Kent · England
Sand Mastic in Hadlow
Sand mastic for Hadlow and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- A silicone bead on a sash window that spoils the look
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Sand mastic for homes and businesses in Hadlow
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on stone surrounds, timber door frames and period & listed homes, and the jobs we see most are weathered mastic on the most exposed windows and open joints round the window box.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hadlow is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Hadlow (TN11)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
The work is kept neat and contained to the joints we’re treating. The job generally takes anything from a few hours to a full day, depending on how many windows. In a small place like Hadlow, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
Read more
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask us before painting near the mastic
- Find out about consent before window work on a listed home
- Inspect the joints round the windows every year or so
- Make sure water runs off the sill
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Different surfaces, different methods
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.
What we cannot put right
We will always be straight with you, so here’s what new sealant will not do:
- Crumbling stone or brickwork round the window
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or will not open
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Sash and case windows
- Period & listed homes
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
Other services in Hadlow
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Frames and glazing around Hadlow
The South East is one of 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 2.6 miles north) nearby, there’s older building stock in the area around Hadlow as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Beltring station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Hadlow Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as St Mary's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hadlow is about 3 miles north-east of Tonbridge, in Kent. Whether you are in the middle of Hadlow or further out, sand mastic is available for homes and businesses alike. Our Kent coverage runs to 922 places, Hadlow among them. There’s also a page for Crawley, roughly 24 miles from Hadlow.
Jobs for sand mastic in TN11 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on The Square, High Street and Brookfields or a nearby road, we can help. Close by, we work in Pittswood (1 mile west), Goose Green (1 mile north-east), Golden Green (1 mile south), Parker's Green (1 mile south-west) and Barnes Street (1 mile south-east). We also work in nearby towns such as Maidstone (9 miles east), Sevenoaks (7 miles north-west), Royal Tunbridge Wells (7 miles south-west), Gravesend (14 miles north), Tonbridge (3 miles south-west) and Northfleet (14 miles north).
Around Hadlow
We work in homes and buildings around Hadlow Rural Community School, Hadlow College and The Rose & Crown pub, among other places. The nearest railway station is Beltring station, roughly 3.3 miles south-east. Other landmarks nearby include Hadlow Tower museum (under half a mile south-east) and Tonbridge Cottage Hospital (4.3 miles south-west). Green spaces nearby include Barden Lake and Tudeley Woods RSPB reserve.
FAQs for Hadlow
Is Hadlow within the area you cover?
Yes, Hadlow is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Hadlow for sand mastic?
Yes, Hadlow is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is the work guaranteed?
Our one-year guarantee covers every job, sand mastic included.
Do I need permission for sand mastic on a listed building?
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.
When will the new mastic be hard?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Hadlow.
Why act early in Hadlow
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Where a wall is exposed, as many are in small places like Hadlow, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, 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.
What you get with us
- Rated 4.9 stars on Google
- Homes, businesses and hotels
- Fully insured
- Anti-fungal silicone where joints get wet
Read our cost guide and our reviews.
Quotes for sand mastic in Hadlow
The quote reflects the job in front of us. We look at:
- Access and height
- How much there is to do
- When we can work, for business premises
- Any mould that needs treating
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Roughly how big the job is
- Where the property is
- How we’d reach the joints
- Pictures of the joints, sent by email
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.