Kent · England
Sand mastic for sash & case windows in Eythorne, Kent
Sand mastic for Eythorne and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
- Silicone on a period window that looks wrong
What sand mastic looks like in Eythorne
With historic houses such as Goodnestone Park (about 3.6 miles north-west) nearby, there’s older building stock in the area around Eythorne 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Eythorne Elvington Community Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Shepherds Well station, any sash windows need sound mastic to keep draughts and rain out.
Eythorne is about 4 miles north of Dover, in Kent. We carry out sand mastic for homes and businesses in Eythorne and the surrounding area, as part of our work across Kent. Eythorne is one of 922 places in Kent where we work. Chelmsford is on our list too, about 50 miles from Eythorne.
Every address in CT15 is covered for sand mastic. Sand mastic is available to properties on The Street, Sandwich Road and New Road and the roads around them. Close by, we work in Waldershare (1 mile south-west), Sibertswold (2 miles south-west), Coldred (2 miles south-west), Halfway Street (2 miles south-west) and Lydden (3 miles south-west). Further out, we also cover Canterbury (10 miles north-west), Margate (14 miles north), Dover (4 miles south), Folkestone (9 miles south-west), Ramsgate (11 miles north-east) and Broadstairs (13 miles north-east).
Near you in Eythorne
We work in homes and buildings around The White Horse pub, among other places. Eythorne’s nearest station is Shepherds Well station, roughly 1.8 miles west. A little further out are Dover Transport Museum (3.5 miles south) and Buckland Hospital (4.7 miles south).
How we handle sand mastic in Eythorne
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on brick reveals, tenement windows and stone surrounds, and common reasons people get in touch are window mastic to renew ahead of painting and patchy fillers round a sash window.
Mastic can only go onto a dry, clean joint, so window work in Eythorne is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job.
- Where
- Eythorne (CT15)
- Wider area
- Kent
- Cover
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Eythorne
Also in Eythorne
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. In a small place like Eythorne, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Mention any parking rules near the property
- Mention any tricky access
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.
Read more
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Any mould that needs treating
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
When you contact us, it’s useful to know:
- Where the job is, and your postcode
- Whether it’s a home or a business
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Eythorne questions
Is Eythorne within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Shepherds Well station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you have insurance?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours for a single window, longer for several. We will give you a better idea when we quote.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can you replace silicone on a period window with sand mastic?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
What guarantee comes with the work?
All our work has a one-year guarantee, and we’re fully insured.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we’ll advise.
Why deal with it now?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Older cottages and farmhouses around Eythorne can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll go through it with you.
Why book with us
- We never seal over old sealant
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
- Tidy, careful work
What we’re called out for in Eythorne
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
The problems people generally mention when they call include:
- Draughty sash windows at the surround
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
In the older streets around Church of St Peter and St Paul, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- Is VAT in the price?
- How long to leave it before use
- What preparation is included
- Which sealant they’ll use, and why
Keeping the joints in good condition
After the cure time, these simple habits help:
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
- Do not paint over the new mastic
- Get any rot dealt with first
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Cracked or broken glass
- Sashes that need overhauling
- Damaged stone surrounds
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Eythorne
- Tenement windows
- Timber door frames
- Stone surrounds
- Sash and case windows
- Brick reveals
- Period & listed homes