Essex · England
Sand Mastic in Row Green
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Row Green, with a one-year guarantee on every job. Call for a quick quote.
- Cracked mastic round a front door frame
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
Sand mastic in Row Green, done properly
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on timber door frames, tenement windows and stone surrounds, and people most often call us about gaps round a timber door in stone or brick and old sand mastic that has cracked, crumbled or fallen out.
Around Row Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work is covered by a 12-month guarantee, wherever you are in Essex.
- Where
- Row Green (CM77)
- Region
- Essex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Row Green and across Essex. Several sites can be quoted together, and we are fully insured for the work.
Landlords and letting agents in Row Green can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Why act early in Row Green
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. Where a wall is exposed, as many are in small places like Row Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why book with us
- Homes, businesses and hotels
- Fully insured
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
See our cost guide and customer reviews.
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Crumbling stone or brickwork round the window
- Putty and glazing repairs
- Decayed frames that need repair
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Period & listed homes
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
Common problems we fix in Row Green
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint, and they normally need raking out.
The problems people usually mention when they call are:
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
For an older house near a landmark such as The Church in Great Notley, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- The length of the guarantee
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- When the joint can take water or movement
Sand mastic in Row Green: local notes
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.
Letting a property close to Braintree station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as White Court School, its window and door frames need their mastic kept sound, just like a home’s.
Row Green is about 2 miles south-west of Braintree, in Essex. Homes, rented property, offices and hotels in Row Green is covered for sand mastic. Every job comes with our 12-month guarantee. Our area takes in 644 places across Essex. We also work in Chelmsford, around 8 miles away.
Every address in CM77 is within our area for sand mastic, from the main roads to the quietest streets. Close by, we work in Great Notley (1 mile north-west), Young's End (1 mile south-west), Black Notley (1 mile east), The Green (2 miles south-east) and Little Common (2 miles north-west). We also work in nearby towns such as Chelmsford (8 miles south), Maldon (11 miles south-east), Witham (6 miles south-east), Camulodunum (14 miles east), Halstead (7 miles north-east) and Great Dunmow (8 miles west).
Landmarks near Row Green
Typical jobs here are in homes near Cuckoo Wood, The Essex Cricketers pub and Notley High School and Braintree Sixth Form, among other places. The closest station to Row Green is Braintree station, roughly 1.6 miles north-east of the centre. A little further out are Tudor House Museum (Braintree) (2.4 miles north) and William Julien Courtauld Hospital (1.4 miles north). The countryside around Row Green includes Sandylay and Moat Woods.
Row Green questions
Do you cover Row Green for sand mastic?
Yes. Our work covers London and the South East, and Row Green is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
Will you come out to Row Green?
Yes. Row Green 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.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Can you replace silicone on a period window with sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
How long does the job take?
That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We will give you a better idea when we quote.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- Any working-time requirements on site
- How many areas need sealing
- How easy the joints are to reach
- The old material and how stubborn it is
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.
What we do, step by step
The work is kept neat and contained to the joints we are treating, so you can get on with your day. The job normally 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. Somewhere as small as Row Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work before giving you a price.