West Sussex · England
Poynings Sand Mastic
Sand mastic for Poynings and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Window mastic to renew ahead of painting
- Cement or filler used on old window joints that has cracked
- Mastic worn away on windows facing the weather
Sand mastic for homes and businesses in Poynings
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. If you are dealing with old sand mastic that has cracked, crumbled or fallen out and failed mastic on an exposed elevation, we can put it right, on sash and case windows, timber door frames and stone surrounds alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Poynings is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Location
- Poynings (BN45)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
To keep the joints looking good and working properly:
- Find out about consent before window work on a listed home
- Get any rot dealt with first
- Plan mastic work ahead of painting
- Inspect the joints round the windows every year or so
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Nearby places to Poynings
What else we do in Poynings
What sand mastic looks like in Poynings
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Portslade Manor (about 3.7 miles south) are a reminder that the area around Poynings has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Homes close to The Church of the Holy Trinity include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Hassocks station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Poynings is about 4 miles north of Brighton and Hove, in West Sussex. Poynings gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Poynings is one of 371 places in West Sussex where we work for sand mastic.
Jobs for sand mastic in BN45 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on The Street and Cora's Walk. Neighbouring places we cover for sand mastic include Fulking (1 mile south-west), Hangleton (3 miles south), Portslade (4 miles south), Castle Town (4 miles west) and Kingston by Sea (4 miles south). Larger places within reach include Crawley (15 miles north), Horsham (13 miles north-west), Worthing (10 miles south-west), Haywards Heath (9 miles north-east), Burgess Hill (5 miles north-east) and Littlehampton (15 miles south-west).
Landmarks near Poynings
In Poynings, that means homes and buildings near Royal Oak pub, among other places. For rail, the closest station is Hassocks station, roughly 3.3 miles north-east. Nearby you’ll also find The Budding Foundation Museum of Gardening (2.9 miles north-east) and Southlands Hospital (4.4 miles south-west). Not far away are Wolstonbury Hill and Woods Mill.
How we quote for sand mastic
Call for a quick quote. What matters most is:
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- Access and height
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Helping us quote
To help us quote quickly, please include:
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- The rough size of the job
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.
What happens if it’s left?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. Around Poynings, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: 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.
What you get with us
- Over 20 years’ experience
- Homes, businesses and hotels
- Arbo and Everbuild products
- 12-month guarantee on every job
Take a look at how sealant jobs are priced and our reviews.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Poynings, 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 agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
Ask for a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Read more
FAQs for Poynings
I let a flat near Hassocks station. Can you help?
Yes, we work for landlords and agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you cover smaller places like Poynings?
Yes. Poynings 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 guarantee sand mastic work?
All our work has a 12-month guarantee.
Is sand mastic better than silicone for my windows?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
How long will you be here?
Typically it takes a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.
What does sand mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
How the job changes by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Honest limits
A few problems are outside what sealant work can do:
- Timber that has rotted
- Masonry that needs repairing
- Cracked or broken glass
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
Joints and surfaces we work on
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows
- Tenement windows
- Brick reveals