Kent · England
Sand mastic for sash & case windows in Pembury, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Pembury, with a one-year guarantee on every job. Call for a quick quote.
- Weathered mastic on the most exposed windows
- Old cement repairs round a window that have failed
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Pembury
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Common call-outs are for mastic worn away on windows facing the weather and cracked mastic round a front door frame, across stone surrounds, period & listed homes and tenement windows.
Houses in smaller places like Pembury can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
You get a 12-month guarantee, the same in Pembury as everywhere else we work.
- Where
- Pembury (TN2)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of sand mastic
We do not publish a price list, because jobs vary so much. What we look at:
- The number of rooms or windows
- Working hours on commercial sites
- How easy the joints are to reach
- The amount of work
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the property is
- Whether it has been sealed before
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Pembury: your questions answered
I let a flat near High Brooms station. Can you help?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is Pembury within the area you cover?
Yes. Pembury is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
How do I get a quote for sand mastic in Pembury?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic can sit properly.
How long does sand mastic take?
Typically it takes a few hours for a single window, longer for several. Larger jobs naturally take longer.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. We’ll ask anything else we need to know.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic when you check the paintwork
- Ask the planning authority about consent for listed or conservation-area homes
- Keep modern sealant off the mastic
- Plan mastic work ahead of painting
Do not run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
What we seal
- Timber door frames
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Sash and case windows
Towns and villages near Pembury
Other services in Pembury
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a single window, longer for several. In a smaller place like Pembury, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
How to get a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Related advice
What the job involves on each surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Leave it or put it right?
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Pembury, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- 20+ years of sealant experience
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
Read what affects the cost or what customers say.
Frames and glazing around Pembury
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Pembury School, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Upper Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near High Brooms station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Pembury is about 3 miles east of Royal Tunbridge Wells, in Kent. Wherever you are in the TN2 postcode area, we cover sand mastic for homes and businesses. Our area takes in 922 places across Kent, from the larger towns to small villages. Our Crawley page covers work nearby (23 miles or so).
Work in TN2 works the same way as everywhere else we cover. You will find streets such as High Street, Church Road and Henwood Green Road, and we cover them all. Other places close to Pembury include Key's Green (2 miles south-east), Matfield (2 miles east), Lamberhurst Quarter (2 miles south-east), Capel (2 miles north) and Petteridge (2 miles east). Larger places within reach include Maidstone (12 miles north-east), Sevenoaks (11 miles north-west), Royal Tunbridge Wells (3 miles west), Tonbridge (4 miles north-west), Kings Hill (9 miles north) and Foley Park (13 miles north-east).
Local landmarks in Pembury
In Pembury, that means homes and buildings near Skinners' Kent Academy, King William IV pub and Brenchley Wood. The nearest railway station is High Brooms station, roughly 2.2 miles west of the centre. Other landmarks nearby include Tunbridge Wells Museum and Art Gallery (2.9 miles west) and Tunbridge Wells Hospital (0.9 miles west). For a walk, there’s Barden Lake and Tudeley Woods RSPB reserve.
Can I do it myself?
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 does not work out, we can still put it right.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.