West Berkshire · England
Sand Mastic in Goddard's Green
Specialist sand mastic for Goddard's Green: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Gaps between timber frames and stone or brick
How we handle sand mastic in Goddard's Green
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, applied by hand. On period homes, it looks right where silicone wouldn’t. If you have gaps where the frame meets the masonry and gaps round a timber door in stone or brick, we can put it right, on stone surrounds, tenement windows and sash and case windows alike.
In a village or hamlet like Goddard's Green, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.

- Place
- Goddard's Green (RG7)
- Region
- West Berkshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
What we cannot put right
A few problems are outside what sealant work can do:
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Where we work in Goddard's Green
- Sash and case windows
- Timber door frames
- Period & listed homes
- Brick reveals
- Stone surrounds
- Tenement windows
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a single window, longer for several. Somewhere like Goddard's Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Related advice
Questions from Goddard's Green
Can you do sand mastic in Goddard's Green?
Yes, Goddard's Green is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Goddard's Green?
Yes. Goddard's Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
How do I get a quote for sand mastic in Goddard's Green?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or send us an email and tell us what needs doing and where.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Where do you work from?
We work from Crawley. We cover Goddard's Green and the rest of West Berkshire, along with the rest of our area.
Why deal with it now?
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Goddard's Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- Any old sealant cut out fully, not covered over
- 20+ years of sealant experience
- ARBOMaster approved applicator
- Full insurance on every job
Take a look at what affects the cost or customer reviews.
When to call us in Goddard's Green
Over the years, sand mastic weathers. It dries out, cracks and loses its grip on the stone or timber.
The most common problems we see are:
- Draughts and rain around sash boxes
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
- Old cement repairs round a window that have failed
Managing a site like Garland Junior School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- Who turns up on the day
- What preparation is included
- How long to leave it before use
- Whether all the old sealant comes out first
Frames and glazing around Goddard's Green
Historic houses like Stratfield Saye House (about 3.7 miles south-east) are a reminder that the area around Goddard's Green has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Mortimer station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Stratfield Saye House, about 3.7 miles south-east, is one of the historic houses in the wider area around Goddard's Green.
Goddard's Green is about 5 miles south-west of Reading, in West Berkshire. Wherever you are in the RG7 postcode area, we cover sand mastic for homes and businesses. We cover 155 towns and villages across West Berkshire, from the larger towns to small villages.
Here we cover the RG7 postcode area for sand mastic. Other places close to Goddard's Green include Wokefield (1 mile east), Burghfield Common (1 mile north-west), Stratfield Mortimer (1 mile south), Mortimer (2 miles south-west) and Mortimer West End (3 miles south-west). Larger places within reach include Newbury (12 miles west), Thatcham (9 miles west), Speenhamland (12 miles west), Spencers Wood (3 miles east), Calcot (3 miles north) and Shaw (12 miles west).
Around Goddard's Green
Typical jobs here are in homes near The Willink School, The Willink School and The Rising Sun pub. The closest station to Goddard's Green is Mortimer station, roughly 1.5 miles south of the centre. A little further out are Thames Valley Police Museum (2.3 miles north-west) and Beaumys Castle (2.9 miles south-east). Open spaces near Goddard's Green include Hosehill Lake and Fobney Island Wetland Reserve.
For landlords and businesses
Letting agents and landlords in Goddard's Green can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Also near Goddard's Green
More services for Goddard's Green
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
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 does not work out, we can still put it right.
