Windsor and Maidenhead · England
Sand Mastic in Pinkneys Green
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Pinkneys Green. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mastic dropping out of the joint
- Mastic worn away on windows facing the weather
- Draughty sash windows at the surround
How we handle sand mastic in Pinkneys Green
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you have mastic that needs renewing before redecorating and old cement repairs round a window that have failed, we can put it right, whatever the surface.
Many houses in smaller places like Pinkneys Green have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.

- Place
- Pinkneys Green (SL6)
- Region
- Windsor and Maidenhead
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Pinkneys Green
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- The number and length of the joints
- Whether the work is at height
- Whether old sealant or filler has to be cut out
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
- Roughly how big the job is
We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Honest limits
It helps to know what we can’t do too:
- Timber that has rotted
- Masonry that needs repairing
- Sashes that need overhauling
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Brick reveals
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows
- Stone surrounds
Places near Pinkneys Green
What else we do in Pinkneys Green
Common problems we fix in Pinkneys Green
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
The most common problems we see are:
- Open joints round the window box
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
- Tired mastic found when preparing windows for paint
In the older streets around Church of St. James the Less, the joint between an old wall and a newer frame is usually the first place rain gets in.
What your quote should include
- What the quote includes, VAT included or not
- What preparation is included
- What the cure time is
- What insurance they hold
Your questions about sand mastic in Pinkneys Green
Will you come out to Pinkneys Green?
Yes, Pinkneys Green is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do sand mastic in Pinkneys Green?
Yes. We work across London and the South East, and Pinkneys Green is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear price.
Do you have insurance?
Yes. Full insurance covers our work.
How do I get a quote for sand mastic in Pinkneys Green?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Where are you based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can you replace silicone on a period window with sand mastic?
Generally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. Homes in smaller places like Pinkneys Green can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Pinkneys Green
- Experience in homes, commercial sites and hotels
- We never seal over old sealant
- An ARBOMaster approved applicator
- 12-month guarantee on every job
Read our cost guide or customer reviews.
What sand mastic looks like in Pinkneys Green
Historic houses like Harleyford Manor (about 2.6 miles north-west) are a reminder that the area around Pinkneys Green 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Furze Platt station? Then any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Courthouse Junior School, the mastic around its windows and doors needs looking after like any other building’s.
Pinkneys Green is about 1 mile north-west of Maidenhead, in Windsor and Maidenhead. Every kind of property in Pinkneys Green is covered for sand mastic. The work is guaranteed for a year. Across Windsor and Maidenhead, we cover 57 places, and Pinkneys Green is one of them. Our Reading page covers work nearby.
Work in SL6 works the same way as everywhere else we cover. That includes homes and businesses on Lee Lane, Bix Lane and Edith Road. If you’re just outside Pinkneys Green, we cover Stubbings (1 mile west), Furze Platt (1 mile east), Maidenhead (1 mile south-east), Holloway (1 mile south-west) and Burchett's Green (1 mile west). We also work in nearby towns such as Windsor (7 miles south-east), North Ascot (8 miles south), Dedworth (6 miles south-east), Broomhall (11 miles south-east), South Ascot (10 miles south-east) and Old Windsor (9 miles south-east).
Landmarks near Pinkneys Green
Around Pinkneys Green, our work takes us to homes and buildings near St Piran's School, Newlands Girls' School and The Robin Hood pub, among other places. For rail, the closest station is Furze Platt station, about 1.4 miles east of the centre. A little further out are St Mark's Hospital (0.8 miles south-east) and The Reitlinger Bequest Museum (2.5 miles east). The countryside around Pinkneys Green includes Taplow Lake and Carpenter's Wood.
Looking after it afterwards
Aftercare is simple:
- Go gently near the mastic when preparing windows
- Have rotten timber repaired before new mastic goes in
- Look over the window mastic once a year
- Find out about consent before window work on a listed home
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
What the job involves on each surface
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several. For a job in Pinkneys Green, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
Ask for a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
