Essex · England
High Park Corner Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in High Park Corner, with a 12-month guarantee on every job. Ask us for a quote.
- Mastic dropping out of the joint
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours per window, depending on the condition of the joints. In a small place like High Park Corner, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
About our sand mastic in High Park Corner
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it and tidies the surround. We work on brick reveals, period & listed homes and stone surrounds, and the jobs we see most are draughty sash windows at the surround and old cement repairs round a window that have failed.
Around High Park Corner, 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- High Park Corner (CO5)
- Wider area
- Essex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Sand mastic in High Park Corner: local notes
High Park Corner is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
Managing a site like Fingringhoe Church of England Voluntary Aided Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Wivenhoe station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
High Park Corner is about 4 miles south-east of Colchester, in Essex. Across the CO5 area, our applicators can take on sand mastic. We cover 644 towns and villages across Essex. You can also see our page for Chelmsford, roughly 22 miles from High Park Corner.
Work in CO5 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on Church Road, Brook Hall Road and Frere Way. Neighbouring places we cover for sand mastic include East Donyland (1 mile north-west), Wivenhoe Quay (1 mile north), Rowhedge (1 mile north-west), Fingringhoe (1 mile west) and Wivenhoe (1 mile north). We also work in nearby towns such as Colchester (4 miles north-west), Clacton-on-Sea (9 miles east), Maldon (14 miles south-west), Witham (14 miles west), Harwich (14 miles north-east) and Camulodunum (4 miles north-west).
Around High Park Corner
Locally, jobs take us to homes and businesses close to Colne Local Nature Reserve and The Rose And Crown Public House. The nearest railway station is Wivenhoe station, roughly 0.7 miles north of the centre. Nearby you will also find Colchester Castle (3.9 miles north-west) and Lion Walk (3.9 miles north-west). For a walk, there’s Fingringhoe Wick.
When to call us in High Park Corner
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
It’s worth asking for a quote if you see:
- Crumbling sand mastic round a window
- Cement or filler used on old window joints that has cracked
- Draughty sash windows at the surround
- Open joints round the window box
In the older streets around The Church of St Mary, the joint between an old wall and a newer frame is normally the first place rain gets in.
What your quote should include
- Are they insured?
- Who turns up on the day
- How long the guarantee is
- What happens if they find a problem under the old sealant
What affects the cost of sand mastic
We quote each job individually. This is what makes a difference:
- Any working-time requirements on site
- Whether the work is at height
- The size of the job
- The product the joint needs
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- Whether it has been sealed before
- Roughly how big the job is
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Places near High Park Corner
Also in High Park Corner
What the job involves on each surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Common questions in High Park Corner
Will you come out to High Park Corner?
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 sand mastic in a coastal place like High Park Corner any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We’ll explain what to expect before we leave.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or email us.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you replace silicone on a period window with sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Check the mastic when you check the paintwork
- Keep modern sealant off the mastic
- Go gently near the mastic when preparing windows
- Sort the mastic before the decorators arrive
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
DIY sealant or a professional job?
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.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.