Kent · England
Sand Mastic in Daniel's Water
Sand mastic in Daniel's Water from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic round period door frames that has failed
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Ask the planning authority about consent for listed or conservation-area homes
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
- Don’t paint over the new mastic
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
How we handle sand mastic in Daniel's Water
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you are dealing with gaps where the frame meets the masonry and mastic dropping out of the joint, we can help, on brick reveals, stone surrounds and period & listed homes alike.
Mastic can only go onto a dry, clean joint, so window work in Daniel's Water is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Daniel's Water (TN26)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

DIY sealant or a professional job?
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.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Landlords, agents and businesses in Daniel's Water
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Different surfaces, different methods
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Frames and glazing around Daniel's Water
With historic houses such as Godinton House (about 2 miles north-east) nearby, there’s older building stock in the area around Daniel's Water as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Godinton House, about 2 miles north-east, is one of the historic houses in the wider area around Daniel's Water, and older homes nearby need a sealant that suits their walls.
Daniel's Water is about 3 miles west of Ashford, in Kent. Whether you are in the middle of Daniel's Water or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 922 towns and villages across Kent, from the larger towns to small villages. We also work in Crawley, around 43 miles away.
Work in TN26 works the same way as everywhere else we cover. Other places close to Daniel's Water include Fleeden (1 mile south), Chilmington Green (1 mile south-east), Great Chart (1 mile east), Godinton (2 miles north-east) and Hothfield (2 miles north). Further out, we also cover Maidstone (15 miles north-west), Ashford (3 miles east), Sittingbourne (14 miles north), Faversham (13 miles north), Hythe (13 miles east) and Davington (13 miles north).
Around Daniel's Water
Typical jobs here are in homes near Ashford Community Woodland, among other places. For rail, the closest station is Pluckley station, roughly 2.6 miles north-west of the centre. Nearby you’ll also find County Square (3.1 miles east) and Romden Castle (3.9 miles west). Open spaces near Daniel's Water include Orlestone Forest.
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to a full day, depending on how many windows. Somewhere like Daniel's Water needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- Clear the area around the work
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Related advice
When something else is needed
We will not take on work that won’t last, so these are the limits:
- Sashes that need overhauling
- Broken panes
- Planning or listed building consent (your local planning authority decides)
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Timber door frames
- Sash and case windows
- Tenement windows
- Brick reveals
- Stone surrounds
- Period & listed homes
Daniel's Water questions
Is Daniel's Water within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Pluckley station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Can you match the sealant colour?
Generally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before any work starts.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
Places near Daniel's Water
More services for Daniel's Water
Signs you need sand mastic in Daniel's Water
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber, and they normally need raking out.
The most common problems we see are:
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
- Mastic worn away on windows facing the weather
- Gaps where the frame meets the masonry
Letting a property close to Pluckley station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- How long the guarantee is
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
- What insurance they hold
