Hampshire · England
Sand mastic for sash & case windows in Ashton, Hampshire
Specialist sand mastic for Ashton: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Draughts and rain around sash boxes
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
Why it’s worth doing now in Ashton
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. In a small place like Ashton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, 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 us?
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- 180+ five-star Google reviews
- ARBOMaster approved applicator
About our sand mastic in Ashton
We renew sand mastic around sash windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you are dealing with window mastic to renew ahead of painting and patchy fillers round a sash window, we can help, on sash and case windows, tenement windows and brick reveals alike.
In a village or hamlet like Ashton, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or drop us an email.
- Place
- Ashton (SO32)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Windows and doors in Ashton
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Peter, the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Bishops Waltham Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
Ashton is about 5 miles north-east of Hedge End, in Hampshire. For sand mastic in and around Ashton, please phone 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Hampshire. Our Hampshire coverage runs to 683 places, Ashton among them. For nearby work, see our Southampton page (8 miles or so).
Postcode districts we cover here for sand mastic: SO32. If you are just outside Ashton, we cover Upham (1 mile north-west), Bishop's Waltham (1 mile south), Durley Street (1 mile south-west), Lower Upham (1 mile west) and Wintershill (2 miles west). We also work in nearby towns such as Winchester (8 miles north-west), Gosport (12 miles south), Havant (13 miles south-east), Eastleigh (5 miles west), Fareham (8 miles south) and Horndean (10 miles south-east).
Around Ashton
We work in homes and buildings around Swanmore College of Technology. For rail, the closest station is Botley station, about 4 miles south-west of the centre. Well-known places in the area include Bishop's Waltham Museum (1.1 miles south) and Moorgreen Hospital (5.3 miles south-west). The countryside around Ashton includes Beacon Hill and Bishops Waltham Branch LNR.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
Landlords, agents and businesses in Ashton
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and agents in Ashton can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Crumbling stone or brickwork round the window
- Sashes that rattle, stick or will not open
- Putty and glazing repairs
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
Joints and surfaces we work on
- Stone surrounds
- Brick reveals
- Sash and case windows
- Tenement windows
- Period & listed homes
- Timber door frames
Questions from Ashton
Do you cover smaller places like Ashton?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Botley station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
Is sand mastic better than silicone for my windows?
It depends on the window. Period windows in stone or brick usually suit sand mastic and newer frames generally get a flexible sealant.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s applied by hand and shaped to suit the surround.
How the visit works
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Ashton, the journey is planned in advance: 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.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Preparing for the visit
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
Get a quote
If you are in Ashton and need sand mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Related advice
Common problems we fix in Ashton
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
Common reasons people contact us include:
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
For landlords with property near Botley station, any sash windows need sound mastic to keep draughts and rain out.
Before you book anyone
- How long the guarantee is
- How the colour is chosen
- Whether all the old sealant comes out first
- How hidden problems are handled
What affects the quote in Ashton
The quote reflects the job in front of us. We look at:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- Access and height
- Mould in or behind the old joints
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Asking for a quote
To help us quote quickly, please include:
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- A few pictures by email, if you can
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and give you a clear quote before work begins.