Essex · England
Sand Mastic in Monk Street
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Monk Street and across Essex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic worn away on windows facing the weather
- A silicone bead on a sash window that spoils the look
- Mastic dropping out of the joint
How we quote for sand mastic
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- Whether the work is at height
- How many rooms, windows or areas are involved
- The size of the job
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and send you a clear quote before any work starts.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- A few photos by email, if you can
- The rough size of the job
- The problem you’ve noticed
- How we’d reach the joints
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
Sand mastic in Monk Street, done properly
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic is the traditional choice, and we can replace one with the other. We work on brick reveals, timber door frames and tenement windows, and common reasons people get in touch are old cement repairs round a window that have failed and crumbling sand mastic round a window.
Outdoor sealant needs dry, clean surfaces, so work on frames around Monk Street is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Monk Street (CM6)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. Somewhere like Monk Street needs a little journey planning: 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.
- 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.
- The surface is finished to suit the stone or brick.
How to prepare
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Getting a quote
If you’re in Monk Street and need sand mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
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Why act early in Monk Street
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Monk Street can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why Monk Street customers choose us
- Old sealant always removed completely
- 180+ five-star Google reviews
- ARBOMaster approved applicator
- We leave the area clean and tidy
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Frames and glazing around Monk Street
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. Historic houses like Horham Hall (about 1.5 miles west) are a reminder that the area around Monk Street has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Historic houses such as Horham Hall, about 1.5 miles west, show how far back building around Monk Street goes, and older homes nearby need a sealant that suits their walls.
Monk Street is about 7 miles south-east of Saffron Walden, in Essex. Homes, rented property, offices and hotels in Monk Street can book us for sand mastic. Every job comes with our 12-month guarantee. 644 places in Essex are on our list, from the larger towns to small villages. We also work in Chelmsford, around 15 miles away.
Every address in CM6 is covered for sand mastic. If you need sand mastic at a property on Folly Mill Lane and Monk Street or a nearby road, our applicators can take on the job. If you’re just outside Monk Street, we cover Sibley's Green (1 mile south-east), Thaxted (1 mile north), Duton Hill (1 mile south-west), Bardfield End Green (1 mile north-east) and Cutlers Green (2 miles north-west). Larger places within reach include Chelmsford (15 miles south-east), Braintree (10 miles east), Harlow (15 miles south-west), Witham (15 miles south-east), Saffron Walden (7 miles north-west) and Halstead (13 miles east).
Around Monk Street
In Monk Street, that means homes and buildings near Greyhound Public House and the streets around them. Monk Street’s nearest station is Stansted Airport station, about 4.7 miles south-west of the centre. Other landmarks nearby include Little Easton Moat (3.4 miles south). The countryside around Monk Street includes West Wood.
Towns and villages near Monk Street
Other services in Monk Street
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
When to call us in Monk Street
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
It’s worth asking for a quote if you see:
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
For landlords with property near Stansted Airport station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- Whether the sealant suits the joint
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not
Aftercare tips
Looking after new joints is easy:
- Make sure water runs off the sill
- Renew mastic before redecorating the windows
- Keep modern sealant off the mastic
- Take care around the mastic when scraping paint
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Your questions about sand mastic in Monk Street
Is Monk Street within the area you cover?
Yes, smaller places are covered as well as towns. We work across 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 Stansted Airport station?
Yes. We work for letting agents and landlords as well as homeowners. 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.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.