Isle of Wight · England
Shide Window Mastic
Mastic around window and door frames, sills and patio doors for Shide, backed by a 12-month guarantee. Call for a quick quote.
- Damp patches on the reveal after heavy rain
- A bead that does not match the frame
- Black, perished sealant on frames
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Window mastic for homes and businesses in Shide
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. If you are dealing with sealant in the wrong colour for the frame and draughty joints inside around the window, we can put it right, whatever the surface.
In a smaller place like Shide, some walls face open ground and catch the full force of the weather. That’s hard on the mastic around frames and sills.
Our work is backed for twelve months.
- Location
- Shide (PO30)
- Wider area
- Isle of Wight
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What else we do in Shide
What happens if it’s left?
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. In a smaller place like Shide, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just 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. Your quote takes all of that into account.
Why Shide clients choose us
- White, clear, grey or coloured to suit, where the product allows
- 4.9 on Google from 180+ five-star reviews
- Colour agreed with you before we start
- An ARBOMaster approved applicator
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Damp problems in the wall away from the window
- A sash or casement that won’t close properly
- Draughts through the window seals rather than the frame
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Patio & French doors
- Window sills
- Timber windows & doors
- uPVC windows
- Composite doors
- Aluminium frames
FAQs for Shide
Can you do window mastic in Shide?
Yes. We work across London and the South East, and Shide is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
What guarantee comes with window mastic in Shide?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Can you do the inside joint as well?
Yes. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Do you have insurance?
Yes. Mr Mastic is 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. After that, simply ring 0345 464 0079 or send us an email.
Can resealing stop a draught around my window?
In many cases. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of frames, longer for a whole house from start to finish. In a smaller place like Shide, 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.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.
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Landlord and commercial work in Shide
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What window mastic looks like in Shide
Historic houses like Carisbrooke Castle (about 1 mile west) are a reminder that the area around Shide has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
Schools such as Nine Acres Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Shide is about 1 mile south-east of Newport, in the Isle of Wight. Across the PO30 area, we can carry out window mastic at your property. Across the Isle of Wight, we cover 125 places, and Shide is one of them. For nearby work, see our Portsmouth page.
We cover every part of PO30 for window mastic and the streets around it. Whether your property is on Pan Lane, Ash Road and Dairy Lane or anywhere close by, our applicators can take on the job. Being close to the A3020, Shide is simple for us to get to for window mastic. Close by, we work in Newport (1 mile north-west), Blackwater (1 mile south), Downend (2 miles east), Merstone (3 miles south-east) and Rookley (3 miles south). We also work in nearby towns such as Ryde (6 miles east), Cowes (5 miles north), Sandown (6 miles south-east), Shanklin (7 miles south-east), Ventnor (8 miles south-east) and East Cowes (4 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Around Shide
We work in homes and buildings around Christ The King College, The Cranbourne Arms Public House and Island Innovation VI Form Campus, among other places. Well-known places in the area include St Mary's Hospital (1.3 miles north) and Carisbrooke Castle (1 mile west). Not far away are Mill Hill and Briddlesford Nature Reserve.
When to call us in Shide
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Signs it’s time to call us include:
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Untidy mastic left by window fitters
Homes close to Church of St. John the Baptist include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- When the joint can take water or movement
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- Which colour the sealant will be
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Air rooms to keep condensation down around windows
- Repaint timber before it’s bare
- Paint up to the joint, not over it
- Make sure the drainage slots aren’t blocked
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.