Hampshire · England
Sand Mastic in Lower Upham
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Lower Upham. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Lower Upham, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
How to get a quote
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.
Advice
How we handle sand mastic in Lower Upham
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. If you have old sand mastic that has cracked, crumbled or fallen out and gaps between timber frames and stone or brick, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Lower Upham is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes as standard, so you are covered after we have gone.
- Location
- Lower Upham (SO32)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of sand mastic
Jobs vary more than people expect. The main factors:
- When we can work, for business premises
- Which sealant suits the joint
- Whether the work is at height
- Whether there’s mould to deal with
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Any access issues, like height or stairs
- Photos by email, if that is easy
- The address or postcode of the job
- Whether it has been sealed before
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before we start.
What we are called out for in Lower Upham
Rain on the window surround works into any crack and loosens it further. Exposed elevations usually fail first.
People generally contact us when they notice something like this:
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
If you let a flat or house near Hedge End station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- How long to leave it before use
- What insurance they hold
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Your questions about sand mastic in Lower Upham
Do you cover Lower Upham for sand mastic?
Yes. Our work covers London and the South East, and Lower Upham is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Hedge End station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you guarantee sand mastic work?
Every job comes with our one-year guarantee.
When will the new mastic be hard?
Not right away. The skin forms first, and the full set comes later, and we will tell you what to expect.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.
What sand mastic looks like in Lower Upham
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.
Managing a site like Upham Church of England Aided Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Lower Upham is about 4 miles east of Eastleigh, in Hampshire. We provide sand mastic to homes and businesses in Lower Upham and nearby, as part of our work across Hampshire. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. You can also see our page for Southampton, about 7 miles away.
Jobs for sand mastic in SO32 works the same way as everywhere else we cover. We cover properties on Upham Street, Winchester Road and Portsmouth Road and the roads around them. We also cover the places around Lower Upham: Wintershill (1 mile south), Upham (1 mile north-east), Durley Street (1 mile south), Ashton (1 mile east) and Fair Oak (2 miles west). Larger places within reach include Winchester (6 miles north-west), Gosport (13 miles south), Havant (14 miles south-east), Eastleigh (4 miles west), Fareham (9 miles south) and Horndean (11 miles south-east).
Near you in Lower Upham
In Lower Upham, that means homes and buildings near Wyvern Technology College, among other places. The closest station to Lower Upham is Hedge End station, roughly 3.4 miles south-west. Nearby you’ll also find Bishop's Waltham Museum (2.2 miles south-east) and Moorgreen Hospital (4.4 miles south-west). For a walk, there’s Bishops Waltham Branch LNR and Twyford Down.
Towns and villages near Lower Upham
What else we do in Lower Upham
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Letting agents and landlords in Lower Upham can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Inspect the joints round the windows every year or so
- Plan mastic work ahead of painting
- Don’t run silicone over sand mastic
- Go gently near the mastic when preparing windows
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Why deal with it now?
If you are redecorating, renew the mastic first. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. In a small place like Lower Upham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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 play a part, and we will explain the quote if you ask.
What you get with us
- Old sealant always removed completely
- Neat joints and a tidy finish
- Trusted Arbo and Everbuild sealants
- 20+ years of sealant experience
Take a look at our cost guide or what customers say.