Hampshire · England
Yateley Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Yateley, backed by a 12-month guarantee. Ask us for a quote.
- Cement or filler used on old window joints that has cracked
- Open joints round the window box
- Crumbling sand mastic round a window
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Around Yateley, failed sealant lets water into hidden places, like the floor under a bath, the back of a panel or the inside of a wall. Whatever the joint, failed sealant only gets worse.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
- We leave the area clean and tidy
- A 12-month guarantee on all work
Take a look at what affects the cost or what customers say.
Sand mastic in Yateley, done properly
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic is the traditional choice, and we can replace one with the other. Common call-outs are for modern sealant on a period surround and draughty sash windows at the surround, across period & listed homes, stone surrounds and tenement windows.
In a town like Yateley, the windows on the most exposed side of a house take the brunt of the rain, and that’s usually where the sealant gives up first. It’s worth looking at every frame, not just the one that leaks.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Yateley (GU46)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Yateley
Also in Yateley
Your questions about sand mastic in Yateley
Do you work for landlords with property near Sandhurst station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is there a guarantee on sand mastic in Yateley?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll advise.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Is it messy?
We keep the work tidy. We protect what’s around the joints.
What affects the cost of sand mastic
We quote each job individually. This is what makes a difference:
- The number of rooms or windows
- The number and length of the joints
- Whether there’s mould to deal with
- Access and height
Combining jobs into one visit is normally more efficient than separate visits. We will give you a clear quote for the lot.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- Where the property is
- The rough size of the job
- Any access issues, like height or stairs
- A few pictures by email, if you can
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
Landlord and commercial work in Yateley
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
If you manage several properties in or around Yateley, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Different surfaces, different methods
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Period and listed homes
A traditional finish suits a period property.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Inspect the joints round the windows every year or so
- Keep modern sealant off the mastic
- Sort the mastic before the decorators arrive
- Make sure water runs off the sill
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
Frames and glazing around Yateley
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Yateley School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Sandhurst station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Yateley is about 4 miles north-west of Farnborough, in Hampshire. We provide sand mastic to householders, landlords and businesses in Yateley and nearby. Our area takes in 683 places across Hampshire. Our Reading page covers work nearby (10 miles or so).
Every address in GU46 is covered for sand mastic. You will find streets such as Hall Lane, Calcott Park and Wistaria Lane, and we cover them all. Yateley is on the B3272, so it’s easy for us to get to. Other places close to Yateley include Darby Green (1 mile east), Eversley Cross (1 mile north-west), Little Sandhurst (1 mile north-east), Minley (2 miles south) and Eversley Centre (2 miles west). Within a short drive, we also cover Basingstoke (13 miles south-west), Farnborough (4 miles south-east), Fleet (4 miles south), Aldershot (7 miles south-east), Alton (14 miles south-west) and Tadley (13 miles west).
Local landmarks in Yateley
Around Yateley, our work takes us to homes and buildings near Dog & Partridge pub, Cranford Park Primary and Ambarrow Court, among other places. For rail, the closest station is Sandhurst station, roughly 1.3 miles north-east of the centre. Well-known places in the area include Staff College Museum (3.6 miles east) and Pinewood Hospital (3.6 miles north-east). Green spaces nearby include Horseshoe Lake and Hitches Hill.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
How it works
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a single window, longer for several in most cases. Parking in a town like Yateley is normally straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Mention any tricky access
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.