Kent · England
Window & door mastic in East Stourmouth, Kent
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in East Stourmouth. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
- Leaking joints at the ends of sills
Window mastic in East Stourmouth
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you have gaps where the sill meets the wall and draughts coming in around windows and doors, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in East Stourmouth is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- East Stourmouth (CT3)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. Around East Stourmouth, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- A 12-month guarantee on all work
- 180+ five-star Google reviews
- An ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
Take a look at our cost guide or what customers say.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
- A door that needs adjusting, rehanging or new seals
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
What the job involves on each surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from an hour or two to a full day, depending on how many frames there are, and the area is left clean. Somewhere as small as East Stourmouth, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- 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.
- Finally we tidy up and check each joint.
Preparing for the visit
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
- Move anything stored near the joints
How to get a quote
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Read more
Frames and glazing around East Stourmouth
Historic houses like Quex Park (about 4.7 miles north-east) are a reminder that the area around East Stourmouth has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
Rented homes near Minster station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as All Saints Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
East Stourmouth is about 6 miles south-east of Herne Bay, in Kent. Our applicators cover window mastic for homes and businesses in East Stourmouth and the surrounding area, as part of our work across Kent. 922 places in Kent are on our list, large and small. We also work in Chelmsford, around 44 miles away.
Jobs for window mastic in CT3 works the same way as everywhere else we cover. You will find streets such as The Street and School Lane, and we cover them all. We also cover the places around East Stourmouth: West Stourmouth (1 mile west), Westmarsh (1 mile south-east), Preston (1 mile south-west), Ware (2 miles south-east) and Sarre (2 miles north). We also work in nearby towns such as Canterbury (8 miles west), Margate (7 miles north-east), Dover (13 miles south), Ramsgate (7 miles east), Broadstairs (8 miles east) and Whitstable (10 miles west).
What’s near East Stourmouth
Around East Stourmouth, our work takes us to homes and buildings near Grove Ferry Picnic Area and the streets around them. East Stourmouth’s nearest station is Minster station, roughly 3.1 miles east. The countryside around East Stourmouth includes Monk's Wall nature reserve.
Also in East Stourmouth
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Your questions about window mastic in East Stourmouth
Can you help a landlord with a rental near Minster station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Is East Stourmouth 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.
Can new window sealant be painted?
It depends on the sealant. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you’re decorating and we’ll choose accordingly.
Can you match the sealant to my frames?
Normally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
How much does window mastic cost in East Stourmouth?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before work begins.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Use gentle cleaners on frames and sealant
- Ventilate rooms so frames do not stay wet inside
- Do not aim a pressure washer at the joints
- Repaint timber before it’s bare
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Quotes for window mastic in East Stourmouth
The price is agreed before any work begins. It’s based on:
- Mould in or behind the old joints
- The old material and how stubborn it is
- How much there is to do
- Working hours on commercial sites
Doing several joints on one visit is normally more efficient than separate visits. We will send you a clear quote for the lot.
What we need to know
To make quoting easier, let us know:
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- The type of property
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and send you a clear quote.