Kent · England
Sand Mastic in Shalmsford Street
Sand mastic for Shalmsford Street and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Draughty sash windows at the surround
- Old cement repairs round a window that have failed
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Shalmsford Street, done properly
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you have modern sealant on a period surround and mastic dropping out of the joint, we can put it right, whatever the surface.
Houses in smaller places like Shalmsford Street can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
Every job is covered by our one-year guarantee, wherever you are in Kent.
- Location
- Shalmsford Street (CT4)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
Stone surrounds
The stone is treated with care when the old mastic comes out.
Frames and glazing around Shalmsford Street
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.
Rented homes near Chartham station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Chartham Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Shalmsford Street is about 3 miles south-west of Canterbury, in Kent. Whether you’re in the middle of Shalmsford Street or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Kent, we cover 922 places, Shalmsford Street among them. Our Chelmsford page covers work nearby, about 41 miles away.
We work across CT4 for sand mastic and the streets around it. If you need sand mastic at a property on Old Church Road, Pomfret Road and Summer Piece Grove or anywhere close by, we can help. Close by, we work in Chartham (1 mile north), Mystole (1 mile west), Garlinge Green (1 mile south), Chartham Hatch (1 mile north) and Thanington (2 miles north-east). Further out, we also cover Ashford (10 miles south-west), Canterbury (3 miles north-east), Dover (14 miles south-east), Sittingbourne (14 miles north-west), Folkestone (13 miles south-east) and Whitstable (7 miles north).
Near you in Shalmsford Street
Locally, jobs take us to homes and businesses close to The Artichoke Inn and Broadham Down. For rail, the closest station is Chartham station, roughly 0.5 miles north. Well-known places in the area include Chilham Castle (2.6 miles west) and Whitefriars Shopping Centre (3.3 miles north-east). The countryside around Shalmsford Street includes Blean Woods RSPB Reserve.
Nearby places to Shalmsford Street
What else we do in Shalmsford Street
Why deal with it now?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. In an older home around Shalmsford Street, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
- Domestic, commercial and hotel work
- Every job guaranteed for a year
Read our cost guide or our reviews.
What happens on the day
When we arrive, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work generally takes a few hours for a single window, longer for several. Parking around Shalmsford Street is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we’re working on
Ask for a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Related advice
Shalmsford Street: your questions answered
Is Shalmsford Street in your area for sand mastic?
Yes, Shalmsford Street is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Will you come out to Shalmsford Street?
Yes, Shalmsford Street is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant.
What should I tell you?
A short description and the location, with pictures by email if possible. If we need more, we will ask.
Where are you based?
Our base is Crawley. We work across South East England, London and Scotland.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How we quote for sand mastic
For a quick quote, just ask. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- Any mould that needs treating
- Working hours on commercial sites
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
When you call or email, these details help:
- What’s wrong with the joints now
- Roughly how big the job is
- Whether it has been sealed before
- The type of property
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.
How to look after the new joints
So the new joints stay in good condition:
- Ask us before painting near the mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Make sure water runs off the sill
- Check the mastic when you check the paintwork
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
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.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Landlords, agents and businesses in Shalmsford Street
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams. We can quote a run of properties together.