Kent · England
Window Mastic in Grafty Green
Window mastic across Grafty Green and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Mastic that has split away from the wall
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Window mastic for homes and businesses in Grafty Green
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. If you have black, perished sealant on frames and cracked internal joints between frame and plaster, we can put it right.
Homes in small places like Grafty Green often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Where
- Grafty Green (ME17)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Grafty Green
Can you do window mastic in Grafty Green?
Yes, Grafty Green is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Is Grafty Green within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you have insurance?
Yes. We’re fully insured, and we can confirm the details when we quote.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels across Kent.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or email us.
When to call us in Grafty Green
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Signs it’s time to call us include:
- Rain getting in at the frame or under the sill
- Cracked or shrunken mastic around the frame
- Untidy mastic left by window fitters
- Gaps where the sill meets the wall
If you live in an older home near Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- Which colour the sealant will be
Keeping the joints in good condition
After the cure time, these simple habits help:
- Look round the frames every year or so
- Use gentle cleaners on frames and sealant
- Avoid harsh chemicals near the mastic
- Keep timber frames painted
Keep the new mastic undisturbed while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Quotes for window mastic in Grafty Green
The price is agreed before any work begins. It takes into account:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Which sealant suits the joint
- Working hours on commercial sites
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.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- Where the property is
- The rough size of the job
Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job.
What we do, step by step
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes most of a day for a typical house, less for a few frames. Somewhere as small as Grafty Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Related advice
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Around Grafty Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- Domestic, commercial and hotel work
- Any old sealant cut out fully, not covered over
- ARBOMaster approved applicator
- Arbo and Everbuild products
Read what affects the cost and customer reviews.
Towns and villages near Grafty Green
What else we do in Grafty Green
Window mastic in Grafty Green: local notes
Historic houses like Leeds Castle (about 3.5 miles north-west) are a reminder that the area around Grafty Green has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Platts Heath Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Lenham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Grafty Green is about 8 miles south-east of Maidstone, in Kent. Wherever you are in the ME17 postcode area, we can carry out window mastic at your property. 922 places in Kent are on our list. Chelmsford is on our list too, about 37 miles from Grafty Green.
We work across the ME17 postcode area for window mastic and the streets around it. You will find streets such as Church Road, Woodcock Lane and Headcorn Road. Nearby, we also carry out window mastic in Liverton Street (1 mile north), Boughton Malherbe (1 mile north-east), Broadstone (1 mile south-west), Eastwood (1 mile west) and Platt's Heath (1 mile north). Larger places within reach include Maidstone (8 miles north-west), Ashford (9 miles south-east), Sittingbourne (10 miles north), Faversham (12 miles north-east), Minster (15 miles north) and Kings Hill (13 miles west).
Near you in Grafty Green
In Grafty Green, that means homes and buildings near Kiln Wood, The Kings Head Public House and The Lenham School. For rail, the closest station is Lenham station, roughly 2.1 miles north-east. A little further out are The Dog Collar Museum (3.4 miles north-west) and Coldbridge Castle (1 mile south-east).
How the job changes by surface
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.