Kent · England
Hoath Window Mastic
Specialist window mastic for Hoath: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Gaps between the frame and the inside reveal
- Cold air getting in at the frame edge
- A bead that doesn’t match the frame
What the job involves on each surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it, where a rigid one would crack.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
How we handle window mastic in Hoath
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on aluminium frames, patio & French doors and composite doors, and common reasons people get in touch are cold air getting in at the frame edge and rain getting in at the frame or under the sill.
Somewhere as small as Hoath, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
You get a 12-month guarantee, the same in Hoath as everywhere else we work.
- Place
- Hoath (CT3)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When it is not the sealant
New sealant cannot fix everything, and we’ll tell you before work begins. It won’t solve:
- Damp problems in the wall away from the window
- A sash or casement that won’t close properly
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Hoath
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Composite doors
- Window sills
- Patio & French doors
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Windows and doors in Hoath
Hoath is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Hoath Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Herne Bay station, renewing tired window mastic between tenants heads off draught and damp complaints.
Hoath is about 3 miles south-east of Herne Bay, in Kent. For window mastic in and around Hoath, please ring 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base. Hoath is one of 922 places in Kent where we work. We also work in Chelmsford, around 40 miles away.
We cover every part of the CT3 postcode area for window mastic. If you need window mastic at a property on Church Road, Marley Lane and Barn Close or a nearby road, we can help. Neighbouring places we cover for window mastic include Maypole (1 mile north), Knave's Ash (1 mile west), Old Tree (1 mile north-east), Millbank (1 mile north) and Hollow Street (1 mile east). Within a short drive, we also cover Canterbury (5 miles south-west), Margate (10 miles east), Dover (15 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles west).
Local landmarks in Hoath
Typical jobs here are in homes near Spires Academy and Curtis Wood, among other places. The closest station to Hoath is Herne Bay station, roughly 2.9 miles north-west. A little further out are St Martins Hospital (4.6 miles south-west). Not far away are West Blean and Thornden Woods.
What we do, step by step
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Somewhere like Hoath needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Want a quote for window mastic? Please call 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
When to call us in Hoath
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The most common problems we see are:
- Gaps between the frame and the inside reveal
- Old mastic that has gone black or come away
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
For an older house near a landmark such as Church of the Holy Cross, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- Whether VAT is included
- How much experience the applicator has
Hoath: your questions answered
Is window mastic in a coastal place like Hoath any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Herne Bay station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do you work in Hoath?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, Hoath included.
Can new window sealant be painted?
It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before we start.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
How long will my window job take?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
Why it’s worth doing now in Hoath
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Around Hoath, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
Why us?
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
How to look after the new joints
Looking after new joints is easy:
- Make sure the drainage slots are not blocked
- Look round the frames every year or so
- Keep solvents and bleach off the sealant
- Don’t aim a pressure washer at the joints
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Wet, windy weather is when failed mastic shows itself, 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.