Essex · England
Elmdon Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Elmdon. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Patchy fillers round a sash window
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
Sand mastic for homes and businesses in Elmdon
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. If you’re dealing with open joints round the window box and tired mastic found when preparing windows for paint, we can put it right, on tenement windows, timber door frames and period & listed homes alike.
In a village or hamlet like Elmdon, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Where
- Elmdon (CB11)
- Region
- Essex
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows, and the area is left clean. For a village or hamlet like Elmdon, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- On commercial sites, let us know about site rules
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work.
Read more
How to look after the new joints
So the new joints stay in good condition:
- Sort the mastic before the decorators arrive
- Check the mastic when you check the paintwork
- Have rotten timber repaired before new mastic goes in
- Avoid patching sand mastic with silicone
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Nearby places to Elmdon
Other services in Elmdon
What we cannot put right
It helps to know what we cannot do too:
- Timber that has rotted
- Crumbling stone or brickwork round the window
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
Sand mastic in Elmdon: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Audley End House (about 3.9 miles east) are a reminder that the area around Elmdon 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.
For landlords with property near Great Chesterford station, any sash windows need sound mastic to keep draughts and rain out.
Elmdon is about 5 miles west of Saffron Walden, in Essex. Jobs in Elmdon get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 644 towns and villages across Essex, from the larger towns to small villages. We also work in Chelmsford, around 26 miles away.
Jobs for sand mastic in CB11 works the same way as everywhere else we cover. You’ll find streets such as Ickleton Road, Horseshoe Close and Hollow Road, all of which we cover. If you’re just outside Elmdon, we cover Upper Pond Street (2 miles south), Bridge Green (2 miles south), Ickleton (3 miles north-east) and Great Chesterford (3 miles north-east). We also work in nearby towns such as Saffron Walden (5 miles east), Great Dunmow (15 miles south-east), Stansted Mountfitchet (10 miles south), Elsenham (9 miles south-east), Church End (15 miles south-east) and Thaxted (11 miles south-east).
Landmarks near Elmdon
Around Elmdon, our work takes us to homes and buildings near The Elmdon Dial pub. The closest station to Elmdon is Great Chesterford station, about 3 miles north-east of the centre. Well-known places in the area include American Air Museum (3.9 miles north) and The Warren (4.4 miles south-west).
Elmdon: your questions answered
Is Elmdon within the area you cover?
Yes. Elmdon 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.
Do you work for landlords with property near Great Chesterford station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Is sand mastic better than silicone for my windows?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames usually get a flexible sealant.
Leave it or put it right?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic suits the building and finishes neatly against the masonry. In a small place like Elmdon, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why Elmdon customers choose us
- Over 20 years’ experience
- Experience in homes, commercial sites and hotels
- An ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
See what affects the cost or our reviews.
What the job involves on each surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
When to call us in Elmdon
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
Signs it’s time to call us include:
- Weathered mastic on the most exposed windows
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
In the older streets around Church of St Nicholas, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- When the joint can take water or movement
- What insurance they hold
- Is VAT in the price?
- Whether they seal over old material or remove it
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.