Thurrock · England
Sand mastic for sash & case windows in South Stifford, Thurrock
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for South Stifford, backed by a 12-month guarantee. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
What happens on the day
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. In a smaller place like South Stifford, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Mention any parking rules near the property
How to get a quote
For sand mastic in South Stifford, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Advice
About our sand mastic in South Stifford
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on sash and case windows, brick reveals and stone surrounds, and common reasons people get in touch are silicone on a period window that looks wrong and gaps round a timber door in stone or brick.
Houses in smaller places like South Stifford can stand more in the open than those in a built-up town. That is hard on the mastic around frames and sills.
All of our work is guaranteed for twelve months.

- Where
- South Stifford (RM16, RM20)
- Wider area
- Thurrock
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near South Stifford
More services for South Stifford
What the job involves on each surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.
Why deal with it now?
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In a smaller place like South Stifford, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us and we will talk you through it.
Why South Stifford customers choose us
- One-year guarantee on every job
- More than 20 years in sealant work
- Fully insured
- An ARBOMaster approved applicator
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Ask us before painting near the mastic
- Avoid heavy scraping on the mastic joint
- Ask the planning authority about consent for listed or conservation-area homes
- Keep sills and gutters clear so water drains away
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
When to call us in South Stifford
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint and we normally remove them.
If you can see any of these, it’s time to have the joints looked at:
- Mastic worn away on windows facing the weather
- Open joints round the window box
- Cracked mastic round a front door frame
- Silicone on a period window that looks wrong
For an older house near a landmark such as All Saints' Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Whether they’re fully insured
- Who does the work, and how experienced they are
- How hidden problems are handled
- Whether you can choose the colour
Sand mastic in South Stifford: 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.
Schools such as Harris Primary Academy Chafford Hundred are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Chafford Hundred station, older sash windows in a rental need their mastic kept sound to keep the weather out.
South Stifford is about 2 miles west of Grays, in Thurrock. Whether you’re in the middle of South Stifford or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 26 towns and villages across Thurrock, large and small. London is on our list too, around 17 miles away.
Postcode districts we cover here for sand mastic: RM16 and RM20. Sand mastic is available to properties on London Road, San Juan Drive and San Luis Drive. Other places close to South Stifford include West Thurrock (1 mile south-west), Greenhithe (2 miles south), Purfleet-on-Thames (2 miles west), Swanscombe (3 miles south) and Stone (3 miles south). Larger places within reach include Stanford-le-Hope (7 miles north-east), Balstonia (6 miles north-east), Corringham (8 miles east), Chadwell St Mary (3 miles east), Tilbury (3 miles south-east) and East Tilbury (5 miles east).
Local landmarks in South Stifford
In South Stifford, that means homes and buildings near Ship Public House and Chafford Hundred Business and Enterprise College, among other places. South Stifford has its own railway station: Chafford Hundred station. Other landmarks nearby include Thurrock Community Hospital (1.9 miles north-east) and Thameside Centre (1.3 miles east). Green spaces nearby include Chafford Gorges Nature Park and Sawyers Lake.
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Sash cords, weights and draught-proofing of the sashes
- Cracked or broken glass
- Planning or listed building consent (your local planning authority decides)
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Tenement windows
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
Your questions about sand mastic in South Stifford
Do you cover South Stifford for sand mastic?
Yes. Our work covers London and the South East, and South Stifford is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Do you work for landlords with property near Chafford Hundred station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
How long does sand mastic take?
It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll give you a better idea when we quote.
Should I check with the council before work on a listed or conservation-area home?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Can you seal over the old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
Can you replace silicone on a period window with sand mastic?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The type of sealant required
- Any mould that needs treating
- Access and height
- Any working-time requirements on site
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Access, such as stairs, a lift or height
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
