Kent · England
Sand mastic for sash & case windows in Tilmanstone, Kent
Window and door surrounds in Tilmanstone need attention? We remove the old material, prepare the joints and seal them properly.
- Mastic round period door frames that has failed
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Sand mastic in Tilmanstone
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you’re dealing with failed mastic on an exposed elevation and draughty sash windows at the surround, we can put it right, whatever the surface.
Somewhere as small as Tilmanstone, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
All our work comes with a one-year guarantee.
- Place
- Tilmanstone (CT14)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we’re called out for in Tilmanstone
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber and we normally remove them.
Keep an eye out for these signs:
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
If you let a flat or house near Shepherds Well station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- What the cure time is
- What guarantee comes with the work
- How hidden problems are handled
- Are they insured?
How the job changes by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Tilmanstone questions
Is Tilmanstone within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do sand mastic in Tilmanstone?
Yes, Tilmanstone is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Sand mastic in Tilmanstone: local notes
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. With historic houses such as Goodnestone Park (about 3.5 miles north-west) nearby, there’s older building stock in the area around Tilmanstone as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to Church of St Andrew include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Tilmanstone is about 4 miles west of Deal, in Kent. We carry out sand mastic for homeowners, landlords and businesses in Tilmanstone, as part of our work across Kent. Tilmanstone is one of 922 towns and villages in Kent where we work. You can also see our page for Chelmsford, roughly 50 miles from Tilmanstone.
Our applicators cover all of the CT14 postcode area for sand mastic and the streets around it. Whether your property is on Upper Street, Vicarage Lane and Chapel Road or a nearby road, we can help. Other places close to Tilmanstone include Elvington (2 miles west), Heronden (2 miles north), Chillenden (2 miles north-west), Barfrestone (2 miles west) and Hammill Park (3 miles north). Further out, we also cover Canterbury (10 miles north-west), Margate (12 miles north), Dover (5 miles south), Folkestone (11 miles south-west), Ramsgate (10 miles north-east) and Broadstairs (12 miles north-east).
Around Tilmanstone
The closest station to Tilmanstone is Shepherds Well station, about 3.3 miles south-west. Well-known places in the area include Deal Castle (4.7 miles east) and Buckland Hospital (5.7 miles south).
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Tilmanstone, 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 look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
Ask for a quote
If you’re in Tilmanstone and need sand mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Advice
What affects the quote in Tilmanstone
We quote each job individually. This is what makes a difference:
- How much there is to do
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
Combining jobs into one visit is generally more efficient than separate visits. We will send you a clear quote for the lot.
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:
- Whether it has been sealed before
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Also near Tilmanstone
What else we do in Tilmanstone
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Keep sills and gutters clear so water drains away
- Ask the planning authority about consent for listed or conservation-area homes
- Sort the mastic before the decorators arrive
- Don’t paint over the new mastic
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
For landlords and businesses
If you manage several properties in or around Tilmanstone, several properties can be quoted together. Just tell us the addresses and what each one needs.
We also work for property managers and facilities teams in Tilmanstone and across Kent. We can quote a run of properties together, and we are fully insured.