West Sussex · England
Sand mastic for sash & case windows in Aldingbourne, West Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Aldingbourne, with a one-year guarantee on every job. Call for a quick quote.
- Mastic round period door frames that has failed
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
Sand mastic for homes and businesses in Aldingbourne
Across Aldingbourne, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you’re dealing with draughty sash windows at the surround and weathered mastic on the most exposed windows, we can help.
Somewhere as small as Aldingbourne, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Big or small, it’s backed by our 12-month guarantee in Aldingbourne and across West Sussex.
- Where
- Aldingbourne (PO20)
- Region
- West Sussex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Signs you need sand mastic in Aldingbourne
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
The most common problems we see are:
- Crumbling sand mastic round a window
- Draughts and rain around sash boxes
- Open joints round the window box
- Old cement repairs round a window that have failed
For landlords with property near Barnham station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- Whether you can choose the colour
- What guarantee comes with the work
- Whether all the old sealant comes out first
- When the joint can take water or movement
Looking after it afterwards
So the new joints stay in good condition:
- Check the mastic when you check the paintwork
- Ask a joiner to look at soft timber first
- Avoid patching sand mastic with silicone
- Find out about consent before window work on a listed home
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
What sand mastic looks like in Aldingbourne
With historic houses such as Goodwood House (about 3.2 miles north-west) nearby, there’s older building stock in the area around Aldingbourne as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as The Parish Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Aldingbourne Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Aldingbourne is about 3 miles north of Bognor Regis, in West Sussex. Our applicators cover sand mastic for homes and businesses in Aldingbourne. Our area takes in 371 places across West Sussex, large and small. There’s also a page for Portsmouth, about 17 miles away.
Every address in PO20 is covered for sand mastic, from the main roads to the quietest streets. You’ll find streets such as Hook Lane and Park Lane, all of which we cover. Nearby, we also carry out sand mastic in Nyton (1 mile east), Norton (1 mile north), Westergate (1 mile east), East Hampnett (1 mile north-west) and Crockerhill (1 mile north). Larger places within reach include Worthing (13 miles east), Bognor Regis (3 miles south), Chichester (4 miles west), Selsey (9 miles south-west), Littlehampton (7 miles east) and Emsworth (11 miles west).
Landmarks near Aldingbourne
We work in homes and buildings around Ormiston Six Villages Academy and the streets around them. Aldingbourne’s nearest station is Barnham station, about 2.1 miles east of the centre. Nearby you’ll also find The Chichester City Museum (3.9 miles west) and Bognor Regis War Memorial Hospital (3.3 miles south).
How the job changes by surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Towns and villages near Aldingbourne
Also in Aldingbourne
How we quote for sand mastic
The price is agreed before any work begins. It takes into account:
- Which sealant suits the joint
- Any mould that needs treating
- Working hours on commercial sites
- How easy the joints are to reach
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Whether it’s a home or a business
If you are in Aldingbourne and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
FAQs for Aldingbourne
Will you come out to Aldingbourne?
Yes. Aldingbourne is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Barnham station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
How long does sand mastic take to go off?
Not straight away. It skins first and hardens fully later, and we’ll tell you what to expect.
Do you guarantee sand mastic work?
Our 12-month guarantee applies on every job.
Can you seal over the old sealant?
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.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Work for landlords, hotels and businesses
For anyone letting property in or around Aldingbourne, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
The process
When we arrive, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Aldingbourne, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
- Move anything stored near the joints
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
Advice
When something else is needed
Sealant isn’t the answer to every problem, and we will tell you before we start. Sealant will not put right:
- Damaged stone surrounds
- Decayed frames that need repair
- Decisions on consent for listed homes
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Tenement windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows