West Sussex · England
Sand mastic for sash & case windows in Bilsham, West Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Bilsham, backed by a 12-month guarantee. Call for a quick quote.
- Cracked mastic round a front door frame
- Wind and rain getting in round a sash window
- Gaps between timber frames and stone or brick
Bilsham: your questions answered
Will you come out to Bilsham?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Barnham station?
Yes. We work for landlords and agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Should I use sand mastic or silicone?
We’ll talk it through with you. Sand mastic suits many period homes and newer frames suit modern sealant.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Sand mastic in Bilsham, done properly
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. If you have wind and rain getting in round a sash window and old cement repairs round a window that have failed, we can help, on brick reveals, tenement windows and period & listed homes alike.
Around Bilsham, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Bilsham (BN18)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Around Bilsham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why book with us
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
- Fully insured
Take a look at how sealant jobs are priced and what customers say.
Bilsham homes and the weather
Bilsham is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Yapton CE Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Barnham station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Bilsham is about 3 miles north-east of Bognor Regis, in West Sussex. From the centre of Bilsham to the outskirts, we cover sand mastic for every kind of property. Bilsham is one of 371 places in West Sussex where we work. Our Portsmouth page covers work nearby, about 20 miles away.
Work in BN18 works the same way as everywhere else we cover. If you are just outside Bilsham, we cover Yapton (1 mile north), Flansham (1 mile west), Barnham (2 miles north-west), West Barnham (2 miles north-west) and Lidsey (2 miles west). We also work in nearby towns such as Worthing (10 miles east), Bognor Regis (3 miles south-west), Chichester (7 miles west), Selsey (9 miles south-west), Littlehampton (4 miles east) and Shoreham-by-Sea (15 miles east).
Landmarks near Bilsham
Locally, jobs take us to homes and businesses close to Felpham Community College and the streets around them. Bilsham’s nearest station is Barnham station, roughly 1.8 miles north-west. A little further out are Bognor Regis Museum (3.3 miles south-west) and Bognor Regis War Memorial Hospital (2.8 miles south-west). Not far away are WWT Arundel.
How the visit works
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Bilsham, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Advice
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Check with your local planning authority if your home is listed
- Make sure water runs off the sill
- Go gently near the mastic when preparing windows
- Get any rot dealt with first
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
Do you need sand mastic in Bilsham?
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
Any of these means the joints need attention:
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
- Weathered mastic on the most exposed windows
In the older streets around Bilsham Chapel, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before booking
- How the surfaces are prepared before sealing
- The length of the guarantee
- Whether VAT is included
- How hidden problems are handled
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
When it isn’t the sealant
It helps to know what we can’t do too:
- Whether work needs listed building consent
- Broken panes
- Crumbling stone or brickwork round the window
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Bilsham
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Period & listed homes
- Sash and case windows
Towns and villages near Bilsham
Other services in Bilsham
Landlords, agents and businesses in Bilsham
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured.
For anyone letting property in or around Bilsham, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.