West Sussex · England
Window Mastic in West Kingston
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in West Kingston. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Penetrating damp from a failed cavity tray or render
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A sash or casement that will not close properly
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- uPVC windows
- Patio & French doors
- Window sills
- Timber windows & doors
- Composite doors
- Aluminium frames
About our window mastic in West Kingston
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 composite doors, aluminium frames and window sills, and common reasons people get in touch are hard, cracked sealant around windows and gaps where the sill meets the wall.
Around West Kingston, 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.
Every job comes with a one-year guarantee, wherever you are in West Sussex.
- Place
- West Kingston (BN16)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Quotes for window mastic in West Kingston
Call for a quick quote. What matters most is:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How many rooms, windows or areas are involved
- Working hours on commercial sites
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- How we’d reach the joints
- The type of property
- A few photos by email, if you can
- How many joints, rooms or windows are involved
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as West Kingston, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
- Keep pets and children clear of the area while we work
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
Read more
Why deal with it now?
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. In a small place like West Kingston, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why us?
- A 12-month guarantee on all work
- We never seal over old sealant
- You choose the colour before work begins
- Anti-fungal sanitary silicone in wet areas
Take a look at what affects the cost or our reviews.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Keep paint off silicone joints
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
- Keep jet washers away from the mastic
Keep the new mastic undisturbed while it cures, for as long as we advise. Do not point a pressure washer at the joints.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
West Kingston questions
I let a flat near Angmering station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Is window mastic in a coastal place like West Kingston 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.
Can you do upstairs windows?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator.
Is the new sealant paintable?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you when we finish.
Towns and villages near West Kingston
What else we do in West Kingston
West Kingston homes and the weather
West Kingston 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’s hard on the mastic around window and door frames, especially on the side facing the sea. With historic houses such as Ecclesden Manor (about 1.7 miles north) nearby, there’s older building stock in the area around West Kingston as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as St Andrew's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as East Preston Infant School, larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Angmering station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
West Kingston is about 3 miles east of Littlehampton, in West Sussex. Jobs in West Kingston get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 371 places across West Sussex. We also work in Brighton, about 15 miles from West Kingston.
Postcode districts we cover here for window mastic: BN16. That includes homes and businesses on Coastal Road and Golden Acre. Neighbouring places we cover for window mastic include Angmering-on-Sea (1 mile west), Kingston Gorse (1 mile east), East Preston (1 mile north-west), Ferring (1 mile east) and Hangleton (1 mile north-east). Further out, we also cover Worthing (3 miles north-east), Bognor Regis (10 miles west), Chichester (14 miles west), Selsey (15 miles west), Littlehampton (3 miles west) and Shoreham-by-Sea (9 miles east).
Landmarks near West Kingston
In West Kingston, that means homes and buildings near The Angmering School, among other places. West Kingston’s nearest station is Angmering station, roughly 1.2 miles north-west. A little further out are Rustington Museum (1.6 miles west) and Old Castle (3.6 miles north-east). The countryside around West Kingston includes Highdown Hill.
How the job changes by surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match suits the frame.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.