West Sussex · England
West Barnham Window Mastic
Specialist window mastic for West Barnham: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracked or shrunken mastic around the frame
- Gaps between the frame and the inside reveal
- Cold air getting in at the frame edge
Window mastic in West Barnham, done properly
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. We work on patio & French doors, timber windows & doors and uPVC windows, and common reasons people get in touch are black, perished sealant on frames and rushed sealant from a window installation.
Around West Barnham, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
You’re covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or email us.
- Location
- West Barnham (PO22)
- Region
- West Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
DIY versus a professional finish
If you’re 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.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Places near West Barnham
Other services in West Barnham
Quotes for window mastic in West Barnham
Some jobs are bigger than they look, and some smaller. The main factors:
- How easy the joints are to reach
- The number of rooms or windows
- How much there is to do
- Working hours on commercial sites
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
When you call or email, these details help:
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
- The type of property
- The rough size of the job
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
What happens on the day
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. For a village or hamlet like West Barnham, the journey is planned in advance: 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.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Clear items away from the joints we are working on
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
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Different surfaces, different methods
Aluminium frames
Aluminium needs a sealant that bonds to coated metal, and acetoxy silicones are not used, as they can attack some metals. We use a neutral-cure product.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We’ll tell you which suits your home.
Do you need window mastic in West Barnham?
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. That is what backing rod is for.
People usually contact us when they notice one of these:
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
- Gaps left after new windows were fitted
- A bead that doesn’t match the frame
For site and facilities teams at buildings such as Barnham Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- What insurance they hold
- What the cure time is
Frames and glazing around West Barnham
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Barnham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to The Parish Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
West Barnham is about 4 miles north-east of Bognor Regis, in West Sussex. We carry out window mastic for householders, landlords and businesses in West Barnham. Our West Sussex coverage runs to 371 places, West Barnham among them. We also work in Portsmouth, around 19 miles away.
We cover every part of PO22 for window mastic and the streets around it. Window mastic is available to properties on Woodside, Orchard Way and Paddocks. Main roads around West Barnham include the B2233, so getting to you is simple. Nearby, we also carry out window mastic in Barnham (1 mile south-east), Eastergate (1 mile north-west), Walberton (1 mile north-east), Westergate (1 mile west) and Fontwell (1 mile north). Further out, we also cover Worthing (11 miles east), Bognor Regis (4 miles south-west), Chichester (6 miles west), Selsey (9 miles south-west), Littlehampton (5 miles east) and Lancing (14 miles east).
Local landmarks in West Barnham
Typical jobs here are in homes near St Philip Howard Catholic High School and The Murrell Arms, among other places. There’s a railway station in West Barnham itself: Barnham station. Nearby you will also find Tote Copse Castle (2.2 miles west) and Bognor Regis War Memorial Hospital (3.3 miles south-west). Not far away are WWT Arundel.
Landlord and commercial work in West Barnham
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- A failed sealed unit that has misted up
- Soft or decayed wood in the frame
- Damp problems in the wall away from the window
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Window sills
- uPVC windows
- Composite doors
- Aluminium frames
- Timber windows & doors
- Patio & French doors
West Barnham: your questions answered
Can you help a landlord with a rental near Barnham station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover West Barnham for window mastic?
Yes, West Barnham is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Is the new sealant paintable?
That depends on the product. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before any work starts.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Where are you based?
We work from Crawley. Our applicators cover West Barnham, along with the rest of our area.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.