Essex · England
Sand Mastic in Nine Ashes
We cover Nine Ashes for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
Sand mastic in Nine Ashes
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. Common call-outs are for draughts and rain around sash boxes and tired mastic found when preparing windows for paint, across period & listed homes, brick reveals and timber door frames.
Homes in small places like Nine Ashes often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
You get a 12-month guarantee, the same in Nine Ashes as everywhere else we work.
- Where
- Nine Ashes (CM4)
- Region
- Essex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for sand mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- How easy the joints are to reach
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What we need to know
To make quoting easier, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Roughly how big the job is
- The address or postcode of the job
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
What the job involves on each surface
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
What happens on the day
We bring everything the job needs with us, so you do not 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. For a village or hamlet like Nine Ashes, 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.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
Getting a quote
It all starts with a short chat. 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.
Advice
Why it’s worth doing now in Nine Ashes
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Around Nine Ashes, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why book with us
- Old sealant always removed completely
- Sanitary silicone with an anti-fungal additive in wet areas
- We are fully insured
- 12-month guarantee on every job
See what affects the cost and customer reviews.
Landlord and commercial work in Nine Ashes
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Letting agents and landlords in Nine Ashes can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Keeping the joints in good condition
So the new joints stay in good condition:
- Ask a joiner to look at soft timber first
- Avoid heavy scraping on the mastic joint
- Avoid patching sand mastic with silicone
- Inspect the joints round the windows every year or so
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Common problems we fix in Nine Ashes
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
Common reasons people contact us are:
- Failed mastic on an exposed elevation
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
In the older streets around Church of St Laurence, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- Whether you can choose the colour
- The length of the guarantee
- What preparation is included
- When the joint can take water or movement
Common questions in Nine Ashes
Do you cover smaller places like Nine Ashes?
Yes. Nine Ashes is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Ingatestone station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll explain what to expect before we leave.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Nine Ashes homes and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Ingatestone Hall (about 4.6 miles south-east) nearby, there’s older building stock in the area around Nine Ashes 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’s traditional sand mastic.
Rented homes near Ingatestone station change hands often, and any sash windows need sound mastic to keep draughts and rain out. For site and facilities teams at buildings such as Blackmore Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Nine Ashes is about 5 miles north of Brentwood, in Essex. We carry out sand mastic for homes and businesses in Nine Ashes and nearby. Our area takes in 644 places across Essex, large and small. Our Chelmsford page covers work nearby, about 8 miles away.
Postcode districts we cover here for sand mastic: CM4. Whether your property is on Rookery Road and Nine Ashes Road or a nearby road, our applicators can take on the job. Close by, we work in Norton Heath (1 mile north), Radley Green (2 miles north-east), Willingale (3 miles north), Loves Green (3 miles east) and Berners Roding (3 miles north). We also work in nearby towns such as Chelmsford (8 miles east), Basildon (11 miles south-east), Harlow (9 miles north-west), Brentwood (5 miles south), Billericay (7 miles south-east) and Rayleigh (15 miles south-east).
Local landmarks in Nine Ashes
Locally, jobs take us to homes and businesses close to The Bull Inn and the streets around them. Nine Ashes’s nearest station is Ingatestone station, roughly 4.1 miles south-east of the centre. Nearby you’ll also find Brentwood Community Hospital (5.4 miles south) and Willingale Doe (3.4 miles north).