Isle of Wight · England
Ventnor Sand Mastic
Our applicators work in Ventnor on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Old cement repairs round a window that have failed
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
When something else is needed
A few problems are outside what sealant work can do:
- Damaged stone surrounds
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
- Brick reveals
About our sand mastic in Ventnor
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you’re dealing with gaps where the frame meets the masonry and window mastic to renew ahead of painting, we can help, on sash and case windows, stone surrounds and brick reveals alike.
Homes around Ventnor range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Where
- Ventnor (PO38)
- Wider area
- Isle of Wight
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
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 fails, we can still redo it.
What happens if it’s left?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. In an older home around Ventnor, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why choose Mr Mastic in Ventnor
- Fully insured
- We leave the area clean and tidy
- Over 20 years’ experience
- Sanitary silicone with an anti-fungal additive in wet areas
Read our cost guide and customer reviews.
How to look after the new joints
After the cure time, these simple habits help:
- Clear gutters so water doesn’t pour onto the windows
- Keep modern sealant off the mastic
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Windows and doors in Ventnor
Ventnor is close to 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 older windows and doors, 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.
For site and facilities teams at buildings such as St Catherine's School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near St Catherine's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Shanklin station? Then any sash windows need sound mastic to keep draughts and rain out.
Ventnor is about 8 miles south-east of Newport, in the Isle of Wight. Across the PO38 area, we can carry out sand mastic at your property. Our area takes in 125 places across the Isle of Wight. Portsmouth is on our list too, about 16 miles from Ventnor.
We cover every part of PO38 for sand mastic and the streets around it. If you need sand mastic at a property on Old Station Road, Market Street and High Street or a nearby road, our applicators can take on the job. You will find Ventnor on the A3055 and B3327, so it’s easy for us to get to. If you are just outside Ventnor, we cover Steephill (1 mile south-west), Bonchurch (1 mile east), St Lawrence (1 mile west), Wroxall (2 miles north) and Luccombe Village (2 miles north-east). We also work in nearby towns such as Newport (8 miles north-west), Ryde (9 miles north), Cowes (12 miles north), Sandown (5 miles north-east), Shanklin (3 miles north-east) and East Cowes (11 miles north). Ventnor is one of the larger places 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 Ventnor
Around Ventnor, our work takes us to homes and buildings near St Francis Catholic and Church of England Primary Academy and The Blenheim pub, among other places. For rail, the closest station is Shanklin station, roughly 3 miles north-east. Other landmarks nearby include Arthur Webster Memorial Hospital for Children (3 miles north-east) and Longshoremans Museum (within half a mile south). Green spaces nearby include Alverstone Mead and St Boniface Down.
How it works
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job generally takes anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. In a smaller place like Ventnor, 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.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
- Keep children and pets away from the work area
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
Related advice
Landlords, agents and businesses in Ventnor
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Surface by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Other services in Ventnor
Your questions about sand mastic in Ventnor
Will you come out to Ventnor?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Ventnor?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator.
What does sand mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Do you offer different sealant colours?
Most of the time, yes. We will explain which colours are available and agree one before any work starts.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can you quote for more than one area?
Yes. Just list everything you need and you will get one quote.