Essex · England
Sand mastic for sash & case windows in Easthorpe, Essex
Sand mastic for Easthorpe and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Wind and rain getting in round a sash window
- Gaps where the frame meets the masonry
- Failed mastic on an exposed elevation
About our sand mastic in Easthorpe
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. If you have patchy fillers round a sash window and mastic round period door frames that has failed, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Easthorpe is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months.
- Place
- Easthorpe (CO5)
- Region
- Essex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Landlords, agents and businesses in Easthorpe
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
Nearby places to Easthorpe
Also in Easthorpe
Leave it or put it right?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. Where a wall is exposed, as many are in small places like Easthorpe, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
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 email us for an honest opinion and a quote.
Why Easthorpe customers choose us
- 12-month guarantee on every job
- More than 20 years in sealant work
- Sanitary silicone with an anti-fungal additive in wet areas
- Neat joints and a tidy finish
Take a look at what affects the cost and what customers say.
When it is not the sealant
It helps to know what we cannot do too:
- Whether work needs listed building consent
- Decayed frames that need repair
- Masonry that needs repairing
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Stone surrounds
- Tenement windows
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
Your questions about sand mastic in Easthorpe
I let a flat near Marks Tey station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Is Easthorpe within the area you cover?
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.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Easthorpe, along with the rest of our area.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.
How do I get a quote for sand mastic in Easthorpe?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll talk you through it.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
What we do, step by step
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work usually takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Easthorpe, the journey is planned in advance: 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.
- 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 finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
- Mention if the joints have been sealed before
Ask for a quote
Asking for a quote is easy: tell us what needs doing and where. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Read more
What sand mastic looks like in Easthorpe
With historic houses such as Layer Marney Tower (about 2.7 miles south) nearby, there’s older building stock in the area around Easthorpe as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Easthorpe is about 6 miles west of Colchester, in Essex. We provide sand mastic to homes and businesses in Easthorpe and the surrounding area. 644 places in Essex are on our list, large and small. You can also see our page for Chelmsford, about 15 miles away.
Postcode districts we cover here for sand mastic: CO5. Nearby, we also carry out sand mastic in Mulberry Green (1 mile north-east), Marks Tey (1 mile north), Little Tey (2 miles north-west), Copford (2 miles north-east) and Messing (2 miles south-west). Within a short drive, we also cover Colchester (6 miles east), Chelmsford (15 miles south-west), Braintree (9 miles west), Maldon (10 miles south-west), Witham (7 miles south-west) and Camulodunum (4 miles east).
Local landmarks in Easthorpe
Around Easthorpe, our work takes us to homes and buildings near House Without A Name Public House. For rail, the closest station is Marks Tey station, about 1.5 miles north. Well-known places in the area include Anchor Press Museum (3.3 miles south) and Birch Castle (2.2 miles south-east). Not far away are Iron Latch.
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
- Take care around the mastic when scraping paint
- Have rotten timber repaired before new mastic goes in
Avoid painting over the new mastic, as traditional guidance advises. If you’re redecorating, ask us first.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Common problems we fix in Easthorpe
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
It’s worth asking for a quote if you see:
- Wind and rain getting in round a sash window
- Gaps where the frame meets the masonry
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
If you let a flat or house near Marks Tey station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- Who turns up on the day
- Whether they’re fully insured
- How hidden problems are handled
- Which sealant they’ll use, and why
Surface by surface
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
