Kent · England
Sand mastic for sash & case windows in Wichling, Kent
Sand mastic in Wichling from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Draughty sash windows at the surround
Sand mastic in Wichling, done properly
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We work on timber door frames, sash and case windows and period & listed homes, and people most often call us about gaps between timber frames and stone or brick and mastic dropping out of the joint.
Somewhere as small as Wichling, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Wichling (ME9)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Wichling homes and the weather
With historic houses such as Belmont House and Gardens (about 4.1 miles east) nearby, there’s older building stock in the area around Wichling as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Lenham station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Wichling is about 5 miles south of Sittingbourne, in Kent. Across the ME9 area, we cover sand mastic for homes and businesses. Wichling is one of 922 towns and villages in Kent where we work. Our Chelmsford page covers work nearby, about 34 miles away.
All of ME9 is within our area for sand mastic, from the main roads to the quietest streets. If you are just outside Wichling, we cover Doddington (1 mile north-east), Hollybushes (1 mile north-west), Bluetown (1 mile north), Payden Street (1 mile south) and West Street (2 miles south-west). Larger places within reach include Maidstone (10 miles west), Ashford (10 miles south-east), Canterbury (14 miles east), Sittingbourne (5 miles north), Whitstable (13 miles north-east) and Faversham (7 miles north-east).
Around Wichling
We work in homes and buildings around Doddington Place Gardens. The closest station to Wichling is Lenham station, roughly 3.2 miles south-west. Other landmarks nearby include Newnham Castle (2.4 miles north-east).
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, 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 as small as Wichling, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
What affects the quote in Wichling
Every job gets its own quote. These are the things that affect it:
- The number of rooms or windows
- The number and length of the joints
- Working hours on commercial sites
- Access and height
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Asking for a quote
To help us quote quickly, please include:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- The type of property
- How we’d reach the joints
Need a quote? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Common questions in Wichling
Will you come out to Wichling?
Yes. Wichling is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Lenham station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Can I choose the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Wichling and across Kent. We can quote a run of properties together, and we are fully insured.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
What happens if it’s left?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like Wichling, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- An ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
Take a look at our cost guide and customer reviews.
When to call us in Wichling
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
Any of these means the joints need attention:
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
- Mastic dropping out of the joint
In the older streets around Church of St Margaret, the joint between an old wall and a newer frame is usually the first place rain gets in.
What to look for in a quote
- How long to leave it before use
- How long the guarantee is
- What happens if they find a problem under the old sealant
- What insurance they hold
Nearby places to Wichling
More services for Wichling
Can I do it myself?
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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
How the job changes by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
