Essex · England
Sand mastic for sash & case windows in Bocking Churchstreet, Essex
Sand mastic across Bocking Churchstreet and nearby, with old sealant always removed completely and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
About our sand mastic in Bocking Churchstreet
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. Typical jobs include draughts and rain around sash boxes and mastic dropping out of the joint, on stone surrounds, brick reveals and period & listed homes.
Houses in smaller places like Bocking Churchstreet can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
Your job is guaranteed for a year, as with all our work.

- Where
- Bocking Churchstreet (CM7)
- Region
- Essex
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Common problems we fix in Bocking Churchstreet
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
Signs it’s time to call us include:
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
- Mastic round period door frames that has failed
- Patchy fillers round a sash window
Schools such as Bocking Church Street Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- Are they insured?
- What preparation is included
- What guarantee comes with the work
- Which colour the sealant will be
How the visit works
You don’t need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours for a single window, longer for several in most cases. For a job in Bocking Churchstreet, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
How to get a quote
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 add photos by email if you can.
Related advice
How we quote for sand mastic
For a quick quote, just ask. What matters most is:
- Any mould that needs treating
- The type of sealant required
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- Whether it has been sealed before
- Photos by email, if that is easy
- The address or postcode of the job
- Roughly how big the job is
For sand mastic in Bocking Churchstreet, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Homes in smaller places like Bocking Churchstreet can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What you get with us
- Rated 4.9 stars on Google
- More than 20 years in sealant work
- Arbo and Everbuild products
- We never seal over old sealant
See our cost guide and customer reviews.
FAQs for Bocking Churchstreet
Do you work for landlords with property near Braintree station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover Bocking Churchstreet for sand mastic?
Yes. We work across London and the South East, and Bocking Churchstreet is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Are you insured?
Yes. We’re fully insured.
How long will you be here?
As a guide, most jobs take a few hours for a single window, longer for several. Bigger jobs take longer, and we’ll say how long yours will take.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Frames and glazing around Bocking Churchstreet
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Mary the Virgin, the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Braintree station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Bocking Churchstreet is about 1 mile north of Braintree, in Essex. Every kind of property in Bocking Churchstreet can book us for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. 644 places in Essex are on our list. There’s also a page for Chelmsford, roughly 12 miles from Bocking Churchstreet.
We cover every part of CM7 for sand mastic and the streets around it. Streets in the area include Church Lane, Pelham Road and Oakley Road. Nearby, we also carry out sand mastic in High Garrett (1 mile north-east), Beazley End (2 miles north), Church End (3 miles north-west), Gosfield (3 miles north-east) and Shalford (3 miles north-west). Within a short drive, we also cover Colchester (15 miles east), Chelmsford (12 miles south), Maldon (13 miles south-east), Witham (8 miles south-east), Saffron Walden (15 miles north-west) and Camulodunum (14 miles east).
Near you in Bocking Churchstreet
In Bocking Churchstreet, that means homes and buildings near The Retreat pub, Edith Borthwick School and Bocking Blackwater. The nearest railway station is Braintree station, roughly 1.7 miles south. A little further out are Tudor House Museum (Braintree) (0.9 miles south) and Braintree Community Hospital (1.4 miles south). Green spaces nearby include Belcher's and Broadfield Woods.
Also near Bocking Churchstreet
Other services in Bocking Churchstreet
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Plan mastic work ahead of painting
- Find out about consent before window work on a listed home
- Ask a joiner to look at soft timber first
- Do not run silicone over sand mastic
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
