Essex · England
Sand Mastic in Stock
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Stock, with a 12-month guarantee on every job. Call for a quick quote.
- Gaps where the frame meets the masonry
- Draughty sash windows at the surround
- Gaps round a timber door in stone or brick
Sand mastic in Stock, done properly
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties where a modern sealant bead would stand out. If you have old sand mastic that has cracked, crumbled or fallen out and draughts and rain around sash boxes, we can help, on brick reveals, timber door frames and sash and case windows alike.
Around Stock, 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.
All of our work is guaranteed for twelve months, in Stock and everywhere else we cover.
- Where
- Stock (CM4)
- Region
- Essex
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Stock
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 Ingatestone Hall (about 2.5 miles west) are a reminder that the area around Stock has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Schools such as Stock Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of All Saints, the joint between an old wall and a newer frame is normally the first place rain gets in.
Stock is about 3 miles north-east of Billericay, in Essex. We carry out sand mastic for homes and businesses in Stock, as part of our work across Essex. Stock is one of 644 places in Essex we cover for sand mastic.
Our applicators cover all of the CM4 postcode area for sand mastic. That includes homes and businesses on The Square, High Street and Webster Place. Neighbouring places we cover for sand mastic include Margaretting Tye (2 miles north), Ramsden Heath (2 miles south-east), Margaretting (2 miles north-west), Downham (3 miles south-east) and Billericay (3 miles south-west). Within a short drive, we also cover Chelmsford (5 miles north), Basildon (6 miles south), Brentwood (7 miles south-west), Maldon (11 miles north-east), Canvey Island (11 miles south-east) and Rayleigh (8 miles south-east).
What’s near Stock
In Stock, that means homes and buildings near The Hoop Public House and Mayflower High School, among other places. The closest station to Stock is Billericay station, roughly 2.7 miles south-west. Other landmarks nearby include Mayflower Community Hospital (3.4 miles south-west). The countryside around Stock includes Norsey Wood.
How we quote for sand mastic
We quote each job individually. This is what makes a difference:
- Working hours on commercial sites
- Any mould that needs treating
- How many areas need sealing
- The product the joint needs
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What we need to know
To help us quote quickly, let us know:
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Where the job is, and your postcode
- Photos by email, if that is easy
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Landlord and commercial work in Stock
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
FAQs for Stock
Can you do sand mastic in Stock?
Yes. Our work covers London and the South East, and Stock is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.
Will you come out to Stock?
Yes. Stock 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.
How long will you be here?
That depends on how much there is to do, but as a guide it takes a few hours for a single window, longer for several. We’ll tell you when we quote.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Where are you based?
Mr Mastic is based in Crawley. We cover Stock and the rest of Essex.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Can you match the sealant colour?
Most of the time, yes. We’ll tell you which colours the right product comes in and agree one before any work starts.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Surface by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. For a village or hamlet like Stock, 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.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Tell us if parking is tricky
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
For sand mastic in Stock, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
When to call us in Stock
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
Keep an eye out for these signs:
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
For landlords with property near Billericay station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Whether the sealant suits the joint
- How much experience the applicator has
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid patching sand mastic with silicone
- Go gently near the mastic when preparing windows
- Renew mastic before redecorating the windows
- Do not paint over the new mastic
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
Why deal with it now?
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. In a small place like Stock, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- Homes, businesses and hotels
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
- 12-month guarantee on every job
Take a look at our cost guide or what customers say.