West Sussex · England
Window Mastic in West Wittering
Window and door frames in West Wittering need attention? We cut out the old, prepare the joints and apply the right sealant.
- Water coming in at the bottom corners of a door
- Old mastic that has gone black or come away
- Untidy mastic left by window fitters
Window mastic for homes and businesses in West Wittering
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, patio & French doors and window sills, and common reasons people get in touch are rushed sealant from a window installation and gaps between the frame and the inside reveal.
Mastic can only go onto a dry, clean joint, so window work in West Wittering is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Place
- West Wittering (PO20)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes anything from an hour or two to a full day, depending on how many frames there are, depending on the amount of work. Somewhere like West Wittering needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. 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.
- Where the gap is deep, backing rod goes in first.
- 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
- Tell us about any water getting in
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.
Related advice
What window mastic looks like in West Wittering
West Wittering 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. That is hard on the mastic around window and door frames, especially on the side facing the sea. 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.
For landlords with property near Nutbourne station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near The Parish Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as West Wittering Parochial Church of England School, the mastic around its windows and doors needs looking after like any other building’s.
West Wittering is about 6 miles north-west of Selsey, in West Sussex. Homes, rented property, offices and hotels in West Wittering can book us for window mastic. The work is guaranteed for a year. Our area takes in 371 places across West Sussex, from the larger towns to small villages. For nearby work, see our Portsmouth page (8 miles or so).
All of PO20 is covered for window mastic. You will find streets such as Royce Way, Elmstead Gardens and Locksash Close. We also cover the places around West Wittering: East Wittering (2 miles south-east), Shipton Green (2 miles north-east), Somerley (2 miles east), Earnley (2 miles east) and Birdham (3 miles east). Within a short drive, we also cover Bognor Regis (9 miles east), Chichester (6 miles north-east), Selsey (6 miles south-east), Emsworth (5 miles north), Portfield (7 miles north-east) and Yapton (13 miles east).
Landmarks near West Wittering
We work in homes and buildings around The Wittering pub. West Wittering’s nearest station is Nutbourne station, roughly 4.6 miles north. Green spaces nearby include Pilsey Island.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Surface by surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
West Wittering: your questions answered
Is window mastic in a coastal place like West Wittering any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like West Wittering?
Yes. West Wittering 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.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you have insurance?
Yes. We are fully insured.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What affects the cost of window mastic
Call for a quick quote. The main things that affect it are:
- Whether there’s mould to deal with
- When we can work, for business premises
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
When you contact us, these details help:
- Where the property is
- Any access issues, like height or stairs
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Keep drainage slots and sill grooves clear
- Walk round the house once a year and look at the joints
- Wipe condensation off the frames
- Keep paint off silicone joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just ring 0345 464 0079 or drop us an email.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Towns and villages near West Wittering
What else we do in West Wittering
Why it’s worth doing now in West Wittering
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Around West Wittering, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What you get with us
- Approved under the ARBOMaster scheme
- Colour picked to suit the job
- White, clear, grey or another colour, product permitting
- Old sealant always removed completely
Take a look at what affects the cost and our reviews.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
- Draughts through the window seals rather than the frame
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in West Wittering
- Aluminium frames
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Timber windows & doors