Isle of Wight · England
Window & door mastic in Adgestone, Isle of Wight
Problem with your window and door frames in Adgestone? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Hard, cracked sealant around windows
- Leaking joints at the ends of sills
- Damp patches on the reveal after heavy rain
Questions from Adgestone
Do you work for landlords with property near Sandown station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you cover smaller places like Adgestone?
Yes, Adgestone is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you insured?
Yes. We’re fully insured.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Can I do it myself?
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.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How we handle window mastic in Adgestone
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. Common call-outs are for cracked internal joints between frame and plaster and rain getting in at the frame or under the sill, on uPVC windows, aluminium frames and window sills.
Homes in small places like Adgestone often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Big or small, it’s backed by our 12-month guarantee in Adgestone and across the Isle of Wight.
- Place
- Adgestone (PO36)
- Wider area
- Isle of Wight
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Adgestone
Other services in Adgestone
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. In a small place like Adgestone, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
Why book with us
- Arbo and Everbuild products
- Sanitary silicone with an anti-fungal additive in wet areas
- Experience in homes, commercial sites and hotels
- Sealant colour chosen to suit
Read what affects the cost and what customers say.
Frames and glazing around Adgestone
Adgestone 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 the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Sandown station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Managing a site like Brading Church of England Controlled Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Adgestone is about 4 miles south of Ryde, in the Isle of Wight. Whether you are in the middle of Adgestone or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 125 places across the Isle of Wight, large and small. For nearby work, see our Portsmouth page.
We cover every part of the PO36 postcode area for window mastic and the streets around it. If you need window mastic at a property on Upper Road, Lower Road and Lower Adgestone Road or anywhere close by, we can help. Other places close to Adgestone include Morton (1 mile east), Yarbridge (1 mile east), Brading (1 mile north-east), Alverstone (1 mile south-west) and Sandown (1 mile south). Further out, we also cover Newport (6 miles west), Ryde (4 miles north), Cowes (9 miles north-west), Shanklin (3 miles south), Ventnor (6 miles south) and East Cowes (8 miles north-west). If you are somewhere remote, a little more planning is needed.
Near you in Adgestone
Around Adgestone, our work takes us to homes and buildings near The Bay Church of England School and Sandown Bay Academy, among other places. The closest station to Adgestone is Sandown station, roughly 1.1 miles south. Well-known places in the area include Sandown Castle (1.3 miles south-east) and Brading Waxworks (1 mile north-east). Open spaces near Adgestone include Alverstone Mead and Brading Down.
How it works
On the day, we look over the joints with you first. We protect the surfaces around the joints before we start. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Adgestone, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
Getting a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Advice
Common problems we fix in Adgestone
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Any of these means the joints need attention:
- Draughts coming in around windows and doors
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
- Mastic that’s falling out in pieces
For an older house near a landmark such as Church of St. John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- What the cure time is
- Which sealant they’ll use, and why
- How the joint is cleaned and prepared
- How hidden problems are handled
Quotes for window mastic in Adgestone
Jobs vary more than people expect. The main factors:
- The number and length of the joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- How we’d reach the joints
- Pictures of the joints, sent by email
- The type of property
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details.
Different surfaces, different methods
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.