West Sussex · England
Window Mastic in Cocking Causeway
Window mastic for Cocking Causeway, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- A bead that doesn’t match the frame
- Leaking joints at the ends of sills
- Mastic that’s falling out in pieces
Window mastic in Cocking Causeway
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on uPVC windows, composite doors and patio & French doors, and people most often call us about gaps where the sill meets the wall and cracked internal joints between frame and plaster.
Around Cocking Causeway, 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.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Location
- Cocking Causeway (GU29)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Avoid harsh chemicals near the mastic
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
- Walk round the house once a year and look at the joints
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just phone 0345 464 0079 or drop us an email.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
Common questions in Cocking Causeway
Do you cover Cocking Causeway for window mastic?
Yes, Cocking Causeway is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Cocking Causeway?
Yes. Cocking Causeway is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or email us.
How much does window mastic cost in Cocking Causeway?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before work begins.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
I rent my home. Can I book you?
Yes. Ask your landlord first, and we can send them the quote if that helps.
What we do, step by step
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes most of a day for a typical house, less for a few frames. Somewhere like Cocking Causeway needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention any parking rules near the property
- Clear the area around the work
- Tell us about any water getting in
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Related advice
When to call us in Cocking Causeway
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
If you can see any of these, it’s time to have the joints looked at:
- Damp patches on the reveal after heavy rain
- Whistling draughts around closed windows
- Mastic that has split away from the wall
- White mastic on grey or black frames
If you live in an older home near The Parish Church of St Mary Magdalene, the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before you book
- What the cure time is
- What insurance they hold
- Whether they seal over old material or remove it
- Whether VAT is included
Cocking Causeway homes and the weather
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. Historic houses like Cowdray House (about 1.2 miles north) are a reminder that the area around Cocking Causeway has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you look after a building such as Midhurst CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Cocking Causeway is about 9 miles east of Petersfield, in West Sussex. From the centre of Cocking Causeway to the outskirts, window mastic is available for homes and businesses alike. 371 places in West Sussex are on our list, large and small. We also work in Portsmouth, about 19 miles from Cocking Causeway.
Work in GU29 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Oaklands Lane and Well Lane or a nearby road, we can help. We also cover 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).
Local landmarks in Cocking Causeway
Around Cocking Causeway, our work takes us to homes and buildings near St Margaret's Convent, The Royal Oak Public House and Midhurst Rother College and the streets around them. Other landmarks nearby include Lodsworth Castle (3.1 miles east) and Midhurst Community Hospital (1.5 miles north). Not far away are Levin Down and Iping and Stedham Commons.
How we quote for window mastic
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- Working hours on commercial sites
- The product the joint needs
- The old material and how stubborn it is
- How much there is to do
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Towns and villages near Cocking Causeway
More services for Cocking Causeway
Landlord and commercial work in Cocking Causeway
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Should I try it myself first?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Why deal with it now?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Older cottages and farmhouses around Cocking Causeway can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
Why book with us
- You choose the colour before work begins
- Rated 4.9 stars on Google
- Anti-fungal silicone where joints get wet
- A choice of colours where the product allows
Read our cost guide and customer reviews.