Kent · England
Sand mastic for sash & case windows in Stansted, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Stansted. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
Frames and glazing around Stansted
With historic houses such as Lullingstone Castle (about 4.7 miles west) nearby, there’s older building stock in the area around Stansted as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Wrotham School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Stansted is about 6 miles north-east of Sevenoaks, in Kent. We provide sand mastic to householders, landlords and businesses in Stansted and the surrounding area. Stansted is one of 922 towns and villages in Kent we cover. Our London page covers work nearby, about 20 miles away.
Every address in TN15 is within our area for sand mastic. That includes homes and businesses on Parsons Lane, Plaxdale Green Road and Hatham Green Lane and the roads around them. Neighbouring places we cover for sand mastic include Ash (2 miles north), West Kingsdown (2 miles north-west), West Yoke (2 miles north), Knatts Valley (2 miles west) and Fawkham Green (2 miles north). We also work in nearby towns such as Maidstone (11 miles south-east), Dartford (8 miles north-west), Sevenoaks (6 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (7 miles north-east) and Tonbridge (9 miles south).
What’s near Stansted
Locally, jobs take us to homes and businesses close to Trosley Country Park. The closest station to Stansted is Borough Green & Wrotham station, roughly 2.9 miles south of the centre. Other landmarks nearby include Sevenoaks Hospital (5.5 miles south-west) and Ightham Court (2.8 miles south).
Sand mastic in Stansted, done properly
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you’re dealing with crumbling sand mastic round a window and failed mastic on an exposed elevation, we can help, on brick reveals, tenement windows and timber door frames alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Stansted is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- Stansted (TN15)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Stansted
Also in Stansted
Signs you need sand mastic in Stansted
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
People usually contact us after spotting something like this:
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
For landlords with property near Borough Green & Wrotham station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- How the colour is chosen
- What preparation is included
- Whether they seal over old material or remove it
- Whether the sealant suits the joint
What the job involves on each surface
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. It’s renewed by hand.
Period and listed homes
Period homes look their best with traditional materials.
When it isn’t the sealant
We’d rather tell you now than do work that won’t last, so these are the limits:
- Masonry that needs repairing
- Cracked or broken glass
- Sashes that rattle, stick or will not open
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
What we seal
- Tenement windows
- Period & listed homes
- Stone surrounds
- Timber door frames
- Sash and case windows
- Brick reveals
Leave it or put it right?
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. Older cottages and farmhouses around Stansted can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What you get with us
- Tidy, careful work
- We never seal over old sealant
- Over 20 years’ experience
- A 12-month guarantee on all work
Take a look at what affects the cost and customer reviews.
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Stansted, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Move anything stored near the joints
- Tell us about any water getting in
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Related advice
What affects the quote in Stansted
We quote each job individually. These are the things that affect it:
- The type of sealant required
- Working hours on commercial sites
- Access and height
- The old material and how stubborn it is
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- The address or postcode of the job
- What’s wrong with the joints now
- Photos by email, if that is easy
Want a quote for sand mastic? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Stansted questions
Can you do sand mastic in Stansted?
Yes. Our work covers London and the South East, and Stansted is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Will you come out to Stansted?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
How long will you be here?
As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer, and we’ll say how long yours will take.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
How much does sand mastic cost in Stansted?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.