Windsor and Maidenhead · England
Braywoodside Sand Mastic
Sand mastic across Braywoodside and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Tired mastic found when preparing windows for paint
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How we handle sand mastic in Braywoodside
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it so the surround looks right again. Typical jobs include draughts and rain around sash boxes and cracked mastic round a front door frame, on brick reveals, period & listed homes and tenement windows.
Around Braywoodside, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Braywoodside (SL6)
- Region
- Windsor and Maidenhead
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for sand mastic
The quote reflects the job in front of us. We look at:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Whether the work is at height
- When we can work, for business premises
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Photos by email, if that is easy
- Whether it has been sealed before
- The address or postcode of the job
- How we’d reach the joints
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
For anyone letting property in or around Braywoodside, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
Common problems we fix in Braywoodside
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Common reasons people contact us are:
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
For landlords with property near Maidenhead station, any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- Whether VAT is included
- What happens if the job turns out different
- Whether you can choose the colour
- How much experience the applicator has
Nearby places to Braywoodside
More services for Braywoodside
Different surfaces, different methods
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
The process
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. It generally takes a few hours per window, depending on the condition of the joints. Somewhere like Braywoodside needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
- Clear items away from the joints we’re working on
Ask for a quote
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
Advice
Braywoodside: your questions answered
Can you do sand mastic in Braywoodside?
Yes. We work across London and the South East, and Braywoodside is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Braywoodside?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Are you insured?
Yes, we are fully insured for domestic and commercial work.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Which is right for my windows, sand mastic or modern sealant?
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.
How long does the job take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Braywoodside homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Dorney Court (about 3.8 miles north-east) are a reminder that the area around Braywoodside has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Historic houses such as Dorney Court, about 3.8 miles north-east, show how far back building around Braywoodside goes, and older homes nearby need a sealant that suits their walls. If you look after a building such as Holyport College, larger buildings have plenty of frames, and the mastic around each one ages.
Braywoodside is about 3 miles south of Maidenhead, in Windsor and Maidenhead. We provide sand mastic to householders, landlords and businesses in Braywoodside and nearby. Across Windsor and Maidenhead, we cover 57 places, Braywoodside among them. You can also see our page for Reading, about 10 miles away.
Work in SL6 is quoted and booked the same way as anywhere else. If you’re just outside Braywoodside, we cover Paley Street (1 mile north-west), Littlefield Green (1 mile west), Touchen-end (1 mile north-east), Hawthorn Hill (1 mile south) and Stud Green (1 mile north-east). We also work in nearby towns such as Maidenhead (3 miles north), Windsor (5 miles east), Boyn Hill (3 miles north), North Ascot (4 miles south-east), Cookham (6 miles north) and Furze Platt (4 miles north).
What’s near Braywoodside
Locally, jobs take us to homes and businesses close to The Bridge House Public House And Adjoining Barn and Ockwells Park. The nearest railway station is Maidenhead station, about 3.3 miles north of the centre. Other landmarks nearby include The Lexicon (3.9 miles south) and St Mark's Hospital (3.6 miles north). The countryside around Braywoodside includes Taplow Lake and Bray Pit.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Check with your local planning authority if your home is listed
- Ask a joiner to look at soft timber first
- Leave the new mastic unpainted
- Take care around the mastic when scraping paint
Avoid painting over the new mastic, which is the traditional advice. If you’re redecorating, ask us first.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.