Kent · England
Window & door mastic in Greenhill, Kent
Specialist window mastic for Greenhill: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Leaking joints at the ends of sills
- Sealant in the wrong colour for the frame
- Mastic that has split away from the wall
How we handle window mastic in Greenhill
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you are dealing with hard, cracked sealant around windows and old mastic that has gone black or come away, we can help.
Around Greenhill, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
All of our work is guaranteed for twelve months.
- Place
- Greenhill (CT6)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a morning for a couple of windows and a door. Parking around Greenhill is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First, we go round the frames with you and agree the list.
- 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
- Try not to wet indoor joints just before the visit
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear price.
Advice
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Wipe condensation off the frames
- Keep jet washers away from the mastic
- Keep paint off silicone joints
- Wash the frames with mild soapy water
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just call 0345 464 0079 or drop us an email.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Questions from Greenhill
Does the coastal weather in Greenhill affect outside sealant?
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 Greenhill within the area you cover?
Yes. Greenhill is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Can tenants book the work?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Can you get sealant to suit coloured frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
Can new sealant go over the old?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Why it’s worth doing now in Greenhill
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we will tell you. Around Greenhill, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
What you get with us
- Domestic, commercial and hotel work
- Full insurance on every job
- A choice of colours where the product allows
- You choose the colour before work begins
Windows and doors in Greenhill
Greenhill is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Thornden Wood Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Herne Bay station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Greenhill is about 1 mile south-west of Herne Bay, in Kent. We provide window mastic to homeowners, landlords and businesses in Greenhill and the surrounding area, as part of our work across Kent. Across Kent, we cover 922 places, Greenhill among them. There’s also a page for Chelmsford, roughly 37 miles from Greenhill.
We work across CT6 for window mastic and the streets around it. If you need window mastic at a property on Love Street Close, Herne Drive and Matthews Road or anywhere close by, our applicators can take on the job. We also cover the places around Greenhill: Eddington (1 mile east), Bullockstone (1 mile south-east), Herne Common (1 mile south-east), Herne Bay (1 mile north-east) and Herne (1 mile south-east). Further out, we also cover Canterbury (6 miles south), Margate (12 miles east), Ramsgate (13 miles east), Broadstairs (14 miles east), Whitstable (3 miles west) and Faversham (10 miles west).
Near you in Greenhill
Locally, jobs take us to homes and businesses close to The Share And Coulter Public House, Curtis Wood and Herne Bay High School. For rail, the closest station is Herne Bay station, about 0.6 miles north-east. A little further out are Whitstable and Tankerton Hospital (2.4 miles west) and Tankerton Castle (3.1 miles west). For a walk, there’s West Blean and Thornden Woods.
Landlords, agents and businesses in Greenhill
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
What we’re called out for in Greenhill
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
The most common problems we see are:
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
- Draughts coming in around windows and doors
In the older streets around St Peter, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How much experience the applicator has
- What happens if the job turns out different
- Whether all the old sealant comes out first
- How long the guarantee is
Also near Greenhill
Also in Greenhill
What the job involves on each surface
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.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. We use a neutral-cure product.
What affects the quote in Greenhill
You’ll get a clear quote before we start. It’s based on:
- Any working-time requirements on site
- Whether there’s mould to deal with
- The size of the job
- How easy the joints are to reach
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Helping us quote
You do not need to know the technical terms. Just tell us:
- How we’d reach the joints
- If someone has resealed it before
- The address or postcode of the job
- What’s wrong with the joints now
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.