Kent · England
Sand mastic for sash & case windows in Grove, Kent
Problem with your window and door surrounds in Grove? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps where the frame meets the masonry
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
Sand mastic for homes and businesses in Grove
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. Typical jobs include gaps round a timber door in stone or brick and open joints round the window box, on tenement windows, stone surrounds and brick reveals.
In a village or hamlet like Grove, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- Grove (CT3)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Masonry that needs repairing
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Stone surrounds
- Sash and case windows
- Timber door frames
- Tenement windows
- Period & listed homes
- Brick reveals
Surface by surface
Period and listed homes
Period homes look their best with traditional materials.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Check the mastic when you check the paintwork
- Leave the new mastic unpainted
- Clear gutters so water does not pour onto the windows
- Find out about consent before window work on a listed home
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Grove homes and the weather
With historic houses such as Goodnestone Park (about 4.7 miles south) nearby, there’s older building stock in the area around Grove as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mildred 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 Preston Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Grove is about 5 miles south-east of Herne Bay, in Kent. Anywhere in CT3, our applicators can take on sand mastic. Grove is one of 922 towns and villages in Kent where we work for sand mastic. Chelmsford is on our list too, around 43 miles away.
All of CT3 is covered for sand mastic. Neighbouring places we cover for sand mastic include Preston (1 mile south-east), Upstreet (1 mile north), West Stourmouth (1 mile north-east), East Stourmouth (2 miles east) and Sarre (2 miles north-east). Larger places within reach include Canterbury (6 miles west), Margate (9 miles north-east), Dover (13 miles south), Ramsgate (9 miles east), Broadstairs (10 miles east) and Whitstable (8 miles west).
What’s near Grove
Typical jobs here are in homes near The Grove Ferry Inn and Grove Ferry Picnic Area. For rail, the closest station is Sturry station, about 3.8 miles west of the centre. Well-known places in the area include St Martins Hospital (4.9 miles south-west).
Places near Grove
What else we do in Grove
Grove questions
Can you help a landlord with a rental near Sturry station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Grove?
Yes, Grove is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long does sand mastic take to go off?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
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.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
What guarantee comes with the work?
Our one-year guarantee covers every job, sand mastic included.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours for a single window, longer for several. For a village or hamlet like Grove, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- 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.
Before we arrive
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Related advice
When to call us in Grove
Shallow joints are a common cause. Mastic that is too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Most people get in touch when they notice something like this:
- Modern sealant on a period surround
- Draughts and rain around sash boxes
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
Letting a property close to Sturry station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- How the colour is chosen
- Are they insured?
What affects the cost of sand mastic
You will get a clear quote before any work starts. It takes into account:
- Access and height
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- The size of the job
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email and we will talk you through it.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- Whether it’s a home or a business
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.