West Sussex · England
Remedial Sealant in Cowfold
Remedial sealant in Cowfold from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Caulk or the wrong sealant used in a wet area
- Movement joints that have split or pulled away
- Leaks that keep coming back after resealing
How we handle remedial sealant in Cowfold
Remedial jobs in Cowfold generally fall into a few patterns: over-sealed joints, hidden mould, repeat leaks and split movement joints. Each is stripped back and done again properly. If you are dealing with over-sealed joints coming away and repeat leaks from the same joint, we can put it right, whatever the surface.
Homes around Cowfold are mostly houses and cottages rather than flats, some with bathrooms tucked into older rooms or extensions. Sealant and grout wear out here just as they do anywhere: old material cut out, joints cleaned and a fresh finish laid.
Our work is backed for twelve months, in Cowfold and everywhere else we cover.
- Place
- Cowfold (RH13)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
For anyone letting property in or around Cowfold, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Also near Cowfold
Also in Cowfold
Your questions about remedial sealant in Cowfold
Do you cover smaller places like Cowfold?
Yes, Cowfold is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is remedial sealant in Cowfold guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you offer different sealant colours?
In most cases you can choose. We’ll explain which colours are available and agree one before any work starts.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Cowfold.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Can you take off two layers of silicone?
Yes. We cut out all the layers and clean off the film, then the joint is resealed once.
Can you reseal a split movement joint?
Yes. If a joint has been filled with mortar or rigid filler, we rake it out where possible, then the joint is sealed properly.
Looking after it afterwards
Looking after new joints is easy:
- Look for stains below bathrooms now and then
- Keep bleach and abrasives off the bead
- Keep movement joints clear of mortar and paint
- Don’t add new sealant on top of old
Keep the room ventilated: use the extractor or open a window after showering.
If a joint has failed more than once, stop resealing it. Have someone find out why, otherwise the next attempt will fail too.
What the job involves on each surface
Windows & doors
Smeared or badly matched mastic can be cut out and redone neatly, in a colour that suits the frame.
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so we spend extra time cleaning.
What affects the cost of remedial sealant
We do not publish a price list, because no two jobs are the same. The quote depends on:
- The size of the job
- Whether the work is at height
- The number of rooms or windows
- The old material and how stubborn it is
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What we need to know
To help us quote quickly, let us know:
- Any previous sealing or DIY work
- What’s wrong with the joints now
- The rough size of the job
- Access, such as stairs, a lift or height
Want a quote for remedial sealant? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Cowfold 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 site and facilities teams at buildings such as St Peter's CofE (Aided) Primary School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. For an older house near a landmark such as Church of St Peter, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Cowfold is about 6 miles south of Horsham, in West Sussex. Every kind of property in Cowfold can book us for remedial sealant. Every job comes with our 12-month guarantee. Cowfold is one of 371 towns and villages in West Sussex where we work for remedial sealant. We also work in Crawley, around 9 miles away.
Postcode districts we cover here for remedial sealant: RH13. If you need remedial sealant at a property on Oakfield Road, Acorn Avenue and Holm Oaks or a nearby road, we can help. We also cover the places around Cowfold: Kent Street (1 mile south-east), Wineham (2 miles south-east), Shermanbury (2 miles south), Crosspost (3 miles east) and Twineham Green (3 miles south-east). Further out, we also cover Crawley (9 miles north-east), Horsham (6 miles north), Worthing (13 miles south-west), Haywards Heath (8 miles east), Burgess Hill (7 miles east) and East Grinstead (15 miles north-east).
What’s near Cowfold
A little further out are The Dene Hospital (4.9 miles east). The countryside around Cowfold includes Knepp Wildland.
Why act early in Cowfold
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. Where a wall is exposed, as many are in small places like Cowfold, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
What you get with us
- 20+ years of sealant experience
- Full insurance on every job
- Rated 4.9 stars on Google
- ARBOMaster approved applicator
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours, depending on how many layers have to come out, depending on the amount of work. For a village or hamlet like Cowfold, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
How to get a quote
We quote each job on its own. Just ring 0345 464 0079 or email us with the details and send photos if you have them.
Related advice
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.