Kent · England
Claygate Cross Sand Mastic
Sand mastic in Claygate Cross from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Cracked mastic round a front door frame
When something else is needed
In fairness, some problems need a different trade:
- Sashes that rattle, stick or will not open
- Masonry that needs repairing
- Broken panes
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Brick reveals
- Timber door frames
- Sash and case windows
- Stone surrounds
About our sand mastic in Claygate Cross
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. If you have cracked mastic round a front door frame and gaps between timber frames and stone or brick, we can help.
Somewhere as small as Claygate Cross, 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.
There’s a 12-month guarantee on every job, large or small.
- Place
- Claygate Cross (TN15)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
After the cure time, these simple habits help:
- Avoid patching sand mastic with silicone
- Check the mastic when you check the paintwork
- Avoid heavy scraping on the mastic joint
- Ask the planning authority about consent for listed or conservation-area homes
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
What the job involves on each surface
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Landlords, agents and businesses in Claygate Cross
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
More services for Claygate Cross
Your questions about sand mastic in Claygate Cross
I let a flat near Borough Green & Wrotham station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Is Claygate Cross in your area for sand mastic?
Yes. We work across London and the South East, and Claygate Cross is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
What information do you need?
A short description and the location, plus photos if you have them. We will ask anything else we need to know.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. The weather and joint depth both affect it.
Can you do several jobs on one visit?
Yes. Just list everything you need.
How long will you be here?
Typically it takes a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we will tell you how long to expect.
What happens if it’s left?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Older cottages and farmhouses around Claygate Cross can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why us?
- Full insurance on every job
- We leave the area clean and tidy
- 180+ five-star Google reviews
- Over 20 years’ experience
Read our cost guide or our reviews.
When to call us in Claygate Cross
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
People normally contact us when they notice one of these:
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
If you live in an older home near The Church of the Good Shepherd, the joint between an old wall and a newer frame is generally the first place rain gets in.
Before you book anyone
- What the cure time is
- Whether they seal over old material or remove it
- Whether you can choose the colour
- How the surfaces are prepared before sealing
What sand mastic looks like in Claygate Cross
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. Historic houses like Old Soar Manor (about 0.9 miles south-east) are a reminder that the area around Claygate Cross has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Borough Green & Wrotham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as Borough Green Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Claygate Cross is about 5 miles east of Sevenoaks, in Kent. Jobs in Claygate Cross get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Kent, we cover 922 places, Claygate Cross among them. London is on our list too, around 23 miles away.
All of TN15 is within our area for sand mastic, from the main roads to the quietest streets. Streets in the area include Claygate Cross, Basted Lane and Winfield Lane, and we cover them all. We also cover the places around Claygate Cross: Crouch (1 mile east), Basted (1 mile north-west), Borough Green (1 mile north), Plaxtol (1 mile south) and Platt (1 mile north-east). Further out, we also cover Maidstone (9 miles east), Dartford (12 miles north), Sevenoaks (5 miles west), Royal Tunbridge Wells (10 miles south), Gravesend (11 miles north) and Tonbridge (5 miles south).
Local landmarks in Claygate Cross
We work in homes and buildings around Wrotham School, The Chequers Inn and Ivy Hatch Nature Reserve, among other places. For rail, the closest station is Borough Green & Wrotham station, roughly 1.2 miles north. A little further out are Ightham Court (1.7 miles north-west) and Beechin Wood Archery Museum (1.1 miles north-east).
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to a full day, depending on how many windows, and the area is left clean. Somewhere as small as Claygate Cross, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Mention any tricky access
- Clear items away from the joints we are working on
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.