West Sussex · England
Window & door mastic in West Itchenor, West Sussex
We cover West Itchenor for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Whistling draughts around closed windows
- Damp patches on the reveal after heavy rain
- Mastic that’s falling out in pieces
What sealant work cannot fix
We will always be straight with you, so here’s what sealant cannot fix:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A door that needs adjusting, rehanging or new seals
- Faulty window hardware
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Aluminium frames
- Composite doors
- Window sills
- Patio & French doors
- uPVC windows
- Timber windows & doors
Window mastic in West Itchenor
Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you are dealing with black, perished sealant on frames and cracked internal joints between frame and plaster, we can put it right, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in West Itchenor is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Location
- West Itchenor (PO20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Windows and doors in West Itchenor
West Itchenor is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Bosham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around St Nicholas' Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
West Itchenor is about 5 miles south-west of Chichester, in West Sussex. Homes, rented property, offices and hotels in West Itchenor can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. West Itchenor is one of 371 towns and villages in West Sussex where we work. We also work in Portsmouth, around 9 miles away.
All of PO20 is within our area for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on The Street, Waterstone Close and Spinney Lane and the roads around them. Other places close to West Itchenor include Bosham Hoe (1 mile north-east), Bosham (2 miles north), Chidham (2 miles north), Broadbridge (3 miles north) and Apuldram (3 miles north-east). We also work in nearby towns such as Bognor Regis (8 miles east), Chichester (5 miles north-east), Selsey (6 miles south-east), Littlehampton (15 miles east), Emsworth (5 miles north-west) and Portfield (5 miles north-east).
Around West Itchenor
The nearest railway station is Bosham station, about 2.9 miles north. Nearby you will also find St Richard's Hospital (5 miles north-east) and Chichester Castle (4.7 miles north-east). Open spaces near West Itchenor include Pilsey Island.
Questions from West Itchenor
Does the coastal weather in West Itchenor affect outside sealant?
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 Itchenor?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How much does window mastic cost in West Itchenor?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.
Do you guarantee window mastic?
Yes. Each job is covered for 12 months, inside or out.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.
Why it’s worth doing now in West Itchenor
If you’re painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. In a small place like West Itchenor, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
Why West Itchenor clients choose us
- 12-month guarantee on every job
- 180+ five-star Google reviews
- Quality sealants from Arbo and Everbuild
- Sealant colour chosen to suit
See what affects the cost and our reviews.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How it works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours for a handful of frames, longer for a whole house, and we explain the cure time before we leave. Somewhere like West Itchenor needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- 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.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
Get a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Advice
Also near West Itchenor
Other services in West Itchenor
Looking after it afterwards
To keep the joints looking good and working properly:
- Avoid blasting the frames with a pressure washer
- Walk round the house once a year and look at the joints
- Keep timber frames painted
- Avoid harsh chemicals near the mastic
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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 fails, we can still redo it.