Hampshire · England
Sand mastic for sash & case windows in East Anton, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in East Anton and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
For landlords and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
Sand mastic in East Anton, done properly
Across East Anton, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you’re dealing with gaps where the frame meets the masonry and mastic worn away on windows facing the weather, we can put it right, on timber door frames, period & listed homes and stone surrounds alike.
Houses in smaller places like East Anton can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- East Anton (SP11)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Check with your local planning authority if your home is listed
- Get any rot dealt with first
- Go gently near the mastic when preparing windows
- Clear gutters so water doesn’t pour onto the windows
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours per window, depending on the condition of the joints. A visit to East Anton is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Related advice
Common questions in East Anton
Do you cover smaller places like East Anton?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Andover station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
Should I use sand mastic or silicone?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames generally get a flexible sealant.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.
How do I get a quote for sand mastic in East Anton?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or email us and tell us what needs doing and where.
What affects the cost of sand mastic
You’ll get a clear quote before we start. It takes into account:
- Any mould that needs treating
- When we can work, for business premises
- Whether the work is at height
- The number of rooms or windows
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Helping us quote
To make quoting easier, please include:
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- A few pictures by email, if you can
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details, and photos are welcome.
How the job changes by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Honest limits
It helps to know what we cannot do too:
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
- Decayed frames that need repair
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in East Anton
- Timber door frames
- Sash and case windows
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows
Why deal with it now?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In an older home around East Anton, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
Why book with us
- Fully insured
- Rated 4.9 stars on Google
- Homes, businesses and hotels
- We never seal over old sealant
Take a look at what affects the cost or our reviews.
Places near East Anton
Also in East Anton
Windows and doors in East Anton
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Endeavour Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as St Paul Church Centre, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Andover station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
East Anton is about 1 mile north-east of Andover, in Hampshire. For sand mastic in and around East Anton, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base, East Anton included. We cover 683 towns and villages across Hampshire, large and small. Southampton is on our list too, about 22 miles from East Anton.
We work across the SP11 postcode area for sand mastic. If you need sand mastic at a property on Cobb Drive, Long Barn Road and Pasture Walk or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Knights Enham (1 mile north-west), Finkley (1 mile north-east), Finkley Down (1 mile south-east), Smannell (1 mile north-east) and Enham Alamein (1 mile north). Larger places within reach include Winchester (13 miles south-east), Hyde (13 miles south-east), Tidworth (9 miles west), Weeke (12 miles south-east), Kempshott (14 miles east) and Stanmore (13 miles south-east).
Local landmarks in East Anton
We work in homes and buildings around Winton Community Academy, The Oak pub and Winton Community Academy, among other places. The closest station to East Anton is Andover station, roughly 1.6 miles south-west. Nearby you will also find Andover War Memorial Hospital (1.5 miles south-west) and Finkley Down Farm Museum (0.6 miles south-east). Green spaces nearby include Mill Lake and Anton Lakes.