Essex · England
Sand mastic for sash & case windows in Thorpe Cross, Essex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Thorpe Cross. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
Sand mastic for homes and businesses in Thorpe Cross
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes, where modern sealant can look out of place. We work on period & listed homes, tenement windows and sash and case windows, and people most often call us about failed mastic on an exposed elevation and wind and rain getting in round a sash window.
Homes in small places like Thorpe Cross often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Your job is guaranteed for a year, as with all our work.
- Location
- Thorpe Cross (CO16)
- Wider area
- Essex
- Cover
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Replacing sash windows is a big decision for a period home, 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 Thorpe Cross can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
- Neat joints and a tidy finish
- Domestic, commercial and hotel work
See what affects the cost or our reviews.
For landlords and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What affects the cost of sand mastic
Jobs vary more than people expect. What affects the quote:
- Mould in or behind the old joints
- How much there is to do
- The old material and how stubborn it is
- Which sealant suits the joint
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Helping us quote
When you contact us, these details help:
- Photos by email, if that’s easy
- The rough size of the job
- If someone has resealed it before
- What’s wrong with the joints now
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Surface by surface
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Towns and villages near Thorpe Cross
What else we do in Thorpe Cross
Windows and doors in Thorpe Cross
Thorpe Cross is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Thorpe Hall (about 0.8 miles west) nearby, there’s older building stock in the area around Thorpe Cross as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Rolph CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Thorpe-Le-Soken station? Then any sash windows need sound mastic to keep draughts and rain out.
Thorpe Cross is about 4 miles north-east of Clacton-on-Sea, in Essex. Homes, rented property, offices and hotels in Thorpe Cross can book us for sand mastic. The work is guaranteed for a year. 644 places in Essex are on our list. Chelmsford is on our list too, around 31 miles away.
Work in CO16 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on Damant's Farm Lane and Frinton Road. If you are just outside Thorpe Cross, we cover Thorpe-le-Soken (1 mile north-west), Pig Street (1 mile south-west), Thorpe Green (2 miles north-west), Far Thorpe Green (2 miles west) and Beaumont (2 miles north-west). Within a short drive, we also cover Colchester (13 miles west), Clacton-on-Sea (4 miles south-west), Harwich (6 miles north-east), Camulodunum (14 miles west), Greenstead (11 miles west) and Wivenhoe (10 miles west).
Around Thorpe Cross
For rail, the closest station is Thorpe-Le-Soken station, roughly 1.2 miles west of the centre. Open spaces near Thorpe Cross include Great Holland Pits.
The process
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. The job usually takes a few hours per window, depending on the condition of the joints. Somewhere like Thorpe Cross needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Clear the area around the work
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and send you a clear quote before any work starts.
Read more
When to call us in Thorpe Cross
Shallow joints are a common cause. A thin layer does not hold well so we make sure the new mastic is the right thickness.
Signs it’s time to call us include:
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
In the older streets around Parish Church of St Michael, the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before you book
- How the surfaces are prepared before sealing
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- Whether the sealant suits the joint
Questions from Thorpe Cross
Will you come out to Thorpe Cross?
Yes, Thorpe Cross is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Thorpe-Le-Soken station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
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.
Can you match the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Which is right for my windows, sand mastic or modern sealant?
We’ll talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They decide whether consent is needed.