Kent · England
Sand mastic for sash & case windows in Eddington, Kent
Specialist sand mastic for Eddington: careful preparation, the right product and tidy work. Call for a quick quote.
- Cracked mastic round a front door frame
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
How we handle sand mastic in Eddington
We work across Eddington renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have draughts and rain around sash boxes and tired mastic found when preparing windows for paint, we can put it right.
Homes around Eddington range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- Eddington (CT6)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Why act early in Eddington
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Eddington, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Doing several joints on one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- Old sealant always removed completely
- Tidy, careful work
- Quality sealants from Arbo and Everbuild
- More than 20 years in sealant work
See our cost guide and our reviews.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
When to call us in Eddington
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
It’s worth asking for a quote if you see:
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
- Mastic round period door frames that has failed
- Tired mastic found when preparing windows for paint
Letting a property close to Herne Bay station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- What guarantee comes with the work
- Who turns up on the day
- What product goes in the joint
- How the surfaces are prepared before sealing
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Sort the mastic before the decorators arrive
- Inspect the joints round the windows every year or so
- Clear gutters so water does not pour onto the windows
- Ask us before painting near the mastic
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
What the job involves on each surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
When something else is needed
We will always be straight with you, so here’s what sealant can’t fix:
- Decisions on consent for listed homes
- Damaged stone surrounds
- Broken panes
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Where we work in Eddington
- Period & listed homes
- Timber door frames
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
FAQs for Eddington
Is sand mastic in a coastal place like Eddington 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.
Do you work for landlords with property near Herne Bay station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you have insurance?
Yes. Mr Mastic is fully insured.
Can you match the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick generally suit sand mastic, while modern frames normally get a flexible sealant.
How do I get a quote for sand mastic in Eddington?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or send us an email with a short description of the job.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours for a single window, longer for several. We will give you a better idea when we quote.
What happens on the day
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. A visit to Eddington is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Get a quote
We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details, and photos are welcome.
Advice
Eddington homes and the weather
Eddington 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. London and the South East are among 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 Martin include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as Herne Bay High School, larger buildings have plenty of frames, and the mastic around each one ages.
Eddington is about 1 mile south-west of Herne Bay, in Kent. Wherever you are in the CT6 postcode area, we cover sand mastic for homes and businesses. Our area takes in 922 places across Kent, from the larger towns to small villages. We also work in Chelmsford, about 38 miles from Eddington.
Work in CT6 works the same way as everywhere else we cover. We cover properties on Parkland Road, Cooper Drive and Sidney Grove and the roads around them. If you are just outside Eddington, we cover Bullockstone (1 mile south-west), Herne (1 mile south-east), Greenhill (1 mile west), Hunters Forstal (1 mile east) and Herne Bay (1 mile north-east). We also work in nearby towns such as Canterbury (6 miles south), Margate (11 miles east), Ramsgate (13 miles east), Broadstairs (13 miles east), Whitstable (4 miles west) and Deal (15 miles south-east).
Landmarks near Eddington
Locally, jobs take us to homes and businesses close to Herne Bay Infant School, Queen's Head Public House and Curtis Wood and the streets around them. The nearest railway station is Herne Bay station, about 0.5 miles north-west. A little further out are Tankerton Castle (3.8 miles west) and Whitstable and Tankerton Hospital (3.2 miles west). Open spaces near Eddington include West Blean and Thornden Woods.
