Kent · England
Plaxtol Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Plaxtol, backed by a one-year guarantee. Ask us for a quote.
- Open joints round the window box
- Draughty sash windows at the surround
- Gaps round a timber door in stone or brick
About our sand mastic in Plaxtol
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic is the traditional choice, and we can replace one with the other. We’re often asked to deal with gaps round a timber door in stone or brick and wind and rain getting in round a sash window, across timber door frames, brick reveals and sash and case windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Plaxtol is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months.
- Place
- Plaxtol (TN15)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Sand mastic in Plaxtol: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Old Soar Manor (about 0.7 miles north-east) nearby, there’s older building stock in the area around Plaxtol as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as Plaxtol Church, the joint between an old wall and a newer frame is usually the first place rain gets in. Managing a site like Plaxtol Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Plaxtol is about 4 miles north of Tonbridge, in Kent. Every kind of property in Plaxtol can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Our Kent coverage runs to 922 places, Plaxtol among them. You can also see our page for London, roughly 24 miles from Plaxtol.
All of TN15 is within our area for sand mastic, from the main roads to the quietest streets. Whether your property is on The Street, St Hildas and Long Mill Lane or anywhere close by, our applicators can take on the job. We also cover the places around Plaxtol: Dunk's Green (1 mile south), Roughway (1 mile south-east), Claygate Cross (1 mile north), Crouch (1 mile north) and Basted (1 mile north). Within a short drive, we also cover Maidstone (10 miles east), Dartford (13 miles north), Sevenoaks (5 miles west), Royal Tunbridge Wells (9 miles south), Gravesend (12 miles north) and Tonbridge (4 miles south).
Landmarks near Plaxtol
Typical jobs here are in homes near The Kentish Rifleman Public House and Ivy Hatch Nature Reserve. For rail, the closest station is Borough Green & Wrotham station, roughly 2.4 miles north of the centre. A little further out are Ightham Court (2.6 miles north) and Sevenoaks Hospital (5.2 miles north-west). Not far away are Barden Lake.
How it works
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. Expect the work to take anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. For a village or hamlet like Plaxtol, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
If you’re in Plaxtol and need sand mastic, call 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.
Advice
What we’re called out for in Plaxtol
Some old mastic was never deep enough. A thin layer does not hold well so we make sure the new mastic is the right thickness.
Signs it’s time to call us include:
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
Rented homes near Borough Green & Wrotham station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- Is the old sealant removed completely?
- How hidden problems are handled
- Whether you can choose the colour
- Are they insured?
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Take care around the mastic when scraping paint
- Get any rot dealt with first
- Check the mastic when you check the paintwork
- Renew mastic before redecorating the windows
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
When it is not the sealant
We will always be straight with you, so here’s what new sealant will not do:
- Sashes that rattle, stick or will not open
- Crumbling stone or brickwork round the window
- Decayed frames that need repair
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Where we work in Plaxtol
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
Common questions in Plaxtol
Is Plaxtol in your area for sand mastic?
Yes. We work across London and the South East, and Plaxtol is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Borough Green & Wrotham station?
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.
Can I choose the sealant colour?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Should I use sand mastic or silicone?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Is it possible to take out silicone and use sand mastic instead?
Generally, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They decide whether consent is needed.
Also near Plaxtol
More services for Plaxtol
What affects the quote in Plaxtol
There’s no set price list, because jobs vary so much. What we look at:
- Mould in or behind the old joints
- The old material and how stubborn it is
- When we can work, for business premises
- The amount of work
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
When you contact us, these details help:
- The type of property
- The problem you’ve noticed
- The address or postcode of the job
- Whether it has been sealed before
We do not publish a price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.