Kent · England
Sand mastic for sash & case windows in North Street, Kent
Sand mastic for North Street and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Crumbling sand mastic round a window
- Old cement repairs round a window that have failed
- Wind and rain getting in round a sash window
Do you need sand mastic in North Street?
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
The most common problems we see are:
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
- Wind and rain getting in round a sash window
For landlords with property near Faversham station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- What the cure time is
- What happens if the job turns out different
- Who turns up on the day
- Whether VAT is included
About our sand mastic in North Street
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Common call-outs are for gaps round a timber door in stone or brick and silicone on a period window that looks wrong, on timber door frames, brick reveals and tenement windows.
Homes in small places like North Street often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- North Street (ME13)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Common questions in North Street
I let a flat near Faversham station. Can you help?
Yes. We work for landlords and agents as well as homeowners. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do sand mastic in North Street?
Yes, North Street is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Which is right for my windows, sand mastic or modern sealant?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
What guarantee comes with the work?
There’s a 12-month guarantee on every job, sand mastic included.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
North Street homes and the weather
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Belmont House and Gardens (about 2 miles south-west) are a reminder that the area around North Street 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.
Homes close to Church of St James 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 Sheldwich Primary School, its window and door frames need their mastic kept sound, just like a home’s.
North Street is about 2 miles south of Faversham, in Kent. From the centre of North Street to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 922 places across Kent. We also work in Chelmsford, about 36 miles from North Street.
Jobs for sand mastic in ME13 is quoted and booked the same way as anywhere else. We also cover Sheldwich (1 mile south), Sheldwich Lees (1 mile south), Painter's Forstal (1 mile north-west), Badlesmere (2 miles south) and Throwley (2 miles south-west). We also work in nearby towns such as Ashford (10 miles south), Canterbury (8 miles east), Sittingbourne (8 miles north-west), Whitstable (8 miles north-east), Herne Bay (12 miles north-east) and Minster (10 miles north).
Local landmarks in North Street
Locally, jobs take us to homes and businesses close to The Abbey School. The nearest railway station is Faversham station, about 1.8 miles north of the centre. Other landmarks nearby include Newnham Castle (3.7 miles west).
What we do, step by step
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a single window, longer for several. For a village or hamlet like North Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
Get a quote
If you are in North Street and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
When it isn’t the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- Planning or listed building consent (your local planning authority decides)
- Sash cords, weights and draught-proofing of the sashes
- Broken panes
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Tenement windows
- Timber door frames
- Sash and case windows
- Brick reveals
- Stone surrounds
- Period & listed homes
Why deal with it now?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. In a small place like North Street, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in North Street
- Sanitary silicone with an anti-fungal additive in wet areas
- More than 20 years in sealant work
- Experience in homes, commercial sites and hotels
- Neat joints and a tidy finish
Take a look at what affects the cost and our reviews.
Nearby places to North Street
More services for North Street
Landlord and commercial work in North Street
If you manage several properties in or around North Street, several properties can go on one quote. Send us the addresses and the work at each.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
How the job changes by surface
Stone surrounds
Stone openings are rarely perfectly straight, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.