Hampshire · England
Havant Glazing Silicone
We cover Havant for glazing silicone for conservatories, rooflights, glass panels and shower screens. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- A quick top-up bead that didn’t last
- Conservatory leaks at frame and glazing joints
- Cracked silicone between glass panels
About our glazing silicone in Havant
Cracked, stained or lifting silicone on glass spoils the look and lets water in. It comes off cleanly, without marking the glass and reseal the joint. Typical jobs include a quick top-up bead that didn’t last and failed sealant around rooflight glass, across glass-to-glass joints, rooflights and glass balustrade bases.
Havant mixes older streets, where windows have often been replaced, with newer estates fitted with uPVC. In every case, the joint between frame and wall is what keeps water out.
You’re covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or send us an email.
- Where
- Havant (PO9, PO11, PO7)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Frames that have decayed or split
- A sealed unit that has misted inside
- Cracked or broken glass
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Havant
- Conservatory frames
- Rooflights
- Glass-to-frame joints
- Glass balustrade bases
- Glass-to-glass joints
- Shower screens
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.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What affects the quote in Havant
Your quote is based on your job. We look at:
- The number of rooms or windows
- Any mould that needs treating
- How easy the joints are to reach
- The product the joint needs
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
When you contact us, these details help:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- The address or postcode of the job
- What’s wrong with the joints now
We quote each job on its own. Just call 0345 464 0079 or send us an email with the details.
Looking after it afterwards
So the new joints stay in good condition:
- Clean glass with a mild cleaner and a soft cloth
- Inspect the sealant on glazing annually
- Avoid strong solvents on or near the sealant
- Do not leave a drip for the next storm
Squeegee a shower screen after each shower and let the room air. That slows mould growth on the bead.
A small conservatory leak soon spreads. Water runs along frames and down walls, so get it looked at when you first see it.
Why deal with it now?
Replacing a conservatory roof is major work. If the leak is a failed sealant joint, resealing is far simpler. If the roof is the problem, we’ll say so. Gaps in sealant and mould in the bead never get better on their own, and in a busy home in Havant they get worse with every use. Replacing the sealant now is the simplest fix.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why Havant customers choose us
- A sealant colour to suit the surroundings
- 180+ five-star Google reviews
- Every job guaranteed for a year
- Any old sealant cut out fully, not covered over
See our cost guide or our reviews.
More services for Havant
Common questions in Havant
Can you help a landlord with a rental near Havant station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Do you cover Havant for glazing silicone?
Yes. Our work covers London and the South East, and Havant is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Will resealing stop my conservatory leaking?
Often, if the leak is at a sealant joint. We trace the leak first, so you know what you are paying for.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Glazing silicone in Havant: local notes
Havant is within about 2 miles of 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Havant station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows. Homes close to 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.
Havant is about 18 miles east of Southampton, in Hampshire. Across the PO9 area, we can carry out glazing silicone at your property. Havant is one of 683 places in Hampshire where we work.
Every address in PO9, PO11 and PO7 is covered for glazing silicone, from the main roads to the quietest streets. Whether your property is on Colemore Square, Market Parade and Juniper Square or anywhere close by, we can help. Main roads around Havant include the A27 and A3(M), so getting to you is simple. We also cover Leigh Park (1 mile north), Denvilles (1 mile south-east), Durrants (2 miles north-east), Langstone (2 miles south) and Warblington (2 miles south-east). We also work in nearby towns such as Gosport (8 miles south-west), Fareham (9 miles west), Horndean (3 miles north), Hedge End (14 miles west), Petersfield (10 miles north) and Locks Heath (12 miles west). As one of the bigger places in Hampshire, Havant has homes, rented property and businesses of every kind.
Near you in Havant
Around Havant, our work takes us to homes and buildings near The Perseverance pub, St Albans Church and Havant College. The closest station to Havant is Havant station, about 0.6 miles south. Other landmarks nearby include Havant War Memorial Hospital (0.6 miles south) and Havant Museum (0.9 miles south-east). The countryside around Havant includes Southmoor Nature Reserve.
Do you need glazing silicone in Havant?
Silicone won’t bond to a dirty surface. If the glass and frame weren’t cleaned properly, the bead can peel away early.
The most common problems we see are:
- Water tracking down the inner face of the glass
- Water getting into a conservatory at the joints
- Leaking glazing joints on a rooflight
- Failed joints on frameless glass
Schools such as Trosnant Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Which sealant they’ll use, and why
- What happens if the job turns out different
- The length of the guarantee
- How long to leave it before use
What we do, step by step
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before work begins. The work normally takes anything from an hour or two to most of a day, depending on the size of the job. For a job in Havant, we need access to where the work is and somewhere nearby to park. If the job is outside, mention gates, side access and anything above ground floor.
- First, we trace the leak and check it’s coming through 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.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
How to prepare
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or email us.