Essex · England
Brick End Sand Mastic
Professional sand mastic in and around Brick End, with every bit of old sealant taken out first and a 12-month guarantee.
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
How we handle sand mastic in Brick End
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We’re often asked to deal with draughty sash windows at the surround and old cement repairs round a window that have failed, on sash and case windows, period & listed homes and brick reveals.
Mastic can only go onto a dry, clean joint, so window work in Brick End is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
You get a 12-month guarantee, the same in Brick End as everywhere else we work.
- Place
- Brick End (CM6)
- Wider area
- Essex
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether the work is at height
- The amount of work
- The old material and how stubborn it is
- The number of rooms or windows
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us and we’ll talk you through it.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Whether it’s a home or a business
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Where the property is
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Towns and villages near Brick End
What else we do in Brick End
Your questions about sand mastic in Brick End
Will you come out to Brick End?
Yes. Brick End is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Stansted Airport station?
Yes, landlords and agents are among the people we work for, 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 send you a clear quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can old silicone round a sash window be swapped for sand mastic?
Generally, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in and agree one before we start.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Around Brick End, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Why book with us
- Over 20 years’ experience
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Cracked or broken glass
- Whether work needs listed building consent
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before booking.
Surfaces we seal
- Sash and case windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Tenement windows
- Timber door frames
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Ask a joiner to look at soft timber first
- Look over the window mastic once a year
- Go gently near the mastic when preparing windows
- Do not run silicone over sand mastic
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
Sand mastic in Brick End: local notes
With historic houses such as Horham Hall (about 2.4 miles north-east) nearby, there’s older building stock in the area around Brick End as well as newer homes. 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Mary the Virgin include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Brick End is about 6 miles north-east of Bishop's Stortford, in Essex. For sand mastic in and around Brick End, please phone 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Essex, Brick End included. Our area takes in 644 places across Essex, large and small. You can also see our page for Chelmsford, roughly 15 miles from Brick End.
We work across CM6 for sand mastic. Other places close to Brick End include Broxted (1 mile north), Henham (2 miles north-west), Fuller's End (2 miles west), Elsenham (3 miles west) and Ugley Green (3 miles west). Further out, we also cover Chelmsford (15 miles south-east), Braintree (12 miles east), Harlow (12 miles south-west), Saffron Walden (8 miles north), Halstead (15 miles east) and Great Dunmow (4 miles south-east).
Around Brick End
For rail, the closest station is Stansted Airport station, about 1.7 miles south-west of the centre. Nearby you will also find Herts and Essex Hospital (5.6 miles south-west) and House On The Hill Toy Museum (3.6 miles west). For a walk, there’s Aubrey Buxton Nature Reserve and Portingbury Hills.
The process
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to a full day, depending on how many windows for a typical job. In a small place like Brick End, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For sand mastic in Brick End, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
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Signs you need sand mastic in Brick End
Some old mastic was never deep enough. A thin layer does not hold well, which is why we pack deep voids first and get the depth right.
If you can see any of these, it’s time to have the joints looked at:
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
If you let a flat or house near Stansted Airport station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
- When the joint can take water or movement
- What insurance they hold