Kent · England
Sand mastic for sash & case windows in Baker's Cross, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Baker's Cross. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
How we handle sand mastic in Baker's Cross
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on stone surrounds, timber door frames and sash and case windows, and people most often call us about gaps round a timber door in stone or brick and mastic worn away on windows facing the weather.
Homes in small places like Baker's Cross often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, in Baker's Cross and everywhere else we cover.
- Location
- Baker's Cross (TN17, TN18)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about sand mastic in Baker's Cross
Will you come out to Baker's Cross?
Yes. Baker's Cross is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is sand mastic in Baker's Cross guaranteed?
All our work, in Baker's Cross and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. The silicone is cut out and the joint cleaned, then point it with sand mastic.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Broken panes
- Damaged stone surrounds
- Sashes that need overhauling
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Baker's Cross
- Stone surrounds
- Period & listed homes
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Leave it or put it right?
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic will not stop the gaps, and the new mastic is traditionally left unpainted. In a small place like Baker's Cross, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why us?
- We leave the area clean and tidy
- ARBOMaster approved applicator
- One-year guarantee on every job
- We’re fully insured
Take a look at our cost guide and customer reviews.
How we quote for sand mastic
Every job gets its own quote. This is what makes a difference:
- The product the joint needs
- When we can work, for business premises
- How easy the joints are to reach
- Whether there’s mould to deal with
Combining jobs into one visit usually makes better use of the time than several visits. We’ll give you a clear price for the lot.
What we need to know
To help us quote quickly, let us know:
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Where the property is
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 drop us an email.
The process
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Baker's Cross, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job.
Read more
Towns and villages near Baker's Cross
Other services in Baker's Cross
For landlords and businesses
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Windows and doors in Baker's Cross
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.
If you live in an older home near Church of St Dunstan, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Cranbrook School, larger buildings have plenty of frames, and the mastic around each one ages.
Baker's Cross is about 9 miles south-east of Paddock Wood, in Kent. From the centre of Baker's Cross to the outskirts, sand mastic is available for homes and businesses alike. Baker's Cross is one of 922 towns and villages in Kent we cover. Our Crawley page covers work nearby, about 32 miles away.
We work across the TN17 and TN18 postcode area for sand mastic. Streets in the area include Dorothy Avenue, Brickenden Road and Doctor Hope's Road, and we cover them all. Close by, we work in Cranbrook (1 mile west), Coursehorn (1 mile east), Swattenden (1 mile south-west), Hartley (2 miles south-west) and Benenden (2 miles south-east). Further out, we also cover Maidstone (12 miles north), Ashford (14 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (14 miles north-west), Kings Hill (14 miles north-west) and Foley Park (13 miles north).
Landmarks near Baker's Cross
Around Baker's Cross, our work takes us to homes and buildings near White Horse pub, Crane Valley and Cranbrook Church of England Primary School. Nearby you will also find Sissinghurst Castle (2.3 miles north-east) and Sissinghurst Castle (2.3 miles north-east).
Looking after it afterwards
After the cure time, these simple habits help:
- Do not run silicone over sand mastic
- Find out about consent before window work on a listed home
- Keep sills and gutters clear so water drains away
- Take care around the mastic when scraping paint
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
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.