Kent · England
Sand mastic for sash & case windows in Pearson's Green, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Pearson's Green, backed by a 12-month guarantee. Call for a quick quote.
- Open joints round the window box
- Mastic round period door frames that has failed
- Old cement repairs round a window that have failed
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- The amount of work
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- Mould in or behind the old joints
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
When you contact us, it’s useful to know:
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- The type of property
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.
Sand mastic in Pearson's Green
Across Pearson's Green, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. We work on stone surrounds, sash and case windows and tenement windows, and common reasons people get in touch are a silicone bead on a sash window that spoils the look and draughts and rain around sash boxes.
Somewhere as small as Pearson's Green, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
A one-year guarantee comes as standard.
- Place
- Pearson's Green (TN12)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026

What the job involves on each surface
Stone surrounds
The stone is treated with care when the old mastic comes out.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Your questions about sand mastic in Pearson's Green
Do you work for landlords with property near Paddock Wood station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Will you come out to Pearson's Green?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. If we need more, we will ask.
Are you insured?
Yes. Full insurance covers our work.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The product needed can limit the range.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
- Get any rot dealt with first
- Clear gutters so water doesn’t pour onto the windows
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Places near Pearson's Green
Also in Pearson's Green
Common problems we fix in Pearson's Green
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
Any of these means the joints need attention:
- Old cement repairs round a window that have failed
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
- Tired mastic found when preparing windows for paint
If you look after a building such as Mascalls School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- What preparation is included
- Who turns up on the day
- Whether you can choose the colour
- What guarantee comes with the work
Frames and glazing around Pearson's Green
Historic houses like Scotney Castle (about 5 miles south) are a reminder that the area around Pearson's Green has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
Letting a property close to Paddock Wood station? Then any sash windows need sound mastic to keep draughts and rain out. Scotney Castle, about 5 miles south, is one of the historic houses in the wider area around Pearson's Green, and older homes nearby need a sealant that suits their walls.
Pearson's Green is about 7 miles east of Tonbridge, in Kent. We carry out sand mastic for homes and businesses in Pearson's Green and the surrounding area. Pearson's Green is one of 922 places in Kent where we work. There’s also a page for Crawley, about 27 miles away.
Postcode districts we cover here for sand mastic: TN12. If you’re just outside Pearson's Green, we cover Castle Hill (1 mile south-west), Mile Oak (1 mile west), Palmer's Green (1 mile south-west), Claygate (1 mile north-east) and Queen Street (2 miles north). Further out, we also cover Maidstone (8 miles north-east), Sevenoaks (13 miles north-west), Royal Tunbridge Wells (7 miles west), Tonbridge (7 miles west), Kings Hill (8 miles north) and Foley Park (9 miles north-east).
Near you in Pearson's Green
We work in homes and buildings around The Castle Inn, among other places. The closest station to Pearson's Green is Paddock Wood station, roughly 2 miles north-west. Well-known places in the area include The Hop Farm Museum (2.6 miles north-west) and Tunbridge Wells Hospital (5.1 miles west).
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- Broken panes
- Damaged stone surrounds
- Sash cords, weights and draught-proofing of the sashes
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Stone surrounds
- Brick reveals
- Timber door frames
- Period & listed homes
- Tenement windows
- Sash and case windows
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Pearson's Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Clear the area around the work
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
