Isle of Wight · England
Brighstone Window Mastic
We cover Brighstone for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Whistling draughts around closed windows
- Gaps where the sill meets the wall
- Draughty joints inside around the window
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In a small place like Brighstone, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear price for the lot.
Why choose Mr Mastic in Brighstone
- Any old sealant cut out fully, not covered over
- Every job guaranteed for a year
- A choice of colours where the product allows
- You choose the colour before work begins
Take a look at how sealant jobs are priced or our reviews.
Window mastic for homes and businesses in Brighstone
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before we start. To get one, call 0345 464 0079 or drop us an email with the number of frames and any access details. If you have cracked or shrunken mastic around the frame and leaking joints at the ends of sills, we can help, whatever the surface.
Homes in small places like Brighstone 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.
Every job comes with our one-year guarantee, wherever you are in the Isle of Wight.
- Place
- Brighstone (PO30)
- Region
- Isle of Wight
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much there is to do
- The old material and how stubborn it is
- How easy the joints are to reach
- Which sealant suits the joint
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
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
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- Where the job is, and your postcode
If you’re in Brighstone and need window mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Your questions about window mastic in Brighstone
Will you come out to Brighstone?
Yes. Brighstone is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does living near the coast affect window mastic in Brighstone?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Are you insured?
Yes. We are fully insured for domestic and commercial work.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you work on first-floor windows?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across the Isle of Wight.
Different surfaces, different methods
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
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 look for the cause first.
Window mastic in Brighstone: local notes
Brighstone is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like Mottistone Manor (about 1.4 miles north-west) are a reminder that the area around Brighstone has older buildings as well as new. 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 Brighstone Church of England Aided Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Brighstone is about 6 miles south-west of Newport, in the Isle of Wight. Our applicators cover window mastic for householders, landlords and businesses in Brighstone and the surrounding area. 125 places in the Isle of Wight are on our list, from the larger towns to small villages. There’s also a page for Portsmouth, roughly 18 miles from Brighstone.
Postcode districts we cover here for window mastic: PO30. You’ll find streets such as Main Road, Meadows Close and Wilberforce Road. Brighstone is on the B3399, so it’s easy for us to get to. We also cover the places around Brighstone: Moortown (1 mile north), Thorncross (1 mile south-east), Shorwell (2 miles east), Little Atherfield (3 miles south-east) and Atherfield Green (3 miles south-east). We also work in nearby towns such as Newport (6 miles north-east), Ryde (12 miles north-east), Cowes (9 miles north-east), Sandown (10 miles east), Shanklin (10 miles east) and Ventnor (9 miles east). If you are somewhere remote, a little more planning is needed, so let us know when you get in touch.
Around Brighstone
Locally, jobs take us to homes and businesses close to The Three Bishops pub and the streets around them. Other landmarks nearby include Carisbrooke Castle (4.8 miles north-east) and Whitecroft Hospital (4.7 miles north-east). Open spaces near Brighstone include Brighstone Down.
Honest limits
New sealant cannot fix everything, and we’ll tell you before work begins. Sealant won’t put right:
- Condensation trapped between the panes
- A sash or casement that won’t close properly
- Worn gaskets, brush seals or a door that has dropped
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Where we work in Brighstone
- Patio & French doors
- Timber windows & doors
- Composite doors
- Window sills
- Aluminium frames
- uPVC windows
Nearby places to Brighstone
Other services in Brighstone
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What we’re called out for in Brighstone
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Any of these means the joints need attention:
- Rain getting in at the frame or under the sill
- Hard, cracked sealant around windows
- Black, perished sealant on frames
- Untidy mastic left by window fitters
Homes close to St. Mary's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- Who does the work, and how experienced they are
- What happens if they find a problem under the old sealant
- What preparation is included
- Which colour the sealant will be
What we do, step by step
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. In a small place like Brighstone, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.