West Sussex · England
Avisford Window Mastic
Our applicators work in Avisford on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Damp patches on the reveal after heavy rain
- Hard, cracked sealant around windows
- Black, perished sealant on frames
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. Somewhere like Avisford needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Keep children and pets away from the work area
- Mention any parking rules near the property
- Tell us about any water getting in
Get a quote
If you are in Avisford and need window mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
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About our window mastic in Avisford
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, window sills and timber windows & doors, and people most often call us about untidy mastic left by window fitters and draughty joints inside around the window.
Around Avisford, 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.
All of our work is guaranteed for twelve months.
- Where
- Avisford (BN18)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. Where a wall is exposed, as many are in small places like Avisford, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- Homes, businesses and hotels
- 20+ years of sealant experience
- Colour picked to suit the job
- 12-month guarantee on every job
See our cost guide or customer reviews.
What affects the quote in Avisford
Call for a quick quote. What matters most is:
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
What to tell us for a quote
When you call or email, it’s useful to know:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Landlords, agents and businesses in Avisford
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
Your questions about window mastic in Avisford
Will you come out to Avisford?
Yes. Avisford is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Barnham station?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.
How many windows can you do in a day?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Are you fully insured?
Yes, we’re fully insured for domestic and commercial work.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Avisford homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
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. Homes close to 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.
Avisford is about 4 miles north-west of Littlehampton, in West Sussex. We carry out window mastic for homes and businesses in Avisford and nearby. Across West Sussex, we cover 371 places, and Avisford is one of them. We also work in Portsmouth, around 20 miles away.
Postcode districts we cover here for window mastic: BN18. We also cover Binsted (1 mile east), Walberton (1 mile south-west), Slindon Common (1 mile north-west), Slindon (1 mile north-west) and West Barnham (2 miles south-west). Further out, we also cover Worthing (9 miles east), Bognor Regis (5 miles south-west), Chichester (7 miles west), Selsey (11 miles south-west), Littlehampton (4 miles south-east) and Shoreham-by-Sea (15 miles east).
Around Avisford
Typical jobs here are in homes near St Philip Howard Catholic High School and the streets around them. The closest station to Avisford is Barnham station, about 1.7 miles south-west. Nearby you will also find Arundel Castle (2.6 miles east) and Arundel and District Hospital (2.1 miles east). Open spaces near Avisford include Bignor Hill and WWT Arundel.
Towns and villages near Avisford
What else we do in Avisford
How the job changes by surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so they get particular care.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We will tell you which suits your home.
What we cannot put right
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- A sash or casement that will not close properly
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Patio & French doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
When to call us in Avisford
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. That’s what backing rod is for.
It’s worth asking for a quote if you see:
- Draughty joints inside around the window
- Old mastic that has gone black or come away
- Gaps left after new windows were fitted
- Leaking joints at the ends of sills
For site and facilities teams at buildings such as Walberton and Binsted CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Who turns up on the day
- What insurance they hold
- What product goes in the joint
- What the cure time is