Hampshire · England
Ellisfield Sand Mastic
Sand mastic for Ellisfield and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
How the job changes by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
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.
About our sand mastic in Ellisfield
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you are dealing with window mastic to renew ahead of painting and cement or filler used on old window joints that has cracked, we can put it right, on sash and case windows, stone surrounds and tenement windows alike.
Mastic can only go onto a dry, clean joint, so window work in Ellisfield is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes as standard.

- Where
- Ellisfield (RG25)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Leave the new mastic unpainted
- Don’t run silicone over sand mastic
- Clear gutters so water does not pour onto the windows
- Go gently near the mastic when preparing windows
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Landlord and commercial work in Ellisfield
For anyone letting property in or around Ellisfield, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
How the visit works
On the day, we look over the joints with you first. We protect the surfaces around the joints before work begins. The work generally takes a few hours per window, depending on the condition of the joints. Somewhere like Ellisfield needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- 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 finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Advice
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sash cords, weights and draught-proofing of the sashes
- Putty and glazing repairs
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Brick reveals
- Timber door frames
- Tenement windows
- Sash and case windows
Ellisfield questions
I let a flat near Basingstoke station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Is Ellisfield in your area for sand mastic?
Yes, Ellisfield 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.
Do you guarantee sand mastic work?
You get our one-year guarantee to all our work.
How long will you be here?
It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. Timing depends on the weather and the joint.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
What we are called out for in Ellisfield
Timber frames move with the seasons. The movement cracks the mastic over time.
These are the problems we’re asked about most:
- Gaps round a timber door in stone or brick
- Cement or filler used on old window joints that has cracked
- Mastic worn away on windows facing the weather
- Mastic dropping out of the joint
For an older house near a landmark such as Church of St. Martin, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- Whether the sealant suits the joint
- When the joint can take water or movement
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
Why act early in Ellisfield
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. Older cottages and farmhouses around Ellisfield can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
- Rated 4.9 stars on Google
Ellisfield homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Hall Place (about 3.9 miles south) are a reminder that the area around Ellisfield has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Basingstoke station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Ellisfield is about 4 miles south of Basingstoke, in Hampshire. Homes, rented property, offices and hotels in Ellisfield can book us for sand mastic. Every job comes with our one-year guarantee. Ellisfield is one of 683 towns and villages in Hampshire where we work. You can also see our page for Reading, roughly 17 miles from Ellisfield.
We cover every part of RG25 for sand mastic and the streets around it. Local streets include Church Lane, Furzen Lane and College Lane, and we cover them all. Neighbouring places we cover for sand mastic include Upper Common (1 mile south-west), Nashes Green (2 miles east), Cliddesden (2 miles north), Viables (3 miles north) and Upton Grey (4 miles east). Larger places within reach include Basingstoke (4 miles north), Winchester (14 miles south-west), Farnborough (15 miles north-east), Fleet (12 miles north-east), Aldershot (14 miles east) and Alton (6 miles south-east).
Around Ellisfield
We work in homes and buildings around The Fox pub and the streets around them. For rail, the closest station is Basingstoke station, about 4.2 miles north. Nearby you will also find Basingstoke and North Hampshire Hospital (5.1 miles north) and Basing House (4.4 miles north). Not far away are The Mill Field and Farleigh Hill.
