Kent · England
Window & door mastic in Challock, Kent
Window and door frames in Challock need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Damp patches on the reveal after heavy rain
- Leaking joints at the ends of sills
- Draughty joints inside around the window
What we can’t put right
Sealant is not the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Timber windows & doors
- Window sills
- Composite doors
- Aluminium frames
- uPVC windows
- Patio & French doors
Window mastic in Challock, done properly
From a single sill to a whole house of windows, you’ll get a clear quote before any work starts. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached for window mastic in Challock. We work on aluminium frames, timber windows & doors and window sills, and the jobs we see most are gaps where the sill meets the wall and gaps between the frame and the inside reveal.
Somewhere as small as Challock, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, it’s backed by our 12-month guarantee in Challock and across Kent.
- Where
- Challock (TN25)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Towns and villages near Challock
What else we do in Challock
Surface by surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Clean frames with a soft cloth and soapy water
- Avoid harsh chemicals near the mastic
- Look round the frames every year or so
- Ventilate rooms so frames do not stay wet inside
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.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Common questions in Challock
Can you help a landlord with a rental near Wye station?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you cover Challock for window mastic?
Yes. We work across London and the South East, and Challock is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Can new window sealant be painted?
Silicone generally will not take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
Challock homes and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Belmont House and Gardens (about 3.9 miles north) are a reminder that the area around Challock 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.
If you live in an older home near Church of St Cosmas and St Damian, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Challock Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Wye station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Challock is about 5 miles north of Ashford, in Kent. Wherever you are in the TN25 postcode area, we cover window mastic for homes and businesses. We cover 922 towns and villages across Kent. Chelmsford is on our list too, about 40 miles from Challock.
Every address in TN25 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on Chapmans Close, Blind Lane and Old Clock House Green or anywhere close by, we can help. Other places close to Challock include Pested (1 mile north), Paddock (1 mile west), Stocker's Head (3 miles west), Badlesmere (3 miles north) and Throwley Forstal (3 miles north). Within a short drive, we also cover Maidstone (15 miles west), Ashford (5 miles south), Canterbury (10 miles north-east), Sittingbourne (11 miles north-west), Whitstable (11 miles north-east) and Faversham (7 miles north).
Landmarks near Challock
Typical jobs here are in homes near The Chequers pub and The Hayesbrook School. For rail, the closest station is Wye station, roughly 3.3 miles south-east of the centre. A little further out are Tower keep castle at Chilham (3.9 miles north-east) and William Harvey Hospital (5.6 miles south).
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes most of a day for a typical house, less for a few frames. Somewhere like Challock needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Get a quote
For window mastic in Challock, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Leave it or put it right?
If you are painting or rendering, reseal at the same time. Fresh joints finish the job neatly. Around Challock, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- White, clear, grey or another colour, product permitting
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
- Colour agreed with you before we start
Read our cost guide and what customers say.
