East Sussex · England
Sand mastic for sash & case windows in Broad Oak, East Sussex
Sand mastic for Broad Oak, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
Sand mastic in Broad Oak, done properly
Silicone on a period window often looks wrong and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you have wind and rain getting in round a sash window and tired mastic found when preparing windows for paint, we can help.
Somewhere as small as Broad Oak, 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.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Location
- Broad Oak (TN31)
- Region
- East Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Your questions about sand mastic in Broad Oak
Is Broad Oak in your area for sand mastic?
Yes. Our work covers London and the South East, and Broad Oak is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
Do you work for landlords with property near Doleham station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
How long does the job take?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we will say how long yours will take.
How long does sand mastic take to go off?
It takes a while. The skin forms first, and the full set comes later, and we’ll tell you what to expect.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
What affects the quote in Broad Oak
Every job gets its own quote. This is what makes a difference:
- How many rooms, windows or areas are involved
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- What’s wrong with the joints now
- The rough size of the job
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand.
Places near Broad Oak
What else we do in Broad Oak
How it works
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to a full day, depending on how many windows in most cases. For a village or hamlet like Broad Oak, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Tell us about any water getting in
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Related advice
Why deal with it now?
If you’re redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Broad Oak, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why us?
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
- Old sealant always removed completely
- Domestic, commercial and hotel work
Take a look at our cost guide or customer reviews.
What we cannot put right
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Broken panes
- Sashes that rattle, stick or will not open
- Timber that has rotted
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Sash and case windows
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Stone surrounds
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Broad Oak and across East Sussex. We can quote a run of properties together.
For anyone letting property in or around Broad Oak, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Sand mastic in Broad Oak: local notes
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. With historic houses such as Great Dixter (about 3.3 miles north) nearby, there’s older building stock in the area around Broad Oak as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Doleham station? Then any sash windows need sound mastic to keep draughts and rain out. Homes close to The Parish Church of St George include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Broad Oak is about 6 miles north of Hastings, in East Sussex. Homes, rented property, offices and hotels in Broad Oak is covered for sand mastic. Every job comes with our one-year guarantee. Broad Oak is one of 289 places in East Sussex we cover. We also work in Brighton, around 33 miles away.
Our applicators cover all of the TN31 postcode area for sand mastic and the streets around it. That includes homes and businesses on Pond Close, Reedswood Road and The Orchard and the roads around them. Broad Oak sits on or near the B2089, so getting to you is simple. We also cover Beckley Furnace (1 mile north-east), Broadland Row (1 mile east), Doleham (2 miles south), Udimore (2 miles east) and Beckley (3 miles north-east). We also work in nearby towns such as Hastings (6 miles south), Bexhill-on-Sea (9 miles south-west), St Leonards (7 miles south), Hastings Old Town (6 miles south), Belmont (6 miles south) and Heathfield (15 miles west).
Landmarks near Broad Oak
Broad Oak’s nearest station is Doleham station, roughly 2.2 miles south. Nearby you will also find Nortons Farm Museum (3.7 miles south-west) and Conquest Hospital (4.7 miles south). Not far away are Flatropers Wood.
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Common problems we fix in Broad Oak
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
Signs it’s time to call us include:
- Cement or filler used on old window joints that has cracked
- A silicone bead on a sash window that spoils the look
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
Managing a site like Brede Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Before you book anyone
- What the quote includes, VAT included or not
- Which colour the sealant will be
- Whether they seal over old material or remove it
- Who turns up on the day