Kent · England
Sand mastic for sash & case windows in Marley, Kent
Specialist sand mastic for Marley: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Mastic dropping out of the joint
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
How we handle sand mastic in Marley
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. If you have draughty sash windows at the surround and tired mastic found when preparing windows for paint, we can help, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Marley is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
All of our work is guaranteed for twelve months, in Marley and everywhere else we cover.

- Location
- Marley (ME17)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Marley
Historic houses like Leeds Castle (about 2.5 miles west) are a reminder that the area around Marley has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Homes close to St John the Baptist's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Harrietsham station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Marley is about 7 miles east of Maidstone, in Kent. For sand mastic in and around Marley, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Kent. Our area takes in 922 places across Kent, from the larger towns to small villages. There’s also a page for Chelmsford, roughly 35 miles from Marley.
Here we cover the ME17 postcode area for sand mastic. That includes homes and businesses on Parks Road, Young Lane and Church Lane and the roads around them. Neighbouring places we cover for sand mastic include Harrietsham (1 mile west), Pollhill (1 mile west), Sandway (1 mile south-east), Platt's Heath (1 mile south) and Chegworth (2 miles west). Within a short drive, we also cover Maidstone (7 miles west), Ashford (11 miles south-east), Sittingbourne (7 miles north), Faversham (10 miles north-east), Minster (13 miles north-east) and Kings Hill (12 miles west).
Around Marley
Typical jobs here are in homes near The Lenham School, The Roebuck Public House and Kiln Wood, among other places. For rail, the closest station is Harrietsham station, roughly 0.6 miles west. Nearby you will also find Leeds Castle (2.5 miles west) and The Dog Collar Museum (2.4 miles west).
Nearby places to Marley
Other services in Marley
What sealant work cannot fix
It helps to know what we cannot do too:
- Planning or listed building consent (your local planning authority decides)
- Sashes that rattle, stick or will not open
- Decayed frames that need repair
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Brick reveals
- Stone surrounds
- Tenement windows
- Timber door frames
- Period & listed homes
- Sash and case windows
Different surfaces, different methods
Period and listed homes
A traditional finish suits a period property.
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. We rake it out and renew it.
Questions from Marley
Can you do sand mastic in Marley?
Yes. We work across London and the South East, and Marley is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Harrietsham station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Are you insured?
Yes. We are fully insured.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours for a single window, longer for several. In a small place like Marley, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
- Clear items away from the joints we are working on
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.
Related advice
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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.
For landlords and businesses
Landlords and agents in Marley can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Quotes for sand mastic in Marley
You will get a clear quote before we start. It’s based on:
- The number of rooms or windows
- Which sealant suits the joint
- When we can work, for business premises
- How much there is to do
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- The address or postcode of the job
- What’s wrong with the joints now
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.
What we’re called out for in Marley
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
These are the problems we are asked about most:
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
- Mastic worn away on windows facing the weather
- Draughty sash windows at the surround
Managing a site like Harrietsham Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What insurance they hold
- What happens if the job turns out different
- Is the old sealant removed completely?
- What guarantee comes with the work
