Hampshire · England
Sand mastic for sash & case windows in Durley Street, Hampshire
Professional sand mastic in and around Durley Street, with old sealant always removed completely and a 12-month guarantee.
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
About our sand mastic in Durley Street
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. If you have patchy fillers round a sash window and tired mastic found when preparing windows for paint, we can help, whatever the surface.
Somewhere as small as Durley Street, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Every job is covered by our 12-month guarantee.
- Where
- Durley Street (SO32)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Landlords, agents and businesses in Durley Street
If you manage several properties in or around Durley Street, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Also near Durley Street
What else we do in Durley Street
How the job changes by surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
How we quote for sand mastic
We do not publish a price list. What we look at:
- The amount of work
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
A few things move the cost up or down: 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.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- A few pictures by email, if you can
- The type of property
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details, and photos are welcome.
Durley Street homes and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Hedge End station? Then any sash windows need sound mastic to keep draughts and rain out.
Durley Street is about 4 miles north-east of Hedge End, in Hampshire. If you need sand mastic in Durley Street, please phone 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Hampshire. 683 places in Hampshire are on our list, from the larger towns to small villages. We also work in Southampton, around 7 miles away.
We cover every part of the SO32 postcode area for sand mastic. Streets in the area include Scivier's Lane and Manor Road. Close by, we work in Wintershill (1 mile north-west), Lower Upham (1 mile north), Durley (1 mile south-west), Ashton (1 mile north-east) and Bishop's Waltham (2 miles east). Further out, we also cover Winchester (8 miles north-west), Gosport (11 miles south), Havant (13 miles south-east), Eastleigh (4 miles west), Fareham (8 miles south) and Horndean (11 miles east).
Landmarks near Durley Street
The nearest railway station is Hedge End station, about 2.8 miles south-west. A little further out are Moorgreen Hospital (3.9 miles south-west) and Bishop's Waltham Museum (1.4 miles east). Open spaces near Durley Street include Bishops Waltham Branch LNR.
How it works
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a single window, longer for several for a typical job. For a village or hamlet like Durley Street, 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.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- 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.
Preparing for the visit
- Clear the area around the work
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
Getting a quote
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
Read more
Durley Street: your questions answered
Can you do sand mastic in Durley Street?
Yes. We work across London and the South East, and Durley Street is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Is Durley Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
How do I get a quote for sand mastic in Durley Street?
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.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.
What should I tell you?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
What we’re called out for in Durley Street
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
Signs it’s time to call us include:
- Tired mastic found when preparing windows for paint
- Weathered mastic on the most exposed windows
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps between timber frames and stone or brick
For site and facilities teams at buildings such as Wyvern Technology College, the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Whether you can choose the colour
- How the joint is cleaned and prepared
- What insurance they hold
- What product goes in the joint
Honest limits
In fairness, there are a few things sealant won’t fix:
- Whether work needs listed building consent
- Broken panes
- Timber that has rotted
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Durley Street
- Tenement windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows