Kent · England
Window & door mastic in Dunkirk, Kent
Window mastic for Dunkirk, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic that has split away from the wall
- White mastic on grey or black frames
- Rushed sealant from a window installation
About our window mastic in Dunkirk
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we’ll say so. We work on aluminium frames, uPVC windows and timber windows & doors, and the jobs we see most are a bead that doesn’t match the frame and damp patches on the reveal after heavy rain.
Outdoor sealant needs dry, clean surfaces, so work on frames around Dunkirk is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Our work is backed for twelve months.
- Place
- Dunkirk (ME13)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Window mastic in Dunkirk: local notes
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.
Homes close to Christ Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Dunkirk is about 4 miles south-east of Faversham, in Kent. Whether you are in the middle of Dunkirk or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Dunkirk is one of 922 towns and villages in Kent where we work. We also work in Chelmsford, about 37 miles from Dunkirk.
Postcode districts we cover here for window mastic: ME13. We cover properties on London Road and Courtenay Road and the roads around them. Close by, we work in Boughton under Blean (1 mile west), Winterbourne (1 mile south-west), Hickmans Green (1 mile west), Oversland (1 mile south-west) and South Street (2 miles south-west). Larger places within reach include Ashford (12 miles south-west), Canterbury (5 miles east), Sittingbourne (11 miles west), Whitstable (5 miles north-east), Faversham (4 miles north-west) and Herne Bay (9 miles north-east).
What’s near Dunkirk
In Dunkirk, that means homes and buildings near The Red Lion pub and Mount Ephraim Gardens and the streets around them. Dunkirk’s nearest station is Selling station, roughly 1.9 miles south-west of the centre. Other landmarks nearby include Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (4.4 miles east). Not far away are Blean Woods RSPB Reserve.
DIY sealant or a professional job?
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.
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.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from an hour or two to a full day, depending on how many frames there are and we leave things clean and tidy. Somewhere as small as Dunkirk, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
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Landlords, agents and businesses in Dunkirk
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
What we are called out for in Dunkirk
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
It’s worth asking for a quote if you see:
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
- Mastic that’s falling out in pieces
- Rain getting in at the frame or under the sill
If you let a flat or house near Selling station, renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Is VAT in the price?
- Who turns up on the day
- What preparation is included
- Whether they seal over old material or remove it
Looking after it afterwards
After the cure time, these simple habits help:
- Keep timber frames painted
- Don’t use solvent cleaners on the joint
- Wipe condensation off the frames
- Use gentle cleaners on frames and sealant
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or send us an email.
Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
FAQs for Dunkirk
Can you help a landlord with a rental near Selling station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Do you cover smaller places like Dunkirk?
Yes, Dunkirk is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Are you insured?
Yes. Full insurance covers our work.
When it isn’t the sealant
Before you book, it’s worth knowing the limits too:
- Worn gaskets, brush seals or a door that has dropped
- Penetrating damp from a failed cavity tray or render
- Soft or decayed wood in the frame
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
Nearby places to Dunkirk
More services for Dunkirk
What affects the quote in Dunkirk
We quote each job individually. This is what makes a difference:
- Which sealant suits the joint
- Access and height
- The old material and how stubborn it is
- The number of rooms or windows
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- Roughly how big the job is
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.