Kent · England
St Ann's Green Sand Mastic
Sand mastic for St Ann's Green and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
Sand mastic in St Ann's Green
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. We’re often asked to deal with window mastic to renew ahead of painting and weathered mastic on the most exposed windows, across sash and case windows, period & listed homes and tenement windows.
Somewhere as small as St Ann's 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.
There’s a 12-month guarantee on every job, large or small.
- Where
- St Ann's Green (TN12)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like St Ann's Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts.
Why book with us
- We are fully insured
- One-year guarantee on every job
- Anti-fungal sanitary silicone in wet areas
- Tidy, careful work
See our cost guide and what customers say.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What affects the quote in St Ann's Green
You’ll get a clear quote before any work starts. It takes into account:
- The number of rooms or windows
- When we can work, for business premises
- The size of the job
- Access and height
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
To help us quote quickly, please include:
- The problem you’ve noticed
- Where the job is, and your postcode
- The type of property
- Pictures of the joints, sent by email
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. Whenever you are ready, call 0345 464 0079 or email us.
Windows and doors in St Ann's Green
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around St Ann's Green, as everywhere, sand mastic is only as good as the preparation behind it.
St Ann's Green is about 6 miles south of Maidstone, in Kent. Anywhere in TN12, our applicators can take on sand mastic. St Ann's Green is one of 922 places in Kent where we work. You can also see our page for Crawley, about 31 miles away.
Work in TN12 works the same way as everywhere else we cover. Close by, we work in Milebush (1 mile west), Underling Green (1 mile north), Wanshurst Green (1 mile south), Cross-at-Hand (1 mile east) and Marden Thorn (2 miles south). Larger places within reach include Maidstone (6 miles north), Sittingbourne (14 miles north-east), Royal Tunbridge Wells (11 miles west), Tonbridge (10 miles west), Kings Hill (8 miles north-west) and Foley Park (7 miles north).
Local landmarks in St Ann's Green
For rail, the closest station is Marden station, roughly 1.2 miles south-west. Well-known places in the area include Oakwood Hospital (5.9 miles north) and Sutton Valence Castle (4 miles north-east).
What happens on the day
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. Somewhere like St Ann's Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Advice
Surface by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Sort the mastic before the decorators arrive
- Check with your local planning authority if your home is listed
- Leave the new mastic unpainted
- Avoid heavy scraping on the mastic joint
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Your questions about sand mastic in St Ann's Green
Do you cover St Ann's Green for sand mastic?
Yes. We work across London and the South East, and St Ann's Green is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Marden station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected.
What does sand mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Can you quote for more than one area?
Yes. Just list everything you need and we’ll quote it together.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Places near St Ann's Green
More services for St Ann's Green
Signs you need sand mastic in St Ann's Green
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
The problems people generally mention when they call include:
- Gaps round a timber door in stone or brick
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
- Open joints round the window box
For landlords with property near Marden station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- Is the old sealant removed completely?
- Is VAT in the price?
- Whether the sealant suits the joint
- What the cure time is