Southampton · England
Glazing Silicone in Portswood
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Portswood, with a one-year guarantee on every job. Call for a quick quote.
- Shower screens leaking along the wall or tray
- Mouldy sealant around glass panels
- A quick top-up bead that didn’t last
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Keep harsh solvents off the silicone
- Wipe the screen down after showering
- Act on drips or damp patches early
- Open vents or windows to let moisture out
Follow the cure time we give you before the joints get wet. From then on, a mild glass cleaner is all it needs.
Shower screen leaks can go unnoticed. It can damage the floor or the ceiling below long before you see it.
How we handle glazing silicone in Portswood
Cracked, stained or lifting silicone on glass looks poor and can leak. We remove it without scratching the glass or frame and reseal the joint. We work on shower screens, glass balustrade bases and rooflights, and common reasons people get in touch are leaks where conservatory glass meets the frame and rooflight joints letting water in.
Around Portswood, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
All our work is covered by our one-year guarantee, wherever you are in Southampton.
- Location
- Portswood (SO17, SO14, SO18)
- Wider area
- Southampton
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours, depending on how many joints need doing. In a smaller place like Portswood, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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.
- The glass and frame are cleaned and degreased.
- New glazing silicone goes in and is tooled to a neat finish.
- We check the joints and, where safe, run water over them.
How to prepare
- Tell us about any water getting in
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
Signs you need glazing silicone in Portswood
On shower screens, constant water and cleaning products wear silicone. Mould gets into it and the joint starts to lift.
The problems people usually mention when they call are:
- Glazing silicone that has cracked or come away
- A quick top-up bead that didn’t last
- Water tracking down the inner face of the glass
- Water getting into a conservatory at the joints
Schools such as St Denys Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Which colour the sealant will be
- Which sealant they’ll use, and why
- Whether VAT is included
- How long to leave it before use
Glazing silicone in Portswood: local notes
Portswood is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on glazing joints and frame seals, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to St Denys station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows. Homes close to Highfield Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Portswood is about 1 mile north of Southampton, in Southampton. For glazing silicone in and around Portswood, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Southampton, Portswood included. Portswood is one of 40 towns and villages in Southampton where we work for glazing silicone.
Work in SO17, SO14 and SO18 works the same way as everywhere else we cover. That includes homes and businesses on Ivy Road, Alma Road and Lawn Road. Main roads around Portswood include the A335 and A3035, which makes travel easy. Other places close to Portswood include St Denys (1 mile south-east), Southampton (1 mile south), Inner Avenue (1 mile south-west), Bitterne Manor (1 mile south-east) and Bitterne Park (1 mile east). Further out, we also cover Thornhill (3 miles south-east), Maybush (3 miles west), Eling (4 miles west), Rownhams (3 miles north-west), Millbrook (3 miles west) and Weston (3 miles south).
What’s near Portswood
Locally, jobs take us to homes and businesses close to St Anne's Catholic School, St Mary's Independent School and South Western Arms. Portswood has its own railway station: St Denys station. A little further out are Marlands Shopping Centre (1.5 miles south) and Royal South Hants Hospital (0.9 miles south). Green spaces nearby include Netley Common.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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.
Also near Portswood
More services for Portswood
Why it’s worth doing now in Portswood
Replacing windows or a shower screen is not needed for a failed joint. If the glass and frame are sound, new silicone is often all it takes. Homes in smaller places like Portswood can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
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 the work is at height. We take all of that into account in your quote.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- Homes, businesses and hotels
- Sealant colour chosen to suit
- Colour agreed with you before any work starts
Take a look at how sealant jobs are priced or customer reviews.
When it is not the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Failed flashing around a conservatory
- Glass that needs replacing
- Rotten or badly damaged frames
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
Where we work in Portswood
- Glass-to-glass joints
- Rooflights
- Shower screens
- Glass-to-frame joints
- Glass balustrade bases
- Conservatory frames
FAQs for Portswood
Is Portswood within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near St Denys station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Is a special sealant needed for glass?
Glass needs a sealant made for glazing. We use neutral-cure glazing silicone with anti-fungal products in bathrooms.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Will resealing stop my conservatory leaking?
It depends on the cause. Failed glazing and frame joints can be resealed, but roof panels and structural problems need a conservatory specialist or roofer.
Is balustrade sealant something you do?
Yes. The sealant joint at the base can be renewed. We don’t install or replace the glass.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for property managers and facilities teams in Portswood and across Southampton. We can quote a run of properties together.