Essex · England
Howegreen Sand Mastic
Our applicators work in Howegreen 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 one-year guarantee.
- Modern sealant on a period surround
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
How we quote for sand mastic
You will get a clear quote before any work starts. It’s based on:
- How many rooms, windows or areas are involved
- Whether the work is at height
- Which sealant suits the joint
- Whether there’s mould to deal with
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Roughly how big the job is
- A few pictures by email, if you can
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
For sand mastic in Howegreen, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
How we handle sand mastic in Howegreen
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We work on period & listed homes, timber door frames and tenement windows, and common reasons people get in touch are gaps round a timber door in stone or brick and modern sealant on a period surround.
Around Howegreen, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Howegreen (CM3)
- Wider area
- Essex
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Also near Howegreen
Other services in Howegreen
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Clear gutters so water does not pour onto the windows
- Check with your local planning authority if your home is listed
- Ask us before painting near the mastic
- Check the mastic when you check the paintwork
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
Why it’s worth doing now in Howegreen
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Howegreen can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Why Howegreen customers choose us
- Quality sealants from Arbo and Everbuild
- Anti-fungal sanitary silicone in wet areas
- Approved under the ARBOMaster scheme
- Full insurance on every job
See our cost guide and our reviews.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
The process
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work usually takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Howegreen, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- 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.
How to prepare
- Tell us if parking is tricky
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
Get a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear price before we start.
Read more
Your questions about sand mastic in Howegreen
I let a flat near North Fambridge station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Will you come out to Howegreen?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Should I use sand mastic or silicone?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
Common problems we fix in Howegreen
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Most people get in touch after spotting something like this:
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
- Weathered mastic on the most exposed windows
Rented homes near North Fambridge station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before you book
- Whether all the old sealant comes out first
- What guarantee comes with the work
- What happens if the job turns out different
- How the colour is chosen
Howegreen homes and the weather
Historic houses like Danbury Place (about 4.9 miles north-west) are a reminder that the area around Howegreen has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Purleigh Community Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Parish Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Howegreen is about 3 miles south of Maldon, in Essex. Howegreen gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Howegreen is one of 644 places in Essex we cover. There’s also a page for Chelmsford, about 8 miles away.
Here we cover the CM3 postcode area for sand mastic. We also cover the places around Howegreen: Purleigh (1 mile north), Farther Howegreen (1 mile south-east), Great Canney (1 mile south), Rudley Green (1 mile north) and Cold Norton (1 mile south-east). We also work in nearby towns such as Chelmsford (8 miles north-west), Basildon (11 miles south-west), Braintree (14 miles north), Maldon (3 miles north), Canvey Island (12 miles south) and Billericay (11 miles west).
What’s near Howegreen
We work in homes and buildings around The Bell Public House, among other places. The nearest railway station is North Fambridge station, roughly 2.6 miles south-east. Not far away are Stow Maries Halt.
What we cannot put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Damaged stone surrounds
- Broken panes
- Timber that has rotted
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Where we work in Howegreen
- Stone surrounds
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
- Period & listed homes
