Essex · England
Sand Mastic in Cock Street
Our applicators work in Cock Street 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.
- Gaps round a timber door in stone or brick
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Cock Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Move anything stored near the joints
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or send us an email.
Advice
How we handle sand mastic in Cock Street
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you’re dealing with mastic that needs renewing before redecorating and weathered mastic on the most exposed windows, we can help.
Around Cock Street, 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, and the guarantee is the same wherever you are.
- Where
- Cock Street (CO6)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Windows and doors in Cock 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.
Homes close to St Matthew's Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. For landlords with property near Bures station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Cock Street is in Essex. If you need sand mastic in Cock Street, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Essex from our Crawley base. Across Essex, we cover 644 places, and Cock Street is one of them. We also work in Chelmsford, around 24 miles away.
We cover every part of the CO6 postcode area for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Leavenheath (1 mile west), Stoke-by-Nayland (1 mile east), Nayland (1 mile south-east), Wissington (2 miles south) and Little Horkesley (3 miles south). Further out, we also cover Colchester (7 miles south), Braintree (15 miles south-west), Camulodunum (7 miles south), Halstead (10 miles west), Greenstead (8 miles south-east) and Tiptree (13 miles south).
Landmarks near Cock Street
Around Cock Street, our work takes us to homes and buildings near Lion pub and the streets around them. Cock Street’s nearest station is Bures station, about 4 miles west. Nearby you’ll also find Mount Bures (4.3 miles south-west) and Severalls Hospital (5.3 miles south). Not far away are Arger Fen.
How we quote for sand mastic
We don’t publish a price list, because no two jobs are the same. What we look at:
- The number of rooms or windows
- Any mould that needs treating
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
What to tell us for a quote
When you contact us, it’s useful to know:
- Where the job is, and your postcode
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- The rough size of the job
Want a quote for sand mastic? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Landlords and agents in Cock Street can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Crumbling stone or brickwork round the window
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Cock Street
- Sash and case windows
- Stone surrounds
- Timber door frames
- Tenement windows
- Period & listed homes
- Brick reveals
Aftercare tips
A little care helps the new joints last. We recommend:
- Go gently near the mastic when preparing windows
- Do not paint over the new mastic
- Find out about consent before window work on a listed home
- Avoid patching sand mastic with silicone
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is generally favoured.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Places near Cock Street
Also in Cock Street
Cock Street questions
Can you do sand mastic in Cock Street?
Yes. Our work covers London and the South East, and Cock Street is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Bures station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
How much does sand mastic cost in Cock Street?
Size, access and the old material all affect the cost. Ask us for a quote.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Can you replace silicone on a period window with sand mastic?
Yes, we do this often. All the old silicone is removed first so the mastic beds in well.
How long does the job take?
A typical job takes a few hours for a single window, longer for several, including the preparation. Your quote will say how long we expect yours to take.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.