Hampshire · England
Sand Mastic in South Gorley
Our applicators work in South Gorley on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
Sand mastic in South Gorley
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you’re redecorating. If you have open joints round the window box and a silicone bead on a sash window that spoils the look, we can put it right, on timber door frames, stone surrounds and sash and case windows alike.
Mastic can only go onto a dry, clean joint, so window work in South Gorley is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Every job is covered by a 12-month guarantee, wherever you are in Hampshire.
- Place
- South Gorley (SP6)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Leave it or put it right?
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry, so dealing with it now protects both. In a small place like South Gorley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why South Gorley clients choose us
- One-year guarantee on every job
- 180+ five-star Google reviews
- We never seal over old sealant
- Arbo and Everbuild products
When to call us in South Gorley
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
People generally contact us when they notice something like this:
- Mastic worn away on windows facing the weather
- Open joints round the window box
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
If you look after a building such as Hyde Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Is VAT in the price?
- What preparation is included
- When the joint can take water or movement
- Which colour the sealant will be
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Renew mastic before redecorating the windows
- Avoid patching sand mastic with silicone
- Ask us before painting near the mastic
- Find out about consent before window work on a listed home
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
How the visit works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Somewhere like South Gorley 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 look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
How to get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
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More services for South Gorley
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for.
Your questions about sand mastic in South Gorley
Is South Gorley within the area you cover?
Yes. South Gorley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is sand mastic in South Gorley guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or email us with a short description of the job.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
How long will you be here?
That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
Sand mastic in South Gorley: local notes
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.
For an older house near a landmark such as Church of the Holy Ascension, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
South Gorley is in Hampshire. We provide sand mastic to homes and businesses in South Gorley and the surrounding area, as part of our work across Hampshire. South Gorley is one of 683 towns and villages in Hampshire we cover. You can also see our page for Southampton, about 16 miles away.
Postcode districts we cover here for sand mastic: SP6. Nearby, we also carry out sand mastic in Mockbeggar (1 mile south), Ibsley (1 mile south-west), Harbridge (1 mile west), Rockford (1 mile south) and Linwood (2 miles east). Larger places within reach include Totton (12 miles east), Lymington (14 miles south-east), Romsey (14 miles north-east), New Milton (11 miles south-east), Ringwood (3 miles south) and Barton on Sea (12 miles south-east).
What’s near South Gorley
Nearby you will also find Fordingbridge Doll Museum (2.4 miles north) and Godshill Castle Hill (3.4 miles north). The countryside around South Gorley includes Blashford Lakes and Linbrook Lake.
Different surfaces, different methods
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
