West Sussex · England
Commercial Sealant in Southbourne
Specialist commercial sealant for Southbourne: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Shower leaks reaching the floor below
- Large numbers of bathrooms needing the same work
- Mouldy bathrooms flagged at a tenancy check
How the visit works
Before we leave, we go over the finished joints with you. The work normally takes anything from a few hours to several days, depending on the number of rooms, depending on how much there is to do. Parking around Southbourne is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Tell us the rooms, hours and site rules, and we’ll plan the programme.
- Tell us what paperwork your site needs, and we confirm what we can supply before any work starts.
- In each room, the old bead comes out and the joint is cleaned and treated.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealant elsewhere.
- Each finished area is checked with you and given a cure time.
How to prepare
- Tell us if parking is tricky
- Clear items away from the joints we are working on
- Keep pets and children clear of the area while we work
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or drop us an email.
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How we handle commercial sealant in Southbourne
Hotel bathrooms take hard daily use and constant cleaning, so sealant there has a hard life. We work through rooms in batches, so only a few are out of use at once. We work on hotel bathrooms, student & care accommodation and rental portfolios, and the jobs we see most are silicone laid over old silicone by a previous contractor and rental bathrooms that need resealing between tenants.
Community buildings, schools and small businesses around places like Southbourne have washrooms and kitchens that see a lot of use. Their sealant and fire-rated joints are as important as those in any bigger building.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Southbourne (PO10)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Surface by surface
Welfare facilities
Staff welfare areas are needed every shift. Work can be split into sections.
Office washrooms & kitchens
In staff kitchens, we degrease joints before resealing, using a food-safe sealant by sinks where it’s needed.
What affects the quote in Southbourne
You’ll get a clear quote before we start. It takes into account:
- Access and height
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Helping us quote
When you contact us, it’s useful to know:
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- Where the property is
- Any previous sealing or DIY work
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
If you manage several properties in or around Southbourne, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Looking after it afterwards
Looking after new joints is easy:
- Put a squeegee in each shower
- Get split or lifting joints looked at early
- Keep a record of which rooms were resealed and when
- Use mild cleaners on sealant, not bleach or abrasives
Add sealant checks to your planned maintenance. A quick look at each bathroom when rooms are checked spots problems early.
In a commercial building, a leak can quickly spread beyond one room: into ceilings below, walls next door and service voids. Early resealing keeps it from getting that far.
Commercial buildings in Southbourne
If you run a hotel, guest house or holiday let in a coastal place like Southbourne, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
If you look after a building such as Southbourne Junior School, busy washrooms and kitchens can be resealed in phases so they stay open. Letting a property close to Southbourne station? Then sealant work can be quoted for a single flat or a whole portfolio. Community buildings like St. John's are part of the picture too: any kitchen and washrooms need the same sealant care as any other building.
Southbourne is about 4 miles east of Havant, in West Sussex. Whether you’re in the middle of Southbourne or further out, commercial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. 371 places in West Sussex are on our list. Portsmouth is on our list too, about 8 miles from Southbourne.
Postcode districts we cover here for commercial sealant: PO10. Whether your property is on Lodgebury Close, Manor Road and Northcote Gardens or anywhere close by, we can help. Other places close to Southbourne include Woodmancote (1 mile north), Lumley (1 mile west), Westbourne (1 mile north-west), Emsworth (1 mile west) and Thorney Island (2 miles south-west). Within a short drive, we also cover Bognor Regis (11 miles south-east), Chichester (6 miles east), Selsey (10 miles south-east), Portfield (6 miles east), Yapton (13 miles east) and East Wittering (6 miles south).
Near you in Southbourne
Locally, jobs take us to homes and businesses close to The Traveller's Joy Public House, Eames Farm and Bourne Community College and the streets around them. Southbourne has its own railway station: Southbourne station. Nearby you’ll also find Warblington Castle (2.5 miles west) and Emsworth Museum (1.3 miles west). For a walk, there’s Stoke Down and Brook Meadow (Emsworth).
Your questions about commercial sealant in Southbourne
Do you work for landlords with property near Southbourne station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Southbourne in your area for commercial sealant?
Yes, Southbourne is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or email us.
Where do you work from?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours for a single washroom, longer for a whole building. We’ll give you a better idea when we quote.
Can you send RAMS and insurance details for our site?
Let us know which documents your site needs, for example RAMS or insurance details, and we will confirm what we can supply with the quote.
How do I get a quote for commercial sealant in Southbourne?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or email us and let us know what needs doing and where.
Why act early in Southbourne
Before an inspection, audit or busy season, sealant is easy to overlook. Planning the work ahead means rooms are finished and cured in time. In a smaller place like Southbourne, 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.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Southbourne
- 20+ years of sealant experience
- ARBOMaster approved applicator
- Homes, businesses and hotels
- A choice of colours where the product allows
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
