Kent · England
Window Mastic in Tonge Corner
Window mastic across Tonge Corner and nearby, with old sealant always removed completely and a 12-month guarantee.
- Black, perished sealant on frames
- Cracked sealant at the sill ends
- A bead that does not match the frame
Window mastic in Tonge Corner
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. We work on uPVC windows, window sills and patio & French doors, and the jobs we see most are sealant in the wrong colour for the frame and black, perished sealant on frames.
Around Tonge Corner, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work comes with a 12-month guarantee, wherever you are in Kent.
- Place
- Tonge Corner (ME9)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
Nearby places to Tonge Corner
What else we do in Tonge Corner
Do you need window mastic in Tonge Corner?
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Any of these means the joints need attention:
- A bead that doesn’t match the frame
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
- Hard, cracked sealant around windows
For landlords with property near Teynham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What to look for in a quote
- Who turns up on the day
- What insurance they hold
- What happens if the job turns out different
- What the quote includes, VAT included or not
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Check the mastic once a year
- Keep paint off silicone joints
- Keep solvents and bleach off the sealant
- Keep timber frames painted
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
What we can’t put right
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Draughts through the window seals rather than the frame
- Condensation trapped between the panes
- Damp problems in the wall away from the window
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Aluminium frames
- uPVC windows
- Composite doors
- Window sills
- Patio & French doors
- Timber windows & doors
Why it’s worth doing now in Tonge Corner
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Tonge Corner, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Homes, businesses and hotels
- You choose the colour before work begins
- We’re fully insured
Take a look at our cost guide and what customers say.
What we do, step by step
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Tonge Corner, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Advice
Tonge Corner questions
Can you help a landlord with a rental near Teynham station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Does the coastal weather in Tonge Corner affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us.
Where are you based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
How many windows can you do in a day?
The work takes a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.
Quotes for window mastic in Tonge Corner
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- When we can work, for business premises
- The product the joint needs
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Asking for a quote
To help us quote quickly, please include:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Where the property is
Want a quote for window mastic? Please phone 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before any work starts.
Window mastic in Tonge Corner: local notes
Tonge Corner is close to 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Giles include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Lansdowne Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Tonge Corner is about 2 miles east of Sittingbourne, in Kent. Across the ME9 area, our applicators can take on window mastic. Across Kent, we cover 922 places, and Tonge Corner is one of them. Our Chelmsford page covers work nearby, about 30 miles away.
Jobs for window mastic in ME9 is quoted and booked the same way as anywhere else. Nearby, we also carry out window mastic in Tonge (1 mile north), Radfield (1 mile south), Murston (1 mile west), Milton Regis (1 mile west) and Rodmersham (2 miles south). Larger places within reach include Maidstone (12 miles south-west), Ashford (15 miles south), Canterbury (14 miles east), Whitstable (11 miles east), Faversham (5 miles south-east) and Minster (5 miles north).
Landmarks near Tonge Corner
In Tonge Corner, that means homes and buildings near Sittingbourne Community College and Milton Creek Country Park. For rail, the closest station is Teynham station, roughly 1.5 miles south-east. Other landmarks nearby include Dolphin Sailing Barge Museum (1.4 miles west) and Bayford Court (1.4 miles west).
