Kent · England
Window & door mastic in Dungeness, Kent
Mastic around window and door frames, sills and patio doors for homes and businesses in Dungeness and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that is falling out in pieces
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
About our window mastic in Dungeness
A window frame and the wall around it expand and shrink at different rates. 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. Common call-outs are for gaps between the frame and the inside reveal and water coming in at the bottom corners of a door, on window sills, composite doors and uPVC windows.
In a village or hamlet like Dungeness, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Dungeness (TN29)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Dungeness
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- How easy the joints are to reach
- Mould in or behind the old joints
- Working hours on commercial sites
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it has been sealed before
- The rough size of the job
- The address or postcode of the job
- Access, such as stairs, a lift or height
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Questions from Dungeness
Is window mastic in a coastal place like Dungeness any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Dungeness in your area for window mastic?
Yes, Dungeness is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
What do you need from me for a quote?
Tell us what needs doing and where, plus pictures if you have them. We’ll ask anything else we need to know.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How much does window mastic cost in Dungeness?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
I’m a tenant. Can you help?
Of course. Check with your landlord; we can send the quote to them too.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Nearby places to Dungeness
More services for Dungeness
Frames and glazing around Dungeness
Dungeness is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For jobs in and around Dungeness, choosing the right material for each joint is as important as a tidy finish.
Dungeness is about 11 miles south-west of Hythe, in Kent. Our applicators cover window mastic for homeowners, landlords and businesses in Dungeness and the surrounding area. 922 places in Kent are on our list, large and small. For nearby work, see our Brighton page.
All of TN29 is within our area for window mastic. Local streets include Dungeness Road and Reactoe One Road. We also cover the places around Dungeness: Lydd-on-Sea (2 miles north), Greatstone-on-Sea (4 miles north), Lydd (4 miles north-west), Littlestone-on-Sea (4 miles north) and New Romney (5 miles north). We also work in nearby towns such as Folkestone (14 miles north-east), Hythe (11 miles north-east), Cheriton (14 miles north-east), South Willesborough (15 miles north), Dymchurch (8 miles north) and Willesborough (15 miles north).
Around Dungeness
Locally, jobs take us to homes and businesses close to Britannia Inn, among other places. Other landmarks nearby include Lydd Town Museum (3.7 miles north-west). Not far away are RSPB Dungeness and Burnthouse Pen.
Different surfaces, different methods
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Composite doors
Front doors take the weather head on. We pay most attention there.
When to call us in Dungeness
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, and a gap filled solid can’t flex. Backing rod sets the right depth.
Look out for these signs:
- Water coming in at the bottom corners of a door
- Black, perished sealant on frames
- Hard, cracked sealant around windows
- Whistling draughts around closed windows
In and around Dungeness, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- How the colour is chosen
- Is the old sealant removed completely?
- Who turns up on the day
- Is VAT in the price?
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take most of a day for a typical house, less for a few frames. In a small place like Dungeness, access is normally the main thing to plan. 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or email us.
Read more
When it isn’t the sealant
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- Damp problems in the wall away from the window
- A door that needs adjusting, rehanging or new seals
- Condensation trapped between the panes
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Window sills
- Patio & French doors
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Walk round the house once a year and look at the joints
- Keep timber frames painted
- Keep paint off silicone joints
- Wash the frames with mild soapy water
Silicone cannot normally be painted, so if you’re planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.