Kent · England
Highstead Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Highstead and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
- Hard, cracked sealant around windows
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. In a small place like Highstead, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Why us?
- Colour picked to suit the job
- Sanitary silicone with an anti-fungal additive in wet areas
- Arbo and Everbuild products
- An ARBOMaster approved applicator
See how sealant jobs are priced and our reviews.
How we handle window mastic in Highstead
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just call 0345 464 0079 or drop us an email and tell us how many frames there are and how they’re reached for window mastic in Highstead. If you are dealing with old mastic that has gone black or come away and gaps between the frame and the inside reveal, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Highstead is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Highstead (CT3, CT6)
- Wider area
- 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 Highstead: local notes
Highstead is close to 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mary the Virgin include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Herne Bay station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Highstead is about 2 miles south-east of Herne Bay, in Kent. Jobs in Highstead get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 922 places across Kent, from the larger towns to small villages. There’s also a page for Chelmsford, roughly 40 miles from Highstead.
Jobs for window mastic in CT3 and CT6 works the same way as everywhere else we cover. If you’re just outside Highstead, we cover Hawthorn (1 mile north), Boyden Gate (1 mile south-east), Millbank (1 mile south-west), Old Tree (1 mile south) and Hillborough (1 mile north). Larger places within reach include Canterbury (7 miles south-west), Margate (9 miles east), Ramsgate (10 miles east), Broadstairs (11 miles east), Whitstable (6 miles west) and Deal (13 miles south-east).
What’s near Highstead
We work in homes and buildings around Bishopstone Cliffs and Hog & Donkey pub. For rail, the closest station is Herne Bay station, roughly 2.7 miles west of the centre. Well-known places in the area include Whitstable and Tankerton Hospital (5.6 miles west). Not far away are West Blean and Thornden Woods.
Highstead questions
Is Highstead within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is window mastic in a coastal place like Highstead any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit, while a whole house takes longer. We confirm the timing with your quote.
Can new window sealant be painted?
Silicone generally will not take paint. Let us know beforehand, and we will use a paintable product where it suits.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or email us.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Highstead, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
Get a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
Advice
Also near Highstead
More services for Highstead
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Faulty window hardware
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Aluminium frames
- Composite doors
- uPVC windows
- Patio & French doors
- Window sills
- Timber windows & doors
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Landlords, agents and businesses in Highstead
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Signs you need window mastic in Highstead
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid cannot stretch. That’s what backing rod is for.
Common reasons people contact us include:
- Mastic that is falling out in pieces
- Rain getting in at the frame or under the sill
- Draughts coming in around windows and doors
- Draughty joints inside around the window
For site and facilities teams at buildings such as Reculver Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- Which colour the sealant will be
- How long the guarantee is
- Which sealant they’ll use, and why
- When the joint can take water or movement
How the job changes by surface
Aluminium frames
Coated aluminium needs a compatible sealant, and acetoxy silicones aren’t used, as they can attack some metals. We use a neutral-cure product.
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.