East Sussex · England
Sand Mastic in Penhurst
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Penhurst, with a one-year guarantee on every job. Ask us for a quote.
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
Penhurst: your questions answered
I let a flat near Battle station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover Penhurst for sand mastic?
Yes. We work across London and the South East, and Penhurst is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
Can I add another job to the visit?
Yes. Just list everything you need.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we will advise.
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.
How much does sand mastic cost in Penhurst?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or email us and let us know what needs doing and where.
About our sand mastic in Penhurst
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We work on brick reveals, period & listed homes and tenement windows, and common reasons people get in touch are crumbling sand mastic round a window and open joints round the window box.
In a village or hamlet like Penhurst, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Our work is backed for twelve months, in Penhurst and everywhere else we cover.
- Location
- Penhurst (TN33)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
In hotels, rooms out of use cost money, 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.
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.
What the job involves on each surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Nearby places to Penhurst
What else we do in Penhurst
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours per window, depending on the condition of the joints in most cases. Somewhere as small as Penhurst, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Clear the area around the work
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
How to get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work.
Related advice
Why deal with it now?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. Where a wall is exposed, as many are in small places like Penhurst, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What you get with us
- Quality sealants from Arbo and Everbuild
- 180+ five-star Google reviews
- 20+ years of sealant experience
- Full insurance on every job
Read how sealant jobs are priced and our reviews.
What sand mastic looks like in Penhurst
Historic houses like Bateman's (about 4.7 miles north) are a reminder that the area around Penhurst has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Battle station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Penhurst is about 6 miles north-west of Bexhill-on-Sea, in East Sussex. Penhurst gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 289 places in East Sussex are on our list, large and small. For nearby work, see our Brighton page, about 24 miles away.
All of TN33 is covered for sand mastic, from the main roads to the quietest streets. Neighbouring places we cover for sand mastic include Steven's Crouch (2 miles south-east), Netherfield (2 miles north-east), Twelve Oaks (2 miles north), Hollingrove (3 miles north) and Brightling (3 miles north). Larger places within reach include Eastbourne (11 miles south-west), Hastings (8 miles south-east), Bexhill-on-Sea (6 miles south-east), Hailsham (8 miles south-west), Crowborough (14 miles north-west) and St Leonards (8 miles south-east).
What’s near Penhurst
We work in homes and buildings around Ashburnham Park, among other places. For rail, the closest station is Battle station, about 3.8 miles east. Nearby you’ll also find Battle Museum of Local History (3.2 miles east) and Bexhill Hospital (5.8 miles south-east). Not far away are Senlac Hill.
Common problems we fix in Penhurst
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
Look out for any of the following:
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
- Draughty sash windows at the surround
- Failed mastic on an exposed elevation
If you live in an older home near The Parish Church of St Michael, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Who turns up on the day
- What product goes in the joint
- Are they insured?
- Is VAT in the price?
Quotes for sand mastic in Penhurst
Call for a quick quote. The main things that affect it are:
- The product the joint needs
- How easy the joints are to reach
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we will talk you through it.
Asking for a quote
To make quoting easier, please include:
- Whether it has been sealed before
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.