Kent · England
Densole Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Densole. Fully insured, ARBOMaster approved and guaranteed for a year.
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic worn away on windows facing the weather
Sand mastic in Densole
We work across Densole 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 are dealing with cracked mastic round a front door frame and window mastic to renew ahead of painting, we can help, on brick reveals, sash and case windows and tenement windows alike.
Around Densole, 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.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Densole (CT18)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Densole
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. Historic houses like Acrise Place (about 1.2 miles north-west) are a reminder that the area around Densole has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In the older streets around St Luke's, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Folkestone West station? Then any sash windows need sound mastic to keep draughts and rain out.
Densole is about 3 miles north of Folkestone, in Kent. Densole gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Kent, we cover 922 places, and Densole is one of them. We also work in Chelmsford, around 51 miles away.
Postcode districts we cover here for sand mastic: CT18. Sand mastic is available to properties on St John's Close, St John's Way and Canterbury Road and the roads around them. Other places close to Densole include Hawkinge (1 mile south), Swingfield Minnis (1 mile north), Old Hawkinge (2 miles south-east), Arpinge (2 miles south-west) and Selsted (2 miles north). Larger places within reach include Ashford (13 miles west), Canterbury (11 miles north), Dover (6 miles east), Folkestone (3 miles south), Deal (12 miles north-east) and Hythe (5 miles south-west).
Around Densole
The closest station to Densole is Folkestone West station, about 3.1 miles south. Other landmarks nearby include Elham Valley Countryside Centre And Railway Museum (2.7 miles south-west) and Folkestone Castle (2.1 miles south). Green spaces nearby include Cheriton Hill.
Towns and villages near Densole
What else we do in Densole
Signs you need sand mastic in Densole
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
The most common problems we see are:
- Crumbling sand mastic round a window
- Modern sealant on a period surround
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
Managing a site like Hawkinge Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- What the cure time is
Your questions about sand mastic in Densole
Is Densole within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Folkestone West station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first.
Which is right for my windows, sand mastic or modern sealant?
We’ll talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
Do you guarantee sand mastic work?
You get our 12-month guarantee to all our work.
What affects the quote in Densole
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- The amount of work
- The product the joint needs
- Any working-time requirements on site
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
What to tell us for a quote
To help us quote quickly, let us know:
- If someone has resealed it before
- Any access issues, like height or stairs
- The problem you’ve noticed
- The address or postcode of the job
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Leave it or put it right?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new mastic stays put. In a small place like Densole, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
Why book with us
- ARBOMaster approved applicator
- We’re fully insured
- Anti-fungal silicone where joints get wet
- Old sealant always removed completely
Take a look at our cost guide or what customers say.
How it works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours per window, depending on the condition of the joints. For a village or hamlet like Densole, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Let us know about parking restrictions
- Clear items away from the joints we’re working on
- Keep pets and children clear of the area while we work
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or drop us an email.
Read more
What we can’t put right
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Densole
- Brick reveals
- Tenement windows
- Sash and case windows
- Period & listed homes
- Timber door frames
- Stone surrounds
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Period and listed homes
A traditional finish suits a period property.
DIY versus a professional finish
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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.