Hampshire · England
Sand mastic for sash & case windows in Abbots Worthy, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Abbots Worthy, with a one-year guarantee on every job. Ask us for a quote.
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
- Modern sealant on a period surround
What the job involves on each surface
Stone surrounds
Stone openings are rarely perfectly straight, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. It’s renewed by hand.
Sand mastic in Abbots Worthy, done properly
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. Common call-outs are for gaps between timber frames and stone or brick and mastic that needs renewing before redecorating, across brick reveals, sash and case windows and stone surrounds.
Outdoor sealant needs dry, clean surfaces, so work on frames around Abbots Worthy is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, in Abbots Worthy and everywhere else we cover.
- Where
- Abbots Worthy (SO21)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Questions from Abbots Worthy
I let a flat near Winchester station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you cover smaller places like Abbots Worthy?
Yes. Abbots Worthy 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.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Is sand mastic better than silicone for my windows?
It depends on the window. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Abbots Worthy.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
Leave it or put it right?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like Abbots Worthy, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start, so you know where you stand.
Why book with us
- 180+ five-star Google reviews
- Approved under the ARBOMaster scheme
- Experience in homes, commercial sites and hotels
- Tidy, careful work
See what affects the cost and our reviews.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Find out about consent before window work on a listed home
- Make sure water runs off the sill
- Do not run silicone over sand mastic
- Get any rot dealt with first
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
How the visit works
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job usually takes a few hours for a single window, longer for several, and we tell you how long to leave it before we go. In a small place like Abbots Worthy, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- 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
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
Ask for a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Advice
Common problems we fix in Abbots Worthy
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
These are the problems we are asked about most:
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
Schools such as Kings Worthy Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What happens if the job turns out different
- Whether you can choose the colour
- What preparation is included
- Whether VAT is included
How we quote for sand mastic
The price is agreed before any work begins. It’s based on:
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- How easy the joints are to reach
- Which sealant suits the joint
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Helping us quote
When you call or email, these details help:
- Where the property is
- If someone has resealed it before
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or email us.
Abbots Worthy homes and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Winchester station? Then any sash windows need sound mastic to keep draughts and rain out.
Abbots Worthy is about 3 miles north-east of Winchester, in Hampshire. For sand mastic in and around Abbots Worthy, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We are based in Crawley and cover Hampshire. Across Hampshire, we cover 683 places, and Abbots Worthy is one of them. You can also see our page for Southampton, roughly 13 miles from Abbots Worthy.
Jobs for sand mastic in SO21 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Park Lane, Basingstoke Road and Mill Lane or a nearby road, our applicators can take on the job. If you are just outside Abbots Worthy, we cover Kings Worthy (1 mile south-west), Easton (1 mile south-east), Martyr Worthy (2 miles east), Winnall (2 miles south) and Itchen Abbas (2 miles east). Further out, we also cover Basingstoke (14 miles north-east), Winchester (3 miles south-west), Eastleigh (9 miles south), Andover (12 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south-west).
Local landmarks in Abbots Worthy
Around Abbots Worthy, our work takes us to homes and buildings near Henry Beaufort School and The Cart And Horses Public House and the streets around them. The closest station to Abbots Worthy is Winchester station, about 2.2 miles south-west of the centre. A little further out are Wolvesey Castle (2.4 miles south) and Royal Observer Corps Museum (1.4 miles south-west). Green spaces nearby include Winnall Moors and Twyford Down.