West Sussex · England
Glazing Silicone in Portslade
Glazing silicone for conservatories, rooflights, glass panels and shower screens for Portslade, backed by a 12-month guarantee. Ask us for a quote.
- Water tracking down the inner face of the glass
- Shower screens leaking along the wall or tray
- Failed sealant around rooflight glass
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Check the silicone on glass every year or so
- Act on drips or damp patches early
- Clean glass with a mild cleaner and a soft cloth
- Keep harsh solvents off the silicone
Follow the cure time we give you before the joints get wet so the silicone can set properly. After that, clean glass with a mild cleaner.
Act on black or lifting silicone early. Once it starts to peel, water gets behind it and the problem grows.
Glazing silicone in Portslade
Not every silicone suits glass. Our applicators use neutral-cure glazing silicone, which suits glass and most frame materials, finished with a neat, even bead. We work on glass-to-frame joints, glass balustrade bases and glass-to-glass joints, and common reasons people get in touch are glazing silicone that has cracked or come away and cracked silicone between glass panels.
In smaller places like Portslade, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Portslade (BN41, BN3, BN42)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Work for landlords, hotels and businesses
For anyone letting property in or around Portslade, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
What happens on the day
You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes anything from an hour or two to most of a day, depending on the size of the job for a typical job. 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.
- First, we check where the water gets in.
- We remove the old sealant carefully.
- The joint is cleaned and degreased.
- We lay the new bead and tool it smooth.
- We check the finished joints and test with water where it’s safe.
How to prepare
- Keep pets and children clear of the area while we work
- Clear the area around the work
- On commercial sites, let us know about site rules
Get 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. You will have a clear quote before any work starts.
Related advice
When it isn’t the sealant
It helps to know what we cannot do too:
- A frame that needs repairing or replacing
- A sagging or failing conservatory roof
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Rooflights
- Glass-to-glass joints
- Shower screens
- Glass-to-frame joints
- Glass balustrade bases
- Conservatory frames
Leave it or put it right?
A leaking joint won’t fix itself. Left, water can mark floors, damage plaster and rot timber, so it pays to deal with it early. 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.
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Why Portslade clients choose us
- Sealant colour chosen to suit
- You choose the colour before work begins
- More than 20 years in sealant work
- Fully insured
Take a look at what affects the cost or what customers say.
Also near Portslade
Also in Portslade
Windows and doors in Portslade
Portslade is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on glazing joints and frame seals, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Peter Gladwin Primary School, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around St Nicolas Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Fishersgate station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Portslade is about 1 mile west of Brighton and Hove, in West Sussex. Whether you’re in the middle of Portslade or further out, we cover glazing silicone for every kind of property, from flats and houses to offices and hotels. 371 places in West Sussex are on our list, large and small.
Jobs for glazing silicone in BN41, BN3 and BN42 works the same way as everywhere else we cover. Streets in the area include Mill Lane, Crown Road and Drove Road, all of which we cover. Main roads around Portslade include the A293, which makes travel easy. 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). Larger places within reach include 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).
Local landmarks in Portslade
Around Portslade, our work takes us to homes and buildings near King's School, Benfield Hill and The Mill House. The nearest railway station is Fishersgate station, about 0.7 miles south of the centre. Well-known places in the area include British Engineerium (1.8 miles east) and Southlands Hospital (1.8 miles west). Not far away are Shoreham Beach and Thundersbarrow Hill.
FAQs for Portslade
Does living near the coast affect glazing silicone in Portslade?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Fishersgate station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you offer different sealant colours?
We help you choose a colour that suits. The product needed can limit the range.
Is it worth trying 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.
What guarantee do I get?
All our work has a one-year guarantee, and we are fully insured.
Are you insured?
Yes. Mr Mastic is fully insured.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
What the job involves on each surface
Shower screens
Frameless screens rely on silicone at the base and wall. We renew it without marking the glass.
Glass-to-frame joints
Silicone at the glass edge seals it into the frame. A failed bead lets water in.