Essex · England
Sand mastic for sash & case windows in Billericay, Essex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Billericay. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Old cement repairs round a window that have failed
- Mastic worn away on windows facing the weather
- Cracked mastic round a front door frame
How we handle sand mastic in Billericay
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted and we will advise if you are redecorating. Typical jobs include draughty sash windows at the surround and silicone on a period window that looks wrong, across brick reveals, tenement windows and sash and case windows.
In a town like Billericay, the windows on the most exposed side of a house take the brunt of the rain, and that is usually where the sealant gives up first. It’s worth looking at every frame, not just the one that leaks.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Billericay (CM12, CM11, CM4)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for sand mastic
There’s no set price list, because no two jobs are the same. What we look at:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- The size of the job
- Working hours on commercial sites
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- A few pictures by email, if you can
- The rough size of the job
- Whether it has been sealed before
- Any access issues, like height or stairs
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
FAQs for Billericay
What guarantee comes with sand mastic in Billericay?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you work for landlords with property near Billericay station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Do you work in Billericay?
Yes. We are based in Crawley and work across South East England, London and Scotland.
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 match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Where are you based?
Mr Mastic is based in Crawley. We cover Billericay and the rest of Essex.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Different surfaces, different methods
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Landlords, agents and businesses in Billericay
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Housing providers, facilities teams and property managers book us too in Billericay and across Essex. Several sites can be quoted together, and we’re fully insured for the work.
When to call us in Billericay
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber, and they usually need raking out.
Keep an eye out for any of the following:
- Draughty sash windows at the surround
- Failed mastic on an exposed elevation
- Tired mastic found when preparing windows for paint
- Cracked mastic round a front door frame
In the older streets around Church of St Mary Magdalene, the joint between an old wall and a newer frame is normally the first place rain gets in.
What to look for in a quote
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- What insurance they hold
Windows and doors in Billericay
Historic houses like Ingatestone Hall (about 2.7 miles north-west) are a reminder that the area around Billericay has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Billericay station, any sash windows need sound mastic to keep draughts and rain out. Schools such as Sunnymede Junior School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Billericay is about 4 miles north of Basildon, in Essex. Billericay gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 644 towns and villages across Essex, large and small. We also work in Chelmsford, around 8 miles away.
Postcode districts we cover here for sand mastic: CM12, CM11 and CM4. Sand mastic is available to properties on High Street, Station Road and London Road. Billericay sits on or near the A129 and A176, so getting to you is simple. If you’re just outside Billericay, we cover Little Burstead (2 miles south), Great Burstead (2 miles south-east), Ramsden Heath (2 miles east), Ramsden Bellhouse (3 miles east) and Stock (3 miles north-east). Within a short drive, we also cover Chelmsford (8 miles north), Basildon (4 miles south), Brentwood (5 miles west), Maldon (13 miles north-east), Canvey Island (10 miles south-east) and Rayleigh (8 miles east). As one of the bigger places in Essex, Billericay has every kind of property, from flats to offices.
Near you in Billericay
We work in homes and buildings around Lake Meadows, The Railway pub and The Billericay School and the streets around them. Billericay has its own railway station: Billericay station. Nearby you will also find Mayflower Community Hospital (0.9 miles south-west) and Barleylands Farm Museum (2.1 miles south-east). Not far away are Norsey Wood.
How it works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a single window, longer for several. In Billericay, parking is rarely complicated, though it helps to know about driveways or restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling 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
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.
Related advice
Also near Billericay
What else we do in Billericay
Why it’s worth doing now in Billericay
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Around Billericay, failed sealant lets water into hidden places, such as under the floor, behind a panel or into a wall. Left alone, that means rot, damp and a bigger repair.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why us?
- ARBOMaster approved applicator
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and customer reviews.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.