Kent · England
Nettlestead Window Mastic
Professional window mastic in and around Nettlestead, with old sealant always removed completely.
- Untidy mastic left by window fitters
- Draughts coming in around windows and doors
- Draughty joints inside around the window
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Check the mastic once a year
- Make sure the drainage slots aren’t blocked
- Use gentle cleaners on frames and sealant
- Keep timber frames painted
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Window mastic in Nettlestead
Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on timber windows & doors, patio & French doors and uPVC windows, and common reasons people get in touch are untidy mastic left by window fitters and leaking joints at the ends of sills.
Around Nettlestead, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Every job comes with a 12-month guarantee, wherever you are in Kent.

- Location
- Nettlestead (ME18)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Nettlestead
With historic houses such as Old Soar Manor (about 4.3 miles west) nearby, there’s older building stock in the area around Nettlestead as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much 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 Wateringbury Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near St Mary's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Nettlestead is about 5 miles west of Maidstone, in Kent. Wherever you are in the ME18 postcode area, we cover window mastic for homes and businesses. We cover 922 towns and villages across Kent. There’s also a page for London, roughly 28 miles from Nettlestead.
Work in ME18 works the same way as everywhere else we cover. Streets in the area include Henrys Close, Glenleigh Road and Orchard Crescent, and we cover them all. Close by, we work in Wateringbury (1 mile north-east), Red Hill (1 mile north-east), Teston (1 mile north-east), Nettlestead Green (1 mile south) and West Farleigh (2 miles east). Within a short drive, we also cover Maidstone (5 miles east), Sittingbourne (15 miles north-east), Sevenoaks (10 miles west), Royal Tunbridge Wells (10 miles south-west), Gravesend (13 miles north) and Tonbridge (7 miles south-west).
Landmarks near Nettlestead
We work in homes and buildings around The Railway pub, among other places. There’s a railway station in Nettlestead itself: Wateringbury station. Well-known places in the area include Teapot Island (1.9 miles south) and Leybourne Castle (3.8 miles north).
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. In a small place like Nettlestead, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What you get with us
- Quality sealants from Arbo and Everbuild
- More than 20 years in sealant work
- Old sealant always removed completely
- A 12-month guarantee on all work
Take a look at our cost guide or our reviews.
Do you need window mastic in Nettlestead?
Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Most people get in touch after spotting one of these:
- Old mastic that has gone black or come away
- Gaps left after new windows were fitted
- Whistling draughts around closed windows
- A bead that doesn’t match the frame
If you let a flat or house near Wateringbury station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Before booking anyone
- What insurance they hold
- What the cure time is
- Whether you can choose the colour
- Is VAT in the price?
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Your questions about window mastic in Nettlestead
Will you come out to Nettlestead?
Yes, Nettlestead is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Wateringbury station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Are you insured?
Yes. We are fully insured.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
Nearby places to Nettlestead
Other services in Nettlestead
What happens on the day
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Somewhere as small as Nettlestead, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Preparing for the visit
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
We quote each job on its own. Simply ring 0345 464 0079 or email us and describe the job, and photos are welcome.
Related advice
How we quote for window mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- How much there is to do
- Which sealant suits the joint
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Helping us quote
To make quoting easier, let us know:
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
How the job changes by surface
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
