West Sussex · England
Remedial sealant & repairs in Ashington, West Sussex
Remedial sealant in Ashington from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Kitchen joints letting water behind the worktop
- A second bead peeling off the first
- Leaks that keep coming back after resealing
Should I try it myself first?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
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. All the old material has to come out first.
Remedial sealant in Ashington
If a joint has been resealed and is leaking again, it’s worth a proper look. Send photos when you ring 0345 464 0079 or drop us an email, and say how long ago it was last done. If you’re dealing with leaks that keep coming back after resealing and worktop sealant that has shrunk and split, we can put it right, whatever the surface.
Somewhere as small as Ashington, homes tend to be cottages, farmhouses or converted buildings, with some newer houses too. Movement in older walls and floors tends to show first as cracked grout or split sealant.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Ashington (RH20)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Keeping the joints in good condition
So the new joints stay in good condition:
- Have loose fittings fixed before resealing
- Air the bathroom so the sealant can dry
- Keep an eye on the ceiling below the bathroom
- Do not point over movement joints
Keep the room ventilated: run the fan during and after showers, or open a window.
If a joint has failed more than once, stop resealing it. Get the cause found first, or the next bead will go the same way.
Signs you need remedial sealant in Ashington
Products get mixed up: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.
The most common problems we see are:
- Decorators’ caulk around a bath or shower
- A shower that leaks however often it’s resealed
- Black mould underneath the bead
- Sealant that came away because the surface wasn’t prepared
For site and facilities teams at buildings such as Ashington CofE Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Comparing quotes
- Whether you can choose the colour
- Whether they seal over old material or remove it
- Are they insured?
- Whether VAT is included
Bathrooms and kitchens in Ashington
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
In the older streets around Ashington Methodist Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Ashington is about 8 miles north of Worthing, in West Sussex. Ashington gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 371 places across West Sussex, from the larger towns to small villages. There’s also a page for Brighton, about 13 miles away.
Our applicators cover all of RH20 for remedial sealant. If you need remedial sealant at a property on London Road, The Sands and Hillcrest Drive or a nearby road, our applicators can take on the job. If you are just outside Ashington, we cover Wiston (1 mile south-east), Dial Post (3 miles north-east), Ashurst (3 miles east), Broomer's Corner (3 miles north) and Whitehall (3 miles north). Larger places within reach include Crawley (15 miles north-east), Horsham (10 miles north), Worthing (8 miles south), Haywards Heath (14 miles east), Burgess Hill (12 miles east) and Littlehampton (10 miles south-west).
Near you in Ashington
In Ashington, that means homes and buildings near Rydon Community College and the streets around them. A little further out are The Storrington And District Museum (2.6 miles south-west). The countryside around Ashington includes Chanctonbury Hill and Knepp Wildland.
What the job involves on each surface
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, in a colour that suits the frame.
Mouldy bath & shower sealant
Repeat mould generally points to a damp, poorly aired room. Along with resealing, we will mention if the room needs better ventilation.
What happens if it’s left?
Mould under a bead cannot 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 Ashington, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Why Ashington customers choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
- We never seal over old sealant
- Tidy, careful work
How we quote for remedial sealant
We quote each job individually. This is what makes a difference:
- How much there is to do
- The type of sealant required
- When we can work, for business premises
- Access and height
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Helping us quote
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- Any previous sealing or DIY work
- The address or postcode of the job
- A few photos by email, if you can
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
How the visit works
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes a few hours for a typical bath or shower, longer where several layers have been applied for a typical job. Somewhere like Ashington needs a little journey planning: 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.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
Ask for a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
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Questions from Ashington
Can you do remedial sealant in Ashington?
Yes. Our work covers London and the South East, and Ashington is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Is there a guarantee on remedial sealant in Ashington?
All our work, in Ashington and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
My shower still leaks after a reseal. Can you sort it?
Yes. First we check whether the leak is the sealant at all, then strip and reseal the joints.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Ashington.
Can you match the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
