West Sussex · England
Sand Mastic in Lancing
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Lancing. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
About our sand mastic in Lancing
Silicone on a period window often looks wrong and does not suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you’re dealing with modern sealant on a period surround and draughts and rain around sash boxes, we can put it right, whatever the surface.
Houses in smaller places like Lancing can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
All our work is covered by our 12-month guarantee, wherever you are in West Sussex.
- Where
- Lancing (BN15)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Lancing
What else we do in Lancing
Frames and glazing around Lancing
Lancing is within about 1 mile 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. With historic houses such as Portslade Manor (about 4.6 miles east) nearby, there’s older building stock in the area around Lancing as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Lancing station, cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as The Globe Primary Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Lancing is about 3 miles east of Worthing, in West Sussex. Lancing gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across West Sussex, we cover 371 places, and Lancing is one of them. You can also see our page for Brighton, roughly 8 miles from Lancing.
Jobs for sand mastic in BN15 works the same way as everywhere else we cover. If you need sand mastic at a property on North Road, North Farm Road and Addison Close or a nearby road, we can help. You’ll find Lancing on the A2025, so it’s easy for us to get to. Neighbouring places we cover for sand mastic include Sompting (1 mile west), East Worthing (2 miles south-west), Broadwater (2 miles west), Offington (3 miles west) and Botolphs (3 miles north). We also work in nearby towns such as Worthing (3 miles west), Haywards Heath (15 miles north-east), Burgess Hill (12 miles north-east), Littlehampton (9 miles west), Rustington (8 miles west) and Storrington (8 miles north-west).
Near you in Lancing
Around Lancing, our work takes us to homes and buildings near Brooklands Park, Sompting Abbotts Preparatory School and The Railway pub and the streets around them. There’s a railway station in Lancing itself: Lancing station. Nearby you will also find Worthing Hospital (2 miles south-west) and Old Castle (3.1 miles west). Not far away are Lancing Ring and Widewater Lagoon.
How the job changes by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
How the visit works
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. Most jobs take anything from a few hours to a full day, depending on how many windows. Parking around Lancing is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
Getting a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
Common problems we fix in Lancing
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
Signs it’s time to call us include:
- Window mastic to renew ahead of painting
- Silicone on a period window that looks wrong
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
If you live in an older home near St. Michael & All Angels, the joint between an old wall and a newer frame is normally the first place rain gets in.
Before booking anyone
- How long the guarantee is
- What preparation is included
- Which sealant they’ll use, and why
- What insurance they hold
When it is not the sealant
It helps to know what we cannot do too:
- Whether work needs listed building consent
- Putty and glazing repairs
- Timber that has rotted
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Sort the mastic before the decorators arrive
- Find out about consent before window work on a listed home
- Go gently near the mastic when preparing windows
- Check the mastic when you check the paintwork
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
For anyone letting property in or around Lancing, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Your questions about sand mastic in Lancing
Do you cover smaller places like Lancing?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does living near the coast affect sand mastic in Lancing?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels across West Sussex.
Do you offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.