Kent · England
Shepway Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Shepway and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Draughts and rain around sash boxes
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
Your questions about sand mastic in Shepway
Can you help a landlord with a rental near Maidstone West station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Do you cover smaller places like Shepway?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
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.
How long does sand mastic take to harden?
Not right away. It skins first and hardens fully later, and we will tell you what to expect.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Is it possible to take out silicone and use sand mastic instead?
In most cases. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
About our sand mastic in Shepway
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you have gaps where the frame meets the masonry and silicone on a period window that looks wrong, we can help, whatever the surface.
In a smaller place like Shepway, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Shepway (ME15)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Take care around the mastic when scraping paint
- Ask a joiner to look at soft timber first
- Keep sills and gutters clear so water drains away
- Sort the mastic before the decorators arrive
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
What we do, step by step
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to a full day, depending on how many windows. A visit to Shepway is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
Get a quote
We quote each job on its own. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
Landlords, agents and businesses in Shepway
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Sand mastic in Shepway: local notes
Historic houses like Stoneacre (about 1.4 miles east) are a reminder that the area around Shepway has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
Schools such as Greenfields Community Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Maidstone West station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Shepway is about 1 mile south-east of Maidstone, in Kent. From the centre of Shepway to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 922 places in Kent are on our list, large and small. London is on our list too, about 32 miles from Shepway.
Our applicators cover all of ME15 for sand mastic. Whether your property is on Derby Road, Devon Road and Surrey Road or a nearby road, our applicators can take on the job. If you’re just outside Shepway, we cover Willington (1 mile east), Park Wood (1 mile south), Otham (1 mile south-east), Maidstone (1 mile north-west) and Weavering (1 mile north-east). We also work in nearby towns such as Sittingbourne (10 miles north-east), Royal Tunbridge Wells (15 miles south-west), Gravesend (14 miles north-west), Tonbridge (12 miles west), Faversham (15 miles east) and Northfleet (15 miles north-west).
Near you in Shepway
We work in homes and buildings around Mote Park, The Wheatsheaf pub and Senacre Technology College, among other places. The nearest railway station is Maidstone West station, roughly 1.7 miles north-west of the centre. A little further out are KIMS hospital (2.2 miles north) and Allington Castle (3.1 miles north-west). Not far away are Detling Hill.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Masonry that needs repairing
- Whether work needs listed building consent
- Sashes that need overhauling
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
What we seal
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Signs you need sand mastic in Shepway
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
It’s worth asking for a quote if you see:
- Tired mastic found when preparing windows for paint
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
If you live in an older home near St Martin's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- When the joint can take water or movement
- What guarantee comes with the work
- How much experience the applicator has
- What product goes in the joint
Towns and villages near Shepway
What else we do in Shepway
Why it’s worth doing now in Shepway
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. In a smaller place like Shepway, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- A 12-month guarantee on all work
- Tidy, careful work
- More than 20 years in sealant work
- Old sealant always removed completely