Kent · England
Sand mastic for sash & case windows in Charlton-in-Dover, Kent
Problem with your window and door surrounds in Charlton-in-Dover? We cut out the old, prepare the joints and apply the right sealant.
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
- Open joints round the window box
Sand mastic in Charlton-in-Dover, done properly
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Typical jobs include draughts and rain around sash boxes and silicone on a period window that looks wrong, on sash and case windows, tenement windows and timber door frames.
Around Charlton-in-Dover, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.
Big or small, it’s backed by our one-year guarantee.
- Place
- Charlton-in-Dover (CT16, CT17, CT15)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and finishes neatly against the masonry. In an older home around Charlton-in-Dover, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start.
What you get with us
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- Every job guaranteed for a year
- Domestic, commercial and hotel work
Nearby places to Charlton-in-Dover
Also in Charlton-in-Dover
Looking after it afterwards
After the cure time, these simple habits help:
- Renew mastic before redecorating the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Avoid heavy scraping on the mastic joint
- Ask a joiner to look at soft timber first
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
Common questions in Charlton-in-Dover
Can you help a landlord with a rental near Dover Priory station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Is Charlton-in-Dover within the area you cover?
Yes. Charlton-in-Dover is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Are you insured?
Yes. Full insurance covers our work.
Can you quote for more than one area?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
How it works
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the work takes a few hours for a single window, longer for several in most cases. Parking around Charlton-in-Dover 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.
- 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.
Getting ready for the visit
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
What the job involves on each surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
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, then guaranteed for a year.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Charlton-in-Dover homes and the weather
Charlton-in-Dover is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Dover Priory station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Charlton Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Charlton-in-Dover is about 1 mile south-east of Dover, in Kent. Our applicators cover sand mastic for homeowners, landlords and businesses in Charlton-in-Dover and the surrounding area. Across Kent, we cover 922 places, and Charlton-in-Dover is one of them. You can also see our page for Chelmsford, about 55 miles away.
Every address in CT16, CT17 and CT15 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Odo Road, Eric Road and Lorne Road or anywhere close by, we can help. Main roads around Charlton-in-Dover include the A256. We also cover the places around Charlton-in-Dover: Tower Hamlets (1 mile south-west), Guston (2 miles north-east), Church Whitfield (2 miles north), East Langdon (3 miles north-east) and West Cliffe (3 miles north-east). Larger places within reach include Canterbury (14 miles north-west), Folkestone (7 miles south-west), Ramsgate (15 miles north), Deal (7 miles north-east), Hythe (11 miles south-west) and Walmer (6 miles north-east).
Local landmarks in Charlton-in-Dover
Typical jobs here are in homes near Dover Grammar School for Girls, St Edmund's Catholic School and The Red Lion pub and the streets around them. The nearest railway station is Dover Priory station, about 0.6 miles south of the centre. Nearby you will also find Dover Castle (0.9 miles south-east) and Old Town Gaol (under half a mile south). For a walk, there’s Dover Western Heights.
What sealant work can’t fix
It helps to know what we can’t do too:
- Crumbling stone or brickwork round the window
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Tenement windows
- Timber door frames