West Sussex · England
Wisborough Green Sand Mastic
We cover Wisborough Green for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Silicone on a period window that looks wrong
What sand mastic looks like in Wisborough Green
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. With historic houses such as Old Place Manor (about 4.4 miles south) nearby, there’s older building stock in the area around Wisborough Green 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.
Rented homes near Billingshurst station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. For an older house near a landmark such as The Parish Church of St Peter Ad Vincula, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Wisborough Green Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Wisborough Green is about 9 miles west of Horsham, in West Sussex. Homes, rented property, offices and hotels in Wisborough Green can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. We cover 371 towns and villages across West Sussex, large and small. Crawley is on our list too, around 15 miles away.
We work across the RH14 postcode area for sand mastic and the streets around it. Local streets include Balchins Close, Thornton Meadow and School Road, all of which we cover. Close by, we work in Kirdford (2 miles west), Mackerel's Common (2 miles north-west), Ifold (3 miles north-west), Loxwood (4 miles north) and Balls Cross (4 miles west). Within a short drive, we also cover Crawley (15 miles north-east), Horsham (9 miles east), Worthing (15 miles south), Littlehampton (15 miles south), Rustington (15 miles south) and Broadfield (14 miles east).
Around Wisborough Green
Around Wisborough Green, our work takes us to homes and buildings near The Cricketers Arms Public House and The Weald School, among other places. Wisborough Green’s nearest station is Billingshurst station, roughly 2.5 miles east. Green spaces nearby include The Mens.
How we handle sand mastic in Wisborough Green
We work across Wisborough Green renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on tenement windows, stone surrounds and period & listed homes, and the jobs we see most are open joints round the window box and mastic worn away on windows facing the weather.
Mastic can only go onto a dry, clean joint, so window work in Wisborough Green is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Each job carries a 12-month guarantee, large or small.

- Where
- Wisborough Green (RH14)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Wisborough Green
Other services in Wisborough Green
Wisborough Green questions
Do you cover smaller places like Wisborough Green?
Yes. Wisborough Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Billingshurst station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Planning or listed building consent (your local planning authority decides)
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before booking.
What we seal
- Sash and case windows
- Brick reveals
- Stone surrounds
- Tenement windows
- Period & listed homes
- Timber door frames
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
What affects the cost of sand mastic
For a quick quote, just ask. What matters most is:
- How many areas need sealing
- The old material and how stubborn it is
- The type of sealant required
- The number and length of the joints
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
Asking for a quote
To help us quote quickly, let us know:
- The type of property
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- Roughly how big the job is
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
How the job changes by surface
Stone surrounds
Old stone surrounds are often uneven, so the gap isn’t the same all the way round. We shape it by hand to follow the stone.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.
What happens on the day
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Wisborough Green, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Advice
Why deal with it now?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Wisborough Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit normally makes better use of the time than several visits. We’ll give you a clear price for the lot.
Why choose Mr Mastic in Wisborough Green
- We are fully insured
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
- Over 20 years’ experience
See what affects the cost and what customers say.
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
