West Sussex · England
Lyminster Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Lyminster, with a one-year guarantee on every job. Call for a quick quote.
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
Sand mastic for homes and businesses in Lyminster
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead and we’ll explain which is best for yours. Common call-outs are for draughty sash windows at the surround and mastic round period door frames that has failed, on brick reveals, sash and case windows and timber door frames.
Around Lyminster, 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.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- Lyminster (BN17)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Lyminster homes and the weather
Lyminster 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’s hard on the mastic around older windows and doors, especially on the side facing the sea. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Lyminster Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near The Parish Church of St Mary Magdalen, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Lyminster is about 1 mile north-west of Littlehampton, in West Sussex. Lyminster gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Lyminster is one of 371 towns and villages in West Sussex where we work for sand mastic. We also work in Brighton, about 18 miles from Lyminster.
Here we cover the BN17 postcode area for sand mastic. Sand mastic is available to properties on Arundel Drive, Old Mead Road and Lyminster Road and the roads around them. We also cover the places around Lyminster: Wick (1 mile south), Toddington (1 mile south-east), Crossbush (1 mile north-east), Tortington (1 mile west) and Littlehampton (1 mile south-east). Larger places within reach include Worthing (6 miles east), Bognor Regis (7 miles south-west), Chichester (10 miles west), Selsey (12 miles south-west), Shoreham-by-Sea (12 miles east) and Lancing (10 miles east).
Local landmarks in Lyminster
In Lyminster, that means homes and buildings near The 6 Bells Public House, The Littlehampton Academy and Littlehampton College, among other places. The closest station to Lyminster is Arundel station, roughly 1.3 miles north. A little further out are Arundel and District Hospital (1.9 miles north-west) and Rustington Museum (2.3 miles south-east). Open spaces near Lyminster include Highdown Hill and WWT Arundel.
FAQs for Lyminster
Is sand mastic in a coastal place like Lyminster any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you cover smaller places like Lyminster?
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.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How much does sand mastic cost in Lyminster?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or send us an email and let us know what needs doing and where.
Why act early in Lyminster
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. Around Lyminster, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start.
Why Lyminster customers choose us
- Tidy, careful work
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- Over 20 years’ experience
Take a look at what affects the cost or our reviews.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Lyminster, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Mention any tricky access
- Clear items away from the joints we’re working on
- Mention any sign-in or site rules at work premises
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before any work starts.
Advice
Can I do it myself?
If you’re 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.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What we can’t put right
We will not take on work that won’t last, so these are the limits:
- Cracked or broken glass
- Crumbling stone or brickwork round the window
- Sashes that rattle, stick or will not open
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before booking.
What we seal
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured for the work.
Signs you need sand mastic in Lyminster
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
The problems people normally mention when they call include:
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
If you let a flat or house near Arundel station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- Is the old sealant removed completely?
- How long the guarantee is
- How the colour is chosen
- How hidden problems are handled
Nearby places to Lyminster
What else we do in Lyminster
What affects the cost of sand mastic
We quote each job individually. This is what makes a difference:
- How many areas need sealing
- The type of sealant required
- Any working-time requirements on site
- Whether the work is at height
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What we need to know
When you contact us, these details help:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.