East Sussex · England
Sand mastic for sash & case windows in Silverhill, East Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Silverhill, backed by a 12-month guarantee. Call for a quick quote.
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
About our sand mastic in Silverhill
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. If you have window mastic to renew ahead of painting and mastic worn away on windows facing the weather, we can help.
Homes around Silverhill range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Silverhill (TN38, TN37, TN34)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. The work usually takes a few hours per window, depending on the condition of the joints. For a job in Silverhill, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details.
Read more
What affects the quote in Silverhill
For a quick quote, just ask. The main things that affect it are:
- Any mould that needs treating
- How much there is to do
- How much old sealant there is and how hard it is to remove
- Access and height
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Where the property is
- The type of property
- The rough size of the job
- A few pictures by email, if you can
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
What sealant work cannot fix
Before booking, it’s worth knowing the limits:
- Masonry that needs repairing
- Whether work needs listed building consent
- Decayed frames that need repair
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
What we seal
- Sash and case windows
- Timber door frames
- Brick reveals
- Tenement windows
- Period & listed homes
- Stone surrounds
Your questions about sand mastic in Silverhill
Does living near the coast affect sand mastic in Silverhill?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
Do you work for landlords with property near St Leonards Warrior Square station?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll talk you through it.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
What should I tell you?
Tell us what needs doing and where, plus pictures if you have them. We will ask anything else we need to know.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
Do you cover Silverhill?
Yes. We are based in Crawley and work across South East England, London and Scotland, and that includes Silverhill.
What sand mastic looks like in Silverhill
Silverhill is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as St Matthew's Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to St Leonards Warrior Square station? Then any sash windows need sound mastic to keep draughts and rain out.
Silverhill is about 1 mile west of Hastings, in East Sussex. We carry out sand mastic for homes and businesses in Silverhill, as part of our work across East Sussex. Silverhill is one of 289 places in East Sussex we cover for sand mastic. You can also see our page for Brighton, about 30 miles away.
Postcode districts we cover here for sand mastic: TN38, TN37 and TN34. Whether your property is on Duke Road, Vale Road and Drury Lane or a nearby road, our applicators can take on the job. We also cover the places around Silverhill: Hastings (1 mile east), Hollington (1 mile north-west), St Leonards (1 mile south), Blacklands (1 mile east) and St Helen's (1 mile north-east). Larger places within reach include Eastbourne (13 miles south-west), Bexhill-on-Sea (4 miles west), Hailsham (13 miles west), Polegate (14 miles west), Old Town (14 miles south-west) and Heathfield (15 miles north-west).
Around Silverhill
Locally, jobs take us to homes and businesses close to The Duke pub, Alexandra Park and University School, among other places. For rail, the closest station is St Leonards Warrior Square station, about 0.8 miles south. A little further out are Priory Meadow Shopping Centre (1.3 miles south-east) and The True Crime Museum (1.2 miles south-east). The countryside around Silverhill includes Church Wood and Robsack Wood and Senlac Hill.
Surface by surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Aftercare tips
A little care helps the new joints last. We recommend:
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Renew mastic before redecorating the windows
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
Signs you need sand mastic in Silverhill
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Look out for these signs:
- Old sand mastic that has cracked, crumbled or fallen out
- Draughty sash windows at the surround
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
Managing a site like Christ Church CofE Primary and Nursery Academy? Then its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Who does the work, and how experienced they are
- What the cure time is
- What happens if they find a problem under the old sealant
- Whether VAT is included
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.