Kent · England
Window Mastic in Nonington
Window mastic in Nonington from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- A bead that doesn’t match the frame
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Window mastic in Nonington, done properly
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you have gaps between the frame and the inside reveal and cracked sealant at the sill ends, we can put it right, whatever the surface.
In a village or hamlet like Nonington, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Nonington (CT15)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Window mastic in Nonington: local notes
Historic houses like Goodnestone Park (about 1.4 miles north) are a reminder that the area around Nonington has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Nonington Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Nonington is about 7 miles north-west of Dover, in Kent. Every kind of property in Nonington is covered for window mastic. The work is guaranteed for a year. Nonington is one of 922 places in Kent we cover. Our Chelmsford page covers work nearby (48 miles or so).
Every address in CT15 is covered for window mastic. Streets in the area include Vicarage Lane, St Mary's Close and Park View Rise, and we cover them all. Close by, we work in Snowdown (1 mile south-west), Frogham (1 mile south), Ratling (1 mile north-west), Chillenden (1 mile north-east) and Barfrestone (1 mile south-east). We also work in nearby towns such as Canterbury (7 miles north-west), Margate (13 miles north-east), Dover (7 miles south-east), Folkestone (10 miles south), Ramsgate (11 miles north-east) and Broadstairs (13 miles north-east).
Near you in Nonington
The closest station to Nonington is Aylesham station, about 0.8 miles west of the centre.
Nearby places to Nonington
Other services in Nonington
When something else is needed
New sealant can’t fix everything, and we will tell you before work begins. Sealant will not put right:
- A frame that has rotted at the joint
- Penetrating damp from a failed cavity tray or render
- Faulty window hardware
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Composite doors
- Window sills
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Aluminium frames
Landlord and commercial work in Nonington
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Do you need window mastic in Nonington?
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
The problems people normally mention when they call are:
- Draughts coming in around windows and doors
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
- Gaps left after new windows were fitted
For landlords with property near Aylesham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- Whether VAT is included
- Is the old sealant removed completely?
- Who does the work, and how experienced they are
- How the colour is chosen
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Ventilate rooms so frames do not stay wet inside
- Make sure the drainage slots aren’t blocked
- Don’t use solvent cleaners on the joint
- Keep jet washers away from the mastic
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
How it works
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Nonington, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, ring 0345 464 0079 or drop us an email.
Advice
Nonington questions
Do you cover smaller places like Nonington?
Yes. Nonington is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Nonington in your area for window mastic?
Yes, Nonington is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
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 usually suit brown.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Can new window sealant be painted?
Silicone generally won’t take paint. Let us know beforehand, and we will use a paintable product where it suits.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Nonington.
What the job involves on each surface
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.