West Sussex · England
Window Mastic in Old Shoreham
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Old Shoreham. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Untidy mastic left by window fitters
- Mastic that is falling out in pieces
- White mastic on grey or black frames
Window mastic in Old Shoreham
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. Common call-outs are for cracked internal joints between frame and plaster and a bead that doesn’t match the frame, on uPVC windows, window sills and composite doors.
In a village or hamlet like Old Shoreham, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee, large or small.
- Where
- Old Shoreham (BN43)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
We keep the work tidy and contained to the joints we are treating, so you can carry on as normal. The job normally takes anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Old Shoreham, 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.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Get a quote
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
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Places near Old Shoreham
Also in Old Shoreham
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Honest limits
New sealant cannot fix everything, and we will tell you before we start. Sealant won’t put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Rotten timber, which needs a joiner first
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Timber windows & doors
- Window sills
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
Common questions in Old Shoreham
Does living near the coast affect window mastic in Old Shoreham?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
I let a flat near Shoreham-By-Sea station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Can I paint over the new sealant?
Not generally, if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.
Where do you work from?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Quotes for window mastic in Old Shoreham
There’s no set price list. What we look at:
- When we can work, for business premises
- The number and length of the joints
- The type of sealant required
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- How we’d reach the joints
- How many joints, rooms or windows are involved
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
How the job changes by surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
When to call us in Old Shoreham
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
Look out for any of the following:
- Cracked or shrunken mastic around the frame
- Black, perished sealant on frames
- Untidy mastic left by window fitters
- Cracked sealant at the sill ends
For site and facilities teams at buildings such as Swiss Gardens Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- How hidden problems are handled
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- How the colour is chosen
Keeping the joints in good condition
So the new joints stay in good condition:
- Avoid harsh chemicals near the mastic
- Keep jet washers away from the mastic
- Walk round the house once a year and look at the joints
- Air rooms to keep condensation down around windows
Silicone cannot generally be painted, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Leaks normally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
Window mastic in Old Shoreham: local notes
Old Shoreham is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. 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.
Rented homes near Shoreham-By-Sea station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as St Nicolas' Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Old Shoreham is about 1 mile west of Shoreham-by-Sea, in West Sussex. We carry out window mastic for homeowners, landlords and businesses in Old Shoreham and nearby. Our West Sussex coverage runs to 371 places, and Old Shoreham is one of them. We also work in Brighton, around 7 miles away.
All of BN43 is within our area for window mastic, from the main roads to the quietest streets. We also cover the places around Old Shoreham: Shoreham-by-Sea (1 mile east), Adur (1 mile north), Kingston by Sea (2 miles east), Southwick (2 miles east) and Castle Town (3 miles north). Within a short drive, we also cover Worthing (5 miles west), Haywards Heath (14 miles north-east), Burgess Hill (11 miles north-east), Littlehampton (11 miles west), Rustington (10 miles west) and Storrington (9 miles north-west).
Around Old Shoreham
Around Old Shoreham, our work takes us to homes and buildings near The Sir Robert Woodard Academy and The Amsterdam pub. Old Shoreham’s nearest station is Shoreham-By-Sea station, roughly 0.7 miles east of the centre. Well-known places in the area include Southlands Hospital (1.4 miles east) and Old Castle (4.6 miles west). The countryside around Old Shoreham includes Lancing Ring and Adur Estuary RSPB Reserve.