West Sussex · England
Window & door mastic in Yapton, West Sussex
We cover Yapton for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Draughty joints inside around the window
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
About our window mastic in Yapton
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. Typical jobs include gaps between the frame and the inside reveal and cold air getting in at the frame edge, across uPVC windows, timber windows & doors and composite doors.
Many houses in smaller places like Yapton have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or drop us an email.
- Where
- Yapton (BN18)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job normally takes most of a day for a typical house, less for a few frames. A visit to Yapton is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we go round the frames with you and agree the list.
- 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.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
Related advice
Honest limits
It helps to know what we cannot do:
- A failed sealed unit that has misted up
- A frame that has rotted at the joint
- Damp problems in the wall away from the window
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before booking.
Where we work in Yapton
- Composite doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Look round the frames every year or so
- Wash the frames with mild soapy water
- Avoid blasting the frames with a pressure washer
- Do not use solvent cleaners on the joint
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
When to call us in Yapton
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
People usually contact us after spotting something like this:
- A bead that doesn’t match the frame
- Leaking joints at the ends of sills
- Old mastic that has gone black or come away
- Draughts coming in around windows and doors
For site and facilities teams at buildings such as Yapton CE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- What product goes in the joint
- The length of the guarantee
- Who turns up on the day
- Whether all the old sealant comes out first
Frames and glazing around Yapton
Yapton is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. The South East is one of the drier parts 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 Barnham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Yapton is about 4 miles north-east of Bognor Regis, in West Sussex. From the centre of Yapton to the outskirts, we cover window mastic for every kind of property. Our West Sussex coverage runs to 371 places, Yapton among them. For nearby work, see our Portsmouth page.
Work in BN18 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Church Road, Dunnock Square and Charles Square or a nearby road, our applicators can take on the job. Yapton sits on or near the B2132. If you are just outside Yapton, we cover Bilsham (1 mile south), Barnham (1 mile north-west), Flansham (2 miles south-west), West Barnham (2 miles north-west) and Walberton (2 miles north). Within a short drive, we also cover Worthing (9 miles east), Bognor Regis (4 miles south-west), Chichester (7 miles west), Selsey (10 miles south-west), Littlehampton (4 miles east) and Shoreham-by-Sea (15 miles east).
Landmarks near Yapton
Locally, jobs take us to homes and businesses close to St Philip Howard Catholic High School and the streets around them. For rail, the closest station is Barnham station, roughly 1.5 miles north-west of the centre. Nearby you’ll also find Bognor Regis Museum (3.9 miles south-west) and Arundel and District Hospital (3.2 miles north-east). Not far away are WWT Arundel.
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. In an older home around Yapton, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- A choice of colours where the product allows
- Sealant colour chosen to suit
- 180+ five-star Google reviews
- You choose the colour before work begins
Take a look at our cost guide and what customers say.
How the job changes by surface
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
Yapton questions
Do you cover smaller places like Yapton?
Yes, Yapton is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Barnham station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can I paint over the new sealant?
Silicone generally will not take paint. Let us know beforehand, and we will use a paintable product where it suits.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Will new mastic stop draughts?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
How we quote for window mastic
The quote reflects the job in front of us. We take into account:
- The product the joint needs
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- When we can work, for business premises
Combining jobs into one visit usually makes better use of the time than several visits. We will send you a clear quote for the lot.
Helping us quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- The address or postcode of the job
- What’s wrong with the joints now
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.