Windsor and Maidenhead · England
Sand mastic for sash & case windows in Bray Wick, Windsor and Maidenhead
Sand mastic for Bray Wick, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Silicone on a period window that looks wrong
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
How we handle sand mastic in Bray Wick
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you have cement or filler used on old window joints that has cracked and gaps where the frame meets the masonry, we can put it right.
Homes in small places like Bray Wick often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Whatever the size of the job, it’s backed by our one-year guarantee in Bray Wick and across Windsor and Maidenhead.
- Place
- Bray Wick (SL6)
- Wider area
- Windsor and Maidenhead
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What sand mastic looks like in Bray Wick
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Dorney Court (about 1.8 miles east) nearby, there’s older building stock in the area around Bray Wick as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Holyport CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Maidenhead station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Bray Wick is about 2 miles south-east of Maidenhead, in Windsor and Maidenhead. Every kind of property in Bray Wick is covered for sand mastic. The work is guaranteed for a year. 57 places in Windsor and Maidenhead are on our list, large and small. You can also see our page for Reading, about 12 miles away.
We work across the SL6 postcode area for sand mastic. That includes homes and businesses on Windsor Road, Holyport Road and Upper Bray Road. Bray Wick is on the M4, which makes it straightforward to reach. Close by, we work in Boyn Hill (1 mile north-west), Cox Green (1 mile west), Maidenhead (2 miles north-west), Furze Platt (3 miles north-west) and Woolley Green (3 miles west). Further out, we also cover Windsor (4 miles south-east), North Ascot (6 miles south), Cookham (4 miles north), Dedworth (3 miles south-east), Broomhall (8 miles south-east) and South Ascot (7 miles south).
What’s near Bray Wick
Around Bray Wick, our work takes us to homes and buildings near Desborough College, The Belgian Arms and Braywick Park and the streets around them. For rail, the closest station is Maidenhead station, about 1.4 miles north-west of the centre. Nearby you’ll also find St Mark's Hospital (2.3 miles north-west) and Windsor Castle (4.7 miles east). The countryside around Bray Wick includes Taplow Lake and Weycock Hill.
Common problems we fix in Bray Wick
Water gets into small cracks in the mastic and loosens it further. Exposed elevations usually fail first.
These are the problems we’re asked about most:
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
Homes close to St Michael's Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before booking
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
- What happens if the job turns out different
- Are they insured?
Also near Bray Wick
More services for Bray Wick
What happens on the day
At the end, we look at the finished work together. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. For a village or hamlet like Bray Wick, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
If you’re in Bray Wick and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
Bray Wick questions
Do you cover smaller places like Bray Wick?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Bray Wick for sand mastic?
Yes, Bray Wick is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll talk you through it.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Landlords, agents and businesses in Bray Wick
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Letting agents and landlords in Bray Wick can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
What the job involves on each surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
Stone surrounds
The stone is treated with care while raking out the old mastic.
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Keep modern sealant off the mastic
- Don’t paint over the new mastic
- Keep sills and gutters clear so water drains away
- Sort the mastic before the decorators arrive
Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
Why act early in Bray Wick
New mastic over crumbling mastic will not hold. We remove the loose material first so the new mastic stays put. Older cottages and farmhouses around Bray Wick can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced or our reviews.