Portsmouth · England
Glazing & conservatory sealant in Portsea, Portsmouth
Glazing joints in Portsea need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Leaks from the base of a shower screen
- Water tracking down the inner face of the glass
- Leaks where conservatory glass meets the frame
Surface by surface
Glass-to-frame joints
Where glass sits in a frame, silicone keeps water out. When it splits, water can get into the frame.
Glass balustrade bases
The base joint is cut out and resealed. Glass fitting is a separate trade.
Glazing silicone for homes and businesses in Portsea
Not every silicone suits glass. We use a neutral-cure glazing silicone that’s suited to glass and the frame, finished with a neat, even bead. Typical jobs include rooflight joints letting water in and water tracking down the inner face of the glass, across conservatory frames, glass-to-glass joints and glass-to-frame joints.
Houses in smaller places like Portsea can stand more in the open than those in a built-up town. That is hard on the mastic around frames and sills.
Whatever the size of the job, it’s backed by our one-year guarantee in Portsea and across Portsmouth.
- Where
- Portsea (PO1, PO12, PO5)
- Wider area
- Portsmouth
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Portsea
Can you help a landlord with a rental near Portsmouth Harbour station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Will you come out to Portsea?
Yes, Portsea is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is it possible to redo the silicone on a shower screen?
Yes, we do these often. The screen is resealed with anti-fungal silicone suited to bathrooms.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Is the work guaranteed?
All our work has a 12-month guarantee.
How do I get a quote for glazing silicone in Portsea?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Do you fit new glass or sealed units?
That’s not something we do. Misting between panes means the sealed unit has failed and needs replacing by a glazier.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Common problems we fix in Portsea
Heat and cold make glass and frames move at different rates. In time, the sealant splits or pulls away.
It’s worth asking for a quote if you see:
- Glazing silicone that has cracked or come away
- Black or yellowed silicone on glass joints
- Rooflight joints letting water in
- Conservatory leaks at frame and glazing joints
Schools such as Portsmouth Grammar School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Whether VAT is included
- Whether you can choose the colour
- Who turns up on the day
- What insurance they hold
What happens on the day
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. A visit to Portsea is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We find where water is getting in and check whether it’s a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- We look over every joint and, where we can, test it with water.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or email us.
Read more
Also near Portsea
Other services in Portsea
How we quote for glazing silicone
There’s no set price list, because jobs vary so much. The quote depends on:
- Whether there’s mould to deal with
- Whether the work is at height
- How much there is to do
- How many rooms, windows or areas are involved
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email and we’ll talk you through it.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- The rough size of the job
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, call 0345 464 0079 or email us.
What glazing silicone looks like in Portsea
Portsea is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Portsmouth Harbour station change hands often, and a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. In the older streets around St Ann's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Portsea is about 1 mile south-west of Portsmouth, in Portsmouth. If you need glazing silicone in Portsea, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Portsmouth. Portsea is one of 19 towns and villages in Portsmouth we cover.
Work in PO1, PO12 and PO5 is quoted and booked the same way as anywhere else. Whether your property is on Main Road, Park Road and Scott Road or a nearby road, our applicators can take on the job. We also cover Portsmouth Point (1 mile south), Clayhall (2 miles south-west), Haslar (2 miles south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). We also work in nearby towns such as Hilsea (3 miles north-east), Wymering (4 miles north-east), Paulsgrove (4 miles north), Cosham (3 miles north-east), Drayton (4 miles north-east) and Farlington (5 miles north-east).
Landmarks near Portsea
Around Portsea, our work takes us to homes and buildings near The Ship & Castle pub, St Jude's CofE Primary School and Charter Academy, among other places. There’s a railway station in Portsea itself: Portsmouth Harbour station. Other landmarks nearby include Royal Portsmouth Hospital (0.8 miles east) and Genesis Expo Creationist Museum (under half a mile south). The countryside around Portsea includes Milton Locks and Portsdown Hill.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Wipe the screen down after showering
- Avoid strong solvents on or near the sealant
- Do not use a blade near the sealant
- Act on drips or damp patches early
Keep the new joints dry for as long as we advise so the silicone can set properly. From then on, a mild glass cleaner is all it needs.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the problem grows.
Why it’s worth doing now in Portsea
Topping up old silicone can look like a fix, but silicone does not stick to silicone, and the leak normally returns. Cutting out and resealing properly lasts. In a smaller place like Portsea, 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.
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why Portsea clients choose us
- A choice of colours where the product allows
- Over 20 years’ experience
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
Read how sealant jobs are priced and customer reviews.