Kent · England
Window Mastic in Great Mongeham
Window and door frames in Great Mongeham need attention? We remove the old material, prepare the joints and seal them properly.
- Gaps where the sill meets the wall
- Gaps between the frame and the inside reveal
- Sealant in the wrong colour for the frame
How we handle window mastic in Great Mongeham
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we’ll tell you. If you are dealing with untidy mastic left by window fitters and rain getting in at the frame or under the sill, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Great Mongeham is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Every job is covered by a 12-month guarantee.
- Where
- Great Mongeham (CT14)
- Region
- Kent
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
If you manage several properties in or around Great Mongeham, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
How the visit works
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. Most jobs take a morning for a couple of windows and a door. Somewhere like Great Mongeham needs a little journey planning: 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.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
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When it isn’t the sealant
In fairness, some problems need a different trade:
- A failed sealed unit that has misted up
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Joints and surfaces we work on
- Composite doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Patio & French doors
Towns and villages near Great Mongeham
More services for Great Mongeham
Why it’s worth doing now in Great Mongeham
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that is needed. Problems with the glass or gaskets are for a window company, and we’ll say so. Where a wall is exposed, as many are in small places like Great Mongeham, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Why book with us
- Over 20 years’ experience
- A 12-month guarantee on all work
- We agree the colour with you first
- We never seal over old sealant
Different surfaces, different methods
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
Window mastic in Great Mongeham: local notes
Great Mongeham is within about 3 miles of 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 window and door frames, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Hornbeam Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Walmer station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Great Mongeham is about 1 mile west of Deal, in Kent. We provide window mastic to householders, landlords and businesses in Great Mongeham and nearby. Great Mongeham is one of 922 towns and villages in Kent we cover. We also work in Chelmsford, around 52 miles away.
We work across the CT14 postcode area for window mastic and the streets around it. That includes homes and businesses on Church Path, Northbourne Road and Mongeham Road. Other places close to Great Mongeham include Mill Hill (1 mile east), Sholden Meadows (1 mile north-east), Sholden (1 mile north-east), Ripple (1 mile south) and Northbourne (1 mile north-west). We also work in nearby towns such as Canterbury (13 miles west), Margate (12 miles north), Dover (6 miles south-west), Folkestone (12 miles south-west), Ramsgate (9 miles north) and Broadstairs (11 miles north).
Near you in Great Mongeham
We work in homes and buildings around Betteshanger Park, Castle Community College and The Mill Inn, among other places. The nearest railway station is Walmer station, roughly 1.2 miles south-east. Well-known places in the area include Deal Castle (1.9 miles east) and Kent Museum of the Moving Image (1.8 miles east). Not far away are Monk's Wall nature reserve.
Do you need window mastic in Great Mongeham?
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
Keep an eye out for any of the following:
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
- Cracked or shrunken mastic around the frame
- Rushed sealant from a window installation
In the older streets around Church of St Martin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Which sealant they’ll use, and why
- The length of the guarantee
- Who turns up on the day
- How long to leave it before use
Common questions in Great Mongeham
Is Great Mongeham within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Walmer station?
Yes. We work for letting agents and landlords as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Can you reach windows above the ground floor?
Usually, yes. We plan safe access before the job, so mention the height and anything in the way.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.
Do you have sealant for grey or black windows?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
How long should I leave it?
It depends on the product and the temperature. We tell you how long to leave it before we go.
What affects the quote in Great Mongeham
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- The size of the job
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
What we need to know
When you call or email, it’s useful to know:
- Whether it has been sealed before
- Photos by email, if that’s easy
- Any access issues, like height or stairs
- Where the property is
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.