Kent · England
Sinkhurst Green Sand Mastic
Our applicators work in Sinkhurst Green on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Gaps where the frame meets the masonry
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
When something else is needed
It helps to know what we can’t do:
- Putty and glazing repairs
- Damaged stone surrounds
- Sashes that rattle, stick or won’t open
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Joints and surfaces we work on
- Stone surrounds
- Sash and case windows
- Tenement windows
- Timber door frames
- Brick reveals
- Period & listed homes
Sand mastic in Sinkhurst Green
Sand mastic doesn’t last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you have gaps between timber frames and stone or brick and cracked mastic round a front door frame, we can help, whatever the surface.
Somewhere as small as Sinkhurst Green, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or email us.
- Place
- Sinkhurst Green (TN17)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
So the new joints stay in good condition:
- Go gently near the mastic when preparing windows
- Keep sills and gutters clear so water drains away
- Keep modern sealant off the mastic
- Get any rot dealt with first
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Signs you need sand mastic in Sinkhurst Green
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they generally need raking out.
If you can see any of these, it’s time to have the joints looked at:
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
- Cracked mastic round a front door frame
Managing a site like Frittenden Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether they seal over old material or remove it
- When the joint can take water or movement
- Is VAT in the price?
- How the colour is chosen
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Different surfaces, different methods
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. It’s renewed by hand.
How it works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes a few hours for a single window, longer for several. In a small place like Sinkhurst Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Tell us about any water getting in
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
How to get a quote
If you’re in Sinkhurst Green and need sand mastic, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Read more
Also near Sinkhurst Green
More services for Sinkhurst Green
Frames and glazing around Sinkhurst Green
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.
If you let a flat or house near Headcorn station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Sinkhurst Green is about 8 miles south of Maidstone, in Kent. Every kind of property in Sinkhurst Green can book us for sand mastic. Every job comes with our 12-month guarantee. We cover 922 towns and villages across Kent. There’s also a page for Crawley, about 34 miles away.
Every address in TN17 is within our area for sand mastic. We also cover the places around Sinkhurst Green: Frittenden (1 mile south), Knox Bridge (2 miles south-west), Hawkenbury (2 miles north), Staplehurst (2 miles north-west) and Cranbrook Common (2 miles south-west). Larger places within reach include Maidstone (8 miles north), Ashford (12 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (14 miles west), Tonbridge (14 miles west) and Kings Hill (11 miles north-west).
Around Sinkhurst Green
Around Sinkhurst Green, our work takes us to homes and buildings near Bell And Jorrocks Public House, among other places. The nearest railway station is Headcorn station, about 2 miles north-east of the centre. Other landmarks nearby include Kent Firefighting Museum (1.6 miles south-east) and Benenden Hospital (4.6 miles south).
Your questions about sand mastic in Sinkhurst Green
Is Sinkhurst Green within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do sand mastic in Sinkhurst Green?
Yes, Sinkhurst Green is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Are you insured?
Yes. We’re fully insured.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Can you match the sealant colour?
We help you choose a colour that suits. The product needed can limit the range.
Can landlords and businesses book you?
Yes, regularly. Several properties can be quoted together, and between tenancies is a good time for the work.