Kent · England
Stelling Minnis Sand Mastic
Specialist sand mastic for Stelling Minnis: careful preparation, the right product and tidy work. Call for a quick quote.
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
Common questions in Stelling Minnis
Can you do sand mastic in Stelling Minnis?
Yes, Stelling Minnis is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Is there a guarantee on sand mastic in Stelling Minnis?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like, but they decide.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Sand mastic in Stelling Minnis, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on sash and case windows, stone surrounds and timber door frames, and common reasons people get in touch are silicone on a period window that looks wrong and open joints round the window box.
Outdoor sealant needs dry, clean surfaces, so work on frames around Stelling Minnis is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Each job carries a 12-month guarantee, large or small.
- Location
- Stelling Minnis (CT4)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. In a small place like Stelling Minnis, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
- Tell us about any water getting in
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Related advice
Stelling Minnis homes and the weather
Historic houses like Acrise Place (about 4.4 miles south-east) are a reminder that the area around Stelling Minnis has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Stelling Minnis Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Stelling Minnis is about 6 miles south of Canterbury, in Kent. Stelling Minnis gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Stelling Minnis is one of 922 places in Kent we cover for sand mastic. You can also see our page for Chelmsford, about 46 miles away.
All of CT4 is within our area for sand mastic, from the main roads to the quietest streets. Streets in the area include Bossingham Road, Ponycart Lane and Minnis Lane, all of which we cover. If you’re just outside Stelling Minnis, we cover Bossingham (1 mile north-east), Waltham (2 miles west), Rhodes Minnis (3 miles south), Stowting Common (3 miles south-west) and Ottinge (3 miles south). Within a short drive, we also cover Ashford (9 miles west), Canterbury (6 miles north), Dover (11 miles east), Folkestone (8 miles south-east), Whitstable (12 miles north) and Deal (14 miles east).
What’s near Stelling Minnis
In Stelling Minnis, that means homes and buildings near Spong Wood and the streets around them. Other landmarks nearby include Kent and Canterbury Hospital (5.6 miles north).
Different surfaces, different methods
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- Which sealant suits the joint
- Working hours on commercial sites
- The old material and how stubborn it is
- How many areas need sealing
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins.
Asking for a quote
To make quoting easier, please include:
- Whether it has been sealed before
- Roughly how big the job is
- Pictures of the joints, sent by email
- How we’d reach the joints
If you’re in Stelling Minnis and need sand mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Leave the new mastic unpainted
- Go gently near the mastic when preparing windows
- Get any rot dealt with first
- Do not run silicone over sand mastic
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
What happens if it’s left?
If you are redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Stelling Minnis, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Full insurance on every job
- Anti-fungal sanitary silicone in wet areas
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
Take a look at what affects the cost and our reviews.
When it isn’t the sealant
Before booking, it’s worth knowing the limits too:
- Masonry that needs repairing
- Timber that has rotted
- Whether work needs listed building consent
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Tenement windows
- Period & listed homes
- Timber door frames
- Stone surrounds
- Sash and case windows
- Brick reveals
Towns and villages near Stelling Minnis
Also in Stelling Minnis
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.