Kent · England
Chart Sutton Window Mastic
Window mastic across Chart Sutton and nearby, with old sealant always removed completely and a 12-month guarantee.
- Mastic that has split away from the wall
- Black, perished sealant on frames
- Rushed sealant from a window installation
Signs you need window mastic in Chart Sutton
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
People usually contact us after spotting something like this:
- Cracked sealant at the sill ends
- Sealant in the wrong colour for the frame
- Draughts coming in around windows and doors
- Hard, cracked sealant around windows
Managing a site like Langley Park Primary Academy? Then its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Whether they’re fully insured
- Whether VAT is included
- What product goes in the joint
- What happens if they find a problem under the old sealant
Window mastic in Chart Sutton
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you’re dealing with untidy mastic left by window fitters and leaking joints at the ends of sills, we can help.
Somewhere as small as Chart Sutton, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Where
- Chart Sutton (ME17)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for window mastic
There’s no set price list, because jobs vary so much. What we look at:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- The number of rooms or windows
- The type of sealant required
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us and we will talk you through it.
What we need to know
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- The type of property
- If someone has resealed it before
- How many joints, rooms or windows are involved
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
How to look after the new joints
So the new joints stay in good condition:
- Look round the frames every year or so
- Avoid blasting the frames with a pressure washer
- Wash the frames with mild soapy water
- Keep paint and stain on wooden frames in good order
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
FAQs for Chart Sutton
Do you cover Chart Sutton for window mastic?
Yes. We work across London and the South East, and Chart Sutton is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Can you help a landlord with a rental near Bearsted station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Do you work on first-floor windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Is the new sealant paintable?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.
Landlords, agents and businesses in Chart Sutton
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Different surfaces, different methods
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Nearby places to Chart Sutton
Also in Chart Sutton
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on how much there is to do. Somewhere like Chart Sutton needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- 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.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
Frames and glazing around Chart Sutton
With historic houses such as Stoneacre (about 2 miles north) nearby, there’s older building stock in the area around Chart Sutton 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. 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.
Letting a property close to Bearsted station? Then renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as Church of St Michael, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Chart Sutton is about 3 miles south-east of Maidstone, in Kent. Anywhere in ME17, we can carry out window mastic at your property. Our area takes in 922 places across Kent, from the larger towns to small villages. There’s also a page for London, roughly 34 miles from Chart Sutton.
We cover every part of the ME17 postcode area for window mastic and the streets around it. That includes homes and businesses on Plough Wents Road, Amber Lane and Marsham Crescent. If you’re just outside Chart Sutton, we cover Wierton (1 mile south-west), Five Wents (1 mile east), Warmlake (1 mile east), Langley (1 mile north-east) and Sutton Valence (1 mile south-east). Larger places within reach include Maidstone (3 miles north-west), Ashford (14 miles south-east), Sittingbourne (11 miles north-east), Royal Tunbridge Wells (14 miles south-west), Tonbridge (13 miles west) and Faversham (15 miles north-east).
What’s near Chart Sutton
We work in homes and buildings around The Plough Inn, Cornwallis Academy and Senacre Technology College, among other places. The nearest railway station is Bearsted station, about 3.6 miles north of the centre. A little further out are KIMS hospital (4.4 miles north) and The Dog Collar Museum (3.1 miles north-east).