Reading · England
Sand Mastic in Trash Green
Our applicators work in Trash 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 and a one-year guarantee.
- Old cement repairs round a window that have failed
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
What we do, step by step
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the job takes a few hours per window, depending on the condition of the joints for a typical job. Somewhere as small as Trash Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before we start.
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About our sand mastic in Trash Green
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. If you’re dealing with weathered mastic on the most exposed windows and window mastic to renew ahead of painting, we can help, on period & listed homes, brick reveals and sash and case windows alike.
Around Trash Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Whatever the size of the job, it’s backed by our one-year guarantee in Trash Green and across Reading.
- Location
- Trash Green (RG30)
- Wider area
- Reading
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Your questions about sand mastic in Trash Green
Do you work for landlords with property near Theale station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Will you come out to Trash Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
When will the new mastic be hard?
Not right away. The skin forms first, and the full set comes later and we’ll give you an idea for your job.
Will there be a smell?
Some sealants have a smell while they cure. Ventilation helps.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can new sealant go over the old?
No, it will not last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
If you’re 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 fails, we can still redo it.
Landlord and commercial work in Trash Green
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Different surfaces, different methods
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Signs you need sand mastic in Trash Green
Over the years, sand mastic weathers. It dries out, cracks and loses its grip on the stone or timber.
Common reasons people contact us include:
- Silicone on a period window that looks wrong
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
- Tired mastic found when preparing windows for paint
For landlords with property near Theale station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- The length of the guarantee
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Find out about consent before window work on a listed home
- Leave the new mastic unpainted
- Clear gutters so water doesn’t pour onto the windows
- Keep modern sealant off the mastic
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
How we quote for sand mastic
Jobs vary more than people expect. What affects the quote:
- How many areas need sealing
- Working hours on commercial sites
- The amount of work
- Whether the work is at height
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
To help us quote quickly, let us know:
- The rough size of the job
- The problem you’ve noticed
- Photos by email, if that’s easy
- How we’d reach the joints
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or email us.
Frames and glazing around Trash Green
With historic houses such as Mapledurham House (about 4.7 miles north) nearby, there’s older building stock in the area around Trash 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Church of St Mary the Virgin, the joint between an old wall and a newer frame is generally the first place rain gets in. Schools such as Burghfield St Mary's C.E. Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Trash Green is about 4 miles south-west of Reading, in Reading. From the centre of Trash Green to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our Reading coverage runs to 34 places, and Trash Green is one of them.
We cover every part of RG30 for sand mastic and the streets around it. You will find streets such as Bennett's Hill and Theale Road, all of which we cover. We also cover the places around Trash Green: Burghfield (1 mile south), Sheffield Bottom (1 mile north-west), Burghfield Hill (1 mile south), Sulhamstead Bannister Upper End (1 mile west) and Sulhamstead Abbots (1 mile south-west). Larger places within reach include Caversham (6 miles north-east), Norcot (3 miles north-east), West Reading (4 miles north-east), Tilehurst Within (3 miles north), Shinfield (5 miles east) and Arborfield Garrison (7 miles east).
Local landmarks in Trash Green
Around Trash Green, our work takes us to homes and buildings near Fox & Hounds pub and The Willink School, among other places. The nearest railway station is Theale station, roughly 1.4 miles north-west of the centre. Well-known places in the area include Thames Valley Police Museum (1 mile west) and Battle Hospital (3.8 miles north-east). Open spaces near Trash Green include Hosehill Lake and Fobney Island Wetland Reserve.