West Sussex · England
Cocking Causeway Sand Mastic
Problem with your window and door surrounds in Cocking Causeway? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
- Draughts and rain around sash boxes
Sand mastic for homes and businesses in Cocking Causeway
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. 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 a silicone bead on a sash window that spoils the look and crumbling sand mastic round a window, we can put it right.
Somewhere as small as Cocking Causeway, 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.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Location
- Cocking Causeway (GU29)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints, and the area is left clean. In a small place like Cocking Causeway, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
For sand mastic in Cocking Causeway, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
Do you need sand mastic in Cocking Causeway?
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
Common reasons people contact us are:
- A silicone bead on a sash window that spoils the look
- Tired mastic found when preparing windows for paint
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
For site and facilities teams at buildings such as Midhurst CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Whether they’re fully insured
- Which colour the sealant will be
- What guarantee comes with the work
- How hidden problems are handled
Quotes for sand mastic in Cocking Causeway
There’s no set price list. The quote depends on:
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- The size of the job
- How many rooms, windows or areas are involved
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
What we need to know
You do not need to know the technical terms. Just tell us:
- Where the job is, and your postcode
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Nearby places to Cocking Causeway
What else we do in Cocking Causeway
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
If you do try it yourself, take your time over the 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.
Looking after it afterwards
Aftercare is simple:
- Find out about consent before window work on a listed home
- Make sure water runs off the sill
- Look over the window mastic once a year
- Avoid heavy scraping on the mastic joint
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
Cocking Causeway questions
Is there a guarantee on sand mastic in Cocking Causeway?
All our work, in Cocking Causeway and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Cocking Causeway for sand mastic?
Yes, Cocking Causeway is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Should I use sand mastic or silicone?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Landlord and commercial work in Cocking Causeway
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Cocking Causeway homes and the weather
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Cowdray House (about 1.2 miles north) nearby, there’s older building stock in the area around Cocking Causeway as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Homes close to The Parish Church of St Mary Magdalene include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Cocking Causeway is about 9 miles east of Petersfield, in West Sussex. Whether you are in the middle of Cocking Causeway or further out, sand mastic is available for homes and businesses alike. Cocking Causeway is one of 371 towns and villages in West Sussex we cover. Portsmouth is on our list too, around 19 miles away.
Jobs for sand mastic in GU29 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on Oaklands Lane and Well Lane. Nearby, we also carry out sand mastic in West Lavington (1 mile north-east), Midhurst (1 mile north), Bepton Common (1 mile north-west), Heyshott Green (1 mile south-east) and Cocking (1 mile south). Larger places within reach include Bognor Regis (13 miles south), Chichester (9 miles south), Littlehampton (14 miles south-east), Emsworth (12 miles south-west), Rustington (15 miles south-east) and Storrington (13 miles east).
Near you in Cocking Causeway
We work in homes and buildings around St Margaret's Convent, The Royal Oak Public House and Midhurst Rother College and the streets around them. A little further out are Lodsworth Castle (3.1 miles east) and Midhurst Community Hospital (1.5 miles north). For a walk, there’s Levin Down and Iping and Stedham Commons.