Isle of Wight · England
Window Mastic in Hunny Hill
We cover Hunny Hill for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Black, perished sealant on frames
- Gaps between the frame and the inside reveal
- Cracked or shrunken mastic around the frame
Looking after it afterwards
After the cure time, these simple habits help:
- Keep drainage slots and sill grooves clear
- Check the mastic once a year
- Do not paint over the silicone
- Wash the frames with mild soapy water
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
Window mastic for homes and businesses in Hunny Hill
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. Typical jobs include white mastic on grey or black frames and mastic that’s falling out in pieces, on uPVC windows, timber windows & doors and patio & French doors.
In smaller places like Hunny Hill, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
A one-year guarantee comes as standard, so you’re covered after we’ve gone.
- Location
- Hunny Hill (PO30, PO31, PO41)
- Region
- Isle of Wight
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Hunny Hill
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. With historic houses such as Carisbrooke Castle (about 1.3 miles south-west) nearby, there’s older building stock in the area around Hunny Hill as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Hunnyhill Primary School, the mastic around its windows and doors needs looking after like any other building’s. Carisbrooke Castle, about 1.3 miles south-west, is one of the historic houses in the wider area around Hunny Hill.
Hunny Hill is about 1 mile north of Newport, in the Isle of Wight. Whether you’re in the middle of Hunny Hill or further out, we cover window mastic for every kind of property. Hunny Hill is one of 125 places in the Isle of Wight where we work for window mastic. Portsmouth is on our list too, about 12 miles from Hunny Hill.
Postcode districts we cover here for window mastic: PO30, PO31 and PO41. If you need window mastic at a property on Foxes Road, Chain Lane and Wilver Road or a nearby road, our applicators can take on the job. With the A3020 and A3054 close by, Hunny Hill is easy for our applicators to reach for window mastic. Neighbouring places we cover for window mastic include Parkhurst (1 mile north), Forest Side (1 mile west), Noke Common (1 mile north), Northwood (3 miles north) and Porchfield (3 miles west). 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 (9 miles south-east) and East Cowes (3 miles north). As one of the bigger places in the Isle of Wight, Hunny Hill has homes, rented property and businesses of every kind. For island and remote addresses, the job takes a little more planning.
Landmarks near Hunny Hill
In Hunny Hill, that means homes and buildings near Seaclose Park, Carisbrooke College and The Man in the Moon pub, among other places. Other landmarks nearby include Carisbrooke Castle (1.3 miles south-west) and Isle of Wight Music Museum (less than half a mile south-east). Green spaces nearby include Mill Hill and Briddlesford Nature Reserve.
What the job involves on each surface
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it, where a rigid one would crack.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Leave it or put it right?
The work is quick compared with the damage it prevents: it takes most of a day for a typical house, less for a few frames. Wait for damp to appear and there may be plaster and decorating to sort out too. Homes in smaller places like Hunny Hill can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- 4.9 on Google from 180+ five-star reviews
- Domestic, commercial and hotel work
- Neat joints and a tidy finish
- You choose the colour before work begins
Take a look at what affects the cost or customer reviews.
Places near Hunny Hill
More services for Hunny Hill
Common questions in Hunny Hill
Can you do window mastic in Hunny Hill?
Yes. We work across London and the South East, and Hunny Hill is part of that. You can call 0345 464 0079 or email us and let us know what needs doing.
What guarantee comes with window mastic in Hunny Hill?
All our work, in Hunny Hill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Can new window sealant be painted?
Silicone generally will not take paint. Let us know beforehand, and we will use a paintable product where it suits.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
What happens on the day
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. In a smaller place like Hunny Hill, 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 confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Move anything stored near the joints
Getting a quote
We quote each job on its own. Simply ring 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Condensation trapped between the panes
- Damp coming through the wall itself rather than the frame joint
- A sash or casement that won’t close properly
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Patio & French doors
- Timber windows & doors
- Composite doors
- Aluminium frames
- uPVC windows
- Window sills
Quotes for window mastic in Hunny Hill
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- When we can work, for business premises
- The type of sealant required
- Whether the work is at height
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear price before work begins.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The rough size of the job
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Photos by email, if that is easy
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.