Kent · England
Window Mastic in Whetsted
We cover Whetsted for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Cracked sealant at the sill ends
- Mastic that has split away from the wall
- Old mastic that has gone black or come away
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Window mastic in Whetsted, done properly
Around Whetsted we seal all kinds of frames: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. Common call-outs are for cracked internal joints between frame and plaster and sealant in the wrong colour for the frame, across composite doors, timber windows & doors and aluminium frames.
In a village or hamlet like Whetsted, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
We stand behind the work with a one-year guarantee.
- Location
- Whetsted (TN12)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Whetsted: your questions answered
Is Whetsted within the area you cover?
Yes. Whetsted 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.
Can you help a landlord with a rental near Paddock Wood station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Does the work come with a guarantee?
Yes, with our one-year guarantee. A yearly look at the joints helps them last.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Are you insured?
Yes. We’re fully insured.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Whetsted homes and the weather
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.
Schools such as Paddock Wood Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Five Oak Green Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Whetsted is about 4 miles east of Tonbridge, in Kent. Whether you are in the middle of Whetsted or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. We cover 922 towns and villages across Kent. There’s also a page for Crawley, roughly 25 miles from Whetsted.
We work across the TN12 postcode area for window mastic. Other places close to Whetsted include Five Oak Green (1 mile south-west), Paddock Wood (1 mile south-east), Colt's Hill (1 mile south-west), Capel (2 miles south-west) and Crockhurst Street (2 miles west). Within a short drive, we also cover Maidstone (8 miles north-east), Sevenoaks (10 miles north-west), Royal Tunbridge Wells (6 miles south-west), Tonbridge (4 miles west), Kings Hill (6 miles north) and Foley Park (9 miles north-east).
Around Whetsted
Around Whetsted, our work takes us to homes and buildings near The Kings Head pub, Mascalls School and Foal Hurst Wood. For rail, the closest station is Paddock Wood station, roughly 0.9 miles south-east. Nearby you’ll also find Tonbridge Castle (4.4 miles west) and Tunbridge Wells Hospital (4.1 miles south-west). Green spaces nearby include Tudeley Woods RSPB reserve.
Why it’s worth doing now in Whetsted
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Around Whetsted, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Whetsted customers choose us
- Sealant colour chosen to suit
- ARBOMaster approved applicator
- One-year guarantee on every job
- Old sealant always removed completely
Read how sealant jobs are priced and our reviews.
How the visit works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Whetsted, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided 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.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or drop us an email.
Read more
What we are called out for in Whetsted
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and the wood moves with damp as well as heat.
The most common problems we see are:
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
- Sealant in the wrong colour for the frame
Letting a property close to Paddock Wood station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What your quote should include
- What insurance they hold
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- Whether you can choose the colour
What we cannot put right
It helps to know what we cannot do:
- A failed sealed unit that has misted up
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that will not close properly
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Composite doors
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Keep jet washers away from the mastic
- Ventilate rooms so frames do not stay wet inside
- Check the mastic once a year
- Do not paint over the silicone
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
Leaks usually show up in wet, windy weather, 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.
What else we do in Whetsted
Landlords, agents and businesses in Whetsted
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works.