Buckinghamshire · England
Bovingdon Green Sand Mastic
Our applicators work in Bovingdon Green on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Mastic worn away on windows facing the weather
- Draughty sash windows at the surround
- Open joints round the window box
Sand mastic in Bovingdon Green, done properly
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We work on period & listed homes, timber door frames and stone surrounds, and common reasons people get in touch are old cement repairs round a window that have failed and tired mastic found when preparing windows for paint.
In a village or hamlet like Bovingdon Green, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months, in Bovingdon Green and everywhere else we cover.
- Place
- Bovingdon Green (SL7)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Bovingdon Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Related advice
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Masonry that needs repairing
- Rotten sashes, sills or window boxes (a joiner’s job)
- Planning or listed building consent (your local planning authority decides)
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before booking.
Joints and surfaces we work on
- Sash and case windows
- Brick reveals
- Tenement windows
- Stone surrounds
- Period & listed homes
- Timber door frames
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Make sure water runs off the sill
- Leave the new mastic unpainted
- Check with your local planning authority if your home is listed
- Look over the window mastic once a year
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
When to call us in Bovingdon Green
Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.
It’s worth asking for a quote if you see:
- Mastic that needs renewing before redecorating
- Cement or filler used on old window joints that has cracked
- Draughty sash windows at the surround
- Open joints round the window box
Rented homes near Marlow station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- Is the old sealant removed completely?
- Who turns up on the day
- How the colour is chosen
- What preparation is included
Frames and glazing around Bovingdon Green
With historic houses such as Harleyford Manor (about 1.7 miles south) nearby, there’s older building stock in the area around Bovingdon 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. 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.
If you live in an older home near Congregational Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Spinfield School, larger buildings have plenty of frames, and the mastic around each one ages.
Bovingdon Green is about 1 mile west of Marlow, in Buckinghamshire. Wherever you are in the SL7 postcode area, we cover sand mastic for homes and businesses. 263 places in Buckinghamshire are on our list, from the larger towns to small villages. For nearby work, see our Reading page.
Here we cover the SL7 postcode area for sand mastic. Neighbouring places we cover for sand mastic include Marlow Common (1 mile west), Mundaydean Bottom (1 mile north), Chisbridge Cross (1 mile north-west), Danesfield (2 miles south-west) and Bockmer End (2 miles south-west). Further out, we also cover High Wycombe (4 miles north-east), Chesham (12 miles north-east), Amersham (11 miles north-east), Beaconsfield (7 miles east), Chalfont St Peter (11 miles east) and Princes Risborough (10 miles north).
Near you in Bovingdon Green
Typical jobs here are in homes near Sir William Borlase's Grammar School and The Royal Oak pub, among other places. For rail, the closest station is Marlow station, about 1.6 miles east of the centre. Other landmarks nearby include Marlow Community Hospital (1.4 miles east) and High Wycombe Castle (4.4 miles north-east). Green spaces nearby include Carpenter's Wood.
Surface by 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
We rake out the old mastic and pack deep voids before the new mastic goes in.
Places near Bovingdon Green
Other services in Bovingdon Green
Questions from Bovingdon Green
I let a flat near Marlow station. Can you help?
Yes. We work for letting agents and landlords as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Bovingdon Green?
Yes. Bovingdon Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
How long does sand mastic take?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Can you replace silicone on a period window with sand mastic?
Usually, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
What information do you need?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a small place like Bovingdon Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Why choose Mr Mastic in Bovingdon Green
- Old sealant always removed completely
- We leave the area clean and tidy
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
Take a look at what affects the cost or customer reviews.