Isle of Wight · England
Sand mastic for sash & case windows in Newchurch, Isle of Wight
Window and door surrounds in Newchurch need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
Sand mastic in Newchurch, done properly
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. Common call-outs are for cement or filler used on old window joints that has cracked and mastic round period door frames that has failed, on sash and case windows, brick reveals and timber door frames.
Mastic can only go onto a dry, clean joint, so window work in Newchurch is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, large or small.
- Location
- Newchurch (PO36)
- Wider area
- Isle of Wight
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Common problems we fix in Newchurch
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber and we normally remove them.
Common reasons people contact us are:
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
- Mastic round period door frames that has failed
- Old cement repairs round a window that have failed
In the older streets around All Saints' Church, 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
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- Whether VAT is included
- How much experience the applicator has
What happens on the day
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. Expect the work to take anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. For a village or hamlet like Newchurch, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Try not to wet indoor joints just before the visit
Getting a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Read more
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Sashes that need overhauling
- Decayed frames that need repair
- Damaged stone surrounds
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Newchurch
- Brick reveals
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows
What affects the quote in Newchurch
Jobs vary more than people expect. What affects the quote:
- Whether there’s mould to deal with
- Any working-time requirements on site
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- What’s wrong with the joints now
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.
Your questions about sand mastic in Newchurch
Does living near the coast affect sand mastic in Newchurch?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you cover smaller places like Newchurch?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
What’s sand mastic made of?
Sand plus a binder based on linseed oil. It’s applied by hand and finished to sit neatly against the masonry.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
How long will you be here?
Most jobs take anything from a few hours to a full day, depending on how many windows, including the preparation. Your quote will say how long we expect yours to take.
Can old silicone round a sash window be swapped for sand mastic?
Generally, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Should I try it myself first?
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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Also near Newchurch
Other services in Newchurch
Surface by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Frames and glazing around Newchurch
Newchurch is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Historic houses like Haseley Manor (about 0.8 miles west) are a reminder that the area around Newchurch has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Newchurch Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Sandown station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Newchurch is about 4 miles south-west of Ryde, in the Isle of Wight. Homes, rented property, offices and hotels in Newchurch is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Newchurch is one of 125 places in the Isle of Wight where we work. There’s also a page for Portsmouth, roughly 11 miles from Newchurch.
Work in PO36 works the same way as everywhere else we cover. If you need sand mastic at a property on High Street, Milestone Crescent and Palmer's Lane or a nearby road, our applicators can take on the job. Other places close to Newchurch include Winford (1 mile south), Branstone (1 mile south), Hale Common (1 mile south-west), Apse Heath (1 mile south) and Arreton (1 mile north-west). Larger places within reach include Newport (5 miles north-west), Ryde (4 miles north-east), Cowes (8 miles north-west), Shanklin (3 miles south-east), Ventnor (5 miles south) and East Cowes (7 miles north-west). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in Newchurch
In Newchurch, that means homes and buildings near Sandown Bay Academy and The Pointer Inn and the streets around them. The nearest railway station is Sandown station, roughly 2.1 miles east. Other landmarks nearby include Museum of Country And Agriculture (0.9 miles west) and Sandown Castle (2.7 miles east). Green spaces nearby include Alverstone Mead and Brading Down.
