Hampshire · England
Sand mastic for sash & case windows in Ellingham, Hampshire
Sand mastic across Ellingham and nearby, with old sealant always removed completely.
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
- A silicone bead on a sash window that spoils the look
Why act early in Ellingham
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a small place like Ellingham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- We leave the area clean and tidy
- 20+ years of sealant experience
- ARBOMaster approved applicator
- 180+ five-star Google reviews
Read our cost guide and customer reviews.
Sand mastic for homes and businesses in Ellingham
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. If you have tired mastic found when preparing windows for paint and a silicone bead on a sash window that spoils the look, we can help, on brick reveals, sash and case windows and timber door frames alike.
In a village or hamlet like Ellingham, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, large or small.

- Where
- Ellingham (BH24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What else we do in Ellingham
When to call us in Ellingham
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
Keep an eye out for any of the following:
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
For an older house near a landmark such as Church of St Mary and All Saints, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- Whether VAT is included
- How hidden problems are handled
- How much experience the applicator has
- How the surfaces are prepared before sealing
The process
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows for a typical job. In a small place like Ellingham, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
Getting a quote
For sand mastic in Ellingham, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Related advice
Landlords, agents and businesses in Ellingham
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
For anyone letting property in or around Ellingham, several properties can be quoted together. Send us the addresses and the work at each.
What sand mastic looks like in Ellingham
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.
Managing a site like Ringwood School Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
Ellingham is in Hampshire. Ellingham gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Hampshire, we cover 683 places, Ellingham among them. Our Southampton page covers work nearby (18 miles or so).
Postcode districts we cover here for sand mastic: BH24. Nearby, we also carry out sand mastic in Blashford (1 mile south-east), Ibsley (1 mile north-east), Rockford (1 mile east), Harbridge (1 mile north) and Mockbeggar (1 mile north-east). Further out, we also cover Totton (13 miles east), Lymington (13 miles south-east), New Milton (10 miles south-east), Barton on Sea (11 miles south-east), Marchwood (15 miles east) and Ashley (10 miles south-east).
Near you in Ellingham
In Ellingham, that means homes and buildings near The Old Beams Inn and the streets around them. Other landmarks nearby include Fordingbridge Doll Museum (3.8 miles north) and St Leonard's Hospital (4.6 miles south-west). The countryside around Ellingham includes Linbrook Lake and Blashford Lakes.
Looking after it afterwards
After the cure time, these simple habits help:
- Plan mastic work ahead of painting
- Don’t paint over the new mastic
- Ask a joiner to look at soft timber first
- Make sure water runs off the sill
Do not 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.
Ellingham: your questions answered
Is Ellingham within the area you cover?
Yes, Ellingham is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What guarantee comes with sand mastic in Ellingham?
All our work, in Ellingham and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Can new sealant go over the old?
No. We remove every bit of old sealant first.
Do you work for letting agents?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we’ll talk you through it.
Is it possible to take out silicone and use sand mastic instead?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours per window, depending on the condition of the joints. We will give you a better idea when we quote.
What we can’t put right
A few problems are outside what sealant work can do:
- Sash cords, weights and draught-proofing of the sashes
- Decayed frames that need repair
- Masonry that needs repairing
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Timber door frames
- Sash and case windows
- Brick reveals
- Tenement windows
- Stone surrounds
- Period & listed homes
Surface by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
