Isle of Wight · England
Glazing & conservatory sealant in Newport, Isle of Wight
Glazing silicone across Newport and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Failed sealant around rooflight glass
- Drips on the inside of a conservatory window
- Black or yellowed silicone on glass joints
Glazing silicone in Newport, done properly
A frameless shower screen depends on its silicone. Leaks normally come from the wall joint or the tray joint and both get fresh anti-fungal silicone. Typical jobs include glass-to-glass joints that have split and leaks from the base of a shower screen, on conservatory frames, glass-to-frame joints and glass balustrade bases.
Newport 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.
All our work comes with our 12-month guarantee, wherever you are in the Isle of Wight.
- Location
- Newport (PO30)
- Wider area
- Isle of Wight
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for most jobs. Parking in a town like Newport is normally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- New glazing silicone goes in and is finished neatly.
- The joints are checked before we leave.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
Why act early in Newport
Dealing with a leaking shower screen early protects the floor and ceiling. A small leak can reach the floor below before it shows. In Newport, as anywhere, most leaks start as a small gap in a joint, and early is when they’re cheapest and quickest to sort.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why us?
- A choice of colours where the product allows
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
- Old sealant always removed completely
Read our cost guide and what customers say.
FAQs for Newport
Can you do glazing silicone in Newport?
Yes, Newport is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Is glazing silicone in Newport guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Where are you based?
Mr Mastic is based in Crawley. We cover Newport and the rest of the Isle of Wight, along with the rest of our area.
I rent my home. Can I book you?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.
Are you insured?
Yes. We’re fully insured for domestic and commercial work.
Is it possible to redo the silicone on a shower screen?
Yes, we do these often. The screen is resealed with anti-fungal silicone made for wet areas.
What else we do in Newport
Newport homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Carisbrooke Castle (about 1 mile south-west) nearby, there’s older building stock in the area around Newport as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Nine Acres Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Carisbrooke Castle, about 1 mile south-west, is one of the historic houses in the wider area around Newport.
Newport is about 10 miles south-west of Gosport, in the Isle of Wight. Whether you’re in the middle of Newport or further out, we cover glazing silicone for every kind of property, from flats and houses to offices and hotels. 125 places in the Isle of Wight are on our list. For nearby work, see our Portsmouth page (12 miles or so).
Work in PO30 is quoted and booked the same way as anywhere else. Whether your property is on High Street, Red Fox Square and Drill Hall Road or anywhere close by, our applicators can take on the job. Main roads around Newport include the A3020 and A3054, which makes travel easy. Nearby, we also carry out glazing silicone in Shide (1 mile south-east), Blackwater (2 miles south), Downend (2 miles east), Merstone (3 miles south-east) and Rookley (3 miles south). Within a short drive, we also cover Ryde (6 miles east), Cowes (4 miles north), Sandown (7 miles south-east), Shanklin (7 miles south-east), Ventnor (8 miles south-east) and East Cowes (4 miles north). Newport is among the bigger towns we cover in the Isle of Wight. Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Near you in Newport
We work in homes and buildings around Seaclose Park, Castle Inn and Christ The King College and the streets around them. Other landmarks nearby include Carisbrooke Castle (1 mile south-west) and St Mary's Hospital (0.8 miles north). Green spaces nearby include Briddlesford Nature Reserve and Mill Hill.
How we quote for glazing silicone
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The size of the job
- The product the joint needs
- Access and height
- How many areas need sealing
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- A sagging or failing conservatory roof
- A sealed unit that has misted inside
- Water coming through the roof rather than a sealant joint
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Newport
- Rooflights
- Conservatory frames
- Glass balustrade bases
- Glass-to-glass joints
- Glass-to-frame joints
- Shower screens
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Wipe the screen down after showering
- Check the silicone on glass every year or so
- Open vents or windows to let moisture out
- Keep conservatory gutters clear of leaves
Avoid scraping near the new silicone when cleaning the glass. A soft cloth or sponge is best.
Shower screen leaks can go unnoticed. Water can soak into the floor or reach the room below long before you see it.
Can I do it myself?
If you do try it yourself, take your time over the 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 heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How the job changes 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.
Shower screens
Black or peeling silicone on a screen lets water out. Cutting it out and resealing fixes it.