West Sussex · England
Remedial Sealant in Crawley Down
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Crawley Down. Fully insured, ARBOMaster approved and guaranteed for a year.
- Worktop sealant that has shrunk and split
- Wide, uneven beads that look worse than the old ones
- Beads that never stuck properly
Crawley Down homes and their sealant
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
For an older house near a landmark such as All Saints Parish Church, older homes can move a little, which is hard on rigid grout and tired sealant. For landlords with property near East Grinstead station, botched sealant from a previous quick fix is easier to strip out between tenants.
Crawley Down is about 3 miles west of East Grinstead, in West Sussex. Anywhere in RH10, our applicators can take on remedial sealant. We cover 371 towns and villages across West Sussex, from the larger towns to small villages.
Here we cover the RH10 postcode area for remedial sealant. Remedial sealant is available to properties on Station Road, Forest Close and Burleigh Way and the roads around them. If you’re just outside Crawley Down, we cover Furnace Wood (1 mile north), Snow Hill (1 mile north), Turners Hill (1 mile south), Domewood (1 mile north) and Felbridge (2 miles north-east). Further out, we also cover Crawley (5 miles west), Horsham (11 miles west), Haywards Heath (9 miles south), Burgess Hill (12 miles south), East Grinstead (3 miles east) and Broadfield (6 miles west).
Local landmarks in Crawley Down
We work in homes and buildings around Imberhorne School, among other places. For rail, the closest station is East Grinstead station, roughly 2.5 miles east. Nearby you will also find Queen Victoria Hospital (3.5 miles east) and Effingham Park Motor Museum (1.4 miles north-west). Green spaces nearby include Hedgecourt Lake.
Remedial sealant in Crawley Down
Remedial jobs in Crawley Down normally fall into a few patterns: over-sealed joints, hidden mould, repeat leaks and split movement joints. We strip each one back and start from scratch. If you have caulk or the wrong sealant used in a wet area and gaps opening along the back of the worktop, we can help, whatever the surface.
Homes around Crawley Down range from older cottages to more recent houses. In older homes, walls and floors can move a little more, so the right flexible sealant matters.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Location
- Crawley Down (RH10)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
When it is not the sealant
A few problems are outside what sealant work can do:
- A tray or worktop that needs refixing first
- Cracks in the fitting rather than the joint
- Plumbing leaks behind walls or under trays
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Shrunken worktop sealant
- Expansion joints
- Mouldy bath & shower sealant
- Failed movement joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
Why it’s worth doing now in Crawley Down
Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. In a smaller place like Crawley Down, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
What you get with us
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
Read our cost guide or our reviews.
How the job changes by surface
Worktops & kitchens
Kitchen joints hold grease and residue, so cleaning takes longer than in a bathroom before resealing.
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Crawley Down questions
Will you come out to Crawley Down?
Yes. Crawley Down is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do remedial sealant in Crawley Down?
Yes. We work across London and the South East, and Crawley Down is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Is remedial work guaranteed?
Yes, for 12 months. If we’ve pointed out another problem, getting it fixed helps the new joint last.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Nearby places to Crawley Down
What else we do in Crawley Down
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours, depending on how many layers have to come out. In a smaller place like Crawley Down, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you are told about anything else we found.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
Getting a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
Advice
How we quote for remedial sealant
There’s no set price list. What we look at:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Helping us quote
What to tell us when you ask for a quote:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
If you are in Crawley Down and need remedial sealant, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.