Essex · England
Braiswick Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Braiswick, with a one-year guarantee on every job. Call for a quick quote.
- Cracked mastic round a front door frame
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
How we handle sand mastic in Braiswick
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. Typical jobs include window mastic to renew ahead of painting and wind and rain getting in round a sash window, on tenement windows, stone surrounds and timber door frames.
Somewhere as small as Braiswick, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

- Location
- Braiswick (CO3)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
On the day, we look over the joints with you first. Surfaces next to the work are protected before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Braiswick, 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.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
Get a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
Landlords, agents and businesses in Braiswick
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
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.
Quotes for sand mastic in Braiswick
Your quote is based on your job. We look at:
- How much there is to do
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- Whether there’s mould to deal with
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
What we need to know
When you call or email, it’s useful to know:
- How we’d reach the joints
- The problem you’ve noticed
- Whether it has been sealed before
- 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 pictures if that’s easy.
What sand mastic looks like in Braiswick
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Colchester County High School for Girls are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as Church of St Leonard, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Braiswick is about 1 mile north of Camulodunum, in Essex. Braiswick gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 644 places in Essex are on our list, large and small. We also work in Chelmsford, around 20 miles away.
We cover every part of CO3 for sand mastic and the streets around it. Local streets include Park Road, Church Lane and Lexden Road, and we cover them all. Braiswick is on the A1124, so it’s easy for us to get to with everything needed for sand mastic. Close by, we work in Camulodunum (1 mile south), Lexden (1 mile south), Colchester (1 mile east), Abbey Field (2 miles south-east) and Beacon End (2 miles west). Further out, we also cover Braintree (13 miles west), Clacton-on-Sea (13 miles south-east), Maldon (14 miles south-west), Witham (12 miles south-west), Halstead (11 miles west) and Heybridge (13 miles south-west).
Local landmarks in Braiswick
Typical jobs here are in homes near Spring Lane Meadows, The Sun Inn and Home Farm Primary School and the streets around them. Braiswick’s nearest station is Colchester station, about 1.2 miles north-east of the centre. Well-known places in the area include Colchester Castle (1.4 miles east) and Social History Museum (1.2 miles east). Green spaces nearby include Lexden Gathering Grounds.
Signs you need sand mastic in Braiswick
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
Look out for any of the following:
- Open joints round the window box
- Failed mastic on an exposed elevation
- Cracked mastic round a front door frame
- Window mastic to renew ahead of painting
Rented homes near Colchester station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before booking
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- How long to leave it before use
- Whether all the old sealant comes out first
How the job changes by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Common questions in Braiswick
Can you do sand mastic in Braiswick?
Yes, Braiswick is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Is Braiswick within the area you cover?
Yes. Braiswick is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
When it isn’t the sealant
Sealant isn’t the answer to every problem, and we will tell you before work begins. Sealant won’t put right:
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Braiswick
- Stone surrounds
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
- Tenement windows
