Hampshire · England
Sand Mastic in Little Somborne
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Little Somborne, with a 12-month guarantee on every job. Call for a quick quote.
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Sand mastic in Little Somborne, done properly
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. We work on timber door frames, stone surrounds and brick reveals, and people most often call us about mastic round period door frames that has failed and gaps where the frame meets the masonry.
Somewhere as small as Little Somborne, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, you get the same one-year guarantee.

- Where
- Little Somborne (SO20)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
We’ll always be straight with you, so here’s what new sealant will not do:
- Putty and glazing repairs
- Timber that has rotted
- Damaged stone surrounds
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Tenement windows
- Stone surrounds
- Timber door frames
- Sash and case windows
- Brick reveals
- Period & listed homes
What sand mastic looks like in Little Somborne
Compared with the north and west, the South East gets less rain, 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 All Saints Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. In and around Little Somborne, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Little Somborne is about 6 miles west of Winchester, in Hampshire. Little Somborne gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Little Somborne is one of 683 places in Hampshire where we work. We also work in Southampton, around 12 miles away.
Here we cover the SO20 postcode area for sand mastic. Local streets include Chalk Hill and Somborne Park Road. If you’re just outside Little Somborne, we cover Up Somborne (1 mile east), Ashley (1 mile south), King's Somborne (2 miles south-west), Lower Slackstead (5 miles south) and Braishfield (5 miles south). Further out, we also cover Winchester (6 miles east), Eastleigh (10 miles south-east), Andover (8 miles north), Totton (12 miles south), Chandler's Ford (8 miles south) and Hedge End (14 miles south-east).
Landmarks near Little Somborne
Well-known places in the area include Royal Hampshire County Hospital (5.6 miles east).
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- Working hours on commercial sites
- Whether the work is at height
- Mould in or behind the old joints
- Which sealant suits the joint
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
When you contact us, it’s useful to know:
- The problem you’ve noticed
- The rough size of the job
- The type of property
- Any previous sealing or DIY work
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Little Somborne, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Read more
Towns and villages near Little Somborne
Other services in Little Somborne
Common questions in Little Somborne
Is sand mastic in Little Somborne guaranteed?
All our work, in Little Somborne and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can you do sand mastic in Little Somborne?
Yes, Little Somborne is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Can you match the sealant colour?
In most cases you can choose. We’ll tell you which colours the right product comes in.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.
How long does the job take?
A typical job takes a few hours for a single window, longer for several, including the preparation. We will confirm how long when we quote.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Renew mastic before redecorating the windows
- Find out about consent before window work on a listed home
- Have rotten timber repaired before new mastic goes in
- Clear gutters so water does not pour onto the windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Surface by surface
Period and listed homes
A traditional finish suits a period property.
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
