Hampshire · England
Glazing Silicone in Knowle
Glazing silicone for Knowle and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Rooflight joints letting water in
- Leaks where conservatory glass meets the frame
- Silicone pulling away from the glass
How we handle glazing silicone in Knowle
Many conservatory leaks come down to failed sealant at the glass-to-frame or frame-to-wall joints. We find the joint that’s letting water in and renew it and tell you plainly if the cause is something else. We work on rooflights, shower screens and glass-to-glass joints, and people most often call us about failed sealant around rooflight glass and mouldy sealant around glass panels.
Around Knowle, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
There’s a 12-month guarantee on every job.
- Place
- Knowle (PO17)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Glazing silicone in Knowle: local notes
London and the South East are among the drier parts of the UK, 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 Orchard Lea Infant School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Fareham station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Knowle is about 2 miles north of Fareham, in Hampshire. For glazing silicone in and around Knowle, please ring 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Hampshire. Knowle is one of 683 towns and villages in Hampshire we cover for glazing silicone. You can also see our page for Portsmouth, about 7 miles away.
All of PO17 is within our area for glazing silicone. Local streets include Serotine Close, Boundary Walk and Park Approach. We also cover the places around Knowle: Funtley (1 mile south), Tapnage (1 mile north-west), Heathfield (2 miles south), Segensworth (2 miles west) and Titchfield Park (2 miles south-west). Larger places within reach include Winchester (13 miles north), Gosport (6 miles south-east), Havant (10 miles east), Eastleigh (9 miles north-west), Horndean (9 miles east) and Totton (13 miles west).
What’s near Knowle
We work in homes and buildings around The Miners Arms and The Henry Cort Community College. Knowle’s nearest station is Fareham station, about 2 miles south. Other landmarks nearby include Portchester Castle (4.9 miles south-east) and Knowle Hospital (under half a mile north-east). The countryside around Knowle includes Portsdown Hill and Swanwick Lakes.
What we’re called out for in Knowle
Heat and cold make glass and frames move at different rates. In time, the sealant splits or pulls away.
Any of these means the joints need attention:
- Conservatory leaks at frame and glazing joints
- Drips on the inside of a conservatory window
- Shower screens leaking along the wall or tray
- Cracked silicone between glass panels
Homes close to Church of St Francis include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
What to look for in a quote
- What insurance they hold
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
- What preparation is included
How the job changes by surface
Glass-to-glass joints
These joints are on show, so we take care to leave a neat bead.
Rooflights
A rooflight faces rain and sun from above. Its sealant ages faster than vertical joints.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours, depending on how many joints need doing, and the area is left clean. Somewhere as small as Knowle, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by finding the leak and making sure sealant is the cause.
- We cut out the failed silicone, taking care of the glass and frame.
- The glass and frame are cleaned and degreased.
- Glazing silicone suited to the joint is applied and tooled.
- The finished joints are checked and, where it’s safe, tested with water.
How to prepare
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
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Other services in Knowle
Quotes for glazing silicone in Knowle
Every job gets its own quote. These are the things that affect it:
- The size of the job
- The type of sealant required
- Working hours on commercial sites
- The number of rooms or windows
No two jobs are quite the same, so we quote each one individually. 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.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Where the job is, and your postcode
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Landlords, agents and businesses in Knowle
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Clear the conservatory gutters regularly
- Keep scrapers and blades away from the silicone
- Inspect the sealant on glazing annually
- Squeegee the shower screen after each use
Squeegee a shower screen after each shower and let the room air. It helps stop mould getting into the silicone.
Cracked glazing silicone means the joint has failed. Resealing now is a small job compared with fixing water damage later.
Your questions about glazing silicone in Knowle
Will you come out to Knowle?
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 cover Knowle for glazing silicone?
Yes, Knowle is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Why not top up the existing silicone?
A top-up rarely holds. The new bead can’t grip the old one so we take it all out and start clean.
Do you work for letting agents?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or email us.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.