Hampshire · England
Glazing & conservatory sealant in Dean, Hampshire
Glazing silicone across Dean and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Failed sealant around rooflight glass
- Water running down inside the glass
- Stained, discoloured glazing silicone
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Stick to mild cleaners on glass
- Run a squeegee over the glass when you are done
- Keep harsh solvents off the silicone
- Do not leave a drip for the next storm
Use mild cleaners on and around the silicone. Strong solvents can soften or mark it.
Damp patches, drips and condensation along a joint are worth checking. The cause may be sealant or another part, and we’ll tell you which.
How we handle glazing silicone in Dean
Frameless shower screens rely on sealant to keep water in. Leaks normally come from the wall joint or the tray joint and both get fresh anti-fungal silicone. We work on shower screens, rooflights and glass-to-frame joints, and common reasons people get in touch are water tracking down the inner face of the glass and sealant that was laid over old silicone and failed.
Around Dean, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
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
- Dean (SO32)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Glass-to-glass joints
Glass-to-glass joints depend entirely on the sealant. The bead needs to be tidy and fully bonded.
Conservatory frames
Leaks often start where the frame meets the wall. We cut out the old sealant and reseal.
Frames and glazing around Dean
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.
If you live in an older home near Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Bishops Waltham Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
Dean is about 6 miles north-east of Hedge End, in Hampshire. Every kind of property in Dean is covered for glazing silicone. The work is guaranteed for a year. Our Hampshire coverage runs to 683 places, Dean among them. Southampton is on our list too, around 9 miles away.
All of SO32 is within our area for glazing silicone, from the main roads to the quietest streets. Streets in the area include Dean Lane, Little Ashton Lane and Limekiln Lane, all of which we cover. We also cover The Hangers (1 mile east), Upper Swanmore (2 miles south-east), Swanmore (2 miles south), Hill Grove (2 miles south-east) and Droxford (3 miles east). Further out, we also cover Winchester (8 miles north-west), Gosport (12 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (8 miles south) and Horndean (9 miles south-east).
Near you in Dean
We work in homes and buildings around Swanmore College of Technology and the streets around them. The closest station to Dean is Botley station, about 4.6 miles south-west of the centre. A little further out are Bishop's Waltham Museum (1.4 miles south-west). Not far away are Bishops Waltham Branch LNR and Beacon Hill.
FAQs for Dean
Can you do glazing silicone in Dean?
Yes. We work across London and the South East, and Dean is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Dean?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Which silicone is used for glass joints?
A neutral-cure glazing silicone that suits the glass and frame. Shower screens get anti-fungal silicone.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Dean, along with the rest of our area.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Honest limits
A few problems are outside what sealant work can do:
- Failed flashing around a conservatory
- A roof that has moved or dropped
- A sealed unit that has misted inside
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Conservatory frames
- Shower screens
- Glass-to-glass joints
- Rooflights
- Glass balustrade bases
- Glass-to-frame joints
How we quote for glazing silicone
Jobs vary more than people expect. What affects the quote:
- The number of rooms or windows
- How easy the joints are to reach
- Whether there’s mould to deal with
- Which sealant suits the joint
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- A few photos by email, if you can
- If someone has resealed it before
- Whether it’s a home or a business
- Where the property is
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
What we do, step by step
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere as small as Dean, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We trace the leak and confirm it’s a sealant joint.
- 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
- Mention if the joints have been sealed before
- Clear the area around the work
- Mention any tricky access
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or send us an email.
Related advice
For landlords and businesses
If you manage several properties in or around Dean, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
What else we do in Dean
Do you need glazing silicone in Dean?
Sunlight breaks sealant down and roof joints get the most sun. It goes brittle, cracks and stops sticking to the glass and frame.
If you can see any of these, it’s time to have the joints looked at:
- Glass-to-glass joints that have split
- Rooflight joints letting water in
- Water running down inside the glass
- Sealant that was laid over old silicone and failed
Rented homes near Botley station change hands often, and leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
What your quote should include
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
- How hidden problems are handled
- Whether they seal over old material or remove it