Wokingham · England
Sand mastic for sash & case windows in Woosehill, Wokingham
Our applicators work in Woosehill 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 and every job guaranteed for a year.
- Window mastic to renew ahead of painting
- Cement or filler used on old window joints that has cracked
- Mastic worn away on windows facing the weather
The process
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It usually takes anything from a few hours to a full day, depending on how many windows. A visit to Woosehill is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
- Keep pets and children clear of the area while we work
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work.
Related advice
Sand mastic in Woosehill, done properly
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. We work on sash and case windows, tenement windows and period & listed homes, and common reasons people get in touch are a silicone bead on a sash window that spoils the look and old sand mastic that has cracked, crumbled or fallen out.
In a smaller place like Woosehill, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. That is hard on the mastic around frames and sills.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Woosehill (RG41)
- Wider area
- Wokingham
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Woosehill
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. Around Woosehill, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and give you a clear quote before we start.
What you get with us
- Any old sealant cut out fully, not covered over
- Experience in homes, commercial sites and hotels
- 12-month guarantee on every job
- Trusted Arbo and Everbuild sealants
See our cost guide or customer reviews.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Look over the window mastic once a year
- Avoid patching sand mastic with silicone
- Make sure water runs off the sill
- Have rotten timber repaired before new mastic goes in
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
Your questions about sand mastic in Woosehill
Is Woosehill in your area for sand mastic?
Yes. Our work covers London and the South East, and Woosehill is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Wokingham station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is it possible to take out silicone and use sand mastic instead?
Yes, we do this often. All the old silicone is removed first so the mastic can sit properly.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will tell you what to expect for your job.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Putty and glazing repairs
- Sashes that need overhauling
- Decayed frames that need repair
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Sash and case windows
- Stone surrounds
- Tenement windows
- Period & listed homes
- Timber door frames
- Brick reveals
Windows and doors in Woosehill
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Woosehill Community Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Wokingham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Windmill Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Woosehill is about 1 mile west of Wokingham, in Wokingham. Jobs in Woosehill get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 35 towns and villages across Wokingham. You can also see our page for Reading, roughly 6 miles from Woosehill.
Every address in RG41 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Heron Road, Arthur Road and Heelas Road and the roads around them. Neighbouring places we cover for sand mastic include Wokingham (1 mile east), Emmbrook (1 mile north), Sindlesham (1 mile north-west), Winnersh (2 miles north-west) and Hurst (3 miles north). Larger places within reach include Reading (6 miles north-west), Earley (4 miles north-west), Crowthorne (4 miles south-east), Lower Earley (3 miles west), Newtown (5 miles north-west) and Coley Park (6 miles north-west). Being one of Wokingham’s larger places, Woosehill has every kind of property, from flats to offices.
What’s near Woosehill
We work in homes and buildings around The Emmbrook School and Ye Olde Leathern Bottel pub. For rail, the closest station is Wokingham station, about 0.7 miles east. A little further out are Wokingham Hospital (0.6 miles east) and Berkshire Library & Museum of Freemasonry (1.5 miles north-west). Open spaces near Woosehill include Holt Copse & Joel Park and Sonning Hill.
More services for Woosehill
Quotes for sand mastic in Woosehill
We do not publish a price list, because jobs vary so much. The quote depends on:
- Mould in or behind the old joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
There’s no need for technical detail. Just tell us:
- The problem you’ve noticed
- Where the job is, and your postcode
- The rough size of the job
- If it’s domestic, commercial or a hotel
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
DIY versus a professional finish
If you do try it yourself, take your time over the 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.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.