Hampshire · England
Sand Mastic in Allbrook
Our applicators work in Allbrook on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Weathered mastic on the most exposed windows
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
Sand mastic in Allbrook, done properly
Across Allbrook, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on brick reveals, stone surrounds and timber door frames, and the jobs we see most are crumbling sand mastic round a window and draughts and rain around sash boxes.
Many houses in smaller places like Allbrook have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Allbrook (SO53, SO50, SO21)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work starts. The work usually takes a few hours for a single window, longer for several. Parking around Allbrook is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Mention any tricky access
- Tell us about any water getting in
- Clear the area around the work
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Read more
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Broken panes
- Decisions on consent for listed homes
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Sash and case windows
- Brick reveals
- Timber door frames
- Tenement windows
- Stone surrounds
- Period & listed homes
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Your questions about sand mastic in Allbrook
Is Allbrook in your area for sand mastic?
Yes. Our work covers London and the South East, and Allbrook is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Chandlers Ford station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear 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.
What does sand mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
How long will you be here?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we will say how long yours will take.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Is consent needed for window work on a listed home?
Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Surface by surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. Sand mastic is shaped by hand to suit.
Nearby places to Allbrook
More services for Allbrook
Allbrook homes and the weather
Historic houses like South Stoneham House (about 3.7 miles south) are a reminder that the area around Allbrook 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. London and the South East are among 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 St. Peter's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Scantabout Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Allbrook is about 1 mile east of Chandler's Ford, in Hampshire. Wherever you are in the SO53 postcode area, we can carry out sand mastic at your property. Allbrook is one of 683 towns and villages in Hampshire we cover.
All of SO53, SO50 and SO21 is covered for sand mastic, from the main roads to the quietest streets. Whether your property is on Verona Road, Apollo Road and Boyatt Lane or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Boyatt Wood (1 mile south), Highbridge (1 mile east), Lord's Wood (1 mile east), Chandler's Ford (1 mile west) and Hiltingbury (1 mile north-west). Larger places within reach include Winchester (5 miles north), Fareham (12 miles south-east), Totton (8 miles south-west), Hedge End (6 miles south-east), Romsey (5 miles west) and Hythe (9 miles south).
Near you in Allbrook
Locally, jobs take us to homes and businesses close to Thornden School, The Otter pub and Thornden School. The closest station to Allbrook is Chandlers Ford station, roughly 1.3 miles west. Well-known places in the area include Eastleigh Museum (1.4 miles south) and Moorgreen Hospital (4.5 miles south). Not far away are Flexford Nature Reserve.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Keep modern sealant off the mastic
- Leave the new mastic unpainted
- Check with your local planning authority if your home is listed
- Make sure water runs off the sill
Avoid painting over the new mastic, as traditional guidance advises. If you are redecorating, ask us first.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
What we’re called out for in Allbrook
Timber frames move with the seasons. The movement cracks the mastic little by little.
People generally contact us when they notice one of these:
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
If you let a flat or house near Chandlers Ford station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
- Whether they’re fully insured
- Who turns up on the day
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.