Essex · England
Sand mastic for sash & case windows in Stocks Green, Essex
Our applicators work in Stocks Green on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Mastic round period door frames that has failed
- Modern sealant on a period surround
- Failed mastic on an exposed elevation
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Working hours on commercial sites
- How many areas need sealing
- Whether the work is at height
- The old material and how stubborn it is
Doing several joints on one visit is normally more efficient than separate visits. We will give you a clear price for the lot.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- The address or postcode of the job
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details and send pictures if you have them.
Sand mastic for homes and businesses in Stocks Green
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it and tidies the surround. If you have wind and rain getting in round a sash window and patchy fillers round a sash window, we can put it right.
Around Stocks Green, 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.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or send us an email.

- Where
- Stocks Green (CO5)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Stocks Green
Historic houses like Layer Marney Tower (about 4 miles south-east) are a reminder that the area around Stocks Green 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. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Feering Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Kelvedon station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Stocks Green is about 5 miles north-east of Witham, in Essex. Whether you’re in the middle of Stocks Green or further out, sand mastic is available for homes and businesses alike. Stocks Green is one of 644 places in Essex we cover for sand mastic. We also work in Chelmsford, around 13 miles away.
Every address in CO5 is within our area for sand mastic. Neighbouring places we cover for sand mastic include Skye Green (1 mile north), Feering (1 mile south), Surrex (1 mile north), Broad Green (1 mile north) and Little Tey (2 miles north-east). We also work in nearby towns such as Colchester (8 miles east), Chelmsford (13 miles south-west), Braintree (7 miles west), Maldon (9 miles south), Witham (5 miles south-west) and Camulodunum (7 miles east).
What’s near Stocks Green
We work in homes and buildings around The Bell Inn, Honywood Community Science School and Brockwell Meadows. The nearest railway station is Kelvedon station, roughly 1.5 miles south-west of the centre. Well-known places in the area include Birch Castle (4.2 miles east) and Laundry & Mangle Museum (2.4 miles west). Green spaces nearby include Tiptree Heath Nature Reserve.
FAQs for Stocks Green
I let a flat near Kelvedon station. Can you help?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Is Stocks Green in your area for sand mastic?
Yes. Our work covers London and the South East, and Stocks Green is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear quote.
Can I choose the sealant colour?
In most cases you can choose. We’ll explain which colours are available.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Should I use sand mastic or silicone?
We’ll help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Stocks Green.
What happens if it’s left?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. In a small place like Stocks Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Leaving a failed joint generally makes the job bigger, not smaller. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What you get with us
- We never seal over old sealant
- Trusted Arbo and Everbuild sealants
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Masonry that needs repairing
- Sash cords, weights and draught-proofing of the sashes
- Cracked or broken glass
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Sash and case windows
- Tenement windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Period & listed homes
The process
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job generally takes a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. For a village or hamlet like Stocks Green, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
- Keep children and pets away from the work area
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
What we’re called out for in Stocks Green
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
Look out for these signs:
- Cracked mastic round a front door frame
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
For an older house near a landmark such as Parish Church of All Saints, the joint between an old wall and a newer frame is generally the first place rain gets in.
Before you book anyone
- What happens if the job turns out different
- Who does the work, and how experienced they are
- Whether you can choose the colour
- Which sealant they’ll use, and why
Also near Stocks Green
More services for Stocks Green
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
