Kent · England
Sand Mastic in Dargate
Sand mastic across Dargate and nearby, with old sealant always removed completely.
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
- Failed mastic on an exposed elevation
When something else is needed
We won’t take on work that will not last, so these are the limits:
- Sashes that rattle, stick or won’t open
- Decisions on consent for listed homes
- Timber that has rotted
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Surfaces we seal
- Brick reveals
- Timber door frames
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Tenement windows
Sand mastic in Dargate, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. We work on stone surrounds, brick reveals and sash and case windows, and people most often call us about modern sealant on a period surround and mastic worn away on windows facing the weather.
Somewhere as small as Dargate, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Our work is backed for twelve months.
- Location
- Dargate (ME13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need sand mastic in Dargate
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber, and they generally need raking out.
Look out for these signs:
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
If you live in an older home near Church of St Michael, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before you book
- What insurance they hold
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
What happens if it’s left?
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new work lasts. Around Dargate, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
What you get with us
- Domestic, commercial and hotel work
- ARBOMaster approved applicator
- 180+ five-star Google reviews
- Full insurance on every job
Take a look at what affects the cost or customer reviews.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Check with your local planning authority if your home is listed
- Don’t run silicone over sand mastic
- Get any rot dealt with first
- Make sure water runs off the sill
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What affects the cost of sand mastic
Call for a quick quote. The main things that affect it are:
- Any mould that needs treating
- The type of sealant required
- How easy the joints are to reach
- The old material and how stubborn it is
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Photos by email, if that is easy
- Any access issues, like height or stairs
- The rough size of the job
- Whether it’s a home or a business
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
Also near Dargate
What else we do in Dargate
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Dargate, 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 look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or drop us an email.
Read more
Frames and glazing around Dargate
Dargate is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Hernhill Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Selling station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Dargate is about 4 miles south-west of Whitstable, in Kent. Across the ME13 area, our applicators can take on sand mastic. Our Kent coverage runs to 922 places, Dargate among them. We also work in Chelmsford, around 36 miles away.
Here we cover the ME13 postcode area for sand mastic. If you need sand mastic at a property on Butler's Hill and Plumpudding Lane or a nearby road, we can help. We also cover the places around Dargate: Hernhill (1 mile south-west), Waterham (1 mile north), Highstreet (1 mile north-east), Slutshole (1 mile south-west) and Staplestreet (1 mile south-west). Larger places within reach include Ashford (13 miles south), Canterbury (5 miles south-east), Sittingbourne (11 miles west), Whitstable (4 miles north-east), Faversham (4 miles west) and Herne Bay (8 miles north-east).
Around Dargate
We work in homes and buildings around Red Lion pub and Mount Ephraim Gardens and the streets around them. For rail, the closest station is Selling station, about 3 miles south-west. Other landmarks nearby include Whitstable and Tankerton Hospital (4.5 miles north-east) and Tankerton Castle (4.2 miles north-east). The countryside around Dargate includes Blean Woods RSPB Reserve.
Dargate questions
Does the coastal weather in Dargate affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are usually the first to need attention.
I let a flat near Selling station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Are you insured?
Yes. Mr Mastic is fully insured.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or send us an email.
Do you work in Dargate?
Yes. We’re based in Crawley and work across South East England, London and Scotland, and that includes Dargate.
How much does sand mastic cost in Dargate?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.