Kent · England
Window & door mastic in Charlton-in-Dover, Kent
Window mastic across Charlton-in-Dover and nearby, with every bit of old sealant taken out first.
- Mastic that’s falling out in pieces
- Damp patches on the reveal after heavy rain
- Gaps between the frame and the inside reveal
How we handle window mastic in Charlton-in-Dover
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on aluminium frames, window sills and patio & French doors, and the jobs we see most are black, perished sealant on frames and cracked or shrunken mastic around the frame.
Many houses in smaller places like Charlton-in-Dover have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Charlton-in-Dover (CT16, CT17, CT15)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep jet washers away from the mastic
- Make sure the drainage slots aren’t blocked
- Look round the frames every year or so
- Wipe condensation off the frames
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Leaks usually show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Signs you need window mastic in Charlton-in-Dover
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
The most common problems we see are:
- Whistling draughts around closed windows
- A bead that does not match the frame
- Untidy mastic left by window fitters
- Old mastic that has gone black or come away
Homes close to Church of St Peter and St Paul include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Comparing quotes
- How the colour is chosen
- How long the guarantee is
- How long to leave it before use
- What happens if the job turns out different
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- A frame that has rotted at the joint
- Broken hinges, locks or handles
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Charlton-in-Dover
- Patio & French doors
- Composite doors
- Timber windows & doors
- Aluminium frames
- Window sills
- uPVC windows
DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Surface by surface
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Charlton-in-Dover questions
Will you come out to Charlton-in-Dover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Dover Priory station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
How many windows can you do in a day?
The work takes anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
What should I tell you?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Towns and villages near Charlton-in-Dover
What else we do in Charlton-in-Dover
Windows and doors in Charlton-in-Dover
Charlton-in-Dover is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Charlton Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Dover Priory station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Charlton-in-Dover is about 1 mile south-east of Dover, in Kent. We provide window mastic to householders, landlords and businesses in Charlton-in-Dover and the surrounding area. Our Kent coverage runs to 922 places, Charlton-in-Dover among them. Chelmsford is on our list too, about 55 miles from Charlton-in-Dover.
All of CT16, CT17 and CT15 is within our area for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Odo Road, Eric Road and Lorne Road or anywhere close by, our applicators can take on the job. Charlton-in-Dover is on the A256, so it’s easy for us to get to. Other places close to Charlton-in-Dover include 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).
What’s near Charlton-in-Dover
We work in homes and buildings around Dover Grammar School for Girls, St Edmund's Catholic School and The Red Lion pub, among other places. Charlton-in-Dover’s nearest station is Dover Priory station, about 0.6 miles south of the centre. Nearby you’ll also find Dover Castle (0.9 miles south-east) and Old Town Gaol (within half a mile south). Open spaces near Charlton-in-Dover include Dover Western Heights.
What happens if it’s left?
Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we will tell you. Homes in smaller places like Charlton-in-Dover can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Why choose Mr Mastic in Charlton-in-Dover
- Anti-fungal silicone where joints get wet
- 180+ five-star Google reviews
- Colour agreed with you before any work starts
- Fully insured
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It usually takes a few hours for a handful of frames, longer for a whole house. A visit to Charlton-in-Dover 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.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
How to prepare
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
- Try not to wet indoor joints just before the visit
Get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.