West Sussex · England
Thorney Island Commercial Sealant
Sealant work for offices, hotels, washrooms and commercial buildings for homeowners, landlords and businesses in Thorney Island. Fully insured, ARBOMaster approved and guaranteed for a year.
- Washrooms that need sorting before an inspection
- Too many rooms to reseal without closing the building
- Worktop sealant that has shrunk and stained
Why it’s worth doing now in Thorney Island
A quick bead over the old sealant might get a room back in use today, but silicone does not bond to silicone, so it lifts. Doing it properly once is less disruptive than doing it badly twice. Around Thorney Island, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why Thorney Island customers choose us
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows
- Every job guaranteed for a year
Take a look at our cost guide or our reviews.
How we handle commercial sealant in Thorney Island
Student halls, care homes and supported housing have many similar bathrooms. We agree a programme and work through them in order, working around residents and staff routines. We work on student & care accommodation, retail & leisure sites and office washrooms & kitchens, and the jobs we see most are large numbers of bathrooms needing the same work and sealant failing again soon after quick repairs.
In a village or hamlet like Thorney Island, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
We stand behind the work with a 12-month guarantee, so you are covered after we have gone.
- Location
- Thorney Island (PO10)
- Region
- West Sussex
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Surface by surface
Hotel bathrooms
Hotel showers and baths get used and cleaned every day, so we use anti-fungal sanitary silicone and finish joints smooth for easy cleaning.
Student & care accommodation
Many accommodation blocks have rows of similar en suites. We agree a programme and work through them steadily.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the joints during routine room inspections
- Log resealing so you know what’s due
- Don’t leave a failed joint until the next refurbishment
- Plan resealing around quiet periods
Extract fans need to work. Where a room has no window, the fan is what dries it out, and mould comes back faster without it.
A room that can’t be let or used is lost income. Small sealant faults caught early can be fixed between bookings or tenancies, instead of turning into a leak that closes the room.
Commercial buildings in Thorney Island
For seaside hotels, guest houses and holiday lets around Thorney Island, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Community buildings like The Parish Church of St Nicholas are part of the picture too: its kitchen and washroom sealant needs looking after like anywhere else. For landlords with property near Southbourne station, we can quote for one property or a whole portfolio of rentals. Schools such as Thorney Island Community Primary School are buildings too, and busy washrooms and kitchens can be resealed in phases so they stay open.
Thorney Island is about 4 miles south-east of Havant, in West Sussex. Across the PO10 area, we can carry out commercial sealant at your property. 371 places in West Sussex are on our list. There’s also a page for Portsmouth, roughly 7 miles from Thorney Island.
We cover every part of PO10 for commercial sealant and the streets around it. That includes homes and businesses on Hunter Road, Emsworth Road and Spartan Close. Neighbouring places we cover for commercial sealant include West Thorney (1 mile south-east), North Hayling (1 mile west), Tye (1 mile south-west), Northney (1 mile west) and Emsworth (2 miles north). Larger places within reach include Bognor Regis (11 miles east), Chichester (7 miles east), Selsey (9 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (5 miles south-east).
Around Thorney Island
Around Thorney Island, our work takes us to homes and buildings near Bourne Community College and Eames Farm and the streets around them. For rail, the closest station is Southbourne station, about 1.8 miles north-east. Nearby you will also find Havant War Memorial Hospital (3.2 miles north-west) and Emsworth Museum (1.6 miles north). The countryside around Thorney Island includes Nutborne Marshes.
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours per area, with larger sites planned over several visits and we leave things clean and tidy. For a village or hamlet like Thorney Island, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We agree a programme with you: which rooms, in what order, at what times.
- Tell us what paperwork your site needs, and we confirm what we can supply before work begins.
- Old sealant is cut out room by room and joints cleaned and treated.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealant elsewhere.
- Rooms are handed back in order, each with its cure time.
Preparing for the visit
- Mention any parking rules near the property
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
Read more
Thorney Island questions
I let a flat near Southbourne station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Is Thorney Island in your area for commercial sealant?
Yes, Thorney Island is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Can the hotel stay open while you work?
Yes. We work through rooms in batches, so only a few are out of use at once. Housekeeping are told when each room can be let again.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
How long does the job take?
Typically it takes as long as the scope needs, from one welfare room to a full building. Bigger jobs take longer.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What affects the cost of commercial sealant
Your quote is based on your job. We look at:
- Any mould that needs treating
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- How we’d reach the joints
- Roughly how big the job is
- Where the job is, and your postcode
- If someone has resealed it before
For commercial sealant in Thorney Island, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Also near Thorney Island
More services for Thorney Island
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you do try it yourself, take your time over the 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.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Extraction that isn’t working, which needs an electrician or ventilation contractor
- Water damage behind the tiles that needs a tiler or builder
- Assessing what fire stopping a building needs
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
Where we work in Thorney Island
- Office washrooms & kitchens
- Student & care accommodation
- Rental portfolios
- Retail & leisure sites
- Welfare facilities
- Hotel bathrooms
