Windsor and Maidenhead · England
Sand mastic for sash & case windows in Fifield, Windsor and Maidenhead
Professional sand mastic in and around Fifield, with every bit of old sealant taken out first and a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
What happens on the day
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Fifield, 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.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Getting a quote
For sand mastic in Fifield, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Advice
How we handle sand mastic in Fifield
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. We work on brick reveals, tenement windows and timber door frames, and people most often call us about draughts and rain around sash boxes and silicone on a period window that looks wrong.
In a village or hamlet like Fifield, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee.
- Where
- Fifield (SL6)
- Region
- Windsor and Maidenhead
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Crumbling stone or brickwork round the window
- Cracked or broken glass
- Sashes that rattle, stick or won’t open
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Timber door frames
- Brick reveals
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Tenement windows
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Ask us before painting near the mastic
- Sort the mastic before the decorators arrive
- Inspect the joints round the windows every year or so
- Ask a joiner to look at soft timber first
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Leave it or put it right?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Fifield can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Homes, businesses and hotels
- Approved under the ARBOMaster scheme
- Anti-fungal silicone where joints get wet
- We’re fully insured
Different surfaces, different methods
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Quotes for sand mastic in Fifield
There’s no set price list, because jobs vary so much. What we look at:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Any working-time requirements on site
- How much there is to do
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.
Asking for a quote
When you call or email, these details help:
- A few pictures by email, if you can
- The address or postcode of the job
- Any access issues, like height or stairs
- What’s wrong with the joints now
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.
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 getting the depth right matters as much as the look.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Fifield questions
Do you work for landlords with property near Maidenhead station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Is Fifield within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What do you need from me for a quote?
A short description and the location. If we need more, we’ll ask.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Where is Mr Mastic based?
We work from Crawley. We cover Fifield and the rest of Windsor and Maidenhead, along with the rest of our area.
Do you guarantee sand mastic work?
Every job comes with our 12-month guarantee, and we are fully insured.
How long does sand mastic take to harden?
It skins over fairly quickly but takes longer to harden fully. We’ll explain what to expect before we leave.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Sand mastic in Fifield: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Dorney Court (about 1.7 miles north-east) nearby, there’s older building stock in the area around Fifield 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 landlords with property near Maidenhead station, older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Braywood CofE First School, larger buildings have plenty of frames, and the mastic around each one ages. 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.
Fifield is about 3 miles west of Windsor, in Windsor and Maidenhead. Anywhere in SL6, our applicators can take on sand mastic. Fifield is one of 57 places in Windsor and Maidenhead we cover for sand mastic. For nearby work, see our Reading page, about 12 miles away.
Postcode districts we cover here for sand mastic: SL6. Whether your property is on Meadow Way, Fifield Road and Stewart Close or anywhere close by, we can help. We also cover Water Oakley (1 mile north-east), Oakley Green (1 mile east), Dedworth (2 miles east), Boveney (2 miles east) and Cranbourne (3 miles south-east). We also work in nearby towns such as Maidenhead (3 miles north-west), Windsor (3 miles east), Boyn Hill (3 miles north-west), North Ascot (5 miles south), Cookham (5 miles north) and Furze Platt (4 miles north-west).
What’s near Fifield
In Fifield, that means homes and buildings near Hare and Hounds pub, Sutherland Grange and Holyport College and the streets around them. Fifield’s nearest station is Maidenhead station, roughly 2.8 miles north-west of the centre. Other landmarks nearby include King Edward VII Hospital (3.4 miles east) and The Reitlinger Bequest Museum (2.8 miles north). For a walk, there’s Bray Pit and Taplow Lake.