12-month guarantee on every job. Ask us for a quote.
- Beads that never stuck properly
- Products that weren’t meant for the joint
- Wide, uneven beads that look worse than the old ones
How we handle remedial sealant in Hartley
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have pictures when you call 0345 464 0079 or send us an email, along with when it was last resealed. Typical jobs include floor or wall movement joints that have failed and worktop sealant that has shrunk and split, on expansion joints, leaking tray & enclosure joints and shrunken worktop sealant.
Somewhere as small as Hartley, homes tend to be cottages, farmhouses or converted buildings, with some newer houses too. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Location
- Hartley (TN17)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of remedial sealant
Every job gets its own quote. This is what makes a difference:
- Any mould that needs treating
- How many areas need sealing
- Working hours on commercial sites
- The number and length of the joints
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
Helping us quote
To make quoting easier, let us know:
- Whether it has been sealed before
- A few pictures by email, if you can
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for remedial sealant? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Other services in Hartley
Bathrooms and kitchens in Hartley
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
In and around Hartley, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint. Managing a site like High Weald Academy? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Hartley is about 8 miles south-east of Paddock Wood, in Kent. Anywhere in TN17, our applicators can take on remedial sealant. Our Kent coverage runs to 922 places, and Hartley is one of them. Our Crawley page covers work nearby (30 miles or so).
Here we cover the TN17 postcode area for remedial sealant. Whether your property is on Hartley Road, Campion Crescent and Hartley Court Gardens or anywhere close by, we can help. Nearby, we also carry out remedial sealant in Swattenden (1 mile east), Cranbrook (1 mile north-east), Baker's Cross (2 miles north-east), Gill's Green (2 miles south) and Beal's Green (2 miles south). Larger places within reach include Maidstone (13 miles north), Royal Tunbridge Wells (11 miles west), Tonbridge (13 miles north-west), Kings Hill (14 miles north), Foley Park (14 miles north) and Paddock Wood (8 miles north-west).
Around Hartley
In Hartley, that means homes and buildings near Crane Valley, among other places. Other landmarks nearby include Benenden Hospital (4.7 miles east) and Sissinghurst Castle (3.8 miles north-east).
Leave it or put it right?
Mould under a bead can’t be reached by cleaning. The layers have to come out. Around Hartley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Hartley
- A choice of colours where the product allows
- Anti-fungal silicone where joints get wet
- We leave the area clean and tidy
- Colour picked to suit the job
Read how sealant jobs are priced or our reviews.
Landlord and commercial work in Hartley
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours, depending on how many layers have to come out, depending on the size of the job. Somewhere like Hartley needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- The new joint is tooled neatly and we explain anything else we found.
How to prepare
- Mention any tricky access
- Keep pets and children clear of the area while we work
- Clear items away from the joints we’re working on
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
Read more
FAQs for Hartley
Is Hartley in your area for remedial sealant?
Yes, Hartley is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
What guarantee comes with remedial sealant in Hartley?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you remove old sealant without damaging the bath?
Yes, with care. We cut and lift the old sealant with tools suited to the surface, and the residue is cleaned away. Any existing damage is pointed out before we start.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Report a tray that rocks or a worktop that lifts
- Check ceilings under showers for marks
- Clean sealant with mild products only
- Always have old sealant cut out, not covered
Ventilation keeps mould away from the new bead: use the extractor or open a window after showering.
Warning signs: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Each one is worth getting looked at.
How the job changes by surface
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. The sealant is cut out completely, the joint treated with a mould remover and dried ahead of a new anti-fungal bead.
Over-sealed & botched joints
Previous removal attempts can leave scratches or gouges. We take care not to make it worse, and point out any existing damage.