Essex · England
Loyter's Green Sand Mastic
Sand mastic across Loyter's Green and nearby, with every bit of old sealant taken out first.
- Crumbling sand mastic round a window
- Draughts and rain around sash boxes
- Gaps round a timber door in stone or brick
Honest limits
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Loyter's Green
- Sash and case windows
- Tenement windows
- Period & listed homes
- Stone surrounds
- Timber door frames
- Brick reveals
Sand mastic in Loyter's Green
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. Typical jobs include mastic round period door frames that has failed and patchy fillers round a sash window, on brick reveals, tenement windows and timber door frames.
Around Loyter's 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 of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Loyter's Green (CM17)
- Wider area
- Essex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of sand mastic
For a quick quote, just ask. What matters most is:
- How many areas need sealing
- Access and height
- Mould in or behind the old joints
- The size of the job
The cost depends on the amount of work, 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.
Asking for a quote
What to tell us when you ask for a quote:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- The problem you’ve noticed
- The rough size of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Frames and glazing around Loyter's Green
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Harlow Mill station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Loyter's Green is about 3 miles east of Harlow, in Essex. From the centre of Loyter's Green to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 644 places in Essex are on our list. There’s also a page for Chelmsford, about 13 miles away.
All of CM17 is within our area for sand mastic. Neighbouring places we cover for sand mastic include Matching Tye (1 mile north), Housham Tye (1 mile north-west), Matching (1 mile north), Magdalen Laver (1 mile south) and Newman's End (1 mile north). We also work in nearby towns such as Chelmsford (13 miles east), Harlow (3 miles west), Brentwood (11 miles south-east), Billericay (14 miles south-east), Loughton (10 miles south-west) and Waltham Abbey (10 miles south-west).
Around Loyter's Green
For rail, the closest station is Harlow Mill station, about 3 miles north-west of the centre. Other landmarks nearby include Princess Alexandra Hospital (4.6 miles west) and Harlow Mill (3.2 miles north-west). For a walk, there’s Sawbridgeworth Marsh.
Signs you need sand mastic in Loyter's Green
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Common reasons people contact us include:
- Tired mastic found when preparing windows for paint
- Crumbling sand mastic round a window
- Gaps round a timber door in stone or brick
- Old cement repairs round a window that have failed
In the older streets around Parish Church of St Mary Magdalen, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- How much experience the applicator has
- What happens if the job turns out different
FAQs for Loyter's Green
Will you come out to Loyter's Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Loyter's Green in your area for sand mastic?
Yes, Loyter's Green is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first.
What is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
How do I get a quote for sand mastic in Loyter's Green?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant, and we’ll explain why.
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Towns and villages near Loyter's Green
Also in Loyter's Green
What happens if it’s left?
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Loyter's Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Loyter's Green customers choose us
- Domestic, commercial and hotel work
- Neat joints and a tidy finish
- Every job guaranteed for a year
- Fully insured
Read what affects the cost or our reviews.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Take care around the mastic when scraping paint
- Clear gutters so water does not pour onto the windows
- Sort the mastic before the decorators arrive
- Ask a joiner to look at soft timber first
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from a few hours to a full day, depending on how many windows. In a small place like Loyter's Green, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
Getting a quote
Want a quote for sand mastic? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.