West Sussex · England
Commercial Sealant in Portslade
Problem with your washrooms, bathrooms and kitchens in Portslade? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Leaks from showers into rooms or ceilings below
- Tired sealant ahead of a health and safety audit
- Split sealant around staff kitchen worktops and sinks
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Commercial sealant in Portslade
With over 20 years in sealant work, we’re a fully insured, ARBOMaster approved team. Tell us what paperwork your site needs, such as RAMS or insurance details, and we’ll confirm what we can provide. If you have whole floors of tired en suites and sealant failing again soon after quick repairs, we can help, whatever the surface.
Community buildings, schools and small businesses around places like Portslade 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 stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.
- Where
- Portslade (BN41, BN3, BN42)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Portslade
Other services in Portslade
What happens if it’s left?
First impressions are often made in the washroom. Mouldy silicone looks unhygienic, however hard housekeeping work, and scrubbing will not fix it. New sealant does. In a smaller place like Portslade, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
No two jobs are quite the same, so each one gets its own quote. 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.
Why Portslade clients choose us
- White, clear, grey or coloured to suit, where the product allows
- Approved under the ARBOMaster scheme
- 4.9 on Google from 180+ five-star reviews
- Sealant colour chosen to suit
Read what affects the cost or what customers say.
Questions from Portslade
Is Portslade within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do commercial sealant in Portslade?
Yes. Our work covers London and the South East, and Portslade is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Do you offer different sealant colours?
We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can you take on a whole building?
Yes. We work through big sites room by room or floor by floor, so only part of the building is affected at once.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Quotes for commercial sealant in Portslade
For a quick quote, just ask. What matters most is:
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Working hours on commercial sites
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
What to tell us when you ask for a quote:
- The type of property
- If someone has resealed it before
- Access, such as stairs, a lift or height
- Where the property is
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
What we can’t put right
Sealant isn’t the answer to every problem, and we’ll tell you before we start. It won’t solve:
- A broken extractor fan behind the mould problem
- Water coming from plumbing rather than sealant
- Tiles coming off the wall
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Hotel bathrooms
- Rental portfolios
- Retail & leisure sites
- Student & care accommodation
- Office washrooms & kitchens
- Welfare facilities
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Schedule work around occupancy
- Include the silicone on your room checklists
- Get split or lifting joints looked at early
- Keep extractor fans working and serviced
Daily cleaning with harsh chemicals shortens the life of any sealant. A mild cleaner and a soft cloth is enough for the joints.
In a commercial building, a leak can quickly spread beyond one room: into ceilings below, walls next door and service voids. Dealing with the joint early stops that spread.
How it works
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the number of rooms. For a job in Portslade, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start with a site walk to agree the rooms and the timing.
- Room by room, we protect the area and remove all the old sealant.
- The joints are degreased, treated and left to dry.
- We lay the right sealant for each area, with anti-fungal silicone in wet rooms.
- Each room is checked and handed back with its cure time.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
How to get a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Advice
Landlords, agents and businesses in Portslade
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Workplaces and buildings in Portslade
For seaside hotels, guest houses and holiday lets around Portslade, 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. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
If you look after a building such as Peter Gladwin Primary School, sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours. If you look after a church, hall or community building such as St Nicolas Church, any kitchen and washrooms need the same sealant care as any other building. For landlords with property near Fishersgate station, several rental properties can be resealed on one programme.
Portslade is about 1 mile west of Brighton and Hove, in West Sussex. Every kind of property in Portslade can book us for commercial sealant. Every job comes with our 12-month guarantee. Our West Sussex coverage runs to 371 places, and Portslade is one of them.
We work across the BN41, BN3 and BN42 postcode area for commercial sealant and the streets around it. Commercial sealant is available to properties on Mill Lane, Crown Road and Drove Road. You will find Portslade on the A293, which makes it straightforward to reach. Other places close to Portslade include Hangleton (1 mile north-east), Southwick (1 mile south-west), Kingston by Sea (1 mile west), Shoreham-by-Sea (2 miles west) and Old Shoreham (3 miles west). We also work in nearby towns such as Worthing (8 miles west), Haywards Heath (12 miles north-east), Burgess Hill (9 miles north-east), Littlehampton (14 miles west), Lancing (5 miles west) and Rustington (13 miles west).
Around Portslade
In Portslade, that means homes and buildings near King's School, Benfield Hill and The Mill House and the streets around them. The closest station to Portslade is Fishersgate station, about 0.7 miles south. A little further out are British Engineerium (1.8 miles east) and Southlands Hospital (1.8 miles west). The countryside around Portslade includes Shoreham Beach and Thundersbarrow Hill.