Kent · England
Sand mastic for sash & case windows in Ditton, Kent
Sand mastic across Ditton and nearby, with every bit of old sealant taken out first.
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
- Modern sealant on a period surround
How we handle sand mastic in Ditton
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We’re often asked to deal with tired mastic found when preparing windows for paint and mastic dropping out of the joint, across tenement windows, sash and case windows and stone surrounds.
Houses in smaller places like Ditton can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
All our work comes with our one-year guarantee, wherever you are in Kent.
- Where
- Ditton (ME20)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

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.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. For a job in Ditton, 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 look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Try not to wet indoor joints just before the visit
How to get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Advice
Other services in Ditton
Why it’s worth doing now in Ditton
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. In a smaller place like Ditton, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why book with us
- Every job guaranteed for a year
- Domestic, commercial and hotel work
- We never seal over old sealant
- We’re fully insured
Read what affects the cost or what customers say.
Windows and doors in Ditton
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. Historic houses like Starkey Castle (about 4.8 miles north) are a reminder that the area around Ditton has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to St Peter's Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Aylesford station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Ditton is about 4 miles north-west of Maidstone, in Kent. Whether you’re in the middle of Ditton or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Ditton is one of 922 places in Kent where we work for sand mastic. London is on our list too, about 28 miles from Ditton.
Postcode districts we cover here for sand mastic: ME20. Sand mastic is available to properties on London Road, Station Road and Scott Close and the roads around them. Neighbouring places we cover for sand mastic include Aylesford (1 mile east), East Malling (1 mile west), Well Street (1 mile south-west), Allington (2 miles east) and West Malling (2 miles west). Further out, we also cover Maidstone (4 miles south-east), Sittingbourne (13 miles east), Dartford (14 miles north-west), Sevenoaks (12 miles west), Royal Tunbridge Wells (14 miles south-west) and Gravesend (10 miles north).
Local landmarks in Ditton
Around Ditton, our work takes us to homes and buildings near Aylesford School, The Malling School and Kentish Quarryman pub, among other places. For rail, the closest station is Aylesford station, about 0.6 miles north-east. Well-known places in the area include Leybourne Castle (1.6 miles north-west) and Fremlin Walk (3.1 miles south-east). Open spaces near Ditton include Burham Down and Blue Bell Hill.
What affects the cost of sand mastic
We quote each job individually. These are the things that affect it:
- The type of sealant required
- Any working-time requirements on site
- Whether the work is at height
- Mould in or behind the old joints
Some things make a job bigger or smaller: 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.
Helping us quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- The rough size of the job
- The problem you’ve noticed
If you’re in Ditton and need sand mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
When to call us in Ditton
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
People usually contact us when they notice something like this:
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
If you look after a building such as Ditton Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- What preparation is included
Different surfaces, different methods
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. We shape it by hand to follow the stone.
Ditton: your questions answered
Do you work for landlords with property near Aylesford station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Ditton within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
What guarantee comes with the work?
You get our one-year guarantee to all our work.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Timber that has rotted
- Putty and glazing repairs
- Sashes that rattle, stick or will not open
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
What we seal
- Tenement windows
- Brick reveals
- Stone surrounds
- Period & listed homes
- Timber door frames
- Sash and case windows
