Hampshire · England
Sand Mastic in Winsor
Window and door surrounds in Winsor need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Mastic round period door frames that has failed
Surface by surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
How we handle sand mastic in Winsor
Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. Common call-outs are for tired mastic found when preparing windows for paint and mastic worn away on windows facing the weather, across stone surrounds, tenement windows and period & listed homes.
In a village or hamlet like Winsor, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or email us.
- Where
- Winsor (SO40)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Winsor
Also in Winsor
Keeping the joints in good condition
Looking after new joints is easy:
- Plan mastic work ahead of painting
- Avoid heavy scraping on the mastic joint
- Ask a joiner to look at soft timber first
- Look over the window mastic once a year
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
How the visit works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Somewhere like Winsor needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Read more
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
FAQs for Winsor
Do you cover Winsor for sand mastic?
Yes, Winsor is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing.
I let a flat near Ashurst New Forest station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
How much does sand mastic cost in Winsor?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Why deal with it now?
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Winsor, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- 20+ years of sealant experience
- We are fully insured
- Quality sealants from Arbo and Everbuild
- Anti-fungal silicone where joints get wet
See what affects the cost and our reviews.
Winsor homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Ashurst New Forest station, older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Copythorne CofE Infant School, the mastic around its windows and doors needs looking after like any other building’s.
Winsor is about 2 miles west of Totton, in Hampshire. Our applicators cover sand mastic for householders, landlords and businesses in Winsor and the surrounding area, as part of our work across Hampshire. Winsor is one of 683 places in Hampshire we cover. For nearby work, see our Southampton page.
Work in SO40 works the same way as everywhere else we cover. Local streets include Winsor Road, Winsor Lane and Pound Lane, and we cover them all. Close by, we work in Copythorne (1 mile north-west), Bartley (1 mile south-west), Netley Marsh (1 mile south-east), Cadnam (1 mile west) and Newbridge (1 mile north-west). Within a short drive, we also cover Winchester (14 miles north-east), Eastleigh (9 miles east), Chandler's Ford (8 miles north-east), Hedge End (11 miles east), Lymington (12 miles south) and Romsey (6 miles north-east).
Near you in Winsor
In Winsor, that means homes and buildings near Compass Inn, among other places. The nearest railway station is Ashurst New Forest station, roughly 2.7 miles south-east. Well-known places in the area include Tatchbury Mount Hospital (1 mile east) and Eling Experience (2.7 miles east). The countryside around Winsor includes Copythorne Common.
When it is not the sealant
We’ll always be straight with you, so here’s what new sealant will not do:
- Decayed frames that need repair
- Cracked or broken glass
- Decisions on consent for listed homes
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Period & listed homes
- Brick reveals
- Stone surrounds
- Sash and case windows
- Timber door frames
- Tenement windows
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.