Kent · England
Sand mastic for sash & case windows in Luddesdown, Kent
Professional sand mastic in and around Luddesdown, with every bit of old sealant taken out first.
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps between timber frames and stone or brick
- Draughty sash windows at the surround
About our sand mastic in Luddesdown
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. We work on sash and case windows, brick reveals and stone surrounds, and people most often call us about mastic dropping out of the joint and draughts and rain around sash boxes.
Somewhere as small as Luddesdown, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, large or small.
- Place
- Luddesdown (DA13)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Luddesdown
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Older cottages and farmhouses around Luddesdown 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 much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Why Luddesdown clients choose us
- Approved under the ARBOMaster scheme
- More than 20 years in sealant work
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
Take a look at our cost guide and what customers say.
Common problems we fix in Luddesdown
Some old mastic was never deep enough. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
Signs it’s time to call us include:
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
- Open joints round the window box
- Old cement repairs round a window that have failed
If you look after a building such as Meopham School, larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- What guarantee comes with the work
- Whether the sealant suits the joint
- How long to leave it before use
- What happens if they find a problem under the old sealant
Luddesdown: your questions answered
Can you do sand mastic in Luddesdown?
Yes. Our work covers London and the South East, and Luddesdown is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Will you come out to Luddesdown?
Yes, Luddesdown is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What information do you need?
Tell us what needs doing and where. We will ask anything else we need to know.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will talk you through it.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Sashes that need overhauling
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Period & listed homes
- Stone surrounds
- Brick reveals
- Timber door frames
- Sash and case windows
- Tenement windows
Can I do it myself?
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.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
The process
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from a few hours to a full day, depending on how many windows. Somewhere like Luddesdown 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.
- We start by checking each surround and agreeing the joints to renew.
- 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.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or send us an email.
Related advice
Also near Luddesdown
More services for Luddesdown
Frames and glazing around Luddesdown
With historic houses such as Cobham College (about 1.2 miles north) nearby, there’s older building stock in the area around Luddesdown as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
In the older streets around Parish Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Sole Street station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Luddesdown is about 4 miles south of Gravesend, in Kent. We provide sand mastic to homes and businesses in Luddesdown, as part of our work across Kent. Luddesdown is one of 922 towns and villages in Kent we cover for sand mastic. You can also see our page for London, about 23 miles away.
Jobs for sand mastic in DA13 is quoted and booked the same way as anywhere else. Neighbouring places we cover for sand mastic include Henley Street (1 mile north), Gold Street (1 mile north-west), Foxendown (1 mile west), Sole Street (1 mile north-west) and Round Street (2 miles north-west). Further out, we also cover Maidstone (9 miles south-east), Sittingbourne (15 miles east), Dartford (9 miles north-west), Sevenoaks (11 miles south-west), Gravesend (4 miles north) and Tonbridge (13 miles south-west).
Near you in Luddesdown
In Luddesdown, that means homes and buildings near The Golden Lion pub and Camer Park Country Park, among other places. The closest station to Luddesdown is Sole Street station, about 1.2 miles north-west of the centre. Nearby you will also find French Hospital (4.7 miles east) and Rochester Castle (4.6 miles east). For a walk, there’s Ranscombe Farm and Gad's Hill.
How to look after the new joints
So the new joints stay in good condition:
- Check with your local planning authority if your home is listed
- Go gently near the mastic when preparing windows
- Inspect the joints round the windows every year or so
- Get any rot dealt with first
Do not touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
What the job involves on each surface
Stone surrounds
The stone is treated with care when the old mastic comes out.
Timber door frames
Round a period front door, sand mastic gives the right look.