Windsor and Maidenhead · England
Sand mastic for sash & case windows in Oakley Green, Windsor and Maidenhead
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Oakley Green and across Windsor and Maidenhead. Fully insured, ARBOMaster approved and guaranteed for a year.
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
About our sand mastic in Oakley Green
Silicone on a period window often looks wrong and does not suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. We work on sash and case windows, brick reveals and timber door frames, and common reasons people get in touch are draughts and rain around sash boxes and old sand mastic that has cracked, crumbled or fallen out.
Homes in small places like Oakley Green often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Oakley Green (SL4)
- Wider area
- Windsor and Maidenhead
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. Older cottages and farmhouses around Oakley Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
Why us?
- A 12-month guarantee on all work
- Homes, businesses and hotels
- ARBOMaster approved applicator
- Neat joints and a tidy finish
Read what affects the cost and customer reviews.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you are 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 fails, we can still redo it.
When something else is needed
We will always be straight with you, so here’s what sealant can’t fix:
- Decisions on consent for listed homes
- Sashes that rattle, stick or will not open
- Rotten sashes, sills or window boxes (a joiner’s job)
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Oakley Green
- Brick reveals
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
What the job involves on each surface
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
How we quote for sand mastic
Your quote is based on your job. We look at:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The number and length of the joints
- How many rooms, windows or areas are involved
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
What we need to know
Photos help, but a description is a good start. Please mention:
- Pictures of the joints, sent by email
- If someone has resealed it before
- Where the property is
- How we’d reach the joints
If you are in Oakley Green and need sand mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Windows and doors in Oakley Green
With historic houses such as St Leonard's Hill (about 1 mile south-east) nearby, there’s older building stock in the area around Oakley Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Windsor & Eton Central station, older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Alexander First School, larger buildings have plenty of frames, and the mastic around each one ages.
Oakley Green is about 1 mile west of Windsor, in Windsor and Maidenhead. Whether you’re in the middle of Oakley Green or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 57 towns and villages across Windsor and Maidenhead. We also work in Reading, around 14 miles away.
Jobs for sand mastic in SL4 works the same way as everywhere else we cover. Whether your property is on Bishops Farm Close, Dedworth Road and Oakley Green Road or anywhere close by, we can help. If you are just outside Oakley Green, we cover Dedworth (1 mile east), Water Oakley (1 mile north-west), Boveney (1 mile north-east), Fifield (1 mile west) and Windsor (1 mile east). Within a short drive, we also cover Maidenhead (4 miles north-west), Boyn Hill (4 miles north-west), North Ascot (4 miles south), Cookham (6 miles north-west), Furze Platt (5 miles north-west) and Broomhall (6 miles south).
Around Oakley Green
Locally, jobs take us to homes and businesses close to The Greene Oak pub, Sutherland Grange and Windsor Girls' School, among other places. For rail, the closest station is Windsor & Eton Central station, about 2.3 miles east. Well-known places in the area include Windsor Castle (2.6 miles east) and The History On Wheels Museum (2.1 miles north-east). The countryside around Oakley Green includes Taplow Lake and Bray Pit.
Do you need sand mastic in Oakley Green?
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
If you can see any of these, it’s time to have the joints looked at:
- Failed mastic on an exposed elevation
- A silicone bead on a sash window that spoils the look
- Tired mastic found when preparing windows for paint
- Patchy fillers round a sash window
If you live in an older home near All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- Whether they seal over old material or remove it
- What product goes in the joint
- What insurance they hold
- How long to leave it before use
How the visit works
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours for a single window, longer for several. Somewhere like Oakley Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- Move anything stored near the joints
Ask for a quote
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
What else we do in Oakley Green
Questions from Oakley Green
I let a flat near Windsor & Eton Central station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Will you come out to Oakley Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
What guarantee comes with the work?
There’s a 12-month guarantee on every job.
Do you offer different sealant colours?
Normally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.