Isle of Wight · England
Sand Mastic in Apse Heath
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Apse Heath. Fully insured, ARBOMaster approved and guaranteed for a year.
- Open joints round the window box
- Failed mastic on an exposed elevation
- Draughts and rain around sash boxes
Different surfaces, different methods
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
About our sand mastic in Apse Heath
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. We work on stone surrounds, tenement windows and brick reveals, and the jobs we see most are crumbling sand mastic round a window and tired mastic found when preparing windows for paint.
Homes in small places like Apse Heath often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
You get a one-year guarantee, the same in Apse Heath as everywhere else we work.

- Place
- Apse Heath (PO36)
- Region
- Isle of Wight
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Apse Heath can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why Apse Heath customers choose us
- 20+ years of sealant experience
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
Read what affects the cost and customer reviews.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Frames and glazing around Apse Heath
Apse Heath 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 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 landlords with property near Shanklin station, older sash windows in a rental need their mastic kept sound to keep the weather out. Haseley Manor, about 1.8 miles north-west, is one of the historic houses in the wider area around Apse Heath.
Apse Heath is about 6 miles south-east of Newport, in the Isle of Wight. We provide sand mastic to homes and businesses in Apse Heath and nearby, as part of our work across the Isle of Wight. Apse Heath is one of 125 towns and villages in the Isle of Wight where we work for sand mastic. Portsmouth is on our list too, around 13 miles away.
All of PO36 is covered for sand mastic. You’ll find streets such as Ventnor Road, The Brambles and Newport Road, all of which we cover. Other places close to Apse Heath include Princelett (1 mile south-west), Branstone (1 mile north-west), Winford (1 mile north), Hale Common (1 mile north-west) and Whiteley Bank (1 mile south-west). Larger places within reach include Newport (6 miles north-west), Ryde (6 miles north), Cowes (9 miles north-west), Ventnor (3 miles south), East Cowes (8 miles north-west) and Oakfield (6 miles north). If you’re somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Around Apse Heath
The nearest railway station is Shanklin station, roughly 1.3 miles south-east. Other landmarks nearby include Wight Aviation Museum (1 mile north-east) and Sandown Castle (2.6 miles east). For a walk, there’s Stenbury Down and Alverstone Mead.
Landlords, agents and businesses in Apse Heath
Housing providers, facilities teams and property managers book us too in Apse Heath and across the Isle of Wight. Several sites can be quoted together.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Your questions about sand mastic in Apse Heath
Is Apse Heath within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is sand mastic in a coastal place like Apse Heath any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we will talk you through it.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Towns and villages near Apse Heath
More services for Apse Heath
When to call us in Apse Heath
Rain on the window surround works into any crack and pushes it out. Exposed elevations usually fail first.
Common reasons people contact us include:
- Cement or filler used on old window joints that has cracked
- Mastic that needs renewing before redecorating
- A silicone bead on a sash window that spoils the look
- Cracked mastic round a front door frame
Managing a site like Sandown Bay Academy? Then its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Whether they seal over old material or remove it
What we do, step by step
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Apse Heath, 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.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- 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.
Before we arrive
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
- Mention if the joints have been sealed before
Get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Ask us before painting near the mastic
- Get any rot dealt with first
- Take care around the mastic when scraping paint
- Check with your local planning authority if your home is listed
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
