West Sussex · England
Sand mastic for sash & case windows in Westerton, West Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Westerton and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
- Old cement repairs round a window that have failed
Quotes for sand mastic in Westerton
The price is agreed before any work begins. It takes into account:
- The amount of work
- The old material and how stubborn it is
- Working hours on commercial sites
- Any mould that needs treating
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Helping us quote
There’s no need for technical detail. Just tell us:
- If someone has resealed it before
- The problem you’ve noticed
- A few photos by email, if you can
- Access, such as stairs, a lift or height
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Sand mastic in Westerton
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We work on tenement windows, sash and case windows and timber door frames, and people most often call us about gaps where the frame meets the masonry and mastic dropping out of the joint.
Outdoor sealant needs dry, clean surfaces, so work on frames around Westerton is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Our work is backed for twelve months, in Westerton and everywhere else we cover.
- Where
- Westerton (PO18)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need sand mastic in Westerton?
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
The most common problems we see are:
- Patchy fillers round a sash window
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
Letting a property close to Chichester station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- Whether they seal over old material or remove it
- How the colour is chosen
- Whether VAT is included
- How the surfaces are prepared before sealing
Landlord and commercial work in Westerton
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
If you manage several properties in or around Westerton, several properties can go on one quote. Just tell us the addresses and what each one needs.
Surface by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Sand mastic in Westerton: local notes
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. With historic houses such as Goodwood House (about 0.8 miles north) nearby, there’s older building stock in the area around Westerton as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as The March CofE Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to The Parish Church of St Peter include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Westerton is about 2 miles north-east of Chichester, in West Sussex. Westerton gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Westerton is one of 371 places in West Sussex where we work for sand mastic. Portsmouth is on our list too, around 15 miles away.
Jobs for sand mastic in PO18 works the same way as everywhere else we cover. We also cover the places around Westerton: Strettington (1 mile east), Waterbeach (1 mile north-east), Maudlin (1 mile south), Westhampnett (1 mile south-west) and Shopwyke (1 mile south). Larger places within reach include Worthing (15 miles east), Bognor Regis (5 miles south-east), Selsey (9 miles south), Littlehampton (10 miles east), Emsworth (8 miles west) and Rustington (11 miles east).
What’s near Westerton
Locally, jobs take us to homes and businesses close to Chichester High School For Girls, Westbourne House School and The Coach And Horses Public House, among other places. Westerton’s nearest station is Chichester station, roughly 2.5 miles south-west of the centre. Well-known places in the area include Chichester Castle (2 miles south-west) and Chichester Centre (1.5 miles south-west). Green spaces nearby include Kingley Vale National Nature Reserve and Levin Down.
How it works
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours for a single window, longer for several. In a small place like Westerton, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Mention any tricky access
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Related advice
Also near Westerton
What else we do in Westerton
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Look over the window mastic once a year
- Go gently near the mastic when preparing windows
- Leave the new mastic unpainted
- Renew mastic before redecorating the windows
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
When it isn’t the sealant
We’d rather tell you now than do work that won’t last, so these are the limits:
- Masonry that needs repairing
- Sash cords, weights and draught-proofing of the sashes
- Putty and glazing repairs
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Timber door frames
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows
- Sash and case windows
Your questions about sand mastic in Westerton
Do you work for landlords with property near Chichester station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover Westerton for sand mastic?
Yes, Westerton is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant, and we will explain why.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
What does sand mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. If you are redecorating the window, ask us first and we will advise.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
How long does sand mastic take to go off?
It takes a while. The skin forms first, and the full set comes later and we will give you an idea for your job.