Kent · England
Window & door mastic in Wanshurst Green, Kent
Problem with your window and door frames in Wanshurst Green? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Old mastic that has gone black or come away
- Rushed sealant from a window installation
- Leaking joints at the ends of sills
Window mastic in Wanshurst Green, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on aluminium frames, timber windows & doors and patio & French doors, and people most often call us about gaps between the frame and the inside reveal and rushed sealant from a window installation.
Homes in small places like Wanshurst Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Wanshurst Green (TN12)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Keep timber frames painted
- Air rooms to keep condensation down around windows
- Clean frames with a soft cloth and soapy water
- Do not paint over the silicone
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. A new joint closes it up.
Nearby places to Wanshurst Green
Also in Wanshurst Green
Landlords, agents and businesses in Wanshurst Green
If you manage several properties in or around Wanshurst Green, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from an hour or two to a full day, depending on how many frames there are and we leave things clean and tidy. In a small place like Wanshurst Green, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- 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.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
Get a quote
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
Window mastic in Wanshurst Green: local notes
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.
If you let a flat or house near Marden station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Wanshurst Green is about 6 miles south of Maidstone, in Kent. If you need window mastic in Wanshurst Green, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Kent from our Crawley base, Wanshurst Green included. Wanshurst Green is one of 922 towns and villages in Kent where we work. Crawley is on our list too, around 31 miles away.
Our applicators cover all of the TN12 postcode area for window mastic and the streets around it. If you’re just outside Wanshurst Green, we cover St Ann's Green (1 mile north), Milebush (1 mile north-west), Underling Green (1 mile north), Marden Thorn (1 mile south) and Cross-at-Hand (1 mile north-east). We also work in nearby towns such as Maidstone (6 miles north), Ashford (15 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (11 miles west), Tonbridge (11 miles west) and Kings Hill (8 miles north-west).
What’s near Wanshurst Green
For rail, the closest station is Marden station, about 1.2 miles west of the centre. A little further out are South East Romany Museum (0.5 miles south-west) and Sutton Valence Castle (4.1 miles north-east).
What we cannot put right
Before booking, it’s worth knowing the limits:
- A sash or casement that will not close properly
- A door that needs adjusting, rehanging or new seals
- A failed sealed unit that has misted up
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before booking.
Surfaces we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Window sills
- Aluminium frames
- Timber windows & doors
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Questions from Wanshurst Green
Is Wanshurst Green within the area you cover?
Yes, Wanshurst Green is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Wanshurst Green for window mastic?
Yes, Wanshurst Green is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can you match the sealant to my frames?
Generally, yes. Mention the frame colour when you ask for a quote and we’ll match it as closely as we can.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
I rent my home. Can I book you?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Signs you need window mastic in Wanshurst Green
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
Keep an eye out for any of the following:
- Hard, cracked sealant around windows
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
For an older house near a landmark such as St Michael and All Angels Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- How hidden problems are handled
- How much experience the applicator has
- How the colour is chosen
- Whether VAT is included
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. Older cottages and farmhouses around Wanshurst Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why us?
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work