East Sussex · England
Sand mastic for sash & case windows in Green Street, East Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Green Street. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
How we handle sand mastic in Green Street
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. We’re often asked to deal with patchy fillers round a sash window and a silicone bead on a sash window that spoils the look, across timber door frames, brick reveals and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Green Street is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Big or small, you get the same 12-month guarantee.
- Location
- Green Street (TN38)
- Region
- East Sussex
- Cover
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
The process
We keep the work tidy and contained to the joints we are treating, so you can carry on as normal. The job usually takes a few hours for a single window, longer for several, and we tell you how long to leave it before we go. For a village or hamlet like Green 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 check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Advice
Places near Green Street
What else we do in Green Street
Surface by surface
Period and listed homes
Period homes look their best with traditional materials.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Green Street questions
Is sand mastic in a coastal place like Green Street any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Will you come out to Green Street?
Yes. Green Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
What does sand mastic cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email with a short description of the job.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will tell you what to expect for your job.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once.
What sand mastic looks like in Green Street
Green Street is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Crowhurst station? Then any sash windows need sound mastic to keep draughts and rain out. In the older streets around The Parish Church of St George, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Green Street is about 2 miles west of Hastings, in East Sussex. Whether you’re in the middle of Green Street or further out, sand mastic is available for homes and businesses alike. Our East Sussex coverage runs to 289 places, Green Street among them. We also work in Brighton, around 28 miles away.
Our applicators cover all of TN38 for sand mastic and the streets around it. If you’re just outside Green Street, we cover Crowhurst (1 mile north-west), Hollington (2 miles east), Bulverhythe (2 miles south), Silverhill (2 miles east) and Baldslow (2 miles north-east). Larger places within reach include Eastbourne (12 miles south-west), Bexhill-on-Sea (3 miles south-west), Hailsham (11 miles west), Polegate (12 miles west), Hastings Old Town (4 miles south-east) and Old Town (13 miles south-west).
Around Green Street
In Green Street, that means homes and buildings near The St Leonards Academy, Filsham Reedbed and The Plough Inn. The closest station to Green Street is Crowhurst station, about 0.8 miles north-west. Well-known places in the area include Hastings Castle (3.6 miles south-east) and Bexhill Hospital (2.5 miles south-west). Not far away are Church Wood and Robsack Wood and Senlac Hill.
Why deal with it now?
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 Green Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
What you get with us
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
Read our cost guide or customer reviews.
Signs you need sand mastic in Green Street
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Most people get in touch after spotting something like this:
- Draughty sash windows at the surround
- Mastic worn away on windows facing the weather
- Patchy fillers round a sash window
- Open joints round the window box
If you look after a building such as Crowhurst CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before you book
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- The length of the guarantee
- Whether VAT is included
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
If you manage several properties in or around Green Street, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
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.
Quotes for sand mastic in Green Street
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- When we can work, for business premises
- The size of the job
- Whether old sealant or filler has to be cut out
A few things move the cost up or down: 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.
Asking for a quote
When you contact us, these details help:
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
- Any access issues, like height or stairs
- Any previous sealing or DIY work
We quote each job on its own. Just ring 0345 464 0079 or email us with the details, and pictures are welcome.