West Sussex · England
Remedial sealant & repairs in Upperton, West Sussex
We cover Upperton for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Smears and lumps from a botched reseal
- Black mould underneath the bead
- Sealant applied over old sealant that has lifted
Why deal with it now?
Repeat failures have a cause. Finding it, whether movement, water from elsewhere or an unsuitable product, ends the cycle. Around Upperton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is generally more efficient than separate visits. We’ll give you a clear quote for the lot.
Why us?
- Full insurance on every job
- We agree the colour with you first
- A choice of colours where the product allows
- 180+ five-star Google reviews
Take a look at our cost guide and our reviews.
Remedial sealant for homes and businesses in Upperton
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We are fully insured ARBOMaster approved applicators, and every remedial job comes with a 12-month guarantee. Common call-outs are for movement joints that have split or pulled away and black mould underneath the bead, across failed movement joints, leaking tray & enclosure joints and botched or over-sealed joints.
Around Upperton, it’s houses and cottages rather than flats. Sealant and grout wear out here just as they do anywhere: old material cut out, joints cleaned and a fresh finish laid.
We stand behind the work with a 12-month guarantee.
- Where
- Upperton (GU28)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Surface by surface
Worktops & kitchens
Shrunken worktop sealant leaves a gap that lets water into the back edge. We strip it, degrease the joint and reseal colour-matched to the worktop.
Over-sealed & botched joints
Thick, smeared sealant looks messy and hides problems. We strip it back so we can see the joint, and then we reseal it neatly.
What affects the cost of remedial sealant
Some jobs are bigger than they look, and some smaller. The main factors:
- When we can work, for business premises
- How much there is to do
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What we need to know
To help us quote quickly, let us know:
- Where the property is
- The type of property
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
Questions from Upperton
Can you do remedial sealant in Upperton?
Yes, Upperton is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Is remedial sealant in Upperton guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Upperton.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Also near Upperton
More services for Upperton
Landlords, agents and businesses in Upperton
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Remedial sealant in Upperton: local notes
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
In and around Upperton, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Upperton is about 12 miles north-east of Chichester, in West Sussex. Across the GU28 area, we can carry out remedial sealant at your property. 371 places in West Sussex are on our list. We also work in Crawley, about 21 miles from Upperton.
Every address in GU28 is covered for remedial sealant, from the main roads to the quietest streets. Other places close to Upperton include Tillington (1 mile south-east), Hampers Green (1 mile east), River (1 mile west), Petworth (1 mile south-east) and Rotherbridge (2 miles south). Larger places within reach include Horsham (14 miles east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (14 miles south), Rustington (14 miles south-east) and Storrington (10 miles south-east).
What’s near Upperton
A little further out are Midhurst Community Hospital (4.3 miles west) and Coultershaw Heritage Site (2.2 miles south). For a walk, there’s Graffham Common and Blackdown.
When to call us in Upperton
Water from somewhere else can ruin a good seal. A slow leak behind the tiles soaks the joint from the back, and the sealant lifts or goes mouldy from underneath.
Any of these means the joints need attention:
- Mould trapped under a layer of silicone
- Decorators’ caulk around a bath or shower
- Sealant that came away because the surface wasn’t prepared
- Wide, uneven beads that look worse than the old ones
In the older streets around The Parish Church of All Hallows, older homes can move a little, which is hard on rigid grout and tired sealant.
Comparing quotes
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
- Whether they’re fully insured
What happens on the day
We keep the work tidy and contained to the joints we are treating, so you can carry on as normal. Expect the work to take a few hours for most joints, depending on how much old sealant has to come out. For a village or hamlet like Upperton, the journey is planned in advance: 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.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
How to prepare
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
- Mention if the joints have been sealed before
Ask for a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.