West Sussex · England
Sand mastic for sash & case windows in Nyetimber, West Sussex
Sand mastic in Nyetimber from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
- Open joints round the window box
How we handle sand mastic in Nyetimber
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. We work on tenement windows, timber door frames and period & listed homes, and people most often call us about cracked mastic round a front door frame and gaps where the frame meets the masonry.
Around Nyetimber, conservatories, garden rooms and patio doors are often part of the house. 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.
A 12-month guarantee comes as standard.
- Place
- Nyetimber (PO21)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows. In a smaller place like Nyetimber, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
Places near Nyetimber
Also in Nyetimber
For landlords and businesses
Letting agents and landlords in Nyetimber can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Have rotten timber repaired before new mastic goes in
- Avoid patching sand mastic with silicone
- Clear gutters so water does not pour onto the windows
- Go gently near the mastic when preparing windows
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Sashes that rattle, stick or won’t open
- Rotten sashes, sills or window boxes (a joiner’s job)
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Brick reveals
- Tenement windows
- Sash and case windows
- Timber door frames
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
When to call us in Nyetimber
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
The problems people generally mention when they call are:
- Draughts and rain around sash boxes
- Gaps where the frame meets the masonry
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
Rented homes near Bognor Regis station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Before booking anyone
- What guarantee comes with the work
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Which sealant they’ll use, and why
Windows and doors in Nyetimber
Nyetimber 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 older windows and doors, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as The Parish Church of St Thomas A Becket, the joint between an old wall and a newer frame is generally the first place rain gets in. Managing a site like Rose Green Infant School? Then its window and door frames need their mastic kept sound, just like a home’s.
Nyetimber is about 2 miles south-west of Bognor Regis, in West Sussex. We carry out sand mastic for homes and businesses in Nyetimber and the surrounding area, as part of our work across West Sussex. We cover 371 towns and villages across West Sussex. You can also see our page for Portsmouth, about 15 miles away.
Jobs for sand mastic in PO21 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Lion Road, Hook Lane and Anson Road or a nearby road, our applicators can take on the job. Other places close to Nyetimber include Pagham (1 mile south-west), Aldwick (1 mile east), South Mundham (2 miles north-west), Fisher (2 miles north-west) and Sidlesham (2 miles west). We also work in nearby towns such as Worthing (15 miles east), Chichester (5 miles north-west), Selsey (4 miles south-west), Littlehampton (9 miles east), Emsworth (10 miles north-west) and Rustington (10 miles east).
Local landmarks in Nyetimber
In Nyetimber, that means homes and buildings near Avisford, The Regis School and The Lamb pub, among other places. Nyetimber’s nearest station is Bognor Regis station, about 2.6 miles east of the centre. A little further out are Bognor Regis Museum (2.4 miles east) and Bognor Regis War Memorial Hospital (2.8 miles east).
Quotes for sand mastic in Nyetimber
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Whether the work is at height
- Any working-time requirements on site
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Whether it has been sealed before
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Nyetimber questions
Will you come out to Nyetimber?
Yes, Nyetimber is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Bognor Regis station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
What guarantee comes with the work?
Our 12-month guarantee covers every job.
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.
How much does sand mastic cost in Nyetimber?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.