Kent · England
Sand mastic for sash & case windows in Westmarsh, Kent
Our applicators work in Westmarsh on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Patchy fillers round a sash window
- Mastic worn away on windows facing the weather
- Open joints round the window box
About our sand mastic in Westmarsh
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We work on period & listed homes, stone surrounds and tenement windows, and people most often call us about cement or filler used on old window joints that has cracked and gaps round a timber door in stone or brick.
In a village or hamlet like Westmarsh, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Westmarsh (CT3)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for sand mastic in Westmarsh
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- The amount of work
- Whether there’s mould to deal with
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
What to tell us when you ask for a quote:
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
- The type of property
- Any previous sealing or DIY work
Want a quote for sand mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.
Landlords, agents and businesses in Westmarsh
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Letting agents and landlords in Westmarsh can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
What happens on the day
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. In a small place like Westmarsh, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- 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.
How to prepare
- Tell us if parking is tricky
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.
Advice
When to call us in Westmarsh
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Signs it’s time to call us include:
- Old cement repairs round a window that have failed
- Gaps round a timber door in stone or brick
- Gaps where the frame meets the masonry
- Window mastic to renew ahead of painting
Letting a property close to Minster station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- Whether you can choose the colour
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- Whether they’re fully insured
Westmarsh questions
Is Westmarsh within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Minster station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Can old silicone round a sash window be swapped for sand mastic?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What happens if it’s left?
Filling over old, loose mastic does not last. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Westmarsh can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and send you a clear quote before we start.
Why us?
- Homes, businesses and hotels
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
Take a look at what affects the cost and customer reviews.
How to look after the new joints
After the cure time, these simple habits help:
- Have rotten timber repaired before new mastic goes in
- Look over the window mastic once a year
- Sort the mastic before the decorators arrive
- Find out about consent before window work on a listed home
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Cracked or broken glass
- Damaged stone surrounds
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Period & listed homes
- Brick reveals
- Timber door frames
- Stone surrounds
- Tenement windows
- Sash and case windows
Nearby places to Westmarsh
Also in Westmarsh
Frames and glazing around Westmarsh
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Goodnestone Park (about 4.6 miles south-west) nearby, there’s older building stock in the area around Westmarsh as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Goodnestone Park, about 4.6 miles south-west, is one of the historic houses in the wider area around Westmarsh, and older homes nearby need a sealant that suits their walls.
Westmarsh is about 7 miles west of Ramsgate, in Kent. We provide sand mastic to homes and businesses in Westmarsh and the surrounding area. Our Kent coverage runs to 922 places, Westmarsh among them. Our Chelmsford page covers work nearby.
All of CT3 is within our area for sand mastic. If you’re just outside Westmarsh, we cover Ware (1 mile south), East Stourmouth (1 mile north-west), West Stourmouth (2 miles north-west), Preston (2 miles west) and Monkton (2 miles north). Larger places within reach include Canterbury (8 miles west), Margate (7 miles north-east), Dover (12 miles south), Ramsgate (7 miles east), Broadstairs (8 miles north-east) and Whitstable (11 miles west).
Near you in Westmarsh
Around Westmarsh, our work takes us to homes and buildings near The Way Out Inn, among other places. For rail, the closest station is Minster station, roughly 2.6 miles north-east of the centre. A little further out are White Mill (3 miles south-east). The countryside around Westmarsh includes Monk's Wall nature reserve.